3DPrinting/PrusaSlicer-NonPlainar
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
d1529296c6
PrusaSlicer-NonPlainar/src/slic3r/GUI/GLGizmo.cpp

2685 lines
92 KiB
C++
Raw Blame History

// Include GLGizmo.hpp before I18N.hpp as it includes some libigl code, which overrides our localization "L" macro.
#include "GLGizmo.hpp"
#include <GL/glew.h>
#include <Eigen/Dense>
#include "libslic3r/libslic3r.h"
#include "libslic3r/Geometry.hpp"
#include "libslic3r/Utils.hpp"
#include "libslic3r/SLA/SLACommon.hpp"
#include "libslic3r/SLAPrint.hpp"
#include <cstdio>
#include <numeric>
#include <algorithm>
#include <wx/sizer.h>
#include <wx/panel.h>
#include <wx/button.h>
#include <wx/checkbox.h>
#include <wx/stattext.h>
#include <wx/debug.h>
#include "Tab.hpp"
#include "GUI.hpp"
#include "GUI_Utils.hpp"
#include "GUI_App.hpp"
#include "I18N.hpp"
#include "PresetBundle.hpp"
#include <wx/defs.h>
// TODO: Display tooltips quicker on Linux
static const float DEFAULT_BASE_COLOR[3] = { 0.625f, 0.625f, 0.625f };
static const float DEFAULT_DRAG_COLOR[3] = { 1.0f, 1.0f, 1.0f };
static const float DEFAULT_HIGHLIGHT_COLOR[3] = { 1.0f, 0.38f, 0.0f };
static const float AXES_COLOR[3][3] = { { 1.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, { 0.0f, 0.0f, 1.0f } };
namespace Slic3r {
namespace GUI {
const float GLGizmoBase::Grabber::SizeFactor = 0.025f;
const float GLGizmoBase::Grabber::MinHalfSize = 1.5f;
const float GLGizmoBase::Grabber::DraggingScaleFactor = 1.25f;
GLGizmoBase::Grabber::Grabber()
: center(Vec3d::Zero())
, angles(Vec3d::Zero())
, dragging(false)
, enabled(true)
{
color[0] = 1.0f;
color[1] = 1.0f;
color[2] = 1.0f;
}
void GLGizmoBase::Grabber::render(bool hover, float size) const
{
float render_color[3];
if (hover)
{
render_color[0] = 1.0f - color[0];
render_color[1] = 1.0f - color[1];
render_color[2] = 1.0f - color[2];
}
else
::memcpy((void*)render_color, (const void*)color, 3 * sizeof(float));
render(size, render_color, true);
}
float GLGizmoBase::Grabber::get_half_size(float size) const
{
return std::max(size * SizeFactor, MinHalfSize);
}
float GLGizmoBase::Grabber::get_dragging_half_size(float size) const
{
return std::max(size * SizeFactor * DraggingScaleFactor, MinHalfSize);
}
void GLGizmoBase::Grabber::render(float size, const float* render_color, bool use_lighting) const
{
float half_size = dragging ? get_dragging_half_size(size) : get_half_size(size);
if (use_lighting)
::glEnable(GL_LIGHTING);
::glColor3fv(render_color);
::glPushMatrix();
::glTranslated(center(0), center(1), center(2));
::glRotated(Geometry::rad2deg(angles(2)), 0.0, 0.0, 1.0);
::glRotated(Geometry::rad2deg(angles(1)), 0.0, 1.0, 0.0);
::glRotated(Geometry::rad2deg(angles(0)), 1.0, 0.0, 0.0);
// face min x
::glPushMatrix();
::glTranslatef(-(GLfloat)half_size, 0.0f, 0.0f);
::glRotatef(-90.0f, 0.0f, 1.0f, 0.0f);
render_face(half_size);
::glPopMatrix();
// face max x
::glPushMatrix();
::glTranslatef((GLfloat)half_size, 0.0f, 0.0f);
::glRotatef(90.0f, 0.0f, 1.0f, 0.0f);
render_face(half_size);
::glPopMatrix();
// face min y
::glPushMatrix();
::glTranslatef(0.0f, -(GLfloat)half_size, 0.0f);
::glRotatef(90.0f, 1.0f, 0.0f, 0.0f);
render_face(half_size);
::glPopMatrix();
// face max y
::glPushMatrix();
::glTranslatef(0.0f, (GLfloat)half_size, 0.0f);
::glRotatef(-90.0f, 1.0f, 0.0f, 0.0f);
render_face(half_size);
::glPopMatrix();
// face min z
::glPushMatrix();
::glTranslatef(0.0f, 0.0f, -(GLfloat)half_size);
::glRotatef(180.0f, 1.0f, 0.0f, 0.0f);
render_face(half_size);
::glPopMatrix();
// face max z
::glPushMatrix();
::glTranslatef(0.0f, 0.0f, (GLfloat)half_size);
render_face(half_size);
::glPopMatrix();
::glPopMatrix();
if (use_lighting)
::glDisable(GL_LIGHTING);
}
void GLGizmoBase::Grabber::render_face(float half_size) const
{
::glBegin(GL_TRIANGLES);
::glNormal3f(0.0f, 0.0f, 1.0f);
::glVertex3f(-(GLfloat)half_size, -(GLfloat)half_size, 0.0f);
::glVertex3f((GLfloat)half_size, -(GLfloat)half_size, 0.0f);
::glVertex3f((GLfloat)half_size, (GLfloat)half_size, 0.0f);
::glVertex3f((GLfloat)half_size, (GLfloat)half_size, 0.0f);
::glVertex3f(-(GLfloat)half_size, (GLfloat)half_size, 0.0f);
::glVertex3f(-(GLfloat)half_size, -(GLfloat)half_size, 0.0f);
::glEnd();
}
GLGizmoBase::GLGizmoBase(GLCanvas3D& parent)
: m_parent(parent)
, m_group_id(-1)
, m_state(Off)
, m_shortcut_key(0)
, m_hover_id(-1)
, m_dragging(false)
#if ENABLE_IMGUI
, m_imgui(wxGetApp().imgui())
#endif // ENABLE_IMGUI
{
::memcpy((void*)m_base_color, (const void*)DEFAULT_BASE_COLOR, 3 * sizeof(float));
::memcpy((void*)m_drag_color, (const void*)DEFAULT_DRAG_COLOR, 3 * sizeof(float));
::memcpy((void*)m_highlight_color, (const void*)DEFAULT_HIGHLIGHT_COLOR, 3 * sizeof(float));
}
void GLGizmoBase::set_hover_id(int id)
{
if (m_grabbers.empty() || (id < (int)m_grabbers.size()))
{
m_hover_id = id;
on_set_hover_id();
}
}
void GLGizmoBase::set_highlight_color(const float* color)
{
if (color != nullptr)
::memcpy((void*)m_highlight_color, (const void*)color, 3 * sizeof(float));
}
void GLGizmoBase::enable_grabber(unsigned int id)
{
if ((0 <= id) && (id < (unsigned int)m_grabbers.size()))
m_grabbers[id].enabled = true;
on_enable_grabber(id);
}
void GLGizmoBase::disable_grabber(unsigned int id)
{
if ((0 <= id) && (id < (unsigned int)m_grabbers.size()))
m_grabbers[id].enabled = false;
on_disable_grabber(id);
}
void GLGizmoBase::start_dragging(const GLCanvas3D::Selection& selection)
{
m_dragging = true;
for (int i = 0; i < (int)m_grabbers.size(); ++i)
{
m_grabbers[i].dragging = (m_hover_id == i);
}
on_start_dragging(selection);
}
void GLGizmoBase::stop_dragging()
{
m_dragging = false;
for (int i = 0; i < (int)m_grabbers.size(); ++i)
{
m_grabbers[i].dragging = false;
}
on_stop_dragging();
}
void GLGizmoBase::update(const UpdateData& data, const GLCanvas3D::Selection& selection)
{
if (m_hover_id != -1)
on_update(data, selection);
}
float GLGizmoBase::picking_color_component(unsigned int id) const
{
int color = 254 - (int)id;
if (m_group_id > -1)
color -= m_group_id;
return (float)color / 255.0f;
}
void GLGizmoBase::render_grabbers(const BoundingBoxf3& box) const
{
float size = (float)box.max_size();
for (int i = 0; i < (int)m_grabbers.size(); ++i)
{
if (m_grabbers[i].enabled)
m_grabbers[i].render((m_hover_id == i), size);
}
}
void GLGizmoBase::render_grabbers(float size) const
{
for (int i = 0; i < (int)m_grabbers.size(); ++i)
{
if (m_grabbers[i].enabled)
m_grabbers[i].render((m_hover_id == i), size);
}
}
void GLGizmoBase::render_grabbers_for_picking(const BoundingBoxf3& box) const
{
float size = (float)box.max_size();
for (unsigned int i = 0; i < (unsigned int)m_grabbers.size(); ++i)
{
if (m_grabbers[i].enabled)
{
m_grabbers[i].color[0] = 1.0f;
m_grabbers[i].color[1] = 1.0f;
m_grabbers[i].color[2] = picking_color_component(i);
m_grabbers[i].render_for_picking(size);
}
}
}
#if !ENABLE_IMGUI
void GLGizmoBase::create_external_gizmo_widgets(wxWindow *parent) {}
#endif // not ENABLE_IMGUI
void GLGizmoBase::set_tooltip(const std::string& tooltip) const
{
m_parent.set_tooltip(tooltip);
}
std::string GLGizmoBase::format(float value, unsigned int decimals) const
{
return Slic3r::string_printf("%.*f", decimals, value);
}
const float GLGizmoRotate::Offset = 5.0f;
const unsigned int GLGizmoRotate::CircleResolution = 64;
const unsigned int GLGizmoRotate::AngleResolution = 64;
const unsigned int GLGizmoRotate::ScaleStepsCount = 72;
const float GLGizmoRotate::ScaleStepRad = 2.0f * (float)PI / GLGizmoRotate::ScaleStepsCount;
const unsigned int GLGizmoRotate::ScaleLongEvery = 2;
const float GLGizmoRotate::ScaleLongTooth = 0.1f; // in percent of radius
const unsigned int GLGizmoRotate::SnapRegionsCount = 8;
const float GLGizmoRotate::GrabberOffset = 0.15f; // in percent of radius
GLGizmoRotate::GLGizmoRotate(GLCanvas3D& parent, GLGizmoRotate::Axis axis)
: GLGizmoBase(parent)
, m_axis(axis)
, m_angle(0.0)
, m_quadric(nullptr)
, m_center(0.0, 0.0, 0.0)
, m_radius(0.0f)
, m_snap_coarse_in_radius(0.0f)
, m_snap_coarse_out_radius(0.0f)
, m_snap_fine_in_radius(0.0f)
, m_snap_fine_out_radius(0.0f)
{
m_quadric = ::gluNewQuadric();
if (m_quadric != nullptr)
::gluQuadricDrawStyle(m_quadric, GLU_FILL);
}
GLGizmoRotate::GLGizmoRotate(const GLGizmoRotate& other)
: GLGizmoBase(other.m_parent)
, m_axis(other.m_axis)
, m_angle(other.m_angle)
, m_quadric(nullptr)
, m_center(other.m_center)
, m_radius(other.m_radius)
, m_snap_coarse_in_radius(other.m_snap_coarse_in_radius)
, m_snap_coarse_out_radius(other.m_snap_coarse_out_radius)
, m_snap_fine_in_radius(other.m_snap_fine_in_radius)
, m_snap_fine_out_radius(other.m_snap_fine_out_radius)
{
m_quadric = ::gluNewQuadric();
if (m_quadric != nullptr)
::gluQuadricDrawStyle(m_quadric, GLU_FILL);
}
GLGizmoRotate::~GLGizmoRotate()
{
if (m_quadric != nullptr)
::gluDeleteQuadric(m_quadric);
}
void GLGizmoRotate::set_angle(double angle)
{
if (std::abs(angle - 2.0 * (double)PI) < EPSILON)
angle = 0.0;
m_angle = angle;
}
bool GLGizmoRotate::on_init()
{
m_grabbers.push_back(Grabber());
return true;
}
void GLGizmoRotate::on_start_dragging(const GLCanvas3D::Selection& selection)
{
const BoundingBoxf3& box = selection.get_bounding_box();
m_center = box.center();
m_radius = Offset + box.radius();
m_snap_coarse_in_radius = m_radius / 3.0f;
m_snap_coarse_out_radius = 2.0f * m_snap_coarse_in_radius;
m_snap_fine_in_radius = m_radius;
m_snap_fine_out_radius = m_snap_fine_in_radius + m_radius * ScaleLongTooth;
}
void GLGizmoRotate::on_update(const UpdateData& data, const GLCanvas3D::Selection& selection)
{
Vec2d mouse_pos = to_2d(mouse_position_in_local_plane(data.mouse_ray, selection));
Vec2d orig_dir = Vec2d::UnitX();
Vec2d new_dir = mouse_pos.normalized();
double theta = ::acos(clamp(-1.0, 1.0, new_dir.dot(orig_dir)));
if (cross2(orig_dir, new_dir) < 0.0)
theta = 2.0 * (double)PI - theta;
double len = mouse_pos.norm();
// snap to coarse snap region
if ((m_snap_coarse_in_radius <= len) && (len <= m_snap_coarse_out_radius))
{
double step = 2.0 * (double)PI / (double)SnapRegionsCount;
theta = step * (double)std::round(theta / step);
}
else
{
// snap to fine snap region (scale)
if ((m_snap_fine_in_radius <= len) && (len <= m_snap_fine_out_radius))
{
double step = 2.0 * (double)PI / (double)ScaleStepsCount;
theta = step * (double)std::round(theta / step);
}
}
if (theta == 2.0 * (double)PI)
theta = 0.0;
m_angle = theta;
}
void GLGizmoRotate::on_render(const GLCanvas3D::Selection& selection) const
{
if (!m_grabbers[0].enabled)
return;
const BoundingBoxf3& box = selection.get_bounding_box();
std::string axis;
switch (m_axis)
{
case X: { axis = "X"; break; }
case Y: { axis = "Y"; break; }
case Z: { axis = "Z"; break; }
}
if (!m_dragging && (m_hover_id == 0))
set_tooltip(axis);
else if (m_dragging)
set_tooltip(axis + ": " + format((float)Geometry::rad2deg(m_angle), 4) + "\u00B0");
else
{
m_center = box.center();
m_radius = Offset + box.radius();
m_snap_coarse_in_radius = m_radius / 3.0f;
m_snap_coarse_out_radius = 2.0f * m_snap_coarse_in_radius;
m_snap_fine_in_radius = m_radius;
m_snap_fine_out_radius = m_radius * (1.0f + ScaleLongTooth);
}
::glEnable(GL_DEPTH_TEST);
::glPushMatrix();
transform_to_local(selection);
::glLineWidth((m_hover_id != -1) ? 2.0f : 1.5f);
::glColor3fv((m_hover_id != -1) ? m_drag_color : m_highlight_color);
render_circle();
if (m_hover_id != -1)
{
render_scale();
render_snap_radii();
render_reference_radius();
}
::glColor3fv(m_highlight_color);
if (m_hover_id != -1)
render_angle();
render_grabber(box);
render_grabber_extension(box, false);
::glPopMatrix();
}
void GLGizmoRotate::on_render_for_picking(const GLCanvas3D::Selection& selection) const
{
::glDisable(GL_DEPTH_TEST);
::glPushMatrix();
transform_to_local(selection);
const BoundingBoxf3& box = selection.get_bounding_box();
render_grabbers_for_picking(box);
render_grabber_extension(box, true);
::glPopMatrix();
}
void GLGizmoRotate::render_circle() const
{
::glBegin(GL_LINE_LOOP);
for (unsigned int i = 0; i < ScaleStepsCount; ++i)
{
float angle = (float)i * ScaleStepRad;
float x = ::cos(angle) * m_radius;
float y = ::sin(angle) * m_radius;
float z = 0.0f;
::glVertex3f((GLfloat)x, (GLfloat)y, (GLfloat)z);
}
::glEnd();
}
void GLGizmoRotate::render_scale() const
{
float out_radius_long = m_snap_fine_out_radius;
float out_radius_short = m_radius * (1.0f + 0.5f * ScaleLongTooth);
::glBegin(GL_LINES);
for (unsigned int i = 0; i < ScaleStepsCount; ++i)
{
float angle = (float)i * ScaleStepRad;
float cosa = ::cos(angle);
float sina = ::sin(angle);
float in_x = cosa * m_radius;
float in_y = sina * m_radius;
float in_z = 0.0f;
float out_x = (i % ScaleLongEvery == 0) ? cosa * out_radius_long : cosa * out_radius_short;
float out_y = (i % ScaleLongEvery == 0) ? sina * out_radius_long : sina * out_radius_short;
float out_z = 0.0f;
::glVertex3f((GLfloat)in_x, (GLfloat)in_y, (GLfloat)in_z);
::glVertex3f((GLfloat)out_x, (GLfloat)out_y, (GLfloat)out_z);
}
::glEnd();
}
void GLGizmoRotate::render_snap_radii() const
{
float step = 2.0f * (float)PI / (float)SnapRegionsCount;
float in_radius = m_radius / 3.0f;
float out_radius = 2.0f * in_radius;
::glBegin(GL_LINES);
for (unsigned int i = 0; i < SnapRegionsCount; ++i)
{
float angle = (float)i * step;
float cosa = ::cos(angle);
float sina = ::sin(angle);
float in_x = cosa * in_radius;
float in_y = sina * in_radius;
float in_z = 0.0f;
float out_x = cosa * out_radius;
float out_y = sina * out_radius;
float out_z = 0.0f;
::glVertex3f((GLfloat)in_x, (GLfloat)in_y, (GLfloat)in_z);
::glVertex3f((GLfloat)out_x, (GLfloat)out_y, (GLfloat)out_z);
}
::glEnd();
}
void GLGizmoRotate::render_reference_radius() const
{
::glBegin(GL_LINES);
::glVertex3f(0.0f, 0.0f, 0.0f);
::glVertex3f((GLfloat)(m_radius * (1.0f + GrabberOffset)), 0.0f, 0.0f);
::glEnd();
}
void GLGizmoRotate::render_angle() const
{
float step_angle = (float)m_angle / AngleResolution;
float ex_radius = m_radius * (1.0f + GrabberOffset);
::glBegin(GL_LINE_STRIP);
for (unsigned int i = 0; i <= AngleResolution; ++i)
{
float angle = (float)i * step_angle;
float x = ::cos(angle) * ex_radius;
float y = ::sin(angle) * ex_radius;
float z = 0.0f;
::glVertex3f((GLfloat)x, (GLfloat)y, (GLfloat)z);
}
::glEnd();
}
void GLGizmoRotate::render_grabber(const BoundingBoxf3& box) const
{
double grabber_radius = (double)m_radius * (1.0 + (double)GrabberOffset);
m_grabbers[0].center = Vec3d(::cos(m_angle) * grabber_radius, ::sin(m_angle) * grabber_radius, 0.0);
m_grabbers[0].angles(2) = m_angle;
::glColor3fv((m_hover_id != -1) ? m_drag_color : m_highlight_color);
::glBegin(GL_LINES);
::glVertex3f(0.0f, 0.0f, 0.0f);
::glVertex3dv(m_grabbers[0].center.data());
::glEnd();
::memcpy((void*)m_grabbers[0].color, (const void*)m_highlight_color, 3 * sizeof(float));
render_grabbers(box);
}
void GLGizmoRotate::render_grabber_extension(const BoundingBoxf3& box, bool picking) const
{
if (m_quadric == nullptr)
return;
double size = m_dragging ? (double)m_grabbers[0].get_dragging_half_size((float)box.max_size()) : (double)m_grabbers[0].get_half_size((float)box.max_size());
float color[3];
::memcpy((void*)color, (const void*)m_grabbers[0].color, 3 * sizeof(float));
if (!picking && (m_hover_id != -1))
{
color[0] = 1.0f - color[0];
color[1] = 1.0f - color[1];
color[2] = 1.0f - color[2];
}
if (!picking)
::glEnable(GL_LIGHTING);
::glColor3fv(color);
::glPushMatrix();
::glTranslated(m_grabbers[0].center(0), m_grabbers[0].center(1), m_grabbers[0].center(2));
::glRotated(Geometry::rad2deg(m_angle), 0.0, 0.0, 1.0);
::glRotated(90.0, 1.0, 0.0, 0.0);
::glTranslated(0.0, 0.0, 2.0 * size);
::gluQuadricOrientation(m_quadric, GLU_OUTSIDE);
::gluCylinder(m_quadric, 0.75 * size, 0.0, 3.0 * size, 36, 1);
::gluQuadricOrientation(m_quadric, GLU_INSIDE);
::gluDisk(m_quadric, 0.0, 0.75 * size, 36, 1);
::glPopMatrix();
::glPushMatrix();
::glTranslated(m_grabbers[0].center(0), m_grabbers[0].center(1), m_grabbers[0].center(2));
::glRotated(Geometry::rad2deg(m_angle), 0.0, 0.0, 1.0);
::glRotated(-90.0, 1.0, 0.0, 0.0);
::glTranslated(0.0, 0.0, 2.0 * size);
::gluQuadricOrientation(m_quadric, GLU_OUTSIDE);
::gluCylinder(m_quadric, 0.75 * size, 0.0, 3.0 * size, 36, 1);
::gluQuadricOrientation(m_quadric, GLU_INSIDE);
::gluDisk(m_quadric, 0.0, 0.75 * size, 36, 1);
::glPopMatrix();
if (!picking)
::glDisable(GL_LIGHTING);
}
void GLGizmoRotate::transform_to_local(const GLCanvas3D::Selection& selection) const
{
::glTranslated(m_center(0), m_center(1), m_center(2));
if (selection.is_single_volume() || selection.is_single_modifier())
{
Transform3d orient_matrix = selection.get_volume(*selection.get_volume_idxs().begin())->get_instance_transformation().get_matrix(true, false, true, true);
::glMultMatrixd(orient_matrix.data());
}
switch (m_axis)
{
case X:
{
::glRotatef(90.0f, 0.0f, 1.0f, 0.0f);
::glRotatef(-90.0f, 0.0f, 0.0f, 1.0f);
break;
}
case Y:
{
::glRotatef(-90.0f, 0.0f, 0.0f, 1.0f);
::glRotatef(-90.0f, 0.0f, 1.0f, 0.0f);
break;
}
default:
case Z:
{
// no rotation
break;
}
}
}
Vec3d GLGizmoRotate::mouse_position_in_local_plane(const Linef3& mouse_ray, const GLCanvas3D::Selection& selection) const
{
double half_pi = 0.5 * (double)PI;
Transform3d m = Transform3d::Identity();
switch (m_axis)
{
case X:
{
m.rotate(Eigen::AngleAxisd(half_pi, Vec3d::UnitZ()));
m.rotate(Eigen::AngleAxisd(-half_pi, Vec3d::UnitY()));
break;
}
case Y:
{
m.rotate(Eigen::AngleAxisd(half_pi, Vec3d::UnitY()));
m.rotate(Eigen::AngleAxisd(half_pi, Vec3d::UnitZ()));
break;
}
default:
case Z:
{
// no rotation applied
break;
}
}
if (selection.is_single_volume() || selection.is_single_modifier())
m = m * selection.get_volume(*selection.get_volume_idxs().begin())->get_instance_transformation().get_matrix(true, false, true, true).inverse();
m.translate(-m_center);
return transform(mouse_ray, m).intersect_plane(0.0);
}
GLGizmoRotate3D::GLGizmoRotate3D(GLCanvas3D& parent)
: GLGizmoBase(parent)
{
m_gizmos.emplace_back(parent, GLGizmoRotate::X);
m_gizmos.emplace_back(parent, GLGizmoRotate::Y);
m_gizmos.emplace_back(parent, GLGizmoRotate::Z);
for (unsigned int i = 0; i < 3; ++i)
{
m_gizmos[i].set_group_id(i);
}
}
bool GLGizmoRotate3D::on_init()
{
for (GLGizmoRotate& g : m_gizmos)
{
if (!g.init())
return false;
}
for (unsigned int i = 0; i < 3; ++i)
{
m_gizmos[i].set_highlight_color(AXES_COLOR[i]);
}
std::string path = resources_dir() + "/icons/overlay/";
if (!m_textures[Off].load_from_file(path + "rotate_off.png", false))
return false;
if (!m_textures[Hover].load_from_file(path + "rotate_hover.png", false))
return false;
if (!m_textures[On].load_from_file(path + "rotate_on.png", false))
return false;
m_shortcut_key = WXK_CONTROL_R;
return true;
}
std::string GLGizmoRotate3D::on_get_name() const
{
return L("Rotate [R]");
}
void GLGizmoRotate3D::on_start_dragging(const GLCanvas3D::Selection& selection)
{
if ((0 <= m_hover_id) && (m_hover_id < 3))
m_gizmos[m_hover_id].start_dragging(selection);
}
void GLGizmoRotate3D::on_stop_dragging()
{
if ((0 <= m_hover_id) && (m_hover_id < 3))
m_gizmos[m_hover_id].stop_dragging();
}
void GLGizmoRotate3D::on_render(const GLCanvas3D::Selection& selection) const
{
::glClear(GL_DEPTH_BUFFER_BIT);
if ((m_hover_id == -1) || (m_hover_id == 0))
m_gizmos[X].render(selection);
if ((m_hover_id == -1) || (m_hover_id == 1))
m_gizmos[Y].render(selection);
if ((m_hover_id == -1) || (m_hover_id == 2))
m_gizmos[Z].render(selection);
}
#if ENABLE_IMGUI
void GLGizmoRotate3D::on_render_input_window(float x, float y, const GLCanvas3D::Selection& selection)
{
#if !DISABLE_MOVE_ROTATE_SCALE_GIZMOS_IMGUI
Vec3d rotation(Geometry::rad2deg(m_gizmos[0].get_angle()), Geometry::rad2deg(m_gizmos[1].get_angle()), Geometry::rad2deg(m_gizmos[2].get_angle()));
wxString label = _(L("Rotation (deg)"));
m_imgui->set_next_window_pos(x, y, ImGuiCond_Always);
m_imgui->set_next_window_bg_alpha(0.5f);
m_imgui->begin(label, ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse);
m_imgui->input_vec3("", rotation, 100.0f, "%.2f");
m_imgui->end();
#endif // !DISABLE_MOVE_ROTATE_SCALE_GIZMOS_IMGUI
}
#endif // ENABLE_IMGUI
const float GLGizmoScale3D::Offset = 5.0f;
GLGizmoScale3D::GLGizmoScale3D(GLCanvas3D& parent)
: GLGizmoBase(parent)
, m_scale(Vec3d::Ones())
, m_snap_step(0.05)
, m_starting_scale(Vec3d::Ones())
{
}
bool GLGizmoScale3D::on_init()
{
std::string path = resources_dir() + "/icons/overlay/";
if (!m_textures[Off].load_from_file(path + "scale_off.png", false))
return false;
if (!m_textures[Hover].load_from_file(path + "scale_hover.png", false))
return false;
if (!m_textures[On].load_from_file(path + "scale_on.png", false))
return false;
for (int i = 0; i < 10; ++i)
{
m_grabbers.push_back(Grabber());
}
double half_pi = 0.5 * (double)PI;
// x axis
m_grabbers[0].angles(1) = half_pi;
m_grabbers[1].angles(1) = half_pi;
// y axis
m_grabbers[2].angles(0) = half_pi;
m_grabbers[3].angles(0) = half_pi;
m_shortcut_key = WXK_CONTROL_S;
return true;
}
std::string GLGizmoScale3D::on_get_name() const
{
return L("Scale [S]");
}
void GLGizmoScale3D::on_start_dragging(const GLCanvas3D::Selection& selection)
{
if (m_hover_id != -1)
{
m_starting_drag_position = m_grabbers[m_hover_id].center;
m_starting_box = selection.get_bounding_box();
}
}
void GLGizmoScale3D::on_update(const UpdateData& data, const GLCanvas3D::Selection& selection)
{
if ((m_hover_id == 0) || (m_hover_id == 1))
do_scale_x(data);
else if ((m_hover_id == 2) || (m_hover_id == 3))
do_scale_y(data);
else if ((m_hover_id == 4) || (m_hover_id == 5))
do_scale_z(data);
else if (m_hover_id >= 6)
do_scale_uniform(data);
}
void GLGizmoScale3D::on_render(const GLCanvas3D::Selection& selection) const
{
bool single_instance = selection.is_single_full_instance();
bool single_volume = selection.is_single_modifier() || selection.is_single_volume();
bool single_selection = single_instance || single_volume;
Vec3f scale = 100.0f * Vec3f::Ones();
if (single_instance)
scale = 100.0f * selection.get_volume(*selection.get_volume_idxs().begin())->get_instance_scaling_factor().cast<float>();
else if (single_volume)
scale = 100.0f * selection.get_volume(*selection.get_volume_idxs().begin())->get_volume_scaling_factor().cast<float>();
if ((single_selection && ((m_hover_id == 0) || (m_hover_id == 1))) || m_grabbers[0].dragging || m_grabbers[1].dragging)
set_tooltip("X: " + format(scale(0), 4) + "%");
else if (!m_grabbers[0].dragging && !m_grabbers[1].dragging && ((m_hover_id == 0) || (m_hover_id == 1)))
set_tooltip("X");
else if ((single_selection && ((m_hover_id == 2) || (m_hover_id == 3))) || m_grabbers[2].dragging || m_grabbers[3].dragging)
set_tooltip("Y: " + format(scale(1), 4) + "%");
else if (!m_grabbers[2].dragging && !m_grabbers[3].dragging && ((m_hover_id == 2) || (m_hover_id == 3)))
set_tooltip("Y");
else if ((single_selection && ((m_hover_id == 4) || (m_hover_id == 5))) || m_grabbers[4].dragging || m_grabbers[5].dragging)
set_tooltip("Z: " + format(scale(2), 4) + "%");
else if (!m_grabbers[4].dragging && !m_grabbers[5].dragging && ((m_hover_id == 4) || (m_hover_id == 5)))
set_tooltip("Z");
else if ((single_selection && ((m_hover_id == 6) || (m_hover_id == 7) || (m_hover_id == 8) || (m_hover_id == 9)))
|| m_grabbers[6].dragging || m_grabbers[7].dragging || m_grabbers[8].dragging || m_grabbers[9].dragging)
{
std::string tooltip = "X: " + format(scale(0), 4) + "%\n";
tooltip += "Y: " + format(scale(1), 4) + "%\n";
tooltip += "Z: " + format(scale(2), 4) + "%";
set_tooltip(tooltip);
}
else if (!m_grabbers[6].dragging && !m_grabbers[7].dragging && !m_grabbers[8].dragging && !m_grabbers[9].dragging &&
((m_hover_id == 6) || (m_hover_id == 7) || (m_hover_id == 8) || (m_hover_id == 9)))
set_tooltip("X/Y/Z");
::glClear(GL_DEPTH_BUFFER_BIT);
::glEnable(GL_DEPTH_TEST);
BoundingBoxf3 box;
Transform3d transform = Transform3d::Identity();
Vec3d angles = Vec3d::Zero();
Transform3d offsets_transform = Transform3d::Identity();
Vec3d grabber_size = Vec3d::Zero();
if (single_instance)
{
// calculate bounding box in instance local reference system
const GLCanvas3D::Selection::IndicesList& idxs = selection.get_volume_idxs();
for (unsigned int idx : idxs)
{
const GLVolume* vol = selection.get_volume(idx);
box.merge(vol->bounding_box.transformed(vol->get_volume_transformation().get_matrix()));
}
// gets transform from first selected volume
const GLVolume* v = selection.get_volume(*idxs.begin());
transform = v->get_instance_transformation().get_matrix();
// gets angles from first selected volume
angles = v->get_instance_rotation();
// consider rotation+mirror only components of the transform for offsets
offsets_transform = Geometry::assemble_transform(Vec3d::Zero(), angles, Vec3d::Ones(), v->get_instance_mirror());
grabber_size = v->get_instance_transformation().get_matrix(true, true, false, true) * box.size();
}
else if (single_volume)
{
const GLVolume* v = selection.get_volume(*selection.get_volume_idxs().begin());
box = v->bounding_box;
transform = v->world_matrix();
angles = Geometry::extract_euler_angles(transform);
// consider rotation+mirror only components of the transform for offsets
offsets_transform = Geometry::assemble_transform(Vec3d::Zero(), angles, Vec3d::Ones(), v->get_instance_mirror());
grabber_size = v->get_volume_transformation().get_matrix(true, true, false, true) * box.size();
}
else
{
box = selection.get_bounding_box();
grabber_size = box.size();
}
m_box = box;
const Vec3d& center = m_box.center();
Vec3d offset_x = offsets_transform * Vec3d((double)Offset, 0.0, 0.0);
Vec3d offset_y = offsets_transform * Vec3d(0.0, (double)Offset, 0.0);
Vec3d offset_z = offsets_transform * Vec3d(0.0, 0.0, (double)Offset);
// x axis
m_grabbers[0].center = transform * Vec3d(m_box.min(0), center(1), center(2)) - offset_x;
m_grabbers[1].center = transform * Vec3d(m_box.max(0), center(1), center(2)) + offset_x;
::memcpy((void*)m_grabbers[0].color, (const void*)&AXES_COLOR[0], 3 * sizeof(float));
::memcpy((void*)m_grabbers[1].color, (const void*)&AXES_COLOR[0], 3 * sizeof(float));
// y axis
m_grabbers[2].center = transform * Vec3d(center(0), m_box.min(1), center(2)) - offset_y;
m_grabbers[3].center = transform * Vec3d(center(0), m_box.max(1), center(2)) + offset_y;
::memcpy((void*)m_grabbers[2].color, (const void*)&AXES_COLOR[1], 3 * sizeof(float));
::memcpy((void*)m_grabbers[3].color, (const void*)&AXES_COLOR[1], 3 * sizeof(float));
// z axis
m_grabbers[4].center = transform * Vec3d(center(0), center(1), m_box.min(2)) - offset_z;
m_grabbers[5].center = transform * Vec3d(center(0), center(1), m_box.max(2)) + offset_z;
::memcpy((void*)m_grabbers[4].color, (const void*)&AXES_COLOR[2], 3 * sizeof(float));
::memcpy((void*)m_grabbers[5].color, (const void*)&AXES_COLOR[2], 3 * sizeof(float));
// uniform
m_grabbers[6].center = transform * Vec3d(m_box.min(0), m_box.min(1), center(2)) - offset_x - offset_y;
m_grabbers[7].center = transform * Vec3d(m_box.max(0), m_box.min(1), center(2)) + offset_x - offset_y;
m_grabbers[8].center = transform * Vec3d(m_box.max(0), m_box.max(1), center(2)) + offset_x + offset_y;
m_grabbers[9].center = transform * Vec3d(m_box.min(0), m_box.max(1), center(2)) - offset_x + offset_y;
for (int i = 6; i < 10; ++i)
{
::memcpy((void*)m_grabbers[i].color, (const void*)m_highlight_color, 3 * sizeof(float));
}
// sets grabbers orientation
for (int i = 0; i < 10; ++i)
{
m_grabbers[i].angles = angles;
}
::glLineWidth((m_hover_id != -1) ? 2.0f : 1.5f);
float grabber_max_size = (float)std::max(grabber_size(0), std::max(grabber_size(1), grabber_size(2)));
if (m_hover_id == -1)
{
// draw connections
if (m_grabbers[0].enabled && m_grabbers[1].enabled)
{
::glColor3fv(m_grabbers[0].color);
render_grabbers_connection(0, 1);
}
if (m_grabbers[2].enabled && m_grabbers[3].enabled)
{
::glColor3fv(m_grabbers[2].color);
render_grabbers_connection(2, 3);
}
if (m_grabbers[4].enabled && m_grabbers[5].enabled)
{
::glColor3fv(m_grabbers[4].color);
render_grabbers_connection(4, 5);
}
::glColor3fv(m_base_color);
render_grabbers_connection(6, 7);
render_grabbers_connection(7, 8);
render_grabbers_connection(8, 9);
render_grabbers_connection(9, 6);
// draw grabbers
render_grabbers(grabber_max_size);
}
else if ((m_hover_id == 0) || (m_hover_id == 1))
{
// draw connection
::glColor3fv(m_grabbers[0].color);
render_grabbers_connection(0, 1);
// draw grabbers
m_grabbers[0].render(true, grabber_max_size);
m_grabbers[1].render(true, grabber_max_size);
}
else if ((m_hover_id == 2) || (m_hover_id == 3))
{
// draw connection
::glColor3fv(m_grabbers[2].color);
render_grabbers_connection(2, 3);
// draw grabbers
m_grabbers[2].render(true, grabber_max_size);
m_grabbers[3].render(true, grabber_max_size);
}
else if ((m_hover_id == 4) || (m_hover_id == 5))
{
// draw connection
::glColor3fv(m_grabbers[4].color);
render_grabbers_connection(4, 5);
// draw grabbers
m_grabbers[4].render(true, grabber_max_size);
m_grabbers[5].render(true, grabber_max_size);
}
else if (m_hover_id >= 6)
{
// draw connection
::glColor3fv(m_drag_color);
render_grabbers_connection(6, 7);
render_grabbers_connection(7, 8);
render_grabbers_connection(8, 9);
render_grabbers_connection(9, 6);
// draw grabbers
for (int i = 6; i < 10; ++i)
{
m_grabbers[i].render(true, grabber_max_size);
}
}
}
void GLGizmoScale3D::on_render_for_picking(const GLCanvas3D::Selection& selection) const
{
::glDisable(GL_DEPTH_TEST);
render_grabbers_for_picking(selection.get_bounding_box());
}
#if ENABLE_IMGUI
void GLGizmoScale3D::on_render_input_window(float x, float y, const GLCanvas3D::Selection& selection)
{
#if !DISABLE_MOVE_ROTATE_SCALE_GIZMOS_IMGUI
bool single_instance = selection.is_single_full_instance();
wxString label = _(L("Scale (%)"));
m_imgui->set_next_window_pos(x, y, ImGuiCond_Always);
m_imgui->set_next_window_bg_alpha(0.5f);
m_imgui->begin(label, ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse);
m_imgui->input_vec3("", m_scale * 100.f, 100.0f, "%.2f");
m_imgui->end();
#endif // !DISABLE_MOVE_ROTATE_SCALE_GIZMOS_IMGUI
}
#endif // ENABLE_IMGUI
void GLGizmoScale3D::render_grabbers_connection(unsigned int id_1, unsigned int id_2) const
{
unsigned int grabbers_count = (unsigned int)m_grabbers.size();
if ((id_1 < grabbers_count) && (id_2 < grabbers_count))
{
::glBegin(GL_LINES);
::glVertex3dv(m_grabbers[id_1].center.data());
::glVertex3dv(m_grabbers[id_2].center.data());
::glEnd();
}
}
void GLGizmoScale3D::do_scale_x(const UpdateData& data)
{
double ratio = calc_ratio(data);
if (ratio > 0.0)
m_scale(0) = m_starting_scale(0) * ratio;
}
void GLGizmoScale3D::do_scale_y(const UpdateData& data)
{
double ratio = calc_ratio(data);
if (ratio > 0.0)
m_scale(1) = m_starting_scale(1) * ratio;
}
void GLGizmoScale3D::do_scale_z(const UpdateData& data)
{
double ratio = calc_ratio(data);
if (ratio > 0.0)
m_scale(2) = m_starting_scale(2) * ratio;
}
void GLGizmoScale3D::do_scale_uniform(const UpdateData& data)
{
double ratio = calc_ratio(data);
if (ratio > 0.0)
m_scale = m_starting_scale * ratio;
}
double GLGizmoScale3D::calc_ratio(const UpdateData& data) const
{
double ratio = 0.0;
// vector from the center to the starting position
Vec3d starting_vec = m_starting_drag_position - m_starting_box.center();
double len_starting_vec = starting_vec.norm();
if (len_starting_vec != 0.0)
{
Vec3d mouse_dir = data.mouse_ray.unit_vector();
// finds the intersection of the mouse ray with the plane parallel to the camera viewport and passing throught the starting position
// use ray-plane intersection see i.e. https://en.wikipedia.org/wiki/Line%E2%80%93plane_intersection algebric form
// in our case plane normal and ray direction are the same (orthogonal view)
// when moving to perspective camera the negative z unit axis of the camera needs to be transformed in world space and used as plane normal
Vec3d inters = data.mouse_ray.a + (m_starting_drag_position - data.mouse_ray.a).dot(mouse_dir) / mouse_dir.squaredNorm() * mouse_dir;
// vector from the starting position to the found intersection
Vec3d inters_vec = inters - m_starting_drag_position;
// finds projection of the vector along the staring direction
double proj = inters_vec.dot(starting_vec.normalized());
ratio = (len_starting_vec + proj) / len_starting_vec;
}
if (data.shift_down)
ratio = m_snap_step * (double)std::round(ratio / m_snap_step);
return ratio;
}
const double GLGizmoMove3D::Offset = 10.0;
GLGizmoMove3D::GLGizmoMove3D(GLCanvas3D& parent)
: GLGizmoBase(parent)
, m_displacement(Vec3d::Zero())
, m_snap_step(1.0)
, m_starting_drag_position(Vec3d::Zero())
, m_starting_box_center(Vec3d::Zero())
, m_starting_box_bottom_center(Vec3d::Zero())
, m_quadric(nullptr)
{
m_quadric = ::gluNewQuadric();
if (m_quadric != nullptr)
::gluQuadricDrawStyle(m_quadric, GLU_FILL);
}
GLGizmoMove3D::~GLGizmoMove3D()
{
if (m_quadric != nullptr)
::gluDeleteQuadric(m_quadric);
}
bool GLGizmoMove3D::on_init()
{
std::string path = resources_dir() + "/icons/overlay/";
if (!m_textures[Off].load_from_file(path + "move_off.png", false))
return false;
if (!m_textures[Hover].load_from_file(path + "move_hover.png", false))
return false;
if (!m_textures[On].load_from_file(path + "move_on.png", false))
return false;
for (int i = 0; i < 3; ++i)
{
m_grabbers.push_back(Grabber());
}
m_shortcut_key = WXK_CONTROL_M;
return true;
}
std::string GLGizmoMove3D::on_get_name() const
{
return L("Move [M]");
}
void GLGizmoMove3D::on_start_dragging(const GLCanvas3D::Selection& selection)
{
if (m_hover_id != -1)
{
m_displacement = Vec3d::Zero();
const BoundingBoxf3& box = selection.get_bounding_box();
m_starting_drag_position = m_grabbers[m_hover_id].center;
m_starting_box_center = box.center();
m_starting_box_bottom_center = box.center();
m_starting_box_bottom_center(2) = box.min(2);
}
}
void GLGizmoMove3D::on_stop_dragging()
{
m_displacement = Vec3d::Zero();
}
void GLGizmoMove3D::on_update(const UpdateData& data, const GLCanvas3D::Selection& selection)
{
if (m_hover_id == 0)
m_displacement(0) = calc_projection(data);
else if (m_hover_id == 1)
m_displacement(1) = calc_projection(data);
else if (m_hover_id == 2)
m_displacement(2) = calc_projection(data);
}
void GLGizmoMove3D::on_render(const GLCanvas3D::Selection& selection) const
{
bool show_position = selection.is_single_full_instance();
const Vec3d& position = selection.get_bounding_box().center();
if ((show_position && (m_hover_id == 0)) || m_grabbers[0].dragging)
set_tooltip("X: " + format(show_position ? position(0) : m_displacement(0), 2));
else if (!m_grabbers[0].dragging && (m_hover_id == 0))
set_tooltip("X");
else if ((show_position && (m_hover_id == 1)) || m_grabbers[1].dragging)
set_tooltip("Y: " + format(show_position ? position(1) : m_displacement(1), 2));
else if (!m_grabbers[1].dragging && (m_hover_id == 1))
set_tooltip("Y");
else if ((show_position && (m_hover_id == 2)) || m_grabbers[2].dragging)
set_tooltip("Z: " + format(show_position ? position(2) : m_displacement(2), 2));
else if (!m_grabbers[2].dragging && (m_hover_id == 2))
set_tooltip("Z");
::glClear(GL_DEPTH_BUFFER_BIT);
::glEnable(GL_DEPTH_TEST);
const BoundingBoxf3& box = selection.get_bounding_box();
const Vec3d& center = box.center();
// x axis
m_grabbers[0].center = Vec3d(box.max(0) + Offset, center(1), center(2));
::memcpy((void*)m_grabbers[0].color, (const void*)&AXES_COLOR[0], 3 * sizeof(float));
// y axis
m_grabbers[1].center = Vec3d(center(0), box.max(1) + Offset, center(2));
::memcpy((void*)m_grabbers[1].color, (const void*)&AXES_COLOR[1], 3 * sizeof(float));
// z axis
m_grabbers[2].center = Vec3d(center(0), center(1), box.max(2) + Offset);
::memcpy((void*)m_grabbers[2].color, (const void*)&AXES_COLOR[2], 3 * sizeof(float));
::glLineWidth((m_hover_id != -1) ? 2.0f : 1.5f);
if (m_hover_id == -1)
{
// draw axes
for (unsigned int i = 0; i < 3; ++i)
{
if (m_grabbers[i].enabled)
{
::glColor3fv(AXES_COLOR[i]);
::glBegin(GL_LINES);
::glVertex3dv(center.data());
::glVertex3dv(m_grabbers[i].center.data());
::glEnd();
}
}
// draw grabbers
render_grabbers(box);
for (unsigned int i = 0; i < 3; ++i)
{
if (m_grabbers[i].enabled)
render_grabber_extension((Axis)i, box, false);
}
}
else
{
// draw axis
::glColor3fv(AXES_COLOR[m_hover_id]);
::glBegin(GL_LINES);
::glVertex3dv(center.data());
::glVertex3dv(m_grabbers[m_hover_id].center.data());
::glEnd();
// draw grabber
m_grabbers[m_hover_id].render(true, box.max_size());
render_grabber_extension((Axis)m_hover_id, box, false);
}
}
void GLGizmoMove3D::on_render_for_picking(const GLCanvas3D::Selection& selection) const
{
::glDisable(GL_DEPTH_TEST);
const BoundingBoxf3& box = selection.get_bounding_box();
render_grabbers_for_picking(box);
render_grabber_extension(X, box, true);
render_grabber_extension(Y, box, true);
render_grabber_extension(Z, box, true);
}
#if ENABLE_IMGUI
void GLGizmoMove3D::on_render_input_window(float x, float y, const GLCanvas3D::Selection& selection)
{
#if !DISABLE_MOVE_ROTATE_SCALE_GIZMOS_IMGUI
bool show_position = selection.is_single_full_instance();
const Vec3d& position = selection.get_bounding_box().center();
Vec3d displacement = show_position ? position : m_displacement;
wxString label = show_position ? _(L("Position (mm)")) : _(L("Displacement (mm)"));
m_imgui->set_next_window_pos(x, y, ImGuiCond_Always);
m_imgui->set_next_window_bg_alpha(0.5f);
m_imgui->begin(label, ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse);
m_imgui->input_vec3("", displacement, 100.0f, "%.2f");
m_imgui->end();
#endif // !DISABLE_MOVE_ROTATE_SCALE_GIZMOS_IMGUI
}
#endif // ENABLE_IMGUI
double GLGizmoMove3D::calc_projection(const UpdateData& data) const
{
double projection = 0.0;
Vec3d starting_vec = m_starting_drag_position - m_starting_box_center;
double len_starting_vec = starting_vec.norm();
if (len_starting_vec != 0.0)
{
Vec3d mouse_dir = data.mouse_ray.unit_vector();
// finds the intersection of the mouse ray with the plane parallel to the camera viewport and passing throught the starting position
// use ray-plane intersection see i.e. https://en.wikipedia.org/wiki/Line%E2%80%93plane_intersection algebric form
// in our case plane normal and ray direction are the same (orthogonal view)
// when moving to perspective camera the negative z unit axis of the camera needs to be transformed in world space and used as plane normal
Vec3d inters = data.mouse_ray.a + (m_starting_drag_position - data.mouse_ray.a).dot(mouse_dir) / mouse_dir.squaredNorm() * mouse_dir;
// vector from the starting position to the found intersection
Vec3d inters_vec = inters - m_starting_drag_position;
// finds projection of the vector along the staring direction
projection = inters_vec.dot(starting_vec.normalized());
}
if (data.shift_down)
projection = m_snap_step * (double)std::round(projection / m_snap_step);
return projection;
}
void GLGizmoMove3D::render_grabber_extension(Axis axis, const BoundingBoxf3& box, bool picking) const
{
if (m_quadric == nullptr)
return;
double size = m_dragging ? (double)m_grabbers[axis].get_dragging_half_size((float)box.max_size()) : (double)m_grabbers[axis].get_half_size((float)box.max_size());
float color[3];
::memcpy((void*)color, (const void*)m_grabbers[axis].color, 3 * sizeof(float));
if (!picking && (m_hover_id != -1))
{
color[0] = 1.0f - color[0];
color[1] = 1.0f - color[1];
color[2] = 1.0f - color[2];
}
if (!picking)
::glEnable(GL_LIGHTING);
::glColor3fv(color);
::glPushMatrix();
::glTranslated(m_grabbers[axis].center(0), m_grabbers[axis].center(1), m_grabbers[axis].center(2));
if (axis == X)
::glRotated(90.0, 0.0, 1.0, 0.0);
else if (axis == Y)
::glRotated(-90.0, 1.0, 0.0, 0.0);
::glTranslated(0.0, 0.0, 2.0 * size);
::gluQuadricOrientation(m_quadric, GLU_OUTSIDE);
::gluCylinder(m_quadric, 0.75 * size, 0.0, 3.0 * size, 36, 1);
::gluQuadricOrientation(m_quadric, GLU_INSIDE);
::gluDisk(m_quadric, 0.0, 0.75 * size, 36, 1);
::glPopMatrix();
if (!picking)
::glDisable(GL_LIGHTING);
}
GLGizmoFlatten::GLGizmoFlatten(GLCanvas3D& parent)
: GLGizmoBase(parent)
, m_normal(Vec3d::Zero())
, m_starting_center(Vec3d::Zero())
{
}
bool GLGizmoFlatten::on_init()
{
std::string path = resources_dir() + "/icons/overlay/";
if (!m_textures[Off].load_from_file(path + "layflat_off.png", false))
return false;
if (!m_textures[Hover].load_from_file(path + "layflat_hover.png", false))
return false;
if (!m_textures[On].load_from_file(path + "layflat_on.png", false))
return false;
m_shortcut_key = WXK_CONTROL_F;
return true;
}
std::string GLGizmoFlatten::on_get_name() const
{
return L("Place on face [F]");
}
bool GLGizmoFlatten::on_is_activable(const GLCanvas3D::Selection& selection) const
{
return selection.is_single_full_instance();
}
void GLGizmoFlatten::on_start_dragging(const GLCanvas3D::Selection& selection)
{
if (m_hover_id != -1)
{
assert(m_planes_valid);
m_normal = m_planes[m_hover_id].normal;
m_starting_center = selection.get_bounding_box().center();
}
}
void GLGizmoFlatten::on_render(const GLCanvas3D::Selection& selection) const
{
::glClear(GL_DEPTH_BUFFER_BIT);
::glEnable(GL_DEPTH_TEST);
::glEnable(GL_BLEND);
if (selection.is_single_full_instance())
{
const Transform3d& m = selection.get_volume(*selection.get_volume_idxs().begin())->get_instance_transformation().get_matrix();
::glPushMatrix();
::glMultMatrixd(m.data());
::glTranslatef(0.f, 0.f, selection.get_volume(*selection.get_volume_idxs().begin())->get_sla_shift_z());
if (this->is_plane_update_necessary())
const_cast<GLGizmoFlatten*>(this)->update_planes();
for (int i = 0; i < (int)m_planes.size(); ++i)
{
if (i == m_hover_id)
::glColor4f(0.9f, 0.9f, 0.9f, 0.75f);
else
::glColor4f(0.9f, 0.9f, 0.9f, 0.5f);
::glBegin(GL_POLYGON);
for (const Vec3d& vertex : m_planes[i].vertices)
{
::glVertex3dv(vertex.data());
}
::glEnd();
}
::glPopMatrix();
}
::glEnable(GL_CULL_FACE);
::glDisable(GL_BLEND);
}
void GLGizmoFlatten::on_render_for_picking(const GLCanvas3D::Selection& selection) const
{
::glDisable(GL_DEPTH_TEST);
::glDisable(GL_BLEND);
if (selection.is_single_full_instance())
{
const Transform3d& m = selection.get_volume(*selection.get_volume_idxs().begin())->get_instance_transformation().get_matrix();
::glPushMatrix();
::glMultMatrixd(m.data());
::glTranslatef(0.f, 0.f, selection.get_volume(*selection.get_volume_idxs().begin())->get_sla_shift_z());
if (this->is_plane_update_necessary())
const_cast<GLGizmoFlatten*>(this)->update_planes();
for (int i = 0; i < (int)m_planes.size(); ++i)
{
::glColor3f(1.0f, 1.0f, picking_color_component(i));
::glBegin(GL_POLYGON);
for (const Vec3d& vertex : m_planes[i].vertices)
{
::glVertex3dv(vertex.data());
}
::glEnd();
}
::glPopMatrix();
}
::glEnable(GL_CULL_FACE);
}
void GLGizmoFlatten::set_flattening_data(const ModelObject* model_object)
{
m_starting_center = Vec3d::Zero();
if (m_model_object != model_object) {
m_planes.clear();
m_planes_valid = false;
}
m_model_object = model_object;
}
void GLGizmoFlatten::update_planes()
{
TriangleMesh ch;
for (const ModelVolume* vol : m_model_object->volumes)
{
if (vol->type() != ModelVolume::Type::MODEL_PART)
continue;
TriangleMesh vol_ch = vol->get_convex_hull();
vol_ch.transform(vol->get_matrix());
ch.merge(vol_ch);
}
ch = ch.convex_hull_3d();
m_planes.clear();
const Transform3d& inst_matrix = m_model_object->instances.front()->get_matrix(true);
// Following constants are used for discarding too small polygons.
const float minimal_area = 5.f; // in square mm (world coordinates)
const float minimal_side = 1.f; // mm
// Now we'll go through all the facets and append Points of facets sharing the same normal.
// This part is still performed in mesh coordinate system.
const int num_of_facets = ch.stl.stats.number_of_facets;
std::vector<int> facet_queue(num_of_facets, 0);
std::vector<bool> facet_visited(num_of_facets, false);
int facet_queue_cnt = 0;
const stl_normal* normal_ptr = nullptr;
while (1) {
// Find next unvisited triangle:
int facet_idx = 0;
for (; facet_idx < num_of_facets; ++ facet_idx)
if (!facet_visited[facet_idx]) {
facet_queue[facet_queue_cnt ++] = facet_idx;
facet_visited[facet_idx] = true;
normal_ptr = &ch.stl.facet_start[facet_idx].normal;
m_planes.emplace_back();
break;
}
if (facet_idx == num_of_facets)
break; // Everything was visited already
while (facet_queue_cnt > 0) {
int facet_idx = facet_queue[-- facet_queue_cnt];
const stl_normal& this_normal = ch.stl.facet_start[facet_idx].normal;
if (std::abs(this_normal(0) - (*normal_ptr)(0)) < 0.001 && std::abs(this_normal(1) - (*normal_ptr)(1)) < 0.001 && std::abs(this_normal(2) - (*normal_ptr)(2)) < 0.001) {
stl_vertex* first_vertex = ch.stl.facet_start[facet_idx].vertex;
for (int j=0; j<3; ++j)
m_planes.back().vertices.emplace_back((double)first_vertex[j](0), (double)first_vertex[j](1), (double)first_vertex[j](2));
facet_visited[facet_idx] = true;
for (int j = 0; j < 3; ++ j) {
int neighbor_idx = ch.stl.neighbors_start[facet_idx].neighbor[j];
if (! facet_visited[neighbor_idx])
facet_queue[facet_queue_cnt ++] = neighbor_idx;
}
}
}
m_planes.back().normal = normal_ptr->cast<double>();
// Now we'll transform all the points into world coordinates, so that the areas, angles and distances
// make real sense.
m_planes.back().vertices = transform(m_planes.back().vertices, inst_matrix);
// if this is a just a very small triangle, remove it to speed up further calculations (it would be rejected later anyway):
if (m_planes.back().vertices.size() == 3 &&
((m_planes.back().vertices[0] - m_planes.back().vertices[1]).norm() < minimal_side
|| (m_planes.back().vertices[0] - m_planes.back().vertices[2]).norm() < minimal_side
|| (m_planes.back().vertices[1] - m_planes.back().vertices[2]).norm() < minimal_side))
m_planes.pop_back();
}
// Let's prepare transformation of the normal vector from mesh to instance coordinates.
Geometry::Transformation t(inst_matrix);
Vec3d scaling = t.get_scaling_factor();
t.set_scaling_factor(Vec3d(1./scaling(0), 1./scaling(1), 1./scaling(2)));
// Now we'll go through all the polygons, transform the points into xy plane to process them:
for (unsigned int polygon_id=0; polygon_id < m_planes.size(); ++polygon_id) {
Pointf3s& polygon = m_planes[polygon_id].vertices;
const Vec3d& normal = m_planes[polygon_id].normal;
// transform the normal according to the instance matrix:
Vec3d normal_transformed = t.get_matrix() * normal;
// We are going to rotate about z and y to flatten the plane
Eigen::Quaterniond q;
Transform3d m = Transform3d::Identity();
m.matrix().block(0, 0, 3, 3) = q.setFromTwoVectors(normal_transformed, Vec3d::UnitZ()).toRotationMatrix();
polygon = transform(polygon, m);
// Now to remove the inner points. We'll misuse Geometry::convex_hull for that, but since
// it works in fixed point representation, we will rescale the polygon to avoid overflows.
// And yes, it is a nasty thing to do. Whoever has time is free to refactor.
Vec3d bb_size = BoundingBoxf3(polygon).size();
float sf = std::min(1./bb_size(0), 1./bb_size(1));
Transform3d tr = Geometry::assemble_transform(Vec3d::Zero(), Vec3d::Zero(), Vec3d(sf, sf, 1.f));
polygon = transform(polygon, tr);
polygon = Slic3r::Geometry::convex_hull(polygon);
polygon = transform(polygon, tr.inverse());
// Calculate area of the polygons and discard ones that are too small
float& area = m_planes[polygon_id].area;
area = 0.f;
for (unsigned int i = 0; i < polygon.size(); i++) // Shoelace formula
area += polygon[i](0)*polygon[i + 1 < polygon.size() ? i + 1 : 0](1) - polygon[i + 1 < polygon.size() ? i + 1 : 0](0)*polygon[i](1);
area = 0.5f * std::abs(area);
bool discard = false;
if (area < minimal_area)
discard = true;
else {
// We also check the inner angles and discard polygons with angles smaller than the following threshold
const double angle_threshold = ::cos(10.0 * (double)PI / 180.0);
for (unsigned int i = 0; i < polygon.size(); ++i) {
const Vec3d& prec = polygon[(i == 0) ? polygon.size() - 1 : i - 1];
const Vec3d& curr = polygon[i];
const Vec3d& next = polygon[(i == polygon.size() - 1) ? 0 : i + 1];
if ((prec - curr).normalized().dot((next - curr).normalized()) > angle_threshold) {
discard = true;
break;
}
}
}
if (discard) {
m_planes.erase(m_planes.begin() + (polygon_id--));
continue;
}
// We will shrink the polygon a little bit so it does not touch the object edges:
Vec3d centroid = std::accumulate(polygon.begin(), polygon.end(), Vec3d(0.0, 0.0, 0.0));
centroid /= (double)polygon.size();
for (auto& vertex : polygon)
vertex = 0.9f*vertex + 0.1f*centroid;
// Polygon is now simple and convex, we'll round the corners to make them look nicer.
// The algorithm takes a vertex, calculates middles of respective sides and moves the vertex
// towards their average (controlled by 'aggressivity'). This is repeated k times.
// In next iterations, the neighbours are not always taken at the middle (to increase the
// rounding effect at the corners, where we need it most).
const unsigned int k = 10; // number of iterations
const float aggressivity = 0.2f; // agressivity
const unsigned int N = polygon.size();
std::vector<std::pair<unsigned int, unsigned int>> neighbours;
if (k != 0) {
Pointf3s points_out(2*k*N); // vector long enough to store the future vertices
for (unsigned int j=0; j<N; ++j) {
points_out[j*2*k] = polygon[j];
neighbours.push_back(std::make_pair((int)(j*2*k-k) < 0 ? (N-1)*2*k+k : j*2*k-k, j*2*k+k));
}
for (unsigned int i=0; i<k; ++i) {
// Calculate middle of each edge so that neighbours points to something useful:
for (unsigned int j=0; j<N; ++j)
if (i==0)
points_out[j*2*k+k] = 0.5f * (points_out[j*2*k] + points_out[j==N-1 ? 0 : (j+1)*2*k]);
else {
float r = 0.2+0.3/(k-1)*i; // the neighbours are not always taken in the middle
points_out[neighbours[j].first] = r*points_out[j*2*k] + (1-r) * points_out[neighbours[j].first-1];
points_out[neighbours[j].second] = r*points_out[j*2*k] + (1-r) * points_out[neighbours[j].second+1];
}
// Now we have a triangle and valid neighbours, we can do an iteration:
for (unsigned int j=0; j<N; ++j)
points_out[2*k*j] = (1-aggressivity) * points_out[2*k*j] +
aggressivity*0.5f*(points_out[neighbours[j].first] + points_out[neighbours[j].second]);
for (auto& n : neighbours) {
++n.first;
--n.second;
}
}
polygon = points_out; // replace the coarse polygon with the smooth one that we just created
}
// Raise a bit above the object surface to avoid flickering:
for (auto& b : polygon)
b(2) += 0.1f;
// Transform back to 3D (and also back to mesh coordinates)
polygon = transform(polygon, inst_matrix.inverse() * m.inverse());
}
// We'll sort the planes by area and only keep the 254 largest ones (because of the picking pass limitations):
std::sort(m_planes.rbegin(), m_planes.rend(), [](const PlaneData& a, const PlaneData& b) { return a.area < b.area; });
m_planes.resize(std::min((int)m_planes.size(), 254));
// Planes are finished - let's save what we calculated it from:
m_volumes_matrices.clear();
m_volumes_types.clear();
for (const ModelVolume* vol : m_model_object->volumes) {
m_volumes_matrices.push_back(vol->get_matrix());
m_volumes_types.push_back(vol->type());
}
m_first_instance_scale = m_model_object->instances.front()->get_scaling_factor();
m_first_instance_mirror = m_model_object->instances.front()->get_mirror();
m_planes_valid = true;
}
bool GLGizmoFlatten::is_plane_update_necessary() const
{
if (m_state != On || !m_model_object || m_model_object->instances.empty())
return false;
if (! m_planes_valid || m_model_object->volumes.size() != m_volumes_matrices.size())
return true;
// We want to recalculate when the scale changes - some planes could (dis)appear.
if (! m_model_object->instances.front()->get_scaling_factor().isApprox(m_first_instance_scale)
|| ! m_model_object->instances.front()->get_mirror().isApprox(m_first_instance_mirror))
return true;
for (unsigned int i=0; i < m_model_object->volumes.size(); ++i)
if (! m_model_object->volumes[i]->get_matrix().isApprox(m_volumes_matrices[i])
|| m_model_object->volumes[i]->type() != m_volumes_types[i])
return true;
return false;
}
Vec3d GLGizmoFlatten::get_flattening_normal() const
{
Vec3d out = m_normal;
m_normal = Vec3d::Zero();
m_starting_center = Vec3d::Zero();
return out;
}
GLGizmoSlaSupports::GLGizmoSlaSupports(GLCanvas3D& parent)
: GLGizmoBase(parent), m_starting_center(Vec3d::Zero()), m_quadric(nullptr)
{
m_quadric = ::gluNewQuadric();
if (m_quadric != nullptr)
// using GLU_FILL does not work when the instance's transformation
// contains mirroring (normals are reverted)
::gluQuadricDrawStyle(m_quadric, GLU_FILL);
}
GLGizmoSlaSupports::~GLGizmoSlaSupports()
{
if (m_quadric != nullptr)
::gluDeleteQuadric(m_quadric);
}
bool GLGizmoSlaSupports::on_init()
{
std::string path = resources_dir() + "/icons/overlay/";
if (!m_textures[Off].load_from_file(path + "sla_support_points_off.png", false))
return false;
if (!m_textures[Hover].load_from_file(path + "sla_support_points_hover.png", false))
return false;
if (!m_textures[On].load_from_file(path + "sla_support_points_on.png", false))
return false;
m_shortcut_key = WXK_CONTROL_L;
return true;
}
void GLGizmoSlaSupports::set_sla_support_data(ModelObject* model_object, const GLCanvas3D::Selection& selection)
{
m_starting_center = Vec3d::Zero();
m_old_model_object = m_model_object;
m_model_object = model_object;
if (selection.is_empty())
m_old_instance_id = -1;
m_active_instance = selection.get_instance_idx();
if ((model_object != nullptr) && selection.is_from_single_instance())
{
if (is_mesh_update_necessary())
update_mesh();
// If there are no points, let's ask the backend if it calculated some.
if (m_editing_mode_cache.empty() && m_parent.sla_print()->is_step_done(slaposSupportPoints)) {
for (const SLAPrintObject* po : m_parent.sla_print()->objects()) {
if (po->model_object()->id() == model_object->id()) {
const Eigen::MatrixXd& points = po->get_support_points();
for (unsigned int i=0; i<points.rows();++i)
m_editing_mode_cache.push_back(std::make_pair(sla::SupportPoint(po->trafo().inverse().cast<float>() * Vec3f(points(i,0), points(i,1), points(i,2)),
points(i, 3), points(i, 4)),
false));
break;
}
}
}
if (m_model_object != m_old_model_object)
m_editing_mode = false;
if (m_state == On) {
m_parent.toggle_model_objects_visibility(false);
m_parent.toggle_model_objects_visibility(true, m_model_object, m_active_instance);
}
}
}
void GLGizmoSlaSupports::on_render(const GLCanvas3D::Selection& selection) const
{
::glEnable(GL_BLEND);
::glEnable(GL_DEPTH_TEST);
render_points(selection, false);
render_selection_rectangle();
#if !ENABLE_IMGUI
render_tooltip_texture();
#endif // not ENABLE_IMGUI
::glDisable(GL_BLEND);
}
void GLGizmoSlaSupports::render_selection_rectangle() const
{
if (!m_selection_rectangle_active)
return;
::glLineWidth(1.5f);
float render_color[3] = {1.f, 0.f, 0.f};
::glColor3fv(render_color);
::glPushAttrib(GL_TRANSFORM_BIT); // remember current MatrixMode
::glMatrixMode(GL_MODELVIEW); // cache modelview matrix and set to identity
::glPushMatrix();
::glLoadIdentity();
::glMatrixMode(GL_PROJECTION); // cache projection matrix and set to identity
::glPushMatrix();
::glLoadIdentity();
::glOrtho(0.f, m_canvas_width, m_canvas_height, 0.f, -1.f, 1.f); // set projection matrix so that world coords = window coords
// render the selection rectangle (window coordinates):
::glPushAttrib(GL_ENABLE_BIT);
::glLineStipple(4, 0xAAAA);
::glEnable(GL_LINE_STIPPLE);
::glBegin(GL_LINE_LOOP);
::glVertex3f((GLfloat)m_selection_rectangle_start_corner(0), (GLfloat)m_selection_rectangle_start_corner(1), (GLfloat)0.5f);
::glVertex3f((GLfloat)m_selection_rectangle_end_corner(0), (GLfloat)m_selection_rectangle_start_corner(1), (GLfloat)0.5f);
::glVertex3f((GLfloat)m_selection_rectangle_end_corner(0), (GLfloat)m_selection_rectangle_end_corner(1), (GLfloat)0.5f);
::glVertex3f((GLfloat)m_selection_rectangle_start_corner(0), (GLfloat)m_selection_rectangle_end_corner(1), (GLfloat)0.5f);
::glEnd();
::glPopAttrib();
::glPopMatrix(); // restore former projection matrix
::glMatrixMode(GL_MODELVIEW);
::glPopMatrix(); // restore former modelview matrix
::glPopAttrib(); // restore former MatrixMode
}
void GLGizmoSlaSupports::on_render_for_picking(const GLCanvas3D::Selection& selection) const
{
::glEnable(GL_DEPTH_TEST);
render_points(selection, true);
}
void GLGizmoSlaSupports::render_points(const GLCanvas3D::Selection& selection, bool picking) const
{
if (m_quadric == nullptr)
return;
if (!selection.is_from_single_instance())
return;
const GLVolume* v = selection.get_volume(*selection.get_volume_idxs().begin());
double z_shift = v->get_sla_shift_z();
::glPushMatrix();
::glTranslated(0.0, 0.0, z_shift);
const Transform3d& m = selection.get_volume(*selection.get_volume_idxs().begin())->get_instance_transformation().get_matrix();
::glMultMatrixd(m.data());
if (!picking)
::glEnable(GL_LIGHTING);
float render_color[3];
for (int i = 0; i < (int)m_editing_mode_cache.size(); ++i)
{
const Vec3f& point_pos = m_editing_mode_cache[i].first.pos;
const bool point_selected = m_editing_mode_cache[i].second;
// first precalculate the grabber position in world coordinates, so that the grabber
// is not scaled with the object (as it would be if rendered with current gl matrix).
Eigen::Matrix<GLfloat, 4, 4, Eigen::DontAlign> glmatrix;
glGetFloatv (GL_MODELVIEW_MATRIX, glmatrix.data());
Eigen::Matrix<float, 4, 1, Eigen::DontAlign> point_pos_4d;
for (int j=0; j<3; ++j)
point_pos_4d(j) = point_pos(j);
point_pos_4d[3] = 1.f;
Eigen::Matrix<float, 4, 1, Eigen::DontAlign> grabber_world_position = glmatrix * point_pos_4d;
if (!picking && (m_hover_id == i)) // point is in hover state
{
render_color[0] = 0.f;
render_color[1] = 1.0f;
render_color[2] = 1.0f;
}
else {
if (picking) {
render_color[0] = 1.0f;
render_color[1] = 1.0f;
render_color[2] = picking_color_component(i);
}
else { // normal rendering
bool supports_new_island = m_lock_unique_islands && m_editing_mode_cache[i].first.is_new_island;
if (m_editing_mode) {
render_color[0] = point_selected ? 0.f : (supports_new_island ? 0.f : 1.f);
render_color[1] = point_selected ? 1.f : 0.f;
render_color[2] = point_selected ? 0.f : (supports_new_island ? 1.f : 0.f);
}
else
for (unsigned char i=0; i<3; ++i) render_color[i] = 0.5f;
}
}
::glColor3fv(render_color);
::glPushMatrix();
::glLoadIdentity();
::glTranslated(grabber_world_position(0), grabber_world_position(1), grabber_world_position(2) + z_shift);
::gluSphere(m_quadric, m_editing_mode_cache[i].first.head_front_radius, 64, 36);
::glPopMatrix();
}
if (!picking)
::glDisable(GL_LIGHTING);
::glPopMatrix();
}
bool GLGizmoSlaSupports::is_mesh_update_necessary() const
{
return (m_state == On) && (m_model_object != nullptr) && (m_model_object != m_old_model_object) && !m_model_object->instances.empty();
//if (m_state != On || !m_model_object || m_model_object->instances.empty() || ! m_instance_matrix.isApprox(m_source_data.matrix))
// return false;
// following should detect direct mesh changes (can be removed after the mesh is made completely immutable):
/*const float* first_vertex = m_model_object->volumes.front()->get_convex_hull().first_vertex();
Vec3d first_point((double)first_vertex[0], (double)first_vertex[1], (double)first_vertex[2]);
if (first_point != m_source_data.mesh_first_point)
return true;*/
}
void GLGizmoSlaSupports::update_mesh()
{
Eigen::MatrixXf& V = m_V;
Eigen::MatrixXi& F = m_F;
// Composite mesh of all instances in the world coordinate system.
// This mesh does not account for the possible Z up SLA offset.
TriangleMesh mesh = m_model_object->raw_mesh();
const stl_file& stl = mesh.stl;
V.resize(3 * stl.stats.number_of_facets, 3);
F.resize(stl.stats.number_of_facets, 3);
for (unsigned int i=0; i<stl.stats.number_of_facets; ++i) {
const stl_facet* facet = stl.facet_start+i;
V(3*i+0, 0) = facet->vertex[0](0); V(3*i+0, 1) = facet->vertex[0](1); V(3*i+0, 2) = facet->vertex[0](2);
V(3*i+1, 0) = facet->vertex[1](0); V(3*i+1, 1) = facet->vertex[1](1); V(3*i+1, 2) = facet->vertex[1](2);
V(3*i+2, 0) = facet->vertex[2](0); V(3*i+2, 1) = facet->vertex[2](1); V(3*i+2, 2) = facet->vertex[2](2);
F(i, 0) = 3*i+0;
F(i, 1) = 3*i+1;
F(i, 2) = 3*i+2;
}
m_AABB = igl::AABB<Eigen::MatrixXf,3>();
m_AABB.init(m_V, m_F);
// we'll now reload support points (selection might have changed):
m_editing_mode_cache.clear();
for (const sla::SupportPoint& point : m_model_object->sla_support_points)
m_editing_mode_cache.push_back(std::make_pair(point, false));
}
Vec3f GLGizmoSlaSupports::unproject_on_mesh(const Vec2d& mouse_pos)
{
// if the gizmo doesn't have the V, F structures for igl, calculate them first:
if (m_V.size() == 0)
update_mesh();
Eigen::Matrix<GLint, 4, 1, Eigen::DontAlign> viewport;
::glGetIntegerv(GL_VIEWPORT, viewport.data());
Eigen::Matrix<GLdouble, 4, 4, Eigen::DontAlign> modelview_matrix;
::glGetDoublev(GL_MODELVIEW_MATRIX, modelview_matrix.data());
Eigen::Matrix<GLdouble, 4, 4, Eigen::DontAlign> projection_matrix;
::glGetDoublev(GL_PROJECTION_MATRIX, projection_matrix.data());
Vec3d point1;
Vec3d point2;
::gluUnProject(mouse_pos(0), viewport(3)-mouse_pos(1), 0.f, modelview_matrix.data(), projection_matrix.data(), viewport.data(), &point1(0), &point1(1), &point1(2));
::gluUnProject(mouse_pos(0), viewport(3)-mouse_pos(1), 1.f, modelview_matrix.data(), projection_matrix.data(), viewport.data(), &point2(0), &point2(1), &point2(2));
igl::Hit hit;
const GLCanvas3D::Selection& selection = m_parent.get_selection();
const GLVolume* volume = selection.get_volume(*selection.get_volume_idxs().begin());
double z_offset = volume->get_sla_shift_z();
point1(2) -= z_offset;
point2(2) -= z_offset;
Transform3d inv = volume->get_instance_transformation().get_matrix().inverse();
point1 = inv * point1;
point2 = inv * point2;
if (!m_AABB.intersect_ray(m_V, m_F, point1.cast<float>(), (point2-point1).cast<float>(), hit))
throw std::invalid_argument("unproject_on_mesh(): No intersection found.");
int fid = hit.id;
Vec3f bc(1-hit.u-hit.v, hit.u, hit.v);
return bc(0) * m_V.row(m_F(fid, 0)) + bc(1) * m_V.row(m_F(fid, 1)) + bc(2)*m_V.row(m_F(fid, 2));
}
// Following function is called from GLCanvas3D to inform the gizmo about a mouse/keyboard event.
// The gizmo has an opportunity to react - if it does, it should return true so that the Canvas3D is
// aware that the event was reacted to and stops trying to make different sense of it. If the gizmo
// concludes that the event was not intended for it, it should return false.
bool GLGizmoSlaSupports::mouse_event(SLAGizmoEventType action, const Vec2d& mouse_position, bool shift_down)
{
if (!m_editing_mode)
return false;
// left down - show the selection rectangle:
if (action == SLAGizmoEventType::LeftDown && shift_down) {
if (m_hover_id == -1) {
m_selection_rectangle_active = true;
m_selection_rectangle_start_corner = mouse_position;
m_selection_rectangle_end_corner = mouse_position;
m_canvas_width = m_parent.get_canvas_size().get_width();
m_canvas_height = m_parent.get_canvas_size().get_height();
}
else
m_editing_mode_cache[m_hover_id].second = true;
return true;
}
// dragging the selection rectangle:
if (action == SLAGizmoEventType::Dragging && m_selection_rectangle_active) {
m_selection_rectangle_end_corner = mouse_position;
return true;
}
// mouse up without selection rectangle - place point on the mesh:
if (action == SLAGizmoEventType::LeftUp && !m_selection_rectangle_active && !shift_down) {
if (m_ignore_up_event) {
m_ignore_up_event = false;
return false;
}
int instance_id = m_parent.get_selection().get_instance_idx();
if (m_old_instance_id != instance_id)
{
bool something_selected = (m_old_instance_id != -1);
m_old_instance_id = instance_id;
if (something_selected)
return false;
}
if (instance_id == -1)
return false;
// Regardless of whether the user clicked the object or not, we will unselect all points:
for (unsigned int i=0; i<m_editing_mode_cache.size(); ++i)
m_editing_mode_cache[i].second = false;
Vec3f new_pos;
try {
new_pos = unproject_on_mesh(mouse_position); // this can throw - we don't want to create a new point in that case
m_editing_mode_cache.emplace_back(std::make_pair(sla::SupportPoint(new_pos, m_new_point_head_diameter/2.f, false), true));
}
catch (...) { // not clicked on object
return false; // GLCanvas3D might want to deselect the gizmo
}
return true;
}
// left up with selection rectangle - select points inside the rectangle:
if ((action == SLAGizmoEventType::LeftUp || action == SLAGizmoEventType::ShiftUp)
&& m_selection_rectangle_active) {
if (action == SLAGizmoEventType::ShiftUp)
m_ignore_up_event = true;
const Transform3d& instance_matrix = m_model_object->instances[m_active_instance]->get_transformation().get_matrix();
GLint viewport[4];
::glGetIntegerv(GL_VIEWPORT, viewport);
GLdouble modelview_matrix[16];
::glGetDoublev(GL_MODELVIEW_MATRIX, modelview_matrix);
GLdouble projection_matrix[16];
::glGetDoublev(GL_PROJECTION_MATRIX, projection_matrix);
const GLCanvas3D::Selection& selection = m_parent.get_selection();
const GLVolume* volume = selection.get_volume(*selection.get_volume_idxs().begin());
double z_offset = volume->get_sla_shift_z();
// bounding box created from the rectangle corners - will take care of order of the corners
BoundingBox rectangle(Points{Point(m_selection_rectangle_start_corner.cast<int>()), Point(m_selection_rectangle_end_corner.cast<int>())});
for (std::pair<sla::SupportPoint, bool>& point_and_selection : m_editing_mode_cache) {
const sla::SupportPoint& support_point = point_and_selection.first;
Vec3f pos = instance_matrix.cast<float>() * support_point.pos;
pos(2) += z_offset;
GLdouble out_x, out_y, out_z;
::gluProject((GLdouble)pos(0), (GLdouble)pos(1), (GLdouble)pos(2), modelview_matrix, projection_matrix, viewport, &out_x, &out_y, &out_z);
out_y = m_canvas_height - out_y;
if (rectangle.contains(Point(out_x, out_y)))
point_and_selection.second = true;
}
m_selection_rectangle_active = false;
return true;
}
if (action == SLAGizmoEventType::Delete) {
// delete key pressed
delete_selected_points();
return true;
}
if (action == SLAGizmoEventType::SelectAll) {
for (auto& point_and_selection : m_editing_mode_cache)
point_and_selection.second = true;
return true;
}
return false;
}
void GLGizmoSlaSupports::delete_selected_points()
{
if (!m_editing_mode)
return;
for (unsigned int idx=0; idx<m_editing_mode_cache.size(); ++idx) {
if (m_editing_mode_cache[idx].second && (!m_editing_mode_cache[idx].first.is_new_island || !m_lock_unique_islands))
m_editing_mode_cache.erase(m_editing_mode_cache.begin() + (idx--));
// This should trigger the support generation
// wxGetApp().plater()->reslice();
}
//m_parent.post_event(SimpleEvent(EVT_GLCANVAS_SCHEDULE_BACKGROUND_PROCESS));
}
void GLGizmoSlaSupports::on_update(const UpdateData& data, const GLCanvas3D::Selection& selection)
{
if (m_editing_mode && m_hover_id != -1 && data.mouse_pos && (!m_editing_mode_cache[m_hover_id].first.is_new_island || !m_lock_unique_islands)) {
Vec3f new_pos;
try {
new_pos = unproject_on_mesh(Vec2d((*data.mouse_pos)(0), (*data.mouse_pos)(1)));
}
catch (...) { return; }
m_editing_mode_cache[m_hover_id].first.pos = new_pos;
m_editing_mode_cache[m_hover_id].first.is_new_island = false;
// Do not update immediately, wait until the mouse is released.
// m_parent.post_event(SimpleEvent(EVT_GLCANVAS_SCHEDULE_BACKGROUND_PROCESS));
}
}
#if !ENABLE_IMGUI
void GLGizmoSlaSupports::render_tooltip_texture() const {
if (m_tooltip_texture.get_id() == 0)
if (!m_tooltip_texture.load_from_file(resources_dir() + "/icons/sla_support_points_tooltip.png", false))
return;
if (m_reset_texture.get_id() == 0)
if (!m_reset_texture.load_from_file(resources_dir() + "/icons/sla_support_points_reset.png", false))
return;
float zoom = m_parent.get_camera_zoom();
float inv_zoom = (zoom != 0.0f) ? 1.0f / zoom : 0.0f;
float gap = 30.0f * inv_zoom;
const Size& cnv_size = m_parent.get_canvas_size();
float l = gap - cnv_size.get_width()/2.f * inv_zoom;
float r = l + (float)m_tooltip_texture.get_width() * inv_zoom;
float b = gap - cnv_size.get_height()/2.f * inv_zoom;
float t = b + (float)m_tooltip_texture.get_height() * inv_zoom;
Rect reset_rect = m_parent.get_gizmo_reset_rect(m_parent, true);
::glDisable(GL_DEPTH_TEST);
::glPushMatrix();
::glLoadIdentity();
GLTexture::render_texture(m_tooltip_texture.get_id(), l, r, b, t);
GLTexture::render_texture(m_reset_texture.get_id(), reset_rect.get_left(), reset_rect.get_right(), reset_rect.get_bottom(), reset_rect.get_top());
::glPopMatrix();
::glEnable(GL_DEPTH_TEST);
}
#endif // not ENABLE_IMGUI
#if ENABLE_IMGUI
void GLGizmoSlaSupports::on_render_input_window(float x, float y, const GLCanvas3D::Selection& selection)
{
bool first_run = true; // This is a hack to redraw the button when all points are removed,
// so it is not delayed until the background process finishes.
RENDER_AGAIN:
m_imgui->set_next_window_pos(x, y, ImGuiCond_Always);
m_imgui->set_next_window_bg_alpha(0.5f);
m_imgui->begin(on_get_name(), ImGuiWindowFlags_NoMove |/* ImGuiWindowFlags_NoResize | */ImGuiWindowFlags_NoCollapse);
ImGui::PushItemWidth(100.0f);
bool force_refresh = false;
bool remove_selected = false;
bool old_editing_state = m_editing_mode;
if (m_editing_mode) {
m_imgui->text(_(L("Left mouse click - add point")));
m_imgui->text(_(L("Shift + Left (+ drag) - select point(s)")));
m_imgui->text(" "); // vertical gap
std::vector<wxString> options = {"0.2", "0.4", "0.6", "0.8", "1.0"};
std::stringstream ss;
ss << std::setprecision(1) << m_new_point_head_diameter;
wxString str = ss.str();
m_imgui->combo(_(L("Head diameter")), options, str);
float current_number = atof(str);
if (std::abs(current_number - m_new_point_head_diameter) > 0.001) {
force_refresh = true;
m_new_point_head_diameter = current_number;
for (auto& point_and_selection : m_editing_mode_cache)
if (point_and_selection.second)
point_and_selection.first.head_front_radius = current_number / 2.f;
}
bool changed = m_lock_unique_islands;
m_imgui->checkbox(_(L("Lock supports under new islands")), m_lock_unique_islands);
force_refresh |= changed != m_lock_unique_islands;
remove_selected = m_imgui->button(_(L("Remove selected points")));
m_imgui->text(" "); // vertical gap
bool apply_changes = m_imgui->button(_(L("Apply changes")));
if (apply_changes) {
m_model_object->sla_support_points.clear();
for (const std::pair<sla::SupportPoint, bool>& point_and_selection : m_editing_mode_cache)
m_model_object->sla_support_points.push_back(point_and_selection.first);
m_editing_mode = false;
force_refresh = true;
m_parent.post_event(SimpleEvent(EVT_GLCANVAS_SCHEDULE_BACKGROUND_PROCESS));
}
ImGui::SameLine();
bool discard_changes = m_imgui->button(_(L("Discard changes")));
if (discard_changes) {
m_editing_mode_cache.clear();
for (const sla::SupportPoint& point : m_model_object->sla_support_points)
m_editing_mode_cache.push_back(std::make_pair(point, false));
m_editing_mode = false;
force_refresh = true;
}
}
else {
//m_imgui->text("Some settings could");
//m_imgui->text("be exposed here...");
m_imgui->text("");
m_imgui->text("");
m_imgui->text("");
bool generate = m_imgui->button(_(L("Auto-generate points")));
if (generate) {
#if SLAGIZMO_IMGUI_MODAL
ImGui::OpenPopup(_(L("Warning")));
m_show_modal = true;
force_refresh = true;
#else
wxMessageDialog dlg(GUI::wxGetApp().plater(), _(L(
"Autogeneration will erase all currently assigned points.\n\n"
"Are you sure you want to do it?\n"
)), _(L("Warning")), wxICON_WARNING | wxYES | wxNO);
if (dlg.ShowModal() == wxID_YES) {
m_model_object->sla_support_points.clear();
m_editing_mode_cache.clear();
wxGetApp().plater()->reslice();
}
#endif
}
#if SLAGIZMO_IMGUI_MODAL
if (m_show_modal) {
if (ImGui::BeginPopupModal(_(L("Warning")), &m_show_modal/*, ImGuiWindowFlags_NoDecoration*/))
{
m_imgui->text(_(L("Autogeneration will erase all currently assigned points.")));
m_imgui->text("");
m_imgui->text(_(L("Are you sure you want to do it?")));
if (m_imgui->button(_(L("Continue"))))
{
ImGui::CloseCurrentPopup();
m_show_modal = false;
m_model_object->sla_support_points.clear();
m_editing_mode_cache.clear();
wxGetApp().plater()->reslice();
}
ImGui::SameLine();
if (m_imgui->button(_(L("Cancel")))) {
ImGui::CloseCurrentPopup();
m_show_modal = false;
}
ImGui::EndPopup();
}
if (!m_show_modal)
force_refresh = true;
}
#endif
ImGui::SameLine();
bool editing_clicked = m_imgui->button("Editing");
if (editing_clicked) {
m_editing_mode_cache.clear();
for (const sla::SupportPoint& point : m_model_object->sla_support_points)
m_editing_mode_cache.push_back(std::make_pair(point, false));
m_editing_mode = true;
}
}
m_imgui->end();
if (m_editing_mode != old_editing_state) { // user just toggled between editing/non-editing mode
m_parent.toggle_sla_auxiliaries_visibility(!m_editing_mode);
force_refresh = true;
}
if (remove_selected) {
force_refresh = false;
m_parent.reload_scene(true);
delete_selected_points();
if (first_run) {
first_run = false;
goto RENDER_AGAIN;
}
}
if (force_refresh)
m_parent.reload_scene(true);
}
#endif // ENABLE_IMGUI
bool GLGizmoSlaSupports::on_is_activable(const GLCanvas3D::Selection& selection) const
{
return (wxGetApp().preset_bundle->printers.get_edited_preset().printer_technology() == ptSLA)
&& selection.is_from_single_instance();
}
bool GLGizmoSlaSupports::on_is_selectable() const
{
return (wxGetApp().preset_bundle->printers.get_edited_preset().printer_technology() == ptSLA);
}
std::string GLGizmoSlaSupports::on_get_name() const
{
return L("SLA Support Points [L]");
}
void GLGizmoSlaSupports::on_set_state()
{
if (m_state == On) {
if (is_mesh_update_necessary())
update_mesh();
m_parent.toggle_model_objects_visibility(false);
if (m_model_object)
m_parent.toggle_model_objects_visibility(true, m_model_object, m_active_instance);
}
if (m_state == Off) {
m_parent.toggle_model_objects_visibility(true);
m_editing_mode = false;
#if SLAGIZMO_IMGUI_MODAL
if (m_show_modal) {
m_show_modal = false;
on_render_input_window(0,0,m_parent.get_selection()); // this is necessary to allow ImGui to terminate the modal dialog correctly
}
#endif
}
}
void GLGizmoSlaSupports::on_start_dragging(const GLCanvas3D::Selection& selection)
{
if (m_hover_id != -1)
for (unsigned int i=0;i<m_editing_mode_cache.size();++i)
m_editing_mode_cache[i].second = ((int)i == m_hover_id);
}
// GLGizmoCut
class GLGizmoCutPanel : public wxPanel
{
public:
GLGizmoCutPanel(wxWindow *parent);
void display(bool display);
private:
bool m_active;
wxCheckBox *m_cb_rotate;
wxButton *m_btn_cut;
wxButton *m_btn_cancel;
};
GLGizmoCutPanel::GLGizmoCutPanel(wxWindow *parent)
: wxPanel(parent)
, m_active(false)
, m_cb_rotate(new wxCheckBox(this, wxID_ANY, _(L("Rotate lower part upwards"))))
, m_btn_cut(new wxButton(this, wxID_OK, _(L("Perform cut"))))
, m_btn_cancel(new wxButton(this, wxID_CANCEL, _(L("Cancel"))))
{
enum { MARGIN = 5 };
auto *sizer = new wxBoxSizer(wxHORIZONTAL);
auto *label = new wxStaticText(this, wxID_ANY, _(L("Cut object:")));
sizer->Add(label, 0, wxALL | wxALIGN_CENTER, MARGIN);
sizer->Add(m_cb_rotate, 0, wxALL | wxALIGN_CENTER, MARGIN);
sizer->AddStretchSpacer();
sizer->Add(m_btn_cut, 0, wxALL | wxALIGN_CENTER, MARGIN);
sizer->Add(m_btn_cancel, 0, wxALL | wxALIGN_CENTER, MARGIN);
SetSizer(sizer);
}
void GLGizmoCutPanel::display(bool display)
{
Show(display);
GetParent()->Layout();
}
const double GLGizmoCut::Offset = 10.0;
const double GLGizmoCut::Margin = 20.0;
const std::array<float, 3> GLGizmoCut::GrabberColor = { 1.0, 0.5, 0.0 };
GLGizmoCut::GLGizmoCut(GLCanvas3D& parent)
: GLGizmoBase(parent)
, m_cut_z(0.0)
, m_max_z(0.0)
#if !ENABLE_IMGUI
, m_panel(nullptr)
#endif // not ENABLE_IMGUI
, m_keep_upper(true)
, m_keep_lower(true)
, m_rotate_lower(false)
{}
#if !ENABLE_IMGUI
void GLGizmoCut::create_external_gizmo_widgets(wxWindow *parent)
{
wxASSERT(m_panel == nullptr);
m_panel = new GLGizmoCutPanel(parent);
parent->GetSizer()->Add(m_panel, 0, wxEXPAND);
parent->Layout();
parent->Fit();
auto prev_heigh = parent->GetMinSize().GetHeight();
parent->SetMinSize(wxSize(-1, std::max(prev_heigh, m_panel->GetSize().GetHeight())));
m_panel->Hide();
m_panel->Bind(wxEVT_BUTTON, [this](wxCommandEvent&) {
perform_cut(m_parent.get_selection());
}, wxID_OK);
}
#endif // not ENABLE_IMGUI
bool GLGizmoCut::on_init()
{
// TODO: icon
std::string path = resources_dir() + "/icons/overlay/";
if (!m_textures[Off].load_from_file(path + "cut_off.png", false)) {
return false;
}
if (!m_textures[Hover].load_from_file(path + "cut_hover.png", false)) {
return false;
}
if (!m_textures[On].load_from_file(path + "cut_on.png", false)) {
return false;
}
m_grabbers.emplace_back();
m_shortcut_key = WXK_CONTROL_C;
return true;
}
std::string GLGizmoCut::on_get_name() const
{
return L("Cut [C]");
}
void GLGizmoCut::on_set_state()
{
// Reset m_cut_z on gizmo activation
if (get_state() == On) {
m_cut_z = m_parent.get_selection().get_bounding_box().size()(2) / 2.0;
}
#if !ENABLE_IMGUI
// Display or hide the extra panel
if (m_panel != nullptr) {
m_panel->display(get_state() == On);
}
#endif // not ENABLE_IMGUI
}
bool GLGizmoCut::on_is_activable(const GLCanvas3D::Selection& selection) const
{
return selection.is_single_full_instance() && !selection.is_wipe_tower();
}
void GLGizmoCut::on_start_dragging(const GLCanvas3D::Selection& selection)
{
if (m_hover_id == -1) { return; }
const BoundingBoxf3& box = selection.get_bounding_box();
m_start_z = m_cut_z;
update_max_z(selection);
m_drag_pos = m_grabbers[m_hover_id].center;
m_drag_center = box.center();
m_drag_center(2) = m_cut_z;
}
void GLGizmoCut::on_update(const UpdateData& data, const GLCanvas3D::Selection& selection)
{
if (m_hover_id != -1) {
set_cut_z(m_start_z + calc_projection(data.mouse_ray));
}
}
void GLGizmoCut::on_render(const GLCanvas3D::Selection& selection) const
{
if (m_grabbers[0].dragging) {
set_tooltip("Z: " + format(m_cut_z, 2));
}
update_max_z(selection);
const BoundingBoxf3& box = selection.get_bounding_box();
Vec3d plane_center = box.center();
plane_center(2) = m_cut_z;
const float min_x = box.min(0) - Margin;
const float max_x = box.max(0) + Margin;
const float min_y = box.min(1) - Margin;
const float max_y = box.max(1) + Margin;
::glEnable(GL_DEPTH_TEST);
::glDisable(GL_CULL_FACE);
::glEnable(GL_BLEND);
::glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// Draw the cutting plane
::glBegin(GL_QUADS);
::glColor4f(0.8f, 0.8f, 0.8f, 0.5f);
::glVertex3f(min_x, min_y, plane_center(2));
::glVertex3f(max_x, min_y, plane_center(2));
::glVertex3f(max_x, max_y, plane_center(2));
::glVertex3f(min_x, max_y, plane_center(2));
::glEnd();
::glEnable(GL_CULL_FACE);
::glDisable(GL_BLEND);
// TODO: draw cut part contour?
// Draw the grabber and the connecting line
m_grabbers[0].center = plane_center;
m_grabbers[0].center(2) = plane_center(2) + Offset;
::glDisable(GL_DEPTH_TEST);
::glLineWidth(m_hover_id != -1 ? 2.0f : 1.5f);
::glColor3f(1.0, 1.0, 0.0);
::glBegin(GL_LINES);
::glVertex3dv(plane_center.data());
::glVertex3dv(m_grabbers[0].center.data());
::glEnd();
std::copy(std::begin(GrabberColor), std::end(GrabberColor), m_grabbers[0].color);
m_grabbers[0].render(m_hover_id == 0, box.max_size());
}
void GLGizmoCut::on_render_for_picking(const GLCanvas3D::Selection& selection) const
{
::glDisable(GL_DEPTH_TEST);
render_grabbers_for_picking(selection.get_bounding_box());
}
#if ENABLE_IMGUI
void GLGizmoCut::on_render_input_window(float x, float y, const GLCanvas3D::Selection& selection)
{
m_imgui->set_next_window_pos(x, y, ImGuiCond_Always);
m_imgui->set_next_window_bg_alpha(0.5f);
m_imgui->begin(_(L("Cut")), ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse);
ImGui::PushItemWidth(100.0f);
bool _value_changed = ImGui::InputDouble("Z", &m_cut_z, 0.0f, 0.0f, "%.2f");
m_imgui->checkbox(_(L("Keep upper part")), m_keep_upper);
m_imgui->checkbox(_(L("Keep lower part")), m_keep_lower);
m_imgui->checkbox(_(L("Rotate lower part upwards")), m_rotate_lower);
m_imgui->disabled_begin(!m_keep_upper && !m_keep_lower);
const bool cut_clicked = m_imgui->button(_(L("Perform cut")));
m_imgui->disabled_end();
m_imgui->end();
if (cut_clicked && (m_keep_upper || m_keep_lower)) {
perform_cut(selection);
}
}
#endif // ENABLE_IMGUI
void GLGizmoCut::update_max_z(const GLCanvas3D::Selection& selection) const
{
m_max_z = selection.get_bounding_box().size()(2);
set_cut_z(m_cut_z);
}
void GLGizmoCut::set_cut_z(double cut_z) const
{
// Clamp the plane to the object's bounding box
m_cut_z = std::max(0.0, std::min(m_max_z, cut_z));
}
void GLGizmoCut::perform_cut(const GLCanvas3D::Selection& selection)
{
const auto instance_idx = selection.get_instance_idx();
const auto object_idx = selection.get_object_idx();
wxCHECK_RET(instance_idx >= 0 && object_idx >= 0, "GLGizmoCut: Invalid object selection");
wxGetApp().plater()->cut(object_idx, instance_idx, m_cut_z, m_keep_upper, m_keep_lower, m_rotate_lower);
}
double GLGizmoCut::calc_projection(const Linef3& mouse_ray) const
{
double projection = 0.0;
const Vec3d starting_vec = m_drag_pos - m_drag_center;
const double len_starting_vec = starting_vec.norm();
if (len_starting_vec != 0.0)
{
Vec3d mouse_dir = mouse_ray.unit_vector();
// finds the intersection of the mouse ray with the plane parallel to the camera viewport and passing throught the starting position
// use ray-plane intersection see i.e. https://en.wikipedia.org/wiki/Line%E2%80%93plane_intersection algebric form
// in our case plane normal and ray direction are the same (orthogonal view)
// when moving to perspective camera the negative z unit axis of the camera needs to be transformed in world space and used as plane normal
Vec3d inters = mouse_ray.a + (m_drag_pos - mouse_ray.a).dot(mouse_dir) / mouse_dir.squaredNorm() * mouse_dir;
// vector from the starting position to the found intersection
Vec3d inters_vec = inters - m_drag_pos;
// finds projection of the vector along the staring direction
projection = inters_vec.dot(starting_vec.normalized());
}
return projection;
}
} // namespace GUI
} // namespace Slic3r
Reference in New Issue View Git Blame Copy Permalink