578 lines
21 KiB
C++
578 lines
21 KiB
C++
#ifndef slic3r_SLAPrint_hpp_
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#define slic3r_SLAPrint_hpp_
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#include <cstdint>
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#include <mutex>
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#include "PrintBase.hpp"
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#include "SLA/RasterBase.hpp"
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#include "SLA/SupportTree.hpp"
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#include "Point.hpp"
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#include "MTUtils.hpp"
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#include "Zipper.hpp"
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namespace Slic3r {
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enum SLAPrintStep : unsigned int {
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slapsMergeSlicesAndEval,
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slapsRasterize,
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slapsCount
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};
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enum SLAPrintObjectStep : unsigned int {
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slaposHollowing,
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slaposDrillHoles,
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slaposObjectSlice,
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slaposSupportPoints,
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slaposSupportTree,
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slaposPad,
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slaposSliceSupports,
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slaposCount
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};
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class SLAPrint;
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class GLCanvas;
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using _SLAPrintObjectBase =
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PrintObjectBaseWithState<SLAPrint, SLAPrintObjectStep, slaposCount>;
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// Layers according to quantized height levels. This will be consumed by
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// the printer (rasterizer) in the SLAPrint class.
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// using coord_t = int64_t;
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enum SliceOrigin { soSupport, soModel };
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class SLAPrintObject : public _SLAPrintObjectBase
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{
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private: // Prevents erroneous use by other classes.
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using Inherited = _SLAPrintObjectBase;
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public:
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// I refuse to grantee copying (Tamas)
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SLAPrintObject(const SLAPrintObject&) = delete;
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SLAPrintObject& operator=(const SLAPrintObject&) = delete;
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const SLAPrintObjectConfig& config() const { return m_config; }
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const Transform3d& trafo() const { return m_trafo; }
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bool is_left_handed() const { return m_left_handed; }
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struct Instance {
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Instance(ObjectID inst_id, const Point &shft, float rot) : instance_id(inst_id), shift(shft), rotation(rot) {}
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bool operator==(const Instance &rhs) const { return this->instance_id == rhs.instance_id && this->shift == rhs.shift && this->rotation == rhs.rotation; }
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// ID of the corresponding ModelInstance.
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ObjectID instance_id;
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// Slic3r::Point objects in scaled G-code coordinates
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Point shift;
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// Rotation along the Z axis, in radians.
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float rotation;
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};
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const std::vector<Instance>& instances() const { return m_instances; }
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bool has_mesh(SLAPrintObjectStep step) const;
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TriangleMesh get_mesh(SLAPrintObjectStep step) const;
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// Get a support mesh centered around origin in XY, and with zero rotation around Z applied.
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// Support mesh is only valid if this->is_step_done(slaposSupportTree) is true.
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const TriangleMesh& support_mesh() const;
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// Get a pad mesh centered around origin in XY, and with zero rotation around Z applied.
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// Support mesh is only valid if this->is_step_done(slaposPad) is true.
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const TriangleMesh& pad_mesh() const;
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// Ready after this->is_step_done(slaposDrillHoles) is true
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const TriangleMesh& hollowed_interior_mesh() const;
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// Get the mesh that is going to be printed with all the modifications
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// like hollowing and drilled holes.
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const TriangleMesh & get_mesh_to_print() const {
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return (m_hollowing_data && is_step_done(slaposDrillHoles)) ? m_hollowing_data->hollow_mesh_with_holes_trimmed : transformed_mesh();
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}
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const TriangleMesh & get_mesh_to_slice() const {
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return (m_hollowing_data && is_step_done(slaposDrillHoles)) ? m_hollowing_data->hollow_mesh_with_holes : transformed_mesh();
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}
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// This will return the transformed mesh which is cached
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const TriangleMesh& transformed_mesh() const;
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sla::SupportPoints transformed_support_points() const;
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sla::DrainHoles transformed_drainhole_points() const;
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// Get the needed Z elevation for the model geometry if supports should be
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// displayed. This Z offset should also be applied to the support
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// geometries. Note that this is not the same as the value stored in config
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// as the pad height also needs to be considered.
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double get_elevation() const;
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// This method returns the needed elevation according to the processing
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// status. If the supports are not ready, it is zero, if they are and the
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// pad is not, then without the pad, otherwise the full value is returned.
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double get_current_elevation() const;
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// This method returns the support points of this SLAPrintObject.
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const std::vector<sla::SupportPoint>& get_support_points() const;
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// The public Slice record structure. It corresponds to one printable layer.
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class SliceRecord {
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public:
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// this will be the max limit of size_t
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static const size_t NONE = size_t(-1);
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static const SliceRecord EMPTY;
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private:
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coord_t m_print_z = 0; // Top of the layer
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float m_slice_z = 0.f; // Exact level of the slice
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float m_height = 0.f; // Height of the sliced layer
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size_t m_model_slices_idx = NONE;
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size_t m_support_slices_idx = NONE;
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const SLAPrintObject *m_po = nullptr;
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public:
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SliceRecord(coord_t key, float slicez, float height):
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m_print_z(key), m_slice_z(slicez), m_height(height) {}
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// The key will be the integer height level of the top of the layer.
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coord_t print_level() const { return m_print_z; }
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// Returns the exact floating point Z coordinate of the slice
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float slice_level() const { return m_slice_z; }
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// Returns the current layer height
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float layer_height() const { return m_height; }
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bool is_valid() const { return m_po && ! std::isnan(m_slice_z); }
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const SLAPrintObject* print_obj() const { return m_po; }
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// Methods for setting the indices into the slice vectors.
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void set_model_slice_idx(const SLAPrintObject &po, size_t id) {
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m_po = &po; m_model_slices_idx = id;
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}
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void set_support_slice_idx(const SLAPrintObject& po, size_t id) {
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m_po = &po; m_support_slices_idx = id;
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}
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const ExPolygons& get_slice(SliceOrigin o) const;
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size_t get_slice_idx(SliceOrigin o) const
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{
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return o == soModel ? m_model_slices_idx : m_support_slices_idx;
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}
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};
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private:
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template<class T> inline static T level(const SliceRecord &sr)
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{
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static_assert(std::is_arithmetic<T>::value, "Arithmetic only!");
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return std::is_integral<T>::value ? T(sr.print_level())
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: T(sr.slice_level());
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}
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template<class T> inline static SliceRecord create_slice_record(T val)
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{
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static_assert(std::is_arithmetic<T>::value, "Arithmetic only!");
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return std::is_integral<T>::value
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? SliceRecord{coord_t(val), 0.f, 0.f}
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: SliceRecord{0, float(val), 0.f};
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}
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// This is a template method for searching the slice index either by
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// an integer key: print_level or a floating point key: slice_level.
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// The eps parameter gives the max deviation in + or - direction.
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//
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// This method can be used in const or non-const contexts as well.
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template<class Container, class T>
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static auto closest_slice_record(
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Container& cont,
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T lvl,
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T eps = std::numeric_limits<T>::max()) -> decltype (cont.begin())
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{
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if(cont.empty()) return cont.end();
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if(cont.size() == 1 && std::abs(level<T>(cont.front()) - lvl) > eps)
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return cont.end();
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SliceRecord query = create_slice_record(lvl);
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auto it = std::lower_bound(cont.begin(), cont.end(), query,
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[](const SliceRecord& r1,
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const SliceRecord& r2)
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{
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return level<T>(r1) < level<T>(r2);
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});
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if(it == cont.end()) return it;
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T diff = std::abs(level<T>(*it) - lvl);
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if(it != cont.begin()) {
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auto it_prev = std::prev(it);
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T diff_prev = std::abs(level<T>(*it_prev) - lvl);
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if(diff_prev < diff) { diff = diff_prev; it = it_prev; }
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}
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if(diff > eps) it = cont.end();
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return it;
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}
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const std::vector<ExPolygons>& get_model_slices() const { return m_model_slices; }
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const std::vector<ExPolygons>& get_support_slices() const;
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public:
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// /////////////////////////////////////////////////////////////////////////
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//
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// These methods should be callable on the client side (e.g. UI thread)
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// when the appropriate steps slaposObjectSlice and slaposSliceSupports
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// are ready. All the print objects are processed before slapsRasterize so
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// it is safe to call them during and/or after slapsRasterize.
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//
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// /////////////////////////////////////////////////////////////////////////
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// Retrieve the slice index.
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const std::vector<SliceRecord>& get_slice_index() const {
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return m_slice_index;
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}
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// Search slice index for the closest slice to given print_level.
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// max_epsilon gives the allowable deviation of the returned slice record's
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// level.
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const SliceRecord& closest_slice_to_print_level(
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coord_t print_level,
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coord_t max_epsilon = std::numeric_limits<coord_t>::max()) const
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{
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auto it = closest_slice_record(m_slice_index, print_level, max_epsilon);
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return it == m_slice_index.end() ? SliceRecord::EMPTY : *it;
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}
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// Search slice index for the closest slice to given slice_level.
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// max_epsilon gives the allowable deviation of the returned slice record's
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// level. Use SliceRecord::is_valid() to check the result.
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const SliceRecord& closest_slice_to_slice_level(
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float slice_level,
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float max_epsilon = std::numeric_limits<float>::max()) const
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{
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auto it = closest_slice_record(m_slice_index, slice_level, max_epsilon);
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return it == m_slice_index.end() ? SliceRecord::EMPTY : *it;
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}
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protected:
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// to be called from SLAPrint only.
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friend class SLAPrint;
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SLAPrintObject(SLAPrint* print, ModelObject* model_object);
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~SLAPrintObject();
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void config_apply(const ConfigBase &other, bool ignore_nonexistent = false) { m_config.apply(other, ignore_nonexistent); }
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void config_apply_only(const ConfigBase &other, const t_config_option_keys &keys, bool ignore_nonexistent = false)
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{ this->m_config.apply_only(other, keys, ignore_nonexistent); }
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void set_trafo(const Transform3d& trafo, bool left_handed) {
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m_transformed_rmesh.invalidate([this, &trafo, left_handed](){ m_trafo = trafo; m_left_handed = left_handed; });
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}
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template<class InstVec> inline void set_instances(InstVec&& instances) { m_instances = std::forward<InstVec>(instances); }
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// Invalidates the step, and its depending steps in SLAPrintObject and SLAPrint.
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bool invalidate_step(SLAPrintObjectStep step);
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bool invalidate_all_steps();
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// Invalidate steps based on a set of parameters changed.
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bool invalidate_state_by_config_options(const std::vector<t_config_option_key> &opt_keys);
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// Which steps have to be performed. Implicitly: all
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// to be accessible from SLAPrint
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std::vector<bool> m_stepmask;
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private:
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// Object specific configuration, pulled from the configuration layer.
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SLAPrintObjectConfig m_config;
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// Translation in Z + Rotation by Y and Z + Scaling / Mirroring.
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Transform3d m_trafo = Transform3d::Identity();
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// m_trafo is left handed -> 3x3 affine transformation has negative determinant.
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bool m_left_handed = false;
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std::vector<Instance> m_instances;
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// Individual 2d slice polygons from lower z to higher z levels
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std::vector<ExPolygons> m_model_slices;
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// Exact (float) height levels mapped to the slices. Each record contains
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// the index to the model and the support slice vectors.
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std::vector<SliceRecord> m_slice_index;
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std::vector<float> m_model_height_levels;
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// Caching the transformed (m_trafo) raw mesh of the object
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mutable CachedObject<TriangleMesh> m_transformed_rmesh;
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class SupportData : public sla::SupportableMesh
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{
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public:
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sla::SupportTree::UPtr support_tree_ptr; // the supports
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std::vector<ExPolygons> support_slices; // sliced supports
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inline SupportData(const TriangleMesh &t)
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: sla::SupportableMesh{t, {}, {}}
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{}
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sla::SupportTree::UPtr &create_support_tree(const sla::JobController &ctl)
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{
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support_tree_ptr = sla::SupportTree::create(*this, ctl);
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return support_tree_ptr;
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}
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};
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std::unique_ptr<SupportData> m_supportdata;
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class HollowingData
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{
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public:
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sla::InteriorPtr interior;
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mutable TriangleMesh hollow_mesh_with_holes; // caching the complete hollowed mesh
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mutable TriangleMesh hollow_mesh_with_holes_trimmed;
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};
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std::unique_ptr<HollowingData> m_hollowing_data;
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};
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using PrintObjects = std::vector<SLAPrintObject*>;
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using SliceRecord = SLAPrintObject::SliceRecord;
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class TriangleMesh;
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struct SLAPrintStatistics
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{
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SLAPrintStatistics() { clear(); }
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double estimated_print_time;
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double objects_used_material;
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double support_used_material;
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size_t slow_layers_count;
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size_t fast_layers_count;
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double total_cost;
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double total_weight;
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std::vector<double> layers_times;
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// Config with the filled in print statistics.
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DynamicConfig config() const;
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// Config with the statistics keys populated with placeholder strings.
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static DynamicConfig placeholders();
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// Replace the print statistics placeholders in the path.
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std::string finalize_output_path(const std::string &path_in) const;
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void clear() {
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estimated_print_time = 0.;
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objects_used_material = 0.;
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support_used_material = 0.;
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slow_layers_count = 0;
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fast_layers_count = 0;
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total_cost = 0.;
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total_weight = 0.;
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layers_times.clear();
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}
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};
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class SLAPrinter {
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protected:
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std::vector<sla::EncodedRaster> m_layers;
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virtual uqptr<sla::RasterBase> create_raster() const = 0;
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virtual sla::RasterEncoder get_encoder() const = 0;
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public:
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virtual ~SLAPrinter() = default;
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virtual void apply(const SLAPrinterConfig &cfg) = 0;
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// Fn have to be thread safe: void(sla::RasterBase& raster, size_t lyrid);
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template<class Fn, class CancelFn, class EP = ExecutionTBB>
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void draw_layers(
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size_t layer_num,
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Fn && drawfn,
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CancelFn cancelfn = []() { return false; },
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const EP & ep = {})
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{
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m_layers.resize(layer_num);
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execution::for_each(
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ep, size_t(0), m_layers.size(),
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[this, &drawfn, &cancelfn](size_t idx) {
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if (cancelfn()) return;
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sla::EncodedRaster &enc = m_layers[idx];
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auto rst = create_raster();
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drawfn(*rst, idx);
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enc = rst->encode(get_encoder());
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},
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execution::max_concurrency(ep));
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}
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};
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/**
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* @brief This class is the high level FSM for the SLA printing process.
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*
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* It should support the background processing framework and contain the
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* metadata for the support geometries and their slicing. It should also
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* dispatch the SLA printing configuration values to the appropriate calculation
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* steps.
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*/
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class SLAPrint : public PrintBaseWithState<SLAPrintStep, slapsCount>
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{
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private: // Prevents erroneous use by other classes.
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typedef PrintBaseWithState<SLAPrintStep, slapsCount> Inherited;
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class Steps; // See SLAPrintSteps.cpp
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public:
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SLAPrint(): m_stepmask(slapsCount, true) {}
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virtual ~SLAPrint() override { this->clear(); }
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PrinterTechnology technology() const noexcept override { return ptSLA; }
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void clear() override;
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bool empty() const override { return m_objects.empty(); }
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// List of existing PrintObject IDs, to remove notifications for non-existent IDs.
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std::vector<ObjectID> print_object_ids() const override;
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ApplyStatus apply(const Model &model, DynamicPrintConfig config) override;
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void set_task(const TaskParams ¶ms) override;
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void process() override;
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void finalize() override;
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// Returns true if an object step is done on all objects and there's at least one object.
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bool is_step_done(SLAPrintObjectStep step) const;
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// Returns true if the last step was finished with success.
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bool finished() const override { return this->is_step_done(slaposSliceSupports) && this->Inherited::is_step_done(slapsRasterize); }
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const PrintObjects& objects() const { return m_objects; }
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// PrintObject by its ObjectID, to be used to uniquely bind slicing warnings to their source PrintObjects
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// in the notification center.
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const SLAPrintObject* get_object(ObjectID object_id) const {
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auto it = std::find_if(m_objects.begin(), m_objects.end(),
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[object_id](const SLAPrintObject *obj) { return obj->id() == object_id; });
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return (it == m_objects.end()) ? nullptr : *it;
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}
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const SLAPrintConfig& print_config() const { return m_print_config; }
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const SLAPrinterConfig& printer_config() const { return m_printer_config; }
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const SLAMaterialConfig& material_config() const { return m_material_config; }
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const SLAPrintObjectConfig& default_object_config() const { return m_default_object_config; }
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// Extracted value from the configuration objects
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Vec3d relative_correction() const;
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// Return sla tansformation for a given model_object
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Transform3d sla_trafo(const ModelObject &model_object) const;
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std::string output_filename(const std::string &filename_base = std::string()) const override;
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const SLAPrintStatistics& print_statistics() const { return m_print_statistics; }
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std::string validate(std::string* warning = nullptr) const override;
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// An aggregation of SliceRecord-s from all the print objects for each
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// occupied layer. Slice record levels dont have to match exactly.
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// They are unified if the level difference is within +/- SCALED_EPSILON
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class PrintLayer {
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coord_t m_level;
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// The collection of slice records for the current level.
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std::vector<std::reference_wrapper<const SliceRecord>> m_slices;
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ExPolygons m_transformed_slices;
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template<class Container> void transformed_slices(Container&& c)
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{
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m_transformed_slices = std::forward<Container>(c);
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}
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friend class SLAPrint::Steps;
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public:
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explicit PrintLayer(coord_t lvl) : m_level(lvl) {}
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// for being sorted in their container (see m_printer_input)
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bool operator<(const PrintLayer& other) const {
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return m_level < other.m_level;
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}
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void add(const SliceRecord& sr) { m_slices.emplace_back(sr); }
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coord_t level() const { return m_level; }
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auto slices() const -> const decltype (m_slices)& { return m_slices; }
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const ExPolygons & transformed_slices() const {
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return m_transformed_slices;
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}
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};
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// The aggregated and leveled print records from various objects.
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// TODO: use this structure for the preview in the future.
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const std::vector<PrintLayer>& print_layers() const { return m_printer_input; }
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void set_printer(SLAPrinter *archiver);
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private:
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// Implement same logic as in SLAPrintObject
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bool invalidate_step(SLAPrintStep st);
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// Invalidate steps based on a set of parameters changed.
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bool invalidate_state_by_config_options(const std::vector<t_config_option_key> &opt_keys, bool &invalidate_all_model_objects);
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SLAPrintConfig m_print_config;
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SLAPrinterConfig m_printer_config;
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SLAMaterialConfig m_material_config;
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SLAPrintObjectConfig m_default_object_config;
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PrintObjects m_objects;
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std::vector<bool> m_stepmask;
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// Ready-made data for rasterization.
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std::vector<PrintLayer> m_printer_input;
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// The archive object which collects the raster images after slicing
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SLAPrinter *m_printer = nullptr;
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// Estimated print time, material consumed.
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SLAPrintStatistics m_print_statistics;
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class StatusReporter
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{
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double m_st = 0;
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public:
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void operator()(SLAPrint & p,
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double st,
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const std::string &msg,
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unsigned flags = SlicingStatus::DEFAULT,
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const std::string &logmsg = "");
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double status() const { return m_st; }
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} m_report_status;
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friend SLAPrintObject;
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};
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// Helper functions:
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bool is_zero_elevation(const SLAPrintObjectConfig &c);
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sla::SupportTreeConfig make_support_cfg(const SLAPrintObjectConfig& c);
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sla::PadConfig::EmbedObject builtin_pad_cfg(const SLAPrintObjectConfig& c);
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sla::PadConfig make_pad_cfg(const SLAPrintObjectConfig& c);
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bool validate_pad(const TriangleMesh &pad, const sla::PadConfig &pcfg);
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} // namespace Slic3r
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#endif /* slic3r_SLAPrint_hpp_ */
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