Follow-up of a7d1c9b5e9
- Simplified code to generate a smooth cylinder
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adb3d0101d
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3 changed files with 12 additions and 42 deletions
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@ -2254,7 +2254,7 @@ GLModel::Geometry smooth_sphere(unsigned int resolution, float radius)
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return data;
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}
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GLModel::Geometry smooth_cylinder(Axis axis, unsigned int resolution, float radius, float height)
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GLModel::Geometry smooth_cylinder(unsigned int resolution, float radius, float height)
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{
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resolution = std::max<unsigned int>(4, resolution);
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@ -2266,39 +2266,19 @@ GLModel::Geometry smooth_cylinder(Axis axis, unsigned int resolution, float radi
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data.reserve_vertices(sectorCount * 4 + 2);
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data.reserve_indices(sectorCount * 4 * 3);
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auto generate_vertices_on_circle = [sectorCount, sectorStep](Axis axis, float radius) {
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auto generate_vertices_on_circle = [sectorCount, sectorStep](float radius) {
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std::vector<Vec3f> ret;
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ret.reserve(sectorCount);
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for (unsigned int i = 0; i < sectorCount; ++i) {
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// from 0 to 2pi
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const float sectorAngle = (i != sectorCount) ? sectorStep * i : 0.0f;
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const float x1 = radius * std::cos(sectorAngle);
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const float x2 = radius * std::sin(sectorAngle);
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Vec3f v;
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switch (axis)
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{
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case X: { v = Vec3f(0.0f, x1, x2); break; }
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case Y: { v = Vec3f(-x1, 0.0f, x2); break; }
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case Z: { v = Vec3f(x1, x2, 0.0f); break; }
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default: { assert(false); break; }
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}
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ret.emplace_back(v);
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ret.emplace_back(radius * std::cos(sectorAngle), radius * std::sin(sectorAngle), 0.0f);
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}
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return ret;
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};
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const std::vector<Vec3f> base_vertices = generate_vertices_on_circle(axis, radius);
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Vec3f h;
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switch (axis)
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{
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case X: { h = height * Vec3f::UnitX(); break; }
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case Y: { h = height * Vec3f::UnitY(); break; }
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case Z: { h = height * Vec3f::UnitZ(); break; }
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default: { assert(false); break; }
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}
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const std::vector<Vec3f> base_vertices = generate_vertices_on_circle(radius);
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const Vec3f h = height * Vec3f::UnitZ();
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// stem vertices
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for (unsigned int i = 0; i < sectorCount; ++i) {
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@ -2321,14 +2301,7 @@ GLModel::Geometry smooth_cylinder(Axis axis, unsigned int resolution, float radi
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// bottom cap vertices
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Vec3f cap_center = Vec3f::Zero();
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unsigned int cap_center_id = data.vertices_count();
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Vec3f normal;
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switch (axis)
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{
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case X: { normal = -Vec3f::UnitX(); break; }
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case Y: { normal = -Vec3f::UnitY(); break; }
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case Z: { normal = -Vec3f::UnitZ(); break; }
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default: { assert(false); break; }
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}
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Vec3f normal = -Vec3f::UnitZ();
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data.add_vertex(cap_center, normal);
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for (unsigned int i = 0; i < sectorCount; ++i) {
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@ -374,16 +374,13 @@ namespace GUI {
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GLModel::Geometry diamond(unsigned int resolution);
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#if ENABLE_LEGACY_OPENGL_REMOVAL
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// create a sphere with the given resolution and smooth normals
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// create a sphere with smooth normals
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// the origin of the sphere is in its center
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// the radius of the sphere is the given value
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GLModel::Geometry smooth_sphere(unsigned int resolution, float radius);
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// create a cylinder with the given resolution and smooth normals
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// the axis of the cylinder is the given value
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// the radius of the cylinder is the given value
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// the height of the cylinder is the given value
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// the origin of the cylinder is in the center of the cap face having axis == 0
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GLModel::Geometry smooth_cylinder(Axis axis, unsigned int resolution, float radius, float height);
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// create a cylinder with smooth normals
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// the axis of the cylinder is the Z axis
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// the origin of the cylinder is the center of its bottom cap face
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GLModel::Geometry smooth_cylinder(unsigned int resolution, float radius, float height);
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#endif // ENABLE_LEGACY_OPENGL_REMOVAL
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} // namespace GUI
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@ -23,7 +23,7 @@ GLGizmoMeasure::GLGizmoMeasure(GLCanvas3D& parent, const std::string& icon_filen
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: GLGizmoBase(parent, icon_filename, sprite_id)
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{
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m_vbo_sphere.init_from(smooth_sphere(16, 7.5f));
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m_vbo_cylinder.init_from(smooth_cylinder(Z, 16, 5.0f, 1.0f));
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m_vbo_cylinder.init_from(smooth_cylinder(16, 5.0f, 1.0f));
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}
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bool GLGizmoMeasure::on_mouse(const wxMouseEvent &mouse_event)
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