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GLGizmoMeasure.cpp
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///|/ Copyright (c) Prusa Research 2019 - 2023 Lukáš Matěna @lukasmatena, Oleksandra Iushchenko @YuSanka, Enrico Turri @enricoturri1966, Vojtěch Bubník @bubnikv, Filip Sykala @Jony01
///|/
///|/ PrusaSlicer is released under the terms of the AGPLv3 or higher
///|/
#include "GLGizmoMeasure.hpp"
#include "slic3r/GUI/GLCanvas3D.hpp"
#include "slic3r/GUI/GUI_App.hpp"
#include "slic3r/GUI/Plater.hpp"
#include "slic3r/GUI/Gizmos/GizmoObjectManipulation.hpp"
#include "libslic3r/PresetBundle.hpp"
#include "libslic3r/MeasureUtils.hpp"
#include <imgui/imgui_internal.h>
#include <numeric>
#include <GL/glew.h>
#include <tbb/parallel_for.h>
#include <wx/clipbrd.h>
namespace Slic3r {
namespace GUI {
static const Slic3r::ColorRGBA SELECTED_1ST_COLOR = { 0.25f, 0.75f, 0.75f, 1.0f };
static const Slic3r::ColorRGBA SELECTED_2ND_COLOR = { 0.75f, 0.25f, 0.75f, 1.0f };
static const Slic3r::ColorRGBA NEUTRAL_COLOR = {0.5f, 0.5f, 0.5f, 1.0f};
static const Slic3r::ColorRGBA HOVER_COLOR = ColorRGBA::GREEN();
static const int POINT_ID = 100;
static const int EDGE_ID = 200;
static const int CIRCLE_ID = 300;
static const int PLANE_ID = 400;
static const int SEL_SPHERE_1_ID = 501;
static const int SEL_SPHERE_2_ID = 502;
static const float TRIANGLE_BASE = 10.0f;
static const float TRIANGLE_HEIGHT = TRIANGLE_BASE * 1.618033f;
static const std::string CTRL_STR =
#ifdef __APPLE__
"⌘"
#else
"Ctrl"
#endif //__APPLE__
;
static std::string format_double(double value)
{
char buf[1024];
sprintf(buf, "%.3f", value);
return std::string(buf);
}
static std::string format_vec3(const Vec3d& v)
{
char buf[1024];
sprintf(buf, "X: %.3f, Y: %.3f, Z: %.3f", v.x(), v.y(), v.z());
return std::string(buf);
}
static std::string surface_feature_type_as_string(Measure::SurfaceFeatureType type)
{
switch (type)
{
default:
case Measure::SurfaceFeatureType::Undef: { return ("No feature"); }
case Measure::SurfaceFeatureType::Point: { return _u8L("Vertex"); }
case Measure::SurfaceFeatureType::Edge: { return _u8L("Edge"); }
case Measure::SurfaceFeatureType::Circle: { return _u8L("Circle"); }
case Measure::SurfaceFeatureType::Plane: { return _u8L("Plane"); }
}
}
static std::string point_on_feature_type_as_string(Measure::SurfaceFeatureType type, int hover_id)
{
std::string ret;
switch (type) {
case Measure::SurfaceFeatureType::Point: { ret = _u8L("Vertex"); break; }
case Measure::SurfaceFeatureType::Edge: { ret = _u8L("Point on edge"); break; }
case Measure::SurfaceFeatureType::Circle: { ret = _u8L("Point on circle"); break; }
case Measure::SurfaceFeatureType::Plane: { ret = _u8L("Point on plane"); break; }
default: { assert(false); break; }
}
return ret;
}
static std::string center_on_feature_type_as_string(Measure::SurfaceFeatureType type)
{
std::string ret;
switch (type) {
case Measure::SurfaceFeatureType::Edge: { ret = _u8L("Center of edge"); break; }
case Measure::SurfaceFeatureType::Circle: { ret = _u8L("Center of circle"); break; }
default: { assert(false); break; }
}
return ret;
}
static GLModel::Geometry init_plane_data(const indexed_triangle_set& its, const std::vector<int>& triangle_indices)
{
GLModel::Geometry init_data;
init_data.format = { GUI::GLModel::Geometry::EPrimitiveType::Triangles, GLModel::Geometry::EVertexLayout::P3N3 };
init_data.reserve_indices(3 * triangle_indices.size());
init_data.reserve_vertices(3 * triangle_indices.size());
unsigned int i = 0;
for (int idx : triangle_indices) {
const Vec3f& v0 = its.vertices[its.indices[idx][0]];
const Vec3f& v1 = its.vertices[its.indices[idx][1]];
const Vec3f& v2 = its.vertices[its.indices[idx][2]];
const Vec3f n = (v1 - v0).cross(v2 - v0).normalized();
init_data.add_vertex(v0, n);
init_data.add_vertex(v1, n);
init_data.add_vertex(v2, n);
init_data.add_triangle(i, i + 1, i + 2);
i += 3;
}
return init_data;
}
static GLModel::Geometry init_torus_data(unsigned int primary_resolution, unsigned int secondary_resolution, const Vec3f& center,
float radius, float thickness, const Vec3f& model_axis, const Transform3f& world_trafo)
{
const unsigned int torus_sector_count = std::max<unsigned int>(4, primary_resolution);
const unsigned int section_sector_count = std::max<unsigned int>(4, secondary_resolution);
const float torus_sector_step = 2.0f * float(M_PI) / float(torus_sector_count);
const float section_sector_step = 2.0f * float(M_PI) / float(section_sector_count);
GLModel::Geometry data;
data.format = { GLModel::Geometry::EPrimitiveType::Triangles, GLModel::Geometry::EVertexLayout::P3N3 };
data.reserve_vertices(torus_sector_count * section_sector_count);
data.reserve_indices(torus_sector_count * section_sector_count * 2 * 3);
// vertices
const Transform3f local_to_world_matrix = world_trafo * Geometry::translation_transform(center.cast<double>()).cast<float>() *
Eigen::Quaternion<float>::FromTwoVectors(Vec3f::UnitZ(), model_axis);
for (unsigned int i = 0; i < torus_sector_count; ++i) {
const float section_angle = torus_sector_step * i;
const Vec3f radius_dir(std::cos(section_angle), std::sin(section_angle), 0.0f);
const Vec3f local_section_center = radius * radius_dir;
const Vec3f world_section_center = local_to_world_matrix * local_section_center;
const Vec3f local_section_normal = local_section_center.normalized().cross(Vec3f::UnitZ()).normalized();
const Vec3f world_section_normal = (Vec3f)(local_to_world_matrix.matrix().block(0, 0, 3, 3) * local_section_normal).normalized();
const Vec3f base_v = thickness * radius_dir;
for (unsigned int j = 0; j < section_sector_count; ++j) {
const Vec3f v = Eigen::AngleAxisf(section_sector_step * j, world_section_normal) * base_v;
data.add_vertex(world_section_center + v, (Vec3f)v.normalized());
}
}
// triangles
for (unsigned int i = 0; i < torus_sector_count; ++i) {
const unsigned int ii = i * section_sector_count;
const unsigned int ii_next = ((i + 1) % torus_sector_count) * section_sector_count;
for (unsigned int j = 0; j < section_sector_count; ++j) {
const unsigned int j_next = (j + 1) % section_sector_count;
const unsigned int i0 = ii + j;
const unsigned int i1 = ii_next + j;
const unsigned int i2 = ii_next + j_next;
const unsigned int i3 = ii + j_next;
data.add_triangle(i0, i1, i2);
data.add_triangle(i0, i2, i3);
}
}
return data;
}
static bool is_feature_with_center(const Measure::SurfaceFeature& feature)
{
const Measure::SurfaceFeatureType type = feature.get_type();
return (type == Measure::SurfaceFeatureType::Circle || (type == Measure::SurfaceFeatureType::Edge && feature.get_extra_point().has_value()));
}
static Vec3d get_feature_offset(const Measure::SurfaceFeature& feature)
{
Vec3d ret;
switch (feature.get_type())
{
case Measure::SurfaceFeatureType::Circle:
{
const auto [center, radius, normal] = feature.get_circle();
ret = center;
break;
}
case Measure::SurfaceFeatureType::Edge:
{
std::optional<Vec3d> p = feature.get_extra_point();
assert(p.has_value());
ret = *p;
break;
}
case Measure::SurfaceFeatureType::Point:
{
ret = feature.get_point();
break;
}
default: { assert(false); }
}
return ret;
}
class TransformHelper
{
struct Cache
{
std::array<int, 4> viewport;
Matrix4d ndc_to_ss_matrix;
Transform3d ndc_to_ss_matrix_inverse;
};
static Cache s_cache;
public:
static Vec3d model_to_world(const Vec3d& model, const Transform3d& world_matrix) {
return world_matrix * model;
}
static Vec4d world_to_clip(const Vec3d& world, const Matrix4d& projection_view_matrix) {
return projection_view_matrix * Vec4d(world.x(), world.y(), world.z(), 1.0);
}
static Vec3d clip_to_ndc(const Vec4d& clip) {
return Vec3d(clip.x(), clip.y(), clip.z()) / clip.w();
}
static Vec2d ndc_to_ss(const Vec3d& ndc, const std::array<int, 4>& viewport) {
const double half_w = 0.5 * double(viewport[2]);
const double half_h = 0.5 * double(viewport[3]);
return { half_w * ndc.x() + double(viewport[0]) + half_w, half_h * ndc.y() + double(viewport[1]) + half_h };
};
static Vec4d model_to_clip(const Vec3d& model, const Transform3d& world_matrix, const Matrix4d& projection_view_matrix) {
return world_to_clip(model_to_world(model, world_matrix), projection_view_matrix);
}
static Vec3d model_to_ndc(const Vec3d& model, const Transform3d& world_matrix, const Matrix4d& projection_view_matrix) {
return clip_to_ndc(world_to_clip(model_to_world(model, world_matrix), projection_view_matrix));
}
static Vec2d model_to_ss(const Vec3d& model, const Transform3d& world_matrix, const Matrix4d& projection_view_matrix, const std::array<int, 4>& viewport) {
return ndc_to_ss(clip_to_ndc(world_to_clip(model_to_world(model, world_matrix), projection_view_matrix)), viewport);
}
static Vec2d world_to_ss(const Vec3d& world, const Matrix4d& projection_view_matrix, const std::array<int, 4>& viewport) {
return ndc_to_ss(clip_to_ndc(world_to_clip(world, projection_view_matrix)), viewport);
}
static const Matrix4d& ndc_to_ss_matrix(const std::array<int, 4>& viewport) {
update(viewport);
return s_cache.ndc_to_ss_matrix;
}
static const Transform3d ndc_to_ss_matrix_inverse(const std::array<int, 4>& viewport) {
update(viewport);
return s_cache.ndc_to_ss_matrix_inverse;
}
private:
static void update(const std::array<int, 4>& viewport) {
if (s_cache.viewport == viewport)
return;
const double half_w = 0.5 * double(viewport[2]);
const double half_h = 0.5 * double(viewport[3]);
s_cache.ndc_to_ss_matrix << half_w, 0.0, 0.0, double(viewport[0]) + half_w,
0.0, half_h, 0.0, double(viewport[1]) + half_h,
0.0, 0.0, 1.0, 0.0,
0.0, 0.0, 0.0, 1.0;
s_cache.ndc_to_ss_matrix_inverse = s_cache.ndc_to_ss_matrix.inverse();
s_cache.viewport = viewport;
}
};
TransformHelper::Cache TransformHelper::s_cache = { { 0, 0, 0, 0 }, Matrix4d::Identity(), Transform3d::Identity() };
GLGizmoMeasure::GLGizmoMeasure(GLCanvas3D& parent, const std::string& icon_filename, unsigned int sprite_id)
: GLGizmoBase(parent, icon_filename, sprite_id)
{
GLModel::Geometry sphere_geometry = smooth_sphere(16, 7.5f);
m_sphere.mesh_raycaster = std::make_unique<MeshRaycaster>(std::make_shared<const TriangleMesh>(sphere_geometry.get_as_indexed_triangle_set()));
m_sphere.model.init_from(std::move(sphere_geometry));
GLModel::Geometry cylinder_geometry = smooth_cylinder(16, 5.0f, 1.0f);
m_cylinder.mesh_raycaster = std::make_unique<MeshRaycaster>(std::make_shared<const TriangleMesh>(cylinder_geometry.get_as_indexed_triangle_set()));
m_cylinder.model.init_from(std::move(cylinder_geometry));
}
bool GLGizmoMeasure::on_mouse(const wxMouseEvent &mouse_event)
{
m_mouse_pos = { double(mouse_event.GetX()), double(mouse_event.GetY()) };
if (mouse_event.Moving()) {
// only for sure
m_mouse_left_down = false;
return false;
}
else if (mouse_event.Dragging()) {
// Enable/Disable panning/rotating the 3D scene
// Ctrl is pressed or the mouse is not hovering a selected volume
bool unlock_dragging = mouse_event.CmdDown() || (m_hover_id == -1 && !m_parent.get_selection().contains_volume(m_parent.get_first_hover_volume_idx()));
// mode is not center selection or mouse is not hovering a center
unlock_dragging &= !mouse_event.ShiftDown() || (m_hover_id != SEL_SPHERE_1_ID && m_hover_id != SEL_SPHERE_2_ID && m_hover_id != POINT_ID);
return !unlock_dragging;
}
else if (mouse_event.LeftDown()) {
// let the event pass through to allow panning/rotating the 3D scene
if (mouse_event.CmdDown())
return false;
if (m_hover_id != -1) {
m_mouse_left_down = true;
auto detect_current_item = [this]() {
SelectedFeatures::Item item;
if (m_hover_id == SEL_SPHERE_1_ID) {
if (m_selected_features.first.is_center)
// mouse is hovering over a selected center
item = { true, m_selected_features.first.source, { Measure::SurfaceFeature(get_feature_offset(*m_selected_features.first.source)) } };
else if (is_feature_with_center(*m_selected_features.first.feature))
// mouse is hovering over a unselected center
item = { true, m_selected_features.first.feature, { Measure::SurfaceFeature(get_feature_offset(*m_selected_features.first.feature)) } };
else
// mouse is hovering over a point
item = m_selected_features.first;
}
else if (m_hover_id == SEL_SPHERE_2_ID) {
if (m_selected_features.second.is_center)
// mouse is hovering over a selected center
item = { true, m_selected_features.second.source, { Measure::SurfaceFeature(get_feature_offset(*m_selected_features.second.source)) } };
else if (is_feature_with_center(*m_selected_features.second.feature))
// mouse is hovering over a center
item = { true, m_selected_features.second.feature, { Measure::SurfaceFeature(get_feature_offset(*m_selected_features.second.feature)) } };
else
// mouse is hovering over a point
item = m_selected_features.second;
}
else {
switch (m_mode)
{
case EMode::FeatureSelection: { item = { false, m_curr_feature, m_curr_feature }; break; }
case EMode::PointSelection: { item = { false, m_curr_feature, Measure::SurfaceFeature(*m_curr_point_on_feature_position) }; break; }
}
}
return item;
};
auto requires_sphere_raycaster_for_picking = [this](const SelectedFeatures::Item& item) {
if (m_mode == EMode::PointSelection || item.feature->get_type() == Measure::SurfaceFeatureType::Point)
return true;
else if (m_mode == EMode::FeatureSelection) {
if (is_feature_with_center(*item.feature))
return true;
}
return false;
};
if (m_selected_features.first.feature.has_value()) {
const SelectedFeatures::Item item = detect_current_item();
if (m_selected_features.first != item) {
bool processed = false;
if (item.is_center) {
if (item.source == m_selected_features.first.feature) {
// switch 1st selection from feature to its center
m_selected_features.first = item;
processed = true;
}
else if (item.source == m_selected_features.second.feature) {
// switch 2nd selection from feature to its center
m_selected_features.second = item;
processed = true;
}
}
else if (is_feature_with_center(*item.feature)) {
if (m_selected_features.first.is_center && m_selected_features.first.source == item.feature) {
// switch 1st selection from center to its feature
m_selected_features.first = item;
processed = true;
}
else if (m_selected_features.second.is_center && m_selected_features.second.source == item.feature) {
// switch 2nd selection from center to its feature
m_selected_features.second = item;
processed = true;
}
}
if (!processed) {
remove_selected_sphere_raycaster(SEL_SPHERE_2_ID);
if (m_selected_features.second == item)
// 2nd feature deselection
m_selected_features.second.reset();
else {
// 2nd feature selection
m_selected_features.second = item;
if (requires_sphere_raycaster_for_picking(item))
m_selected_sphere_raycasters.push_back(m_parent.add_raycaster_for_picking(SceneRaycaster::EType::Gizmo, SEL_SPHERE_2_ID, *m_sphere.mesh_raycaster));
}
}
}
else {
remove_selected_sphere_raycaster(SEL_SPHERE_1_ID);
if (m_selected_features.second.feature.has_value()) {
// promote 2nd feature to 1st feature
remove_selected_sphere_raycaster(SEL_SPHERE_2_ID);
m_selected_features.first = m_selected_features.second;
if (requires_sphere_raycaster_for_picking(m_selected_features.first))
m_selected_sphere_raycasters.push_back(m_parent.add_raycaster_for_picking(SceneRaycaster::EType::Gizmo, SEL_SPHERE_1_ID, *m_sphere.mesh_raycaster));
m_selected_features.second.reset();
}
else
// 1st feature deselection
m_selected_features.first.reset();
}
}
else {
// 1st feature selection
const SelectedFeatures::Item item = detect_current_item();
m_selected_features.first = item;
if (requires_sphere_raycaster_for_picking(item))
m_selected_sphere_raycasters.push_back(m_parent.add_raycaster_for_picking(SceneRaycaster::EType::Gizmo, SEL_SPHERE_1_ID, *m_sphere.mesh_raycaster));
}
update_measurement_result();
m_imgui->set_requires_extra_frame();
return true;
}
else
// if the mouse pointer is on any volume, filter out the event to prevent the user to move it
// equivalent tp: return (m_parent.get_first_hover_volume_idx() != -1);
return m_curr_feature.has_value();
// fix: prevent restart gizmo when reselect object
// take responsibility for left up
if (m_parent.get_first_hover_volume_idx() >= 0)
m_mouse_left_down = true;
}
else if (mouse_event.LeftUp()) {
if (m_mouse_left_down) {
// responsible for mouse left up after selecting plane
m_mouse_left_down = false;
return true;
}
if (m_hover_id == -1 && !m_parent.is_mouse_dragging())
// avoid closing the gizmo if the user clicks outside of any volume
return true;
}
else if (mouse_event.RightDown()) {
// let the event pass through to allow panning/rotating the 3D scene
if (mouse_event.CmdDown())
return false;
}
else if (mouse_event.Leaving())
m_mouse_left_down = false;
return false;
}
void GLGizmoMeasure::data_changed(bool is_serializing)
{
m_parent.toggle_sla_auxiliaries_visibility(false, nullptr, -1);
update_if_needed();
m_last_inv_zoom = 0.0f;
m_last_plane_idx = -1;
if (m_pending_scale) {
update_measurement_result();
m_pending_scale = false;
}
else
m_selected_features.reset();
m_selected_sphere_raycasters.clear();
m_editing_distance = false;
m_is_editing_distance_first_frame = true;
}
bool GLGizmoMeasure::gizmo_event(SLAGizmoEventType action, const Vec2d& mouse_position, bool shift_down, bool alt_down, bool control_down)
{
if (action == SLAGizmoEventType::ShiftDown) {
if (m_shift_kar_filter.is_first()) {
m_mode = EMode::PointSelection;
disable_scene_raycasters();
}
m_shift_kar_filter.increase_count();
}
else if (action == SLAGizmoEventType::ShiftUp) {
m_shift_kar_filter.reset_count();
m_mode = EMode::FeatureSelection;
restore_scene_raycasters_state();
}
else if (action == SLAGizmoEventType::Delete) {
m_selected_features.reset();
m_selected_sphere_raycasters.clear();
m_parent.request_extra_frame();
}
else if (action == SLAGizmoEventType::Escape) {
if (!m_selected_features.first.feature.has_value()) {
update_measurement_result();
return false;
}
else {
if (m_selected_features.second.feature.has_value()) {
remove_selected_sphere_raycaster(SEL_SPHERE_2_ID);
m_selected_features.second.feature.reset();
}
else {
remove_selected_sphere_raycaster(SEL_SPHERE_1_ID);
m_selected_features.first.feature.reset();
}
update_measurement_result();
}
}
return true;
}
bool GLGizmoMeasure::on_init()
{
m_shortcut_key = WXK_CONTROL_U;
m_desc["feature_selection_caption"] = _L("ShiftLeft mouse button");
m_desc["feature_selection"] = _L("Select feature");
m_desc["point_selection_caption"] = _L("Shift + Left mouse button");
m_desc["point_selection"] = _L("Select point");
m_desc["reset_caption"] = _L("Delete");
m_desc["reset"] = _L("Restart selection");
m_desc["unselect_caption"] = _L("Esc");
m_desc["unselect"] = _L("Unselect");
return true;
}
void GLGizmoMeasure::on_set_state()
{
if (m_state == Off) {
m_parent.toggle_sla_auxiliaries_visibility(true, nullptr, -1);
m_shift_kar_filter.reset_count();
m_curr_feature.reset();
m_curr_point_on_feature_position.reset();
restore_scene_raycasters_state();
m_editing_distance = false;
m_is_editing_distance_first_frame = true;
m_measuring.reset();
m_raycaster.reset();
}
else {
m_mode = EMode::FeatureSelection;
// store current state of scene raycaster for later use
m_scene_raycasters.clear();
auto scene_raycasters = m_parent.get_raycasters_for_picking(SceneRaycaster::EType::Volume);
if (scene_raycasters != nullptr) {
m_scene_raycasters.reserve(scene_raycasters->size());
for (auto r : *scene_raycasters) {
SceneRaycasterState state = { r, r->is_active() };
m_scene_raycasters.emplace_back(state);
}
}
}
}
std::string GLGizmoMeasure::on_get_name() const
{
return _u8L("Measure");
}
bool GLGizmoMeasure::on_is_activable() const
{
const Selection& selection = m_parent.get_selection();
bool res = (wxGetApp().preset_bundle->printers.get_edited_preset().printer_technology() == ptSLA) ?
selection.is_single_full_instance() :
selection.is_single_full_instance() || selection.is_single_volume() || selection.is_single_modifier();
if (res)
res &= !selection.contains_sinking_volumes();
return res;
}
void GLGizmoMeasure::on_render()
{
#if ENABLE_MEASURE_GIZMO_DEBUG
render_debug_dialog();
#endif // ENABLE_MEASURE_GIZMO_DEBUG
// // do not render if the user is panning/rotating the 3d scene
// if (m_parent.is_mouse_dragging())
// return;
update_if_needed();
const Camera& camera = wxGetApp().plater()->get_camera();
const float inv_zoom = (float)camera.get_inv_zoom();
Vec3f position_on_model;
Vec3f normal_on_model;
size_t model_facet_idx;
const bool mouse_on_object = m_raycaster->unproject_on_mesh(m_mouse_pos, Transform3d::Identity(), camera, position_on_model, normal_on_model, nullptr, &model_facet_idx);
const bool is_hovering_on_feature = m_mode == EMode::PointSelection && m_hover_id != -1;
auto update_circle = [this, inv_zoom]() {
if (m_last_inv_zoom != inv_zoom || m_last_circle != m_curr_feature) {
m_last_inv_zoom = inv_zoom;
m_last_circle = m_curr_feature;
m_circle.reset();
const auto [center, radius, normal] = m_curr_feature->get_circle();
GLModel::Geometry circle_geometry = init_torus_data(64, 16, center.cast<float>(), float(radius), 5.0f * inv_zoom, normal.cast<float>(), Transform3f::Identity());
m_circle.mesh_raycaster = std::make_unique<MeshRaycaster>(std::make_shared<const TriangleMesh>(circle_geometry.get_as_indexed_triangle_set()));
m_circle.model.init_from(std::move(circle_geometry));
return true;
}
return false;
};
if (m_mode == EMode::FeatureSelection || m_mode == EMode::PointSelection) {
if (m_hover_id == SEL_SPHERE_1_ID || m_hover_id == SEL_SPHERE_2_ID) {
// Skip feature detection if hovering on a selected point/center
m_parent.remove_raycasters_for_picking(SceneRaycaster::EType::Gizmo, POINT_ID);
m_parent.remove_raycasters_for_picking(SceneRaycaster::EType::Gizmo, EDGE_ID);
m_parent.remove_raycasters_for_picking(SceneRaycaster::EType::Gizmo, PLANE_ID);
m_parent.remove_raycasters_for_picking(SceneRaycaster::EType::Gizmo, CIRCLE_ID);
m_curr_feature.reset();
m_curr_point_on_feature_position.reset();
}
else {
std::optional<Measure::SurfaceFeature> curr_feature = wxGetMouseState().LeftIsDown() ? m_curr_feature :
mouse_on_object ? m_measuring->get_feature(model_facet_idx, position_on_model.cast<double>()) : std::nullopt;
if (m_curr_feature != curr_feature ||
(curr_feature.has_value() && curr_feature->get_type() == Measure::SurfaceFeatureType::Circle && (m_curr_feature != curr_feature || m_last_inv_zoom != inv_zoom))) {
m_parent.remove_raycasters_for_picking(SceneRaycaster::EType::Gizmo, POINT_ID);
m_parent.remove_raycasters_for_picking(SceneRaycaster::EType::Gizmo, EDGE_ID);
m_parent.remove_raycasters_for_picking(SceneRaycaster::EType::Gizmo, PLANE_ID);
m_parent.remove_raycasters_for_picking(SceneRaycaster::EType::Gizmo, CIRCLE_ID);
m_raycasters.clear();
m_curr_feature = curr_feature;
if (!m_curr_feature.has_value())
return;
switch (m_curr_feature->get_type()) {
default: { assert(false); break; }
case Measure::SurfaceFeatureType::Point:
{
m_raycasters.insert({ POINT_ID, m_parent.add_raycaster_for_picking(SceneRaycaster::EType::Gizmo, POINT_ID, *m_sphere.mesh_raycaster) });
break;
}
case Measure::SurfaceFeatureType::Edge:
{
m_raycasters.insert({ EDGE_ID, m_parent.add_raycaster_for_picking(SceneRaycaster::EType::Gizmo, EDGE_ID, *m_cylinder.mesh_raycaster) });
break;
}
case Measure::SurfaceFeatureType::Circle:
{
update_circle();
m_raycasters.insert({ CIRCLE_ID, m_parent.add_raycaster_for_picking(SceneRaycaster::EType::Gizmo, CIRCLE_ID, *m_circle.mesh_raycaster) });
break;
}
case Measure::SurfaceFeatureType::Plane:
{
const auto [idx, normal, point] = m_curr_feature->get_plane();
if (m_last_plane_idx != idx) {
m_last_plane_idx = idx;
const indexed_triangle_set& its = m_measuring->get_its();
const std::vector<int>& plane_triangles = m_measuring->get_plane_triangle_indices(idx);
GLModel::Geometry init_data = init_plane_data(its, plane_triangles);
m_plane.reset();
m_plane.mesh_raycaster = std::make_unique<MeshRaycaster>(std::make_shared<const TriangleMesh>(init_data.get_as_indexed_triangle_set()));
}
m_raycasters.insert({ PLANE_ID, m_parent.add_raycaster_for_picking(SceneRaycaster::EType::Gizmo, PLANE_ID, *m_plane.mesh_raycaster) });
break;
}
}
}
}
}
if (m_mode != EMode::PointSelection)
m_curr_point_on_feature_position.reset();
else if (is_hovering_on_feature) {
auto position_on_feature = [this](int feature_type_id, const Camera& camera, std::function<Vec3f(const Vec3f&)> callback = nullptr) -> Vec3d {
auto it = m_raycasters.find(feature_type_id);
if (it != m_raycasters.end() && it->second != nullptr) {
Vec3f p;
Vec3f n;
const Transform3d& trafo = it->second->get_transform();
bool res = it->second->get_raycaster()->closest_hit(m_mouse_pos, trafo, camera, p, n);
if (res) {
if (callback)
p = callback(p);
return trafo * p.cast<double>();
}
}
return Vec3d(DBL_MAX, DBL_MAX, DBL_MAX);
};
if (m_curr_feature.has_value()) {
switch (m_curr_feature->get_type())
{
default: { assert(false); break; }
case Measure::SurfaceFeatureType::Point:
{
m_curr_point_on_feature_position = m_curr_feature->get_point();
break;
}
case Measure::SurfaceFeatureType::Edge:
{
const std::optional<Vec3d> extra = m_curr_feature->get_extra_point();
if (extra.has_value() && m_hover_id == POINT_ID)
m_curr_point_on_feature_position = *extra;
else {
const Vec3d pos = position_on_feature(EDGE_ID, camera, [](const Vec3f& v) { return Vec3f(0.0f, 0.0f, v.z()); });
if (!pos.isApprox(Vec3d(DBL_MAX, DBL_MAX, DBL_MAX)))
m_curr_point_on_feature_position = pos;
}
break;
}
case Measure::SurfaceFeatureType::Plane:
{
m_curr_point_on_feature_position = position_on_feature(PLANE_ID, camera);
break;
}
case Measure::SurfaceFeatureType::Circle:
{
const auto [center, radius, normal] = m_curr_feature->get_circle();
if (m_hover_id == POINT_ID)
m_curr_point_on_feature_position = center;
else {
const Vec3d world_pof = position_on_feature(CIRCLE_ID, camera, [](const Vec3f& v) { return v; });
const Eigen::Hyperplane<double, 3> plane(normal, center);
const Transform3d local_to_model_matrix = Geometry::translation_transform(center) * Eigen::Quaternion<double>::FromTwoVectors(Vec3d::UnitZ(), normal);
const Vec3d local_proj = local_to_model_matrix.inverse() * plane.projection(world_pof);
double angle = std::atan2(local_proj.y(), local_proj.x());
if (angle < 0.0)
angle += 2.0 * double(M_PI);
const Vec3d local_pos = radius * Vec3d(std::cos(angle), std::sin(angle), 0.0);
m_curr_point_on_feature_position = local_to_model_matrix * local_pos;
}
break;
}
}
}
}
else {
m_curr_point_on_feature_position.reset();
if (m_curr_feature.has_value() && m_curr_feature->get_type() == Measure::SurfaceFeatureType::Circle) {
if (update_circle()) {
m_parent.remove_raycasters_for_picking(SceneRaycaster::EType::Gizmo, CIRCLE_ID);
auto it = m_raycasters.find(CIRCLE_ID);
if (it != m_raycasters.end())
m_raycasters.erase(it);
m_raycasters.insert({ CIRCLE_ID, m_parent.add_raycaster_for_picking(SceneRaycaster::EType::Gizmo, CIRCLE_ID, *m_circle.mesh_raycaster) });
}
}
}
if (!m_curr_feature.has_value() && !m_selected_features.first.feature.has_value())
return;
GLShaderProgram* shader = wxGetApp().get_shader("gouraud_light");
if (shader == nullptr)
return;
shader->start_using();
shader->set_uniform("projection_matrix", camera.get_projection_matrix());
glsafe(::glClear(GL_DEPTH_BUFFER_BIT));
glsafe(::glEnable(GL_DEPTH_TEST));
const bool old_cullface = ::glIsEnabled(GL_CULL_FACE);
glsafe(::glDisable(GL_CULL_FACE));
const Transform3d& view_matrix = camera.get_view_matrix();
auto set_matrix_uniforms = [shader, &view_matrix](const Transform3d& model_matrix) {
const Transform3d view_model_matrix = view_matrix * model_matrix;
shader->set_uniform("view_model_matrix", view_model_matrix);
const Matrix3d view_normal_matrix = view_matrix.matrix().block(0, 0, 3, 3) * model_matrix.matrix().block(0, 0, 3, 3).inverse().transpose();
shader->set_uniform("view_normal_matrix", view_normal_matrix);
};
auto set_emission_uniform = [shader](const ColorRGBA& color, bool hover) {
shader->set_uniform("emission_factor", /*(color == GLVolume::SELECTED_COLOR) ? 0.0f :*/
hover ? 0.5f : 0.25f);
};
auto render_feature = [this, set_matrix_uniforms, set_emission_uniform](const Measure::SurfaceFeature& feature, const std::vector<ColorRGBA>& colors,
float inv_zoom, bool hover, bool update_raycasters_transform) {
switch (feature.get_type())
{
default: { assert(false); break; }
case Measure::SurfaceFeatureType::Point:
{
const Transform3d feature_matrix = Geometry::translation_transform(feature.get_point()) * Geometry::scale_transform(inv_zoom);
set_matrix_uniforms(feature_matrix);
set_emission_uniform(colors.front(), hover);
m_sphere.model.set_color(colors.front());
m_sphere.model.render();
if (update_raycasters_transform) {
auto it = m_raycasters.find(POINT_ID);
if (it != m_raycasters.end() && it->second != nullptr)
it->second->set_transform(feature_matrix);
}
break;
}
case Measure::SurfaceFeatureType::Circle:
{
const auto& [center, radius, normal] = feature.get_circle();
// render circle
const Transform3d circle_matrix = Transform3d::Identity();
set_matrix_uniforms(circle_matrix);
if (update_raycasters_transform) {
set_emission_uniform(colors.front(), hover);
m_circle.model.set_color(colors.front());
m_circle.model.render();
auto it = m_raycasters.find(CIRCLE_ID);
if (it != m_raycasters.end() && it->second != nullptr)
it->second->set_transform(circle_matrix);
}
else {
GLModel circle;
GLModel::Geometry circle_geometry = init_torus_data(64, 16, center.cast<float>(), float(radius), 5.0f * inv_zoom, normal.cast<float>(), Transform3f::Identity());
circle.init_from(std::move(circle_geometry));
set_emission_uniform(colors.front(), hover);
circle.set_color(colors.front());
circle.render();
}
// render center
if (colors.size() > 1) {
const Transform3d center_matrix = Geometry::translation_transform(center) * Geometry::scale_transform(inv_zoom);
set_matrix_uniforms(center_matrix);
set_emission_uniform(colors.back(), hover);
m_sphere.model.set_color(colors.back());
m_sphere.model.render();
auto it = m_raycasters.find(POINT_ID);
if (it != m_raycasters.end() && it->second != nullptr)
it->second->set_transform(center_matrix);
}
break;
}
case Measure::SurfaceFeatureType::Edge:
{
const auto& [from, to] = feature.get_edge();
// render edge
const Transform3d edge_matrix = Geometry::translation_transform(from) *
Eigen::Quaternion<double>::FromTwoVectors(Vec3d::UnitZ(), to - from) *
Geometry::scale_transform({ (double)inv_zoom, (double)inv_zoom, (to - from).norm() });
set_matrix_uniforms(edge_matrix);
set_emission_uniform(colors.front(), hover);
m_cylinder.model.set_color(colors.front());
m_cylinder.model.render();
if (update_raycasters_transform) {
auto it = m_raycasters.find(EDGE_ID);
if (it != m_raycasters.end() && it->second != nullptr)
it->second->set_transform(edge_matrix);
}
// render extra point
if (colors.size() > 1) {
const std::optional<Vec3d> extra = feature.get_extra_point();
if (extra.has_value()) {
const Transform3d point_matrix = Geometry::translation_transform(*extra) * Geometry::scale_transform(inv_zoom);
set_matrix_uniforms(point_matrix);
set_emission_uniform(colors.back(), hover);
m_sphere.model.set_color(colors.back());
m_sphere.model.render();
auto it = m_raycasters.find(POINT_ID);
if (it != m_raycasters.end() && it->second != nullptr)
it->second->set_transform(point_matrix);
}
}
break;
}
case Measure::SurfaceFeatureType::Plane:
{
const auto& [idx, normal, pt] = feature.get_plane();
assert(idx < m_plane_models_cache.size());
set_matrix_uniforms(Transform3d::Identity());
set_emission_uniform(colors.front(), hover);
m_plane_models_cache[idx].set_color(colors.front());
m_plane_models_cache[idx].render();
if (update_raycasters_transform) {
auto it = m_raycasters.find(PLANE_ID);
if (it != m_raycasters.end() && it->second != nullptr)
it->second->set_transform(Transform3d::Identity());
}
break;
}
}
};
auto hover_selection_color = [this]() {
return ((m_mode == EMode::PointSelection && !m_selected_features.first.feature.has_value()) ||
(m_mode != EMode::PointSelection && (!m_selected_features.first.feature.has_value() || *m_curr_feature == *m_selected_features.first.feature))) ?
SELECTED_1ST_COLOR : SELECTED_2ND_COLOR;
};
auto hovering_color = [this, hover_selection_color]() {
return (m_mode == EMode::PointSelection) ? HOVER_COLOR : hover_selection_color();
};
if (m_curr_feature.has_value()) {
// render hovered feature
std::vector<ColorRGBA> colors;
if (m_selected_features.first.feature.has_value() && *m_curr_feature == *m_selected_features.first.feature) {
// hovering over the 1st selected feature
if (m_selected_features.first.is_center)
// hovering over a center
colors = { NEUTRAL_COLOR, hovering_color() };
else if (is_feature_with_center(*m_selected_features.first.feature))
// hovering over a feature with center
colors = { hovering_color(), NEUTRAL_COLOR };
else
colors = { hovering_color() };
}
else if (m_selected_features.second.feature.has_value() && *m_curr_feature == *m_selected_features.second.feature) {
// hovering over the 2nd selected feature
if (m_selected_features.second.is_center)
// hovering over a center
colors = { NEUTRAL_COLOR, hovering_color() };
else if (is_feature_with_center(*m_selected_features.second.feature))
// hovering over a feature with center
colors = { hovering_color(), NEUTRAL_COLOR };
else
colors = { hovering_color() };
}
else {
switch (m_curr_feature->get_type())
{
default: { assert(false); break; }
case Measure::SurfaceFeatureType::Point:
{
colors.emplace_back(hover_selection_color());
break;
}
case Measure::SurfaceFeatureType::Edge:
case Measure::SurfaceFeatureType::Circle:
{
if (m_selected_features.first.is_center && m_curr_feature == m_selected_features.first.source)
colors = { SELECTED_1ST_COLOR, NEUTRAL_COLOR };
else if (m_selected_features.second.is_center && m_curr_feature == m_selected_features.second.source)
colors = { SELECTED_2ND_COLOR, NEUTRAL_COLOR };
else
colors = { hovering_color(), hovering_color() };
break;
}
case Measure::SurfaceFeatureType::Plane:
{
colors.emplace_back(hovering_color());
break;
}
}
}
render_feature(*m_curr_feature, colors, inv_zoom, true, true);
}
if (m_selected_features.first.feature.has_value() && (!m_curr_feature.has_value() || *m_curr_feature != *m_selected_features.first.feature)) {
// render 1st selected feature
std::optional<Measure::SurfaceFeature> feature_to_render;
std::vector<ColorRGBA> colors;
bool requires_raycaster_update = false;
if (m_hover_id == SEL_SPHERE_1_ID && (m_selected_features.first.is_center || is_feature_with_center(*m_selected_features.first.feature))) {
// hovering over a center
feature_to_render = m_selected_features.first.source;
colors = { NEUTRAL_COLOR, SELECTED_1ST_COLOR };
requires_raycaster_update = true;
}
else if (is_feature_with_center(*m_selected_features.first.feature)) {
// hovering over a feature with center
feature_to_render = m_selected_features.first.feature;
colors = { SELECTED_1ST_COLOR, NEUTRAL_COLOR };
requires_raycaster_update = true;
}
else {
feature_to_render = m_selected_features.first.feature;
colors = { SELECTED_1ST_COLOR };
requires_raycaster_update = m_selected_features.first.feature->get_type() == Measure::SurfaceFeatureType::Point;
}
render_feature(*feature_to_render, colors, inv_zoom, m_hover_id == SEL_SPHERE_1_ID, false);
if (requires_raycaster_update) {
auto it = std::find_if(m_selected_sphere_raycasters.begin(), m_selected_sphere_raycasters.end(),
[](std::shared_ptr<SceneRaycasterItem> item) { return SceneRaycaster::decode_id(SceneRaycaster::EType::Gizmo, item->get_id()) == SEL_SPHERE_1_ID; });
if (it != m_selected_sphere_raycasters.end())
(*it)->set_transform(Geometry::translation_transform(get_feature_offset(*m_selected_features.first.feature)) * Geometry::scale_transform(inv_zoom));
}
}
if (m_selected_features.second.feature.has_value() && (!m_curr_feature.has_value() || *m_curr_feature != *m_selected_features.second.feature)) {