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Diffstat (limited to 'src/GudhUI/view/Viewer_instructor.cpp')
| -rw-r--r-- | src/GudhUI/view/Viewer_instructor.cpp | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/src/GudhUI/view/Viewer_instructor.cpp b/src/GudhUI/view/Viewer_instructor.cpp new file mode 100644 index 00000000..9a0f1cd3 --- /dev/null +++ b/src/GudhUI/view/Viewer_instructor.cpp @@ -0,0 +1,179 @@ +/* This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT. + * See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details. + * Author(s): David Salinas + * + * Copyright (C) 2014 Inria + * + * Modification(s): + * - YYYY/MM Author: Description of the modification + */ + +#include <utility> + +#include "Viewer_instructor.h" +#include "utils/UI_utils.h" +#include "FirstCoordProjector.h" + +Viewer_instructor::Viewer_instructor(QWidget* parent, + Viewer* viewer, + const Complex& mesh + ) + : viewer_(viewer), mesh_(mesh), projector_(new FirstCoordProjector3D()) { + viewer_->set_instructor(this); +} + +void Viewer_instructor::initialize_bounding_box() { + auto pair_bounding_box = compute_bounding_box_corners(); + viewer_->set_bounding_box(proj(pair_bounding_box.first), proj(pair_bounding_box.second)); + viewer_->init_scene(); +} + +std::pair<Complex::Point, Complex::Point> Viewer_instructor::compute_bounding_box_corners() { + if (mesh_.empty()) { + return std::make_pair(Point(-1, -1, -1, 1), Point(1, 1, 1, 1)); + } else { + double x_min = 1e10; + double y_min = 1e10; + double z_min = 1e10; + double x_max = -1e10; + double y_max = -1e10; + double z_max = -1e10; + for (auto vi : mesh_.vertex_range()) { + auto pt = proj(mesh_.point(vi)); + x_min = (std::min)(x_min, pt.x()); + y_min = (std::min)(y_min, pt.y()); + z_min = (std::min)(z_min, pt.z()); + + x_max = (std::max)(x_max, pt.x()); + y_max = (std::max)(y_max, pt.y()); + z_max = (std::max)(z_max, pt.z()); + } + return std::make_pair(Point(x_min, y_min, z_min, 1.), + Point(x_max, y_max, z_max, 1.)); + } +} + +void Viewer_instructor::show_entire_scene() { + viewer_->show_entire_scene(); +} + +const qglviewer::Camera* Viewer_instructor::camera() const { + return viewer_->camera(); +} + +int +Viewer_instructor::width() const { + return viewer_->width(); +} + +int +Viewer_instructor::height() const { + return viewer_->height(); +} + +/** + * to change display parameters + */ +View_parameter& Viewer_instructor::view_params() { + return view_params_; +} + +void +Viewer_instructor::give_instructions() { + if (view_params_.relative_light) + viewer_->set_light_direction(); + else + viewer_->set_light_direction(view_params_.theta, view_params_.phi); + viewer_->set_light(); + + if (view_params_.edge_mode) draw_edges(); + if (view_params_.triangle_mode) draw_triangles(); + if (view_params_.vertex_mode) draw_points(); +} + +void Viewer_instructor::draw_edges() { + viewer_->begin_draw_edges(view_params_.size_edges, false); + + for (auto edge : mesh_.edge_range()) { + set_color_edge(edge); + const Point& a = mesh_.point(mesh_.first_vertex(edge)); + const Point& b = mesh_.point(mesh_.second_vertex(edge)); + viewer_->draw_edges(proj(a), proj(b)); + } + + viewer_->end_draw_edges(); +} + +void Viewer_instructor::draw_triangles() { + const double size_triangles = 1.0; + viewer_->begin_draw_triangles(size_triangles, view_params_.light); + + for (const auto& fit : mesh_.triangle_range()) { + set_color_triangle(fit); + if (view_params_.triangle_mode) { + auto fit_it = fit.begin(); + const Point& p1 = mesh_.point(*fit_it); + const Point& p2 = mesh_.point(*(++fit_it)); + const Point& p3 = mesh_.point(*(++fit_it)); + viewer_->draw_triangles(proj(p1), proj(p2), proj(p3)); + } + } + viewer_->end_draw_triangles(); +} + +void Viewer_instructor::draw_points() { + viewer_->begin_draw_points(view_params_.size_vertices); + for (auto vi : mesh_.vertex_range()) { + viewer_->set_size_point(view_params_.size_vertices); + set_color_vertex(vi); + viewer_->draw_points(proj(mesh_.point(vi))); + } + viewer_->end_draw_points(); +} + +void Viewer_instructor::draw_edge(const Point&, const Point&) { } + +void Viewer_instructor::draw_point(const Point&) { } + +/** + * set the right color of vertex/edge/triangle considering the view_params choice + */ +void Viewer_instructor::set_color_vertex(Vertex_handle vh) { + viewer_->set_color(Color(view_params_.light_edges, view_params_.light_edges, view_params_.light_edges)); +} + +void Viewer_instructor::set_color_edge(Edge_handle eh) { + viewer_->set_color(Color(view_params_.light_edges, view_params_.light_edges, view_params_.light_edges)); +} + +void Viewer_instructor::set_color_triangle(const Simplex& triangle) { + viewer_->set_color(Color(view_params_.light_triangles, view_params_.light_triangles, view_params_.light_triangles)); +} + +Viewer_instructor::Point_3 +Viewer_instructor::proj(const Point& p) const { + return (*projector_)(p); +} + +void Viewer_instructor::sceneChanged() { + UIDBG("sceneChanged"); + viewer_->update_GL(); +} + +void Viewer_instructor::change_draw_vertices() { + view_params_.change_vertex_mode(); +} + +void Viewer_instructor::change_draw_edges() { + view_params_.change_edge_mode(); +} + +void Viewer_instructor::change_draw_triangles() { + view_params_.change_triangle_mode(); +} + +void Viewer_instructor::change_light() { + view_params_.light = !view_params_.light; +} + +#include "Viewer_instructor.moc" |