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/*
* Viewer_instructor.cpp
*
* Created on: Aug 26, 2014
* Author: dsalinas
*/
#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_handle& 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"
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