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adds export of normal derivation-colored mesh

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ccolin 2020-10-02 17:48:36 +02:00
parent 8d253a3c91
commit c564671b93
1 changed files with 24 additions and 5 deletions
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29
src/main.cpp
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@ -1,6 +1,6 @@
#include "my_mesh.h" #include "my_mesh.h"
#include <ctgmath> #include <cmath>
#include <iostream> #include <iostream>
#include <fstream> #include <fstream>
@ -104,7 +104,19 @@ void stats_n_neighbors(MyMesh &mesh) {
} }
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define MIN(a, b) ((a) < (b) ? (a) : (b))
static float f(int n, float h, float s, float v) {
float k = fmod(n + h / 60, 6);
return v - v * s * MAX(0, MIN(k, MIN(4 - k, 1)));
}
static OpenMesh::Vec3uc hsv_to_rgb(float h, float s, float v) {
return OpenMesh::Vec3uc {f(5, h, s, v) * 255, f(3, h, s, v) * 255, f(1, h, s, v) * 255};
}
void stats_normal_deviation(MyMesh &mesh) { void stats_normal_deviation(MyMesh &mesh) {
const float s = 1, v = 1, min_h = 50, max_h = 0;
mesh.update_normals(); mesh.update_normals();
for (const VertexHandle &vh : mesh.vertices()) { for (const VertexHandle &vh : mesh.vertices()) {
MyMesh::Normal normal = mesh.normal(vh); MyMesh::Normal normal = mesh.normal(vh);
@ -114,6 +126,7 @@ void stats_normal_deviation(MyMesh &mesh) {
if (angle > max) if (angle > max)
max = angle; max = angle;
} }
mesh.set_color(vh, (MyMesh::Color) hsv_to_rgb(fmod(max * 360 / (max_h - min_h) + max_h, 360), s, v));
std::cout << max << " "; std::cout << max << " ";
} }
std::cout << std::endl; std::cout << std::endl;
@ -156,14 +169,20 @@ int main(int argc, char *argv[]) {
cerr << "Aire moyenne : " << area / mesh.n_faces() << endl; cerr << "Aire moyenne : " << area / mesh.n_faces() << endl;
if (argc == 3) { if (argc == 3) {
string cmd = argv[2]; string cmd = argv[2];
if (cmd == "surface") if (cmd == "surface") {
stats_surface_area(mesh); stats_surface_area(mesh);
else if (cmd == "valence") }
else if (cmd == "valence") {
stats_n_neighbors(mesh); stats_n_neighbors(mesh);
else if (cmd == "deviation") }
else if (cmd == "deviation") {
stats_normal_deviation(mesh); stats_normal_deviation(mesh);
else if (cmd == "dièdre") OpenMesh::IO::write_mesh(mesh, "out.ply",
OpenMesh::IO::Options(OpenMesh::IO::Options::VertexColor));
}
else if (cmd == "dièdre") {
stats_dihedral_angles(mesh); stats_dihedral_angles(mesh);
}
else { else {
cerr << "Commande inconnue : " << cmd << endl; cerr << "Commande inconnue : " << cmd << endl;
return 1; return 1;