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test.h
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test.h
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#ifndef NURBS_TEST_H
#define NURBS_TEST_H
#include "BezierCurve.h"
#include "NURBSCurve.h"
#include "NURBSSurface.h"
bool loadpoints(string name,MatrixXd &mat) {
ifstream in(name);
if (!in) {
cout << "error: can't open file" + name << endl;
return false;
}
int rows = 0;
int cols = 0;
in >> rows >> cols;
mat = MatrixXd(rows, cols);
for (int i = 0; i < mat.rows(); i++) {
for (int j = 0; j < mat.cols(); j++) {
in >> mat(i, j);
}
}
cout << "matrix: \n" << mat << endl;
return true;
}
void testBasisFunction()
{
NURBSCurve nurbs;
VectorXd knotvector(10);
knotvector << 0, 0, 0, 0, 0.5, 0.6, 1, 1, 1, 1;
cout << "value: " << nurbs.basis(0, 4, 0.0, knotvector) << endl;
cout << "value: " << nurbs.basis(0, 4, 0.001, knotvector) << endl;
cout << "value: " << nurbs.basis(0, 4, 0.5, knotvector) << endl;
cout << "value: " << nurbs.basis(5, 4, 1.0, knotvector) << endl;
cout << "value: " << nurbs.basis(5, 4, 0.999, knotvector) << endl;
}
void testInterpolate(igl::opengl::glfw::Viewer &viewer)
{
NURBSCurve nurbs;
MatrixXd points = (MatrixXd(3, 2) <<
-5, -25,
-8, -10,
-5, -5).finished();
nurbs.interpolate(points);
cout << "knots: " << nurbs.knots.transpose() << endl;
nurbs.isRational = false;
nurbs.draw(viewer);
viewer.data().add_points(points,RowVector3d(0.0,1.0,0.0));
viewer.core.align_camera_center(points);
}
void testCube(igl::opengl::glfw::Viewer &viewer)
{
// Inline mesh of a cube
const Eigen::MatrixXd V= (Eigen::MatrixXd(8,3)<<
0.0,0.0,0.0,
0.0,0.0,1.0,
0.0,1.0,0.0,
0.0,1.0,1.0,
1.0,0.0,0.0,
1.0,0.0,1.0,
1.0,1.0,0.0,
1.0,1.0,1.0).finished();
const Eigen::MatrixXi F = (Eigen::MatrixXi(12,3)<<
1,7,5,
1,3,7,
1,4,3,
1,2,4,
3,8,7,
3,4,8,
5,7,8,
5,8,6,
1,5,6,
1,6,2,
2,6,8,
2,8,4).finished().array()-1;
viewer.data().set_mesh(V, F);
viewer.data().set_face_based(true);
}
void testBezierCurve(igl::opengl::glfw::Viewer &viewer)
{
// test BezierCurve
Eigen::MatrixXd controlP(5, 2);
controlP <<
0.0, 0.0,
1.0, 1.0,
2.0, -1.0,
3.0, 0.0,
4.0, 2.0;
BezierCurve curve(controlP);
curve.show(viewer);
viewer.core.align_camera_center(controlP);
}
void testNURBSCurve(igl::opengl::glfw::Viewer &viewer)
{
Eigen::MatrixXd controlP1(4, 4);
controlP1 <<
-1.0, 0.0, 0.0, 1.0,
-1.0 / 3, 2.0 / 3, 0.0, 1.0 / 3,
1.0 / 3, 2.0 / 3, 0.0, 1.0 / 3,
1.0, 0.0, 0.0, 1.0;
//cout << "controlP: " << controlP1 << endl;
Eigen::VectorXd knots1(8);
knots1 <<
0.0,0.0,0.0,0.0,1.0,1.0, 1.0, 1.0;
//cout << "hahahaha" << endl;
NURBSCurve nurbs1(3, 4, controlP1, knots1,true);
Eigen::MatrixXd controlP2(7, 3);
controlP2 <<
1.0, 0.0, 1.0,
0.5, 0.5, 0.5,
-0.5, 0.5, 0.5,
-1.0, 0.0, 1.0,
-0.5, -0.5, 0.5,
0.5, -0.5, 0.5,
1.0, 0.0, 1.0;
Eigen::VectorXd knots2(10);
knots2 <<
0.0, 0.0, 0.0, 0.25, 0.5, 0.5, 0.75, 1.0, 1.0, 1.0;
NURBSCurve nurbs2(6, 3, controlP2, knots2, true);
nurbs2.draw(viewer);
viewer.core.align_camera_center(nurbs2.controlP);
nurbs2.saveNURBS("circle");
}
void testCylindr(igl::opengl::glfw::Viewer &viewer)
{
vector<MatrixXd> controlPolygon(2);
controlPolygon[0] = (MatrixXd(9, 4) <<
1.0, 0.0, 0.0, 1.0,
0.7071, 0.7071, 0.0, 0.7071,
0.0, 1.0, 0.0, 1.0,
-0.7071, 0.7071, 0.0, 0.7071,
-1.0, 0.0, 0.0, 1.0,
-0.7071, -0.7071, 0.0, 0.7071,
0.0, -1.0, 0.0, 1.0,
0.7071, -0.7071, 0.0, 0.7071,
1.0, 0.0, 0.0, 1.0).finished();
controlPolygon[1] = (MatrixXd(9, 4) <<
1.0, 0.0, 1.0, 1.0,
0.7071, 0.7071, 0.7071, 0.7071,
0.0, 1.0, 1.0, 1.0,
-0.7071, 0.7071, 0.7071, 0.7071,
-1.0, 0.0, 1.0, 1.0,
-0.7071, -0.7071, 0.7071, 0.7071,
0.0, -1.0, 1.0, 1.0,
0.7071, -0.7071, 0.7071, 0.7071,
1.0, 0.0, 1.0, 1.0).finished();
Eigen::VectorXd uknots(12);
Eigen::VectorXd vkonts(4);
uknots << 0, 0, 0, 0.25, 0.25, 0.5, 0.5, 0.75, 0.75, 1, 1, 1;
vkonts << 0, 0, 1, 1;
VectorXi order(2);
order << 3, 2;
NURBSSurface nurbs(order, controlPolygon, uknots, vkonts, true);
nurbs.draw(viewer);
cout << "hahahahah" << endl;
viewer.core.align_camera_center(nurbs.mesh_V, nurbs.mesh_F);
nurbs.saveNURBS("cylindr");
}
void testTorus(igl::opengl::glfw::Viewer &viewer)
{
vector<MatrixXd> controlPolygon(9);
{
controlPolygon[0] = (MatrixXd(9, 4) <<
-125.0, 0.0, 0.0, 1.0,
-125.0, 0.0, 125.0, 1.0,
0.0, 0.0, 125.0, 1.0,
125.0, 0.0, 125.0, 1.0,
125.0, 0.0, 0.0, 1.0,
125.0, 0.0, -125.0, 1.0,
0.0, 0.0, -125.0, 1.0,
-125.0, 0.0, -125.0, 1.0,
-125.0, 0.0, 0.0, 1.0).finished();
controlPolygon[1] = (MatrixXd(9, 4) <<
-88.375, 70.7, 0.0, 0.707,
-88.375, 70.7, 88.375, 0.707,
0.0, 70.7, 88.375, 0.707,
88.375, 70.7, 88.375, 0.707,
88.375, 70.7, 0.0, 0.707,
88.375, 70.7, -88.375, 0.707,
0.0, 70.7, -88.375, 0.707,
-88.375, 70.7, -88.375, 0.707,
-88.375, 70.7, 0.0, 0.707).finished();
controlPolygon[2] = (MatrixXd(9, 4) <<
-225.0, 100.0, 0.0, 1.0,
-225.0, 100.0, 225.0, 1.0,
0.0, 100.0, 225.0, 1.0,
225.0, 100.0, 225.0, 1.0,
225.0, 100.0, 0.0, 1.0,
225.0, 100.0, -225.0, 1.0,
0.0, 100.0, -225.0, 1.0,
-225.0, 100.0, -225.0, 1.0,
-225.0, 100.0, 0.0, 1.0).finished();
controlPolygon[3] = (MatrixXd(9, 4) <<
-229.775, 70.7, 0.0, 0.707,
-229.775, 70.7, 229.775, 0.707,
0.0, 70.7, 229.775, 0.707,
229.775, 70.7, 229.775, 0.707,
229.775, 70.7, 0.0, 0.707,
229.775, 70.7, -229.775, 0.707,
0.0, 70.7, -229.775, 0.707,
-229.775, 70.7, -229.775, 0.707,
-229.775, 70.7, 0.0, 0.707).finished();
controlPolygon[4] = (MatrixXd(9, 4) <<
-325.0, 0.0, 0.0, 1.0,
-325.0, 0.0, 325.0, 1.0,
0.0, 0.0, 325.0, 1.0,
325.0, 0.0, 325.0, 1.0,
325.0, 0.0, 0.0, 1.0,
325.0, 0.0, -325.0, 1.0,
0.0, 0.0, -325.0, 1.0,
-325.0, 0.0, -325.0, 1.0,
-325.0, 0.0, 0.0, 1.0).finished();
controlPolygon[5] = (MatrixXd(9, 4) <<
-229.775, -70.7, 0.0, 0.707,
-229.775, -70.7, 229.775, 0.707,
0.0, -70.7, 229.775, 0.707,
229.775, -70.7, 229.775, 0.707,
229.775, -70.7, 0.0, 0.707,
229.775, -70.7, -229.775, 0.707,
0.0, -70.7, -229.775, 0.707,
-229.775, -70.7, -229.775, 0.707,
-229.775, -70.7, 0.0, 0.707).finished();
controlPolygon[6] = (MatrixXd(9, 4) <<
-225.0, -100.0, 0.0, 1.0,
-225.0, -100.0, 225.0, 1.0,
0.0, -100.0, 225.0, 1.0,
225.0, -100.0, 225.0, 1.0,
225.0, -100.0, 0.0, 1.0,
225.0, -100.0, -225.0, 1.0,
0.0, -100.0, -225.0, 1.0,
-225.0, -100.0, -225.0, 1.0,
-225.0, -100.0, 0.0, 1.0).finished();
controlPolygon[7] = (MatrixXd(9, 4) <<
-88.375, -70.7, 0.0, 0.707,
-88.375, -70.7, 88.375, 0.707,
0.0, -70.7, 88.375, 0.707,
88.375, -70.7, 88.375, 0.707,
88.375, -70.7, 0.0, 0.707,
88.375, -70.7, -88.375, 0.707,
0.0, -70.7, -88.375, 0.707,
-88.375, -70.7, -88.375, 0.707,
-88.375, -70.7, 0.0, 0.707).finished();
controlPolygon[8] = (MatrixXd(9, 4) <<
-125.0, 0.0, 0.0, 1.0,
-125.0, 0.0, 125.0, 1.0,
0.0, 0.0, 125.0, 1.0,
125.0, 0.0, 125.0, 1.0,
125.0, 0.0, 0.0, 1.0,
125.0, 0.0, -125.0, 1.0,
0.0, 0.0, -125.0, 1.0,
-125.0, 0.0, -125.0, 1.0,
-125.0, 0.0, 0.0, 1.0).finished();
}
Eigen::VectorXd uknots(12);
Eigen::VectorXd vkonts(12);
uknots << 0, 0, 0, 0.25, 0.25, 0.5, 0.5, 0.75, 0.75, 1, 1, 1;
vkonts << 0, 0, 0, 0.25, 0.25, 0.5, 0.5, 0.75, 0.75, 1, 1, 1;
VectorXi order(2);
order << 3, 3;
NURBSSurface nurbs(order, controlPolygon, uknots, vkonts, true);
nurbs.draw(viewer);
// Use the z coordinate as a scalar field over the surface
//Eigen::VectorXd Z = nurbs.mesh_V.col(2);
//Eigen::MatrixXd C;
//// Compute per-vertex colors
//igl::jet(Z, true, C);
//// Add per-vertex colors
//viewer.data().set_colors(C);
cout << "hahahahah" << endl;
viewer.core.align_camera_center(nurbs.mesh_V, nurbs.mesh_F);
nurbs.saveNURBS("torus");
}
void testSurface1(igl::opengl::glfw::Viewer &viewer)
{
vector<MatrixXd> controlPolygon(6);
controlPolygon[0] = (MatrixXd(6, 3) <<
-25, -25, -10,
-25, -15, -5,
-25, -5, 0,
-25, 5, 0,
-25, 15, -5,
-25, 25, -10).finished();
controlPolygon[1] = (MatrixXd(6, 3) <<
-15, -25, -8,
-15, -15, -4,
-15, -5, -4,
-15, 5, -4,
-15, 15, -4,
-15, 25, -8).finished();
controlPolygon[2] = (MatrixXd(6, 3) <<
-5, -25, -5,
-5, -15, -3,
-5, -5, -8,
-5, 5, -8,
-5, 15, -3,
-5, 25, -5).finished();
controlPolygon[3] = (MatrixXd(6, 3) <<
5, -25, -3,
5, -15, -2,
5, -5, -8,
5, 5, -8,
5, 15, -2,
5, 25, -3).finished();
controlPolygon[4] = (MatrixXd(6, 3) <<
15, -25, -8,
15, -15, -4,
15, -5, -4,
15, 5, -4,
15, 15, -4,
15, 25, -8).finished();
controlPolygon[5] = (MatrixXd(6, 3) <<
25, -25, -10,
25, -15, -5,
25, -5, 2,
25, 5, 2,
25, 15, -5,
25, 25, -10).finished();
Eigen::VectorXd uknots(10);
Eigen::VectorXd vkonts(10);
uknots << 0.0, 0.0,0.0, 0.0, 1.0, 2.0, 3.0, 3.0,3.0,3.0;
vkonts << 0.0, 0.0,0.0, 0.0, 1.0, 2.0, 3.0, 3.0,3.0,3.0;
VectorXi order(2);
order << 4, 4;
NURBSSurface nurbs(order, controlPolygon, uknots, vkonts, false);
nurbs.draw(viewer);
cout << "hahahahah" << endl;
viewer.core.align_camera_center(nurbs.mesh_V, nurbs.mesh_F);
nurbs.saveNURBS("surface1");
//cout << "nurbs: \n" << nurbs.mesh_V << endl;
cout << "finished surface1" << endl;
}
#endif // !NURBS_TEST_H