54 lines
1.3 KiB
Python
Executable File
54 lines
1.3 KiB
Python
Executable File
# Add the igl library to the modules search path
|
|
import sys, os
|
|
sys.path.insert(0, os.getcwd() + "/../")
|
|
|
|
import pyigl as igl
|
|
|
|
V = igl.eigen.MatrixXd()
|
|
F = igl.eigen.MatrixXi()
|
|
V_uv = igl.eigen.MatrixXd()
|
|
|
|
def key_down(viewer, key, modifier):
|
|
if key == ord('1'):
|
|
# Plot the 3D mesh
|
|
viewer.data.set_mesh(V,F)
|
|
viewer.core.align_camera_center(V,F)
|
|
elif key == ord('2'):
|
|
# Plot the mesh in 2D using the UV coordinates as vertex coordinates
|
|
viewer.data.set_mesh(V_uv,F)
|
|
viewer.core.align_camera_center(V_uv,F)
|
|
viewer.data.compute_normals()
|
|
return False
|
|
|
|
# Load a mesh in OFF format
|
|
igl.readOFF("../../tutorial/shared/camelhead.off", V, F)
|
|
|
|
# Find the open boundary
|
|
bnd = igl.eigen.MatrixXi()
|
|
igl.boundary_loop(F,bnd)
|
|
|
|
# Map the boundary to a circle, preserving edge proportions
|
|
bnd_uv = igl.eigen.MatrixXd()
|
|
igl.map_vertices_to_circle(V,bnd,bnd_uv)
|
|
|
|
# Harmonic parametrization for the internal vertices
|
|
igl.harmonic(V,F,bnd,bnd_uv,1,V_uv)
|
|
|
|
# Scale UV to make the texture more clear
|
|
V_uv *= 5;
|
|
|
|
# Plot the mesh
|
|
viewer = igl.viewer.Viewer()
|
|
viewer.data.set_mesh(V, F)
|
|
viewer.data.set_uv(V_uv)
|
|
viewer.callback_key_down = key_down
|
|
|
|
# Disable wireframe
|
|
viewer.core.show_lines = False
|
|
|
|
# Draw checkerboard texture
|
|
viewer.core.show_texture = True
|
|
|
|
# Launch the viewer
|
|
viewer.launch()
|