compas_libigl/docs/examples/example_mapping_patterns.py at 71875636653c4646b042a2c8a2a3414e141ac99e · compas-dev/compas_libigl · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
from pathlib import Path

from compas.colors import Color
from compas.geometry import Point
from compas.datastructures import Mesh
from compas_viewer import Viewer
from compas_viewer.config import Config

from compas_libigl.mapping import map_pattern_to_mesh


# ==============================================================================
# Input geometry: 3D Mesh
# ==============================================================================

mesh = Mesh.from_obj(Path(__file__).parent.parent.parent / "data" / "minimal_surface.obj")


for vertex in mesh.vertices():
    x, y, z = mesh.vertex_attributes(vertex, "xyz")  # type: ignore
    mesh.vertex_attributes(vertex, "xyz", [x, -z, y])

# ==============================================================================
# Get Lowest and Highest points
# ==============================================================================

aabb = mesh.aabb()
fixed_vertices = []


for vertex in mesh.vertices():
    x, y, z = mesh.vertex_attributes(vertex, "xyz")  # type: ignore
    if abs(z - aabb.zmin) < 1e-3 or abs(z - aabb.zmax) < 1e-3:
        fixed_vertices.append(vertex)

# ==============================================================================
# Mapping: 3D Mesh, 2D Pattern, UV
# ==============================================================================

mesh_mapped0 = map_pattern_to_mesh("ZigZag", mesh, clip_boundaries=True, tolerance=1e-6, pattern_u=16, pattern_v=16, simplify_borders=True, fixed_vertices=fixed_vertices)
mesh_mapped1 = map_pattern_to_mesh("ZigZag", mesh, clip_boundaries=True, tolerance=1e-6, pattern_u=16, pattern_v=16, simplify_borders=False)
# ==============================================================================
# Viewer
# ==============================================================================

config = Config()
config.camera.target = [0, 0, 0]
config.camera.position = [0.75, 0, 0.75]

viewer = Viewer(config=config)

viewer.scene.add(mesh, name="mesh", show_faces=False, linecolor=Color.grey(), opacity=0.2)
viewer.scene.add(mesh_mapped0, name="mesh_mapped0", facecolor=Color.red(), show_points=True)
# viewer.scene.add(mesh_mapped1, name="mesh_mapped1", facecolor=Color.blue(), show_points=True, show_faces=False)

for p in fixed_vertices:
    viewer.scene.add(mesh.vertex_point(p), pointcolor=Color.red(), pointsize=10)

viewer.show()