检查TriangleMesh对象是否具有三角形的纹理坐标值(UV坐标)。
def has_triangle_uvs(self) -> bool:
"""
Check whether the triangle mesh has triangle UVs.
Returns:
bool: Whether the triangle mesh has triangle UVs.
"""
无参数。
import open3d as o3d
import numpy as np
# 创建三角形纹理坐标
tri_uvs = np.array([
[0.0, 0.0],
[1.0, 0.0],
[0.0, 1.0],
[1.0, 1.0]
], dtype=np.float64)
# 通过三角形索引创建TriangleMesh对象
tri_mesh = o3d.geometry.TriangleMesh()
tri_mesh.vertices = o3d.utility.Vector3dVector([
[0.0, 0.0, 0.0],
[1.0, 0.0, 0.0],
[0.0, 1.0, 0.0],
[1.0, 1.0, 0.0]
])
tri_mesh.triangles = o3d.utility.Vector3iVector([
[0, 1, 2],
[1, 3, 2]
])
tri_mesh.triangle_uvs = o3d.utility.Vector2dVector(tri_uvs)
# 检查TriangleMesh对象是否具有三角形的纹理坐标值
has_uvs = tri_mesh.has_triangle_uvs()
print(has_uvs) # True
compute_vertex_normals
函数计算三角形法向量并通过paint_uniform_color
函数将三角形着色,然后使用texture_map_from_color_map
函数生成纹理坐标值。