Mesh Exploration Example

Table of Contents

• Description
• Files

Explores triangulation, polylines and point sets inside a mesh.

Description

This example demonstrates how to explore Mesh mesh of a model: triangles, polylines, and point sets.

1. The model is loaded using ModelData::ModelReader .
2. For each ModelData::Part , its ModelData::Body are inspected.
   
3. If a body is a ModelData::MeshBody , all its ModelData::MeshShape objects are traversed.
   
4. Supported mesh shape types:
   
   • ModelData::IndexedTriangleSet — triangles
     
   • ModelData::PolylineSet — 3D polylines
     
   • ModelData::Polyline2dSet — 2D polylines
     
   • ModelData::PointSet — point clouds
     

For each type, the example prints basic information: number of elements, vertex coordinates, indices, and normals (if available).

Part = "MESH"
MeshBody 0
MeshShape 0 IndexedTriangleSet type.
IndexedTriangleSet: 160 triangles:
Triangle 0:
    Node 0: Vertex 0 (81.6497, 0, 0)
    Node 1: Vertex 1 (40.8248, 0, 70.7107)
    Node 2: Vertex 2 (0, 0, 0)
Triangle 1:
    Node 0: Vertex 3 (40.8248, 66.6667, 23.5702)
    Node 1: Vertex 1 (40.8248, 0, 70.7107)
    Node 2: Vertex 0 (81.6497, 0, 0)
Triangle 2:
    Node 0: Vertex 3 (40.8248, 66.6667, 23.5702)
    Node 1: Vertex 2 (0, 0, 0)
    Node 2: Vertex 1 (40.8248, 0, 70.7107)
...

Files

• C++: ./examples/cxx/exploring/mesh/main.cxx
• C#: ./examples/csharp/exploring/mesh/Program.cs
• Java: ./examples/java/exploring/mesh/mesh.java
• Python: ./examples/python/exploring/mesh/mesh.py