PolygonalMesh Class Reference
This class provides a description of a mesh made of polygonal faces.
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#include <PolygonalMesh.h>
List of all members.
Detailed Description
This class provides a description of a mesh made of polygonal faces.
Its primary purpose is for loading geometry from files, which can then be used for visualization or collision detection. For example, the following lines load a mesh from a Wavefront OBJ file, then create a DecorativeMesh from it.
PolygonalMesh mesh;
std::ifstream file;
file.open("teapot.obj");
mesh.loadObjFile(file);
file.close();
DecorativeMesh decoration(mesh);
You can also read a polygon mesh from a VTK PolyData (.vtp) file.
Constructor & Destructor Documentation
Create a PolygonalMesh, which initially contains no vertices or faces.
Member Function Documentation
| int addFace |
( |
const Array_< int > & |
vertices |
) |
|
Add a face to the mesh.
- Parameters:
-
| vertices | indices of the vertices which make up the new face |
- Returns:
- the index of the newly added face
| int addVertex |
( |
const Vec3 & |
position |
) |
|
Add a vertex to the mesh.
- Parameters:
-
| position | the position of the vertex to add |
- Returns:
- the index of the newly added vertex
| int getFaceVertex |
( |
int |
face, |
|
|
int |
vertex | |
|
) |
| | const |
Get the index of one of the vertices of a face.
- Parameters:
-
| face | the index of the face |
| vertex | the index of the vertex within the face (from 0, 1, or 2 for a triangular face, etc.) |
- Returns:
- the index of the specified vertex
| const PolygonalMeshImpl& getImpl |
( |
|
) |
const |
| int getNumFaces |
( |
|
) |
const |
Get the number of faces in the mesh.
| int getNumVertices |
( |
|
) |
const |
Get the number of vertices in the mesh.
| int getNumVerticesForFace |
( |
int |
face |
) |
const |
Get the number of vertices that make up a face.
- Parameters:
-
| face | the index of the face |
| const Vec3& getVertexPosition |
( |
int |
vertex |
) |
const |
Get the position of a vertex in the mesh.
- Parameters:
-
| vertex | the index of the vertex to get |
- Returns:
- the position of the specified vertex
| void loadObjFile |
( |
std::istream & |
file |
) |
|
Load a Wavefront OBJ file, adding the vertices and faces it contains to this mesh.
- Parameters:
-
| file | an input stream from which to load the file contents |
| void loadVtpFile |
( |
const String & |
pathname |
) |
|
Load a VTK PolyData (.vtp) file, adding the vertices and faces it contains to this mesh.
- Parameters:
-
| pathname | the name of a .vtp file |
| void scaleMesh |
( |
Real |
scale |
) |
|
Scale a mesh by multiplying every vertex by a fixed value.
| void transformMesh |
( |
const Transform & |
transform |
) |
|
Transform a mesh by applying a Transform to every vertex.
| PolygonalMeshImpl& updImpl |
( |
|
) |
|
The documentation for this class was generated from the following file:
