SoIndexedQuadMesh Class Reference

Indexed quadrilateral mesh shape node. More...

#include <Inventor/nodes/SoIndexedQuadMesh.h>

Inheritance diagram for SoIndexedQuadMesh:
SoIndexedShape SoVertexShape SoShape SoNode SoFieldContainer SoBase SoRefCounter SoTypedObject

List of all members.

Public Member Functions

virtual SoType getTypeId () const
 SoIndexedQuadMesh ()

Static Public Member Functions

static SoType getClassTypeId ()

Public Attributes

SoSFInt32 verticesPerColumn
SoSFInt32 verticesPerRow

Detailed Description

Indexed quadrilateral mesh shape node.

This shape node constructs quadrilaterals out of vertices. The vertices may be specified in the vertexProperty field (from SoVertexShape), or by the current inherited coordinates. For optimal performance, the vertexProperty field is recommended.

SoIndexedQuadMesh uses the indices in the coordIndex field, in order, starting with the first one. The number of vertices in the columns and rows of the mesh are specified by the verticesPerColumn and verticesPerRow fields. (Note that these numbers are 1 greater than the number of quadrilaterals per row and per column.)

For example, an SoIndexedQuadMesh with verticesPerColumn of 3, and verticesPerRow of 4 would use coordinates 1, 2, 3, and 4 for the first row of vertices, coordinates 5, 6, 7, and 8 for the second row, and coordinates 9, 10, 11, and 12 for the third (last) row. The result is a mesh of 3 quadrilaterals across by 2 down.

The coordinates of the mesh are transformed by the current cumulative transformation. The mesh is drawn with the current light model and drawing style.

Treatment of the current material and normal binding is as follows: The PER_PART binding specifies a material or normal for each row of the mesh. The PER_FACE binding specifies a material or normal for each quadrilateral. The corresponding _INDEXED bindings are the same, but use the materialIndex or normalIndex indices (see SoIndexedShape). The default material binding is OVERALL. The default normal binding is PER_VERTEX_INDEXED.

If any normals (or materials) are specified, Open Inventor assumes you provide the correct number of them, as indicated by the binding. You will see unexpected results if you specify fewer normals (or materials) than the shape requires. If no normals are specified, they will be generated automatically.

NOTE: A quad mesh may not render or pick correctly if any of its polygons are self-intersecting or non-planar.




SoCoordinate3, SoDrawStyle, SoFaceDetail, SoFullSceneAntialiasing, SoIndexedFaceSet, SoIndexedTriangleStripSet, SoQuadMesh, SoVertexProperty

Constructor & Destructor Documentation

SoIndexedQuadMesh::SoIndexedQuadMesh (  ) 

Creates an indexed quadrilateral mesh node with default settings.

Member Function Documentation

static SoType SoIndexedQuadMesh::getClassTypeId (  )  [static]

Returns the type identifier for this class.

Reimplemented from SoIndexedShape.

virtual SoType SoIndexedQuadMesh::getTypeId (  )  const [virtual]

Returns the type identifier for this specific instance.

Reimplemented from SoIndexedShape.

Member Data Documentation

Number of vertices per column.

Number of vertices per row.

The documentation for this class was generated from the following file:

Open Inventor Toolkit reference manual, generated on 8 Apr 2021
Copyright © Thermo Fisher Scientific All rights reserved.