public class SoIndexedTriangleFanSet extends SoIndexedShape
vertexProperty
field (from SoVertexShape
), or the current inherited coordinates. For optimal performance, the vertexProperty
field is recommended.
SoIndexedTriangleFanSet
uses the indices in the coordIndex
field (from SoIndexedShape
) to specify the vertices of the triangle fans. An index of SO_END_FAN_INDEX (-1) indicates that the current fan has ended and the next one begins.
The vertices of the faces are transformed by the current transformation matrix. The faces are drawn with the current light model and drawing style.
Treatment of the current material and normal binding is as follows: PER_PART specifies a material or normal per fan. PER_FACE binding specifies a material or normal for each triangle. PER_VERTEX specifies a material or normal for each vertex. 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.
To render triangles that are not in fans, see the SoIndexedTriangleSet
and SoIndexedTriangleStripSet
nodes.
Limitations:
File format/default:
IndexedTriangleFanSet {
vertexProperty | NULL |
coordIndex | -1 |
materialIndex | -1 |
normalIndex | -1 |
textureCoordIndex | -1 |
Action behavior:
SoGLRenderAction
Draws a fan set based on the current coordinates, normals, materials, drawing style, and so on.
SoRayPickAction
Picks on the fan set based on the current coordinates and transformation. Details about the intersection are returned in an SoFaceDetail
.
SoGetBoundingBoxAction
Computes the bounding box that encloses all vertices of the fan set with the current transformation applied to them. Sets the center to the average of the coordinates of all vertices.
SoCallbackAction
If any triangle callbacks are registered with the action, they will be invoked for each successive triangle forming the fan of the set.
See also:
SoCoordinate3
, SoDrawStyle
, SoFaceDetail
, SoFullSceneAntialiasing
, SoIndexedFaceSet
, SoIndexedTriangleSet
, SoTriangleStripSet
, SoVertexProperty
SoShape.ShapeTypes
SoNode.RenderModes
Inventor.ConstructorCommand
coordIndex, materialIndex, normalIndex, tangentIndex, textureCoordIndex
vertexProperty
boundingBoxIgnoring
VERBOSE_LEVEL, ZeroHandle
Constructor and Description |
---|
SoIndexedTriangleFanSet()
Constructs a default IndexedTriangleFanSet.
|
Modifier and Type | Method and Description |
---|---|
int |
getNumFans()
Returns the number of fans (parts)
|
int |
getNumTriangles()
Returns the number of triangles.
|
getNormalCache, getTangentCache
getShapeType, isPrimitiveRestartAvailable, isPrimitiveRestartAvailable
affectsState, callback, copy, copy, distribute, doAction, getAlternateRep, getBoundingBox, getByName, getMatrix, getPrimitiveCount, getRenderEngineMode, getRenderUnitID, GLRender, GLRenderBelowPath, GLRenderInPath, GLRenderOffPath, grabEventsCleanup, grabEventsSetup, handleEvent, isBoundingBoxIgnoring, isOverride, pick, rayPick, search, setOverride, touch, write
copyFieldValues, copyFieldValues, enableNotify, fieldsAreEqual, get, getAllFields, getEventIn, getEventOut, getField, getFieldName, hasDefaultValues, isNotifyEnabled, set, setToDefaults
dispose, getName, isDisposable, isSynchronizable, setName, setSynchronizable
getNativeResourceHandle
Generated on July 31, 2019, Copyright © Thermo Fisher Scientific. All rights reserved. http://www.openinventor.com