public class SoVolumeTriangleStripSet extends SoTriangleStripSet
SoVolumeData node and the 3D shape formed by constructing triangle strips from vertices located at the coordinates specified in the vertexProperty field (from SoVertexShape), or the current inherited state. For optimal performance, use of the vertexProperty field is recommended.
The shape defined by this intersection is textured using the data from the current SoVolumeData node and SoTransferFunction node. This node can be used to create custom "slices" through the volume, for example a cylinder slice.
The interpolation field controls how the texture is interpolated.
When set to false, the clipGeometry field allows rendering of the portion which does not intersect the volume data. This portion is not textured and is rendered as a regular SoTriangleStripSet.
Limitation: This node uses 3D texturing and is not available if the hardware does not support this feature.
SoVolumeTriangleStripSet uses the current coordinates, in order, starting with the first one. The values in the numVertices field indicate the number of vertices to use for each triangle strip in the set. The number of values in this field determines the number of strips.
For example, if numVertices has the values [3,5], coordinates 1, 2, and 3 would be used for the first triangle strip and coordinates 4, 5, 6, 7, and 8 would be used for the second strip. This would result in 1 triangle in the first strip and 3 in the second.
The coordinates of the strips are transformed by the current cumulative transformation. The strips are 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 strip of the set. The PER_FACE binding specifies a material or normal for each triangle. The _INDEXED bindings are equivalent to their non-indexed counterparts. The default normal binding is PER_VERTEX. The default material binding is OVERALL.
If any normals (or materials) are specified, Open Inventor assumes you have provided 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.
If any texture coordinates are specified, SoVolumeIndexedFaceSet simply ignores them.
Notes:
SoVolumeTriangleStripSet. However the same transformation must be applied to the volume data node and all volume rendering nodes associated with that volume. So effectively any transformation nodes that affect the volume must be placed before the volume data node.
SoVolumeTriangleStripSet should not be used multiple times in the scene graph. In order to have the best trade-off between performances and memory footprint use a single SoVertexProperty node shared by several instances of SoVolumeTriangleStripSet.
File format/default:
VolumeTriangleStripSet {
| vertexProperty | NULL |
| startIndex | 0 |
| numVertices | -1 |
| clipGeometry | true |
| offset | 0 |
| interpolation | LINEAR |
Action behavior:
SoGLRenderAction
Draws a strip set based on the current coordinates, normals, materials, drawing style, and so on.
SoRayPickAction
Picks on the strip 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 strip 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 strips of the set.
See also:
SoVolumeData, SoTransferFunction, SoROI, SoCoordinate3, SoDrawStyle, SoFaceDetail, SoVolumeFaceSet, SoVolumeIndexedFaceSet, SoVolumeIndexedTriangleStripSet, SoVertexProperty
| Modifier and Type | Class and Description |
|---|---|
static class |
SoVolumeTriangleStripSet.Interpolations
Deprecated.
|
SoShape.ShapeTypesSoNode.RenderModesInventor.ConstructorCommand| Modifier and Type | Field and Description |
|---|---|
SoSFBool |
clipGeometry
Specifies to clip the geometry at the volume boundaries.
|
SoSFEnum<SoVolumeShape.Interpolations> |
interpolation
Interpolation mode.
|
SoSFFloat |
offset
Sets an offset value used for computing the texture coordinates.
|
numVerticesstartIndexvertexPropertyboundingBoxIgnoringVERBOSE_LEVEL, ZeroHandle| Constructor and Description |
|---|
SoVolumeTriangleStripSet()
Constructor.
|
getNormalCache, getTangentCachegetShapeType, isPrimitiveRestartAvailable, isPrimitiveRestartAvailableaffectsState, 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, writecopyFieldValues, copyFieldValues, enableNotify, fieldsAreEqual, get, getAllFields, getEventIn, getEventOut, getField, getFieldName, hasDefaultValues, isNotifyEnabled, set, setToDefaultsdispose, getName, isDisposable, isSynchronizable, setName, setSynchronizablegetNativeResourceHandlepublic final SoSFBool clipGeometry
SoROI node also affects the clipping process. Default is true.public final SoSFFloat offset
public final SoSFEnum<SoVolumeShape.Interpolations> interpolation
Generated on July 31, 2019, Copyright © Thermo Fisher Scientific. All rights reserved. http://www.openinventor.com