Class SoIndexedNurbsCurve
- All Implemented Interfaces:
SafeDisposable
knotVector
field specifies a floating-point array of values; the values are the coordinates of the knot points in the curve, and you must enter them in non-decreasing order. The numControlPoints
field specifies the number of control points the curve will have and will use the current coordinates that are indexed from the coordIndex
field.
You can get a curve of minimum order (2) by specifying two more knots than control points and having at least two control points. This curve would be a set of line segments connecting the control points together.
You can get a curve of maximum order (8) by specifying 8 more knots than control points and having at least 8 control points. In this curve, each control point would have influence on a larger portion of the curve than with curves of lesser order.
The control points of the curve are transformed by the current transformation matrix. The curve is drawn with the current lighting model and drawing style (drawing style FILLED is treated as LINES). The coordinates, normals, and texture coordinates of a NURBS curve are generated, so you cannot bind explicit normals or texture coordinates to a NURBS curve.
The approximation of the curve by line segments is affected by the current complexity value.
Shape Antialiasing type is SoShape.LINES
.
File format/default:
IndexedNurbsCurve {
numControlPoints | 0 |
coordIndex | 0 |
knotVector | 0 |
Action behavior:
SoGLRenderAction
Draws the curve based on the current coordinates, material, and so on.
SoRayPickAction
Picks the curve based on the current coordinates and transformation.
SoGetBoundingBoxAction
Computes the bounding box that encloses all control points of the curve with the current transformation applied to them. Sets the center to the average of the control points.
SoCallbackAction
If any line segment callbacks are registered with the action, they will be invoked for each successive segment approximating the curve.
- See Also:
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Nested Class Summary
Nested classes/interfaces inherited from class com.openinventor.inventor.nodes.SoShape
SoShape.ShapeTypes
Nested classes/interfaces inherited from class com.openinventor.inventor.nodes.SoNode
SoNode.RenderModes
Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor
Inventor.ConstructorCommand
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Field Summary
FieldsFields inherited from class com.openinventor.inventor.nodes.SoNurbsCurve
knotVector, numControlPoints
Fields inherited from class com.openinventor.inventor.nodes.SoShape
boundingBoxIgnoring
Fields inherited from class com.openinventor.inventor.Inventor
VERBOSE_LEVEL, ZeroHandle
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Constructor Summary
ConstructorsConstructorDescriptionCreates an indexed NURBS curve node with default settings. -
Method Summary
Methods inherited from class com.openinventor.inventor.nodes.SoShape
getShapeType, isPrimitiveRestartAvailable, isPrimitiveRestartAvailable
Methods inherited from class com.openinventor.inventor.nodes.SoNode
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
Methods inherited from class com.openinventor.inventor.fields.SoFieldContainer
copyFieldValues, copyFieldValues, enableNotify, fieldsAreEqual, get, getAllFields, getEventIn, getEventOut, getField, getFieldName, hasDefaultValues, isNotifyEnabled, set, setToDefaults
Methods inherited from class com.openinventor.inventor.misc.SoBase
dispose, getName, isDisposable, isSynchronizable, setName, setSynchronizable
Methods inherited from class com.openinventor.inventor.Inventor
getNativeResourceHandle
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Field Details
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coordIndex
Coordinate indices for the control points.
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Constructor Details
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SoIndexedNurbsCurve
public SoIndexedNurbsCurve()Creates an indexed NURBS curve node with default settings.
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