SbExtrusionGenerator Class Reference

Factory that generates an extruded mesh from a polyline. More...

#include <Inventor/misc/SbExtrusionGenerator.h>

List of all members.

Classes

class  TriangleCBData
 Struct given to pushTriangleCallback.

Static Public Member Functions

static SoShapecreateFrom3DPoints (const std::vector< SbVec3f > &pointsInWorld, SoPath *nodePath, const SbViewVolume &volume, const SbBox3f &bboxInLocal=SbBox3f())
static SoShapecreateFrom2DPoints (const std::vector< SbVec2f > &pointsInCam, SoPath *nodePath, const SbViewVolume &volume, const SbBox3f &bboxInLocal=SbBox3f())
static SoShapecreateFrom2DPoints (const std::vector< SbVec2f > &pointsInCam, const SbMatrix &localToCam, const SbBox3f &bboxInLocal=SbBox3f())
static SoShapecreateFrom2DPoints (const std::vector< SbVec2f > &pointsInCam, const SbMatrix &camToLocal, float zMin=-1.0f, float zMax=1.0f)

Detailed Description

Factory that generates an extruded mesh from a polyline.

This class generates an extruded shape from a simple or a complex polyline. The line is extruded between the 2 planes parallel that can be specified with a boundingBox or directly in camera space (see createFrom2DPoints() methods) The generated shape is closed and contains only triangles in CCW order.

LIMITATIONS

NOTES

See related examples:

CircularExtrusion, CSGClippingGroup, EditingExtrusion, Editing


Member Function Documentation

static SoShape* SbExtrusionGenerator::createFrom2DPoints ( const std::vector< SbVec2f > &  pointsInCam,
const SbMatrix camToLocal,
float  zMin = -1.0f,
float  zMax = 1.0f 
) [static]

Create an extruded shape from points in camera space.

Parameters:
pointsInCam Polyline in normalized screen space ([-1, 1]x[-1, 1]).
camToLocal Transform matrix from camera space to local space (modelViewProjInv matrix)
zMin Min extrusion plane, in camera space. By default, it's the camera's near clip plane.
zMax Max extrusion plane, in camera space. By default, it's the camera's far clip plane.
Warning:
Return NULL if error occurred.
static SoShape* SbExtrusionGenerator::createFrom2DPoints ( const std::vector< SbVec2f > &  pointsInCam,
const SbMatrix localToCam,
const SbBox3f bboxInLocal = SbBox3f() 
) [static]

Create an extruded shape from points in camera space.

Parameters:
pointsInCam Polyline in normalized screen space ([-1, 1]x[-1, 1]).
localToCam Transform matrix from local space to camera space (modelViewProj matrix)
bboxInLocal Bounding box that specifies limits of extruded shape, expressed in local space. If not specified, the shape will be extruded between the camera near and far planes.
Warning:
Return NULL if error occurred.
static SoShape* SbExtrusionGenerator::createFrom2DPoints ( const std::vector< SbVec2f > &  pointsInCam,
SoPath nodePath,
const SbViewVolume volume,
const SbBox3f bboxInLocal = SbBox3f() 
) [static]

Create an extruded shape from points in camera space.

Parameters:
pointsInCam Polyline in normalized screen space ([-1, 1]x[-1, 1]).
nodePath Path from root to the node space in which the generated shape will be expressed. Generally, the separator which will contain the shape. If NULL, the shape will be expressed in world space.
volume View volume corresponding to the camera in which the points were taken.
bboxInLocal Bounding box that specifies limits of extruded shape, expressed in local space. If not specified, the shape will be extruded between the camera near and far planes.
Warning:
Return NULL if error occurred.
static SoShape* SbExtrusionGenerator::createFrom3DPoints ( const std::vector< SbVec3f > &  pointsInWorld,
SoPath nodePath,
const SbViewVolume volume,
const SbBox3f bboxInLocal = SbBox3f() 
) [static]

Create an extruded shape from points in world space.

Parameters:
pointsInWorld Polyline in world space.
nodePath Path from root to the node space in which the generated shape will be expressed. Generally, the separator which will contain the shape. If NULL, the shape will be expressed in world space.
volume View volume corresponding to the camera in which the points were taken.
bboxInLocal Bounding box that specifies limits of extruded shape, expressed in local space. If not specified, the shape will be extruded between the camera near and far planes.
Warning:
Return NULL if error occurred.

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

Open Inventor Toolkit reference manual, generated on 28 Oct 2019
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