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Tessellation Class CATSurfaceTessellator
CATSurfaceTessellator
Usage: you must use this class as is. You should never derive it.
public class CATSurfaceTessellator
Class defining a tessellation operator on surfaces.
This operator computes a discretized geometry on the surfaces as triangles.
The corner of the triangles are called points. Three parameters tune the tessellation result:
- Sag
- Defines the maximum distance between a bar and the object to tessellate
- Step
- Defines the maximum length of a bar. If not defined, the step is infinite
(this parameter is unused)
- Angle
- Defines the maximum angle between the normals at each bar end.
The tessellation operator follows the scheme of all CGM operator:
- Create an operator instance,
- Run,
- Optionally, adds other curves to tessellate in the same operation,
- Recover the results by the means of iterators,
- Delete the operator instance. The deletion of the operator leads to the deletion
of the iterators and the arrays of results.
Constructor and Destructor Index
- o
CATSurfaceTessellator(double,double)
- Constructs a CATSurfaceTessellator with an infinite step.
- o
~CATSurfaceTessellator()
-
Method Index
- o
AddSurface(CATSurface*,CATSurLimits&)
- Adds an other surface to this CATSurfaceTessellator.
- o
GetSurface(CATSurface*,CATBoolean&,CATTessPointIter**,CATTessStripeIter**,CATTessFanIter**,CATTessPolyIter**,CATTessTrianIter**)
- Retrieves the results associated with a surface.
- o
Run()
- Runs this CATSurfaceTessellator.
- o
SetStep(double)
- Defines a finite step for this CATCurveTessellator.
Constructor and Destructor
o CATSurfaceTessellator
public CATSurfaceTessellator( | double | iSag, |
| double | iAngle | =CATPI*.25) |
-
Constructs a CATSurfaceTessellator with an infinite step.
- Parameters:
-
- iSag
- The Sag value.
- iAngle
- The Angle value.
o ~CATSurfaceTessellator
public ~CATSurfaceTessellator( | ) |
-
Methods
o AddSurface
-
Adds an other surface to this CATSurfaceTessellator.
- Parameters:
-
- iSurface
- The other surface to tessellate in the same operation.
- iSurfaceLimits
- The part of the surface to take into account.
o GetSurface
-
Retrieves the results associated with a surface.
All the output iterators are allocated by the GetSurface method,
and are deleted when the operator is deleted.
- Parameters:
-
- iSurface
- A surface among the input surfaces.
- ioPlane
- Retrieves 1 if the surface is planar, 0 otherwise.
- oPoints
- A pointer to a CATTessPointIterator, to retrieve the computed points.
- oStrips
- A pointer to a CATTessStripIterator, to retrieve the computed triangle strips.
- oStrips
- A pointer to a CATTessFanIterator, to retrieve the computed triangle fans.
- oStrips
- A pointer to a CATTessPolygonIterator, to retrieve the computed polygons.
o Run
-
Runs this CATSurfaceTessellator.
o SetStep
public void SetStep( | double | iStep) |
-
Defines a finite step for this CATCurveTessellator.
- Parameters:
-
- iStep
- The Step value.
This object is included in the file: CATSurfaceTessellator.h
If needed, your Imakefile.mk should include the module: CATTessellation