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GMModelInterfaces Interface CATICGMCurveTessellator

Usage: an implementation of this interface is supplied and you must use it as is. You should not reimplement it.

interface CATICGMCurveTessellator

Class defining a tessellation operator on curves.

This operator computes a discretized geometry on the curves as bars. The extremities of the bars 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 by using CATCGMCreateCurveTessellator
Run,
Optionally, adds other curves to tessellate in the same operation,
Recover the results into arrays that are allocated by the operator,
Delete the operator instance. The deletion of the operator leads to the deletion of the arrays of results.

Method Index

o AddCurve(CATCurve*,CATCrvLimits&): Adds an other curve to this CATICGMCurveTessellator.
o GetCurve(CATCurve*,CATLONG32&,float**): Retrieves the results (in floats) associated with a curve.
o GetCurve(CATCurve*,CATLONG32&,double**): Retrieves the results (in doubles) associated with a curve.
o GetCurve(CATCurve*,CATMathSetOfPointsND**,CATMathSetOfPointsND**): Retrieves the results associated with a curve.
o Run(): Runs this CATICGMCurveTessellator.
o SetStep(double): Defines a finite step for this CATICGMCurveTessellator.

Methods

o AddCurve

public virtual AddCurve(		`iCurve`,
	const	`iCurveLimits`)

Adds an other curve to this CATICGMCurveTessellator.

Parameters:

iCurve: The other curve to tessellate in the same operation.
iCurveLimits: The part of the curve to take into account.

o GetCurve

public virtual GetCurve(		`iCurve`,
		`ioNumberOfPoints`,
		`oPointData`)

Retrieves the results (in floats) associated with a curve.

Parameters:

iCurve: A curve among the input curves.
ioNumberOfPoints: The number of points of the resulting tessellation.
oPointData: The array of the resulting points. This array is allocated by the GetCurve method. The j-th coordinate of the i-th point is oPointData[3*(i-1)+j-1].

o GetCurve

public virtual GetCurve(		`iCurve`,
		`ioNumberOfPoints`,
		`oPointData`)

Retrieves the results (in doubles) associated with a curve.

Parameters:

iCurve: A curve among the input curves.
ioNumberOfPoints: The number of points of the resulting tessellation.
oPointData: The array of the resulting points. This array is allocated by the GetCurve method. The j-th coordinate of the i-th point is oPointData[3*(i-1)+j-1].

o GetCurve

public virtual GetCurve(		`iCurve`,
		`oMathPoints`,
		`oCrvParams`)

Retrieves the results associated with a curve.

Parameters:

iCurve: A curve among the input curves.
oMathPoints: A CATMathSetOfPointsND pointer. This set contains the points (as 3 Cartesian coordinates) of the resulting tessellation.
oCrvParams: A CATMathSetOfPointsND pointer. This set contains the points (as a CATCrvParam on the underlying edge curve) of the resulting tessellation.

o Run

public virtual Run(

)

Runs this CATICGMCurveTessellator.

o SetStep

public virtual SetStep( iStep)

Defines a finite step for this CATICGMCurveTessellator.

Parameters:

iStep: The Step value.

This object is included in the file: CATICGMCurveTessellator.h
If needed, your Imakefile.mk should include the module: CATGMModelInterfaces