MDrawData Class Reference
[OpenMayaUI - API module for user interface]

#include <MDrawData.h>

List of all members.

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Detailed Description

Draw data used in the draw methods of MPxSurfaceShapeUI.

The MDrawData class holds geometry specific information for user defined shapes which maya does not intrinsicly know about.

This class is used in the draw methods of MPxSurfaceShapeUI For each draw request you must create and add a draw data object which will contain geometry specific information that you will need in the subsequent call to MPxSurfaceShapeUI::draw.

MDrawData contains one void* member which is a pointer to an object that you define. This object is the geometry needed to draw your shape.

To create draw data use the function MPxSurfaceShapeUI::getDrawData. This function takes two arguments, the first is a pointer to your geometry object, the second is the draw data being created. To add the data to a request use MDrawRequest::setDrawData.

Draw data is also used to carry texture information to your draw method. For materials with texture you must call MMaterial::evaluateTexture from your MPxSurfaceShapeUI::getDrawRequests method. Then in your draw method use MMaterial::applyTexture to set up the viewport to draw using the textured material.

Examples:

apiMeshShapeUI.cpp, apiSimpleShapeUI.cpp, pnTrianglesNode.cpp, and quadricShape.cpp.

Public Member Functions
	MDrawData ()
	MDrawData (const MDrawData &in)
	~MDrawData ()
void *	geometry ()
Protected Member Functions
MDrawData &	operator= (const MDrawData &other)
Friends
class	MMaterial
class	MPxSurfaceShapeUI
class	MDrawRequest

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Constructor & Destructor Documentation

MDrawData::MDrawData

(

)

Constructor.

Creates an empty draw data object. Use MPxSurfaceShapeUI::getDrawData to set up this object.

MDrawData::MDrawData

(

const MDrawData &

other

)

Copy constructor.

Parameters:

[in]

other

draw data to copy

MDrawData::~MDrawData

(

)

Destructor.

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Member Function Documentation

void * MDrawData::geometry

(

)

Returns the geometry associated with this draw data object. The geometry is set using the getDrawData method of MPxSurfaceShapeUI.

Returns:

A pointer to the geometry.

Examples:

apiMeshShapeUI.cpp, apiSimpleShapeUI.cpp, and quadricShape.cpp.

MDrawData & MDrawData::operator=

(

const MDrawData &

other

)

[protected]

Operator =

Parameters:

[in]

other

draw data input