class MGeometryPrimitive

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public members:

enum	DrawPrimitiveType Specifies the data primitive type constructed by the indexing array kInvalidIndexType Default value is not valid kPoints Corresponds to GL_POINTS in OpenGL kLines Corresponds to GL_LINES in OpenGL (individual unconnected line segments) kLineStrip Corresponds to GL_LINE_STRIP in OpenGL kLineLoop Corresponds to GL_LINE_LOOP in OpenGL (non-filled, connected line segments) kTriangles Corresponds to GL_TRIANGLES In OpenGL kTriangleStrip Corresponds to GL_TRIANGLE_STRIP in OpenGL kTriangleFan Corresponds to GL_TRIANGLE_FAN in OpenGL kQuads Corresponds to GL_QUADS in OpenGL kQuadStrip Corresponds to GL_QUAD_STRIP in OpenGL kPolygon Corresponds to GL_POLYGON in OpenGL
	~MGeometryPrimitive () Destructor
int	uniqueID () const
DrawPrimitiveType	drawPrimitiveType () const
unsigned int	elementCount () const
MGeometryData::ElementType	dataType () const
const void *	data () const

Documentation

Description

MGeometryPrimitive is a class describes the topology used for accessing MGeometryData.

Topology is specified as a set of index values which references into data elements in an MGeometryData. Index values can be assumed to be stored in contiguous memory.

A "draw primitive type" indicates the format of the indexing as follows:

• kPoint : individual unconnected points.
• kLine : individual unconnected line segments.
• kLineStrip : connected line strip.
• kLineLoop : closed line loop.
• kTriangle : filled triangle.
• kTriangleStrip : filled triangle strip.
• kTriangleFan : filled triangle fan
• kQuad : filled quadrilateral (quad).
• kQuadStrip : filled quad strip.
• kPolygon : filled N-sided polygon

Internal Maya data which is passed to the user via this class is always assumed to be non-modifiable. If modified, stability cannot be ensured.

Functions

MGeometryPrimitive:: ~MGeometryPrimitive ()

Description

Class destructor.

MGeometryPrimitive::DrawPrimitiveType MGeometryPrimitive:: drawPrimitiveType () const

Description

Get the data type for the data.

Arguments

• None

Return Value

• Geometry data type. MGeometryPrimitive::kInvalid on error.

int MGeometryPrimitive:: uniqueID () const

Description

Return the per session unique identifier

Arguments

• None

Return Value

• Unique data identifier.

unsigned int MGeometryPrimitive:: elementCount () const

Description

Return element count.

Arguments

• None

Return Value

• Element count. 0 is returned on error.

MGeometryData::ElementType MGeometryPrimitive:: dataType () const

Description

Return element data type.

Arguments

• None

Return Value

• Element type. MGeometryData::kInvalidElementType is returned on error.

const void * MGeometryPrimitive:: data () const

Description

Retrive a pointer to the internal data

Arguments

• None

Return Value

• Void pointer to the data. Pointer is NULL on error.

This class has no child classes.