API_BodyType Struct Reference

Representation of a 3D body. More...

#include <APIdefs_3D.h>

Public Attributes
API_3D_Head	head
	Header information of this component. This specifies the type and database index.
API_Elem_Head	parent
	The floorplan element the body has been converted from.
Int32	status
	The properties of the body.
short	color
	Refers to the default color of the body edges.
Int32	iumat
	Refers to the default material of the body polygons.
float	xmin
	Minimum of the bounding box in X direction.
float	ymin
	Minimum of the bounding box in Y direction.
float	zmin
	Minimum of the bounding box in Z direction.
float	xmax
	Maximum of the bounding box in X direction.
float	ymax
	Maximum of the bounding box in Y direction.
float	zmax
	Maximum of the bounding box in Z direction.
Int32	nPgon
	Number of polygons in the body.
Int32	nPedg
	Number of edge references in the body.
Int32	nEdge
	Number of edges in the body.
Int32	nVert
	Number of vertices in the body.
Int32	nVect
	Number of normal vectors in the body.
API_Tranmat	tranmat
	The base transformation matrix.

Detailed Description

Representation of a 3D body.

Remarks

The 3D representation of a particular element is based on the API_BodyType structure. One element may hold one or more bodies to describe the 3D geometry. Generally, a body is built up from several vertices, edges, polygons, and normal vectors. This data structure gives you the number of internal components, some status bits, surface properties, and a global transformation matrix. You also get a reference to the parent element through an API_Elem_Head structure. You can get a body component just after you call ACAPI_ModelAccess_GetComponent with the appropriate body component. Then you can obtain edges, pgons, vertices etc. of that body. Use indices from 1 to nPgon, nPedg, nEdge, nVert, or nVect in the parameter of ACAPI_ModelAccess_GetComponent function to get a subcomponent. The status field specifies some properties of the body. You can use the bitwise-OR operator (|) to combine any of the following constants:

• APIBody_MulRtxt : more textures are referenced by its materials.
• APIBody_MulColor : more than one colors referenced by its edges.
• APIBody_MulMater : more than one materials referenced by its polygons.
• APIBody_Closed : its geometry is closed.
• APIBody_Curved : it has smooth polygons.