Modeling

Detailed Description

Groups
	MODELING_COMMIT
	MODELING_ERROR
	MODELING_GETNGON_FLAG
	MODELING_SETNGON_FLAG
	MODELING_SETPOINT_FLAG
	TRANSMAP_FLAG
	TRANSMAP_PLYFLAG
	TRANSMAP_PNTFLAG

Classes
struct	PointMove
struct	TransIndexMapData
struct	TransMapData
struct	TransMapNewData
struct	TransPointInterData
struct	TransPointDeltaData
class	TranslationMaps
class	Modeling

Macros
#define	NOTINDEX
#define	LIBRARY_MODELLING

Typedefs
typedef Bool(*	TriangulateHook) (BaseObject *pObj, Int32 lNgonID, Ngon *ngon, const Vector *pvPoints, Int32 lPointCount, CPolygon *&pPolys, Int32 &lPolyCount, Bool &bTriang, void *pData)

Macro Definition Documentation

NOTINDEX

#define NOTINDEX

Invalid index.

LIBRARY_MODELLING

#define LIBRARY_MODELLING

Modeling library ID.

Typedef Documentation

TriangulateHook

typedef Bool(* TriangulateHook) (BaseObject *pObj, Int32 lNgonID, Ngon *ngon, const Vector *pvPoints, Int32 lPointCount, CPolygon *&pPolys, Int32 &lPolyCount, Bool &bTriang, void *pData)

Called to triangulate the N-gon in ngon, returning the result in pPolys.
Here is part of a trivial example of a triangulation algorithm that preserves quads:

#define AllocPolys(_p) lPolyCount = (_p); pPolys = (CPolygon*)NewMemClear((_p) * sizeof(CPolygon)); if (!pPolys) return false;
 
Bool MyTriangulate(BaseObject *pObj, Int32 lNgonID, Ngon *ngon, Vector *pvPoints, Int32 lPointCount, CPolygon *&pPolys, Int32 &lPolyCount, Bool &bTriang, void *pData)
{
  if (ngon->count == 3)
  {
    AllocPolys(1);
    pPolys[0] = CPolygon(0, 1, 2, 2);
    bTriang = true;
    return true;
  }
  else if (ngon->count == 4)
  {
    AllocPolys(1);
    pPolys[0] = CPolygon(0, 1, 2, 3);
    bTriang = true;
    return true;
  }
  else
  {
    ...
  }
}

Parameters

[in]	pObj	An initialized object.
[in]	lNgonID	The N-gon ID of ngon.
[in]	ngon	The N-gon to triangulate.
[in]	pvPoints	The points of pObj.
[in]	lPointCount	The array size of pvPoints.
[out]	pPolys	Always nullptr in the call. Assign the resulting triangulated polygon array here. It should be an array of CPolygon, allocated with NewMemClear(). The caller takes over the ownership of the pointed array.
[out]	lPolyCount	Assign the size of pPolys here.
[in]	bTriang	Assign true if ngon was triangulated, otherwise false.
[in]	pData	The private hook data, passed from Modeling::SetTriangulateHook().

Returns

true if successful, otherwise false.