// transform mapping from one placement to another
void CMappingDefinition::Transform(const FLOATplane3D &plSourcePlane,
const CPlacement3D &plSource, const CPlacement3D &plTarget)
{
CSimpleProjection3D_DOUBLE prProjection;
prProjection.ObjectPlacementL() = plSource;
prProjection.ViewerPlacementL() = plTarget;
prProjection.Prepare();
CMappingDefinition mdTarget;
prProjection.ProjectMapping(*this, FLOATtoDOUBLE(plSourcePlane), mdTarget);
*this = mdTarget;
}
/*
* Copy selected sectors of a source brush to a 3D object.
*/
void CWorld::CopySourceBrushSectorsToObject(
CEntity &enBrush,
CBrushSectorSelectionForCSG &bscselSectors,
const CPlacement3D &plSourcePlacement,
CObject3D &obObject,
const CPlacement3D &plTargetPlacement,
DOUBLEaabbox3D &boxSourceAbsolute
)
{
ASSERT(GetFPUPrecision()==FPT_53BIT);
// get the brush mip from the entity
CBrushMip &bmBrushMip = *GetBrushMip(enBrush);
// calculate placement of the brush in absolute space (taking relative
// world placement and entity placement in account)
CPlacement3D plBrush = enBrush.en_plPlacement;
plBrush.RelativeToAbsolute(plSourcePlacement);
// copy selected sectors of brush to object3d object
bmBrushMip.ToObject3D(obObject, bscselSectors);
// make a copy of the object and find its box in absolute space
CObject3D obAbsolute;
obAbsolute = obObject;
CSimpleProjection3D_DOUBLE prToAbsolute;
prToAbsolute.ObjectPlacementL() = plBrush;
prToAbsolute.ViewerPlacementL() = CPlacement3D(FLOAT3D(0,0,0), ANGLE3D(0,0,0));
prToAbsolute.Prepare();
obAbsolute.Project(prToAbsolute);
obAbsolute.GetBoundingBox(boxSourceAbsolute);
// project the brush into target space
CSimpleProjection3D_DOUBLE prSimple;
prSimple.ObjectPlacementL() = plBrush;
prSimple.ViewerPlacementL() = plTargetPlacement;
prSimple.Prepare();
obObject.Project(prSimple);
}