void BicubicPatch::Transform(const TRANSFORM *tr)
{
int i, j;
for (i = 0; i < 4; i++)
{
for (j = 0; j < 4; j++)
{
MTransPoint(Control_Points[i][j], Control_Points[i][j], tr);
}
}
Precompute_Patch_Values();
Compute_BBox();
}
void BicubicPatch::Scale(const Vector3d& Vector, const TRANSFORM *)
{
int i, j;
for (i = 0; i < 4; i++)
{
for (j = 0; j < 4; j++)
{
Control_Points[i][j] *= Vector;
}
}
Precompute_Patch_Values();
Compute_BBox();
}
static void Transform_Bicubic_Patch(OBJECT *Object, TRANSFORM *Trans)
{
int i, j;
BICUBIC_PATCH *Patch = (BICUBIC_PATCH *) Object;
for (i = 0; i < 4; i++)
{
for (j = 0; j < 4; j++)
{
MTransPoint(Patch->Control_Points[i][j], Patch->Control_Points[i][j], Trans);
}
}
Precompute_Patch_Values(Patch);
Compute_Bicubic_Patch_BBox(Patch);
}
static void Scale_Bicubic_Patch(OBJECT *Object, VECTOR Vector, TRANSFORM *)
{
int i, j;
BICUBIC_PATCH *Patch = (BICUBIC_PATCH *) Object;
for (i = 0; i < 4; i++)
{
for (j = 0; j < 4; j++)
{
VEvaluate(Patch->Control_Points[i][j], Patch->Control_Points[i][j], Vector);
}
}
Precompute_Patch_Values(Patch);
Compute_Bicubic_Patch_BBox(Patch);
}
static BICUBIC_PATCH *Copy_Bicubic_Patch(OBJECT *Object)
{
int i, j;
BICUBIC_PATCH *New;
int m, h;
New = Create_Bicubic_Patch();
/* Do not do *New = *Old so that Precompute works right */
New->Ph_Density = Object->Ph_Density;
New->Patch_Type = ((BICUBIC_PATCH *)Object)->Patch_Type;
New->U_Steps = ((BICUBIC_PATCH *)Object)->U_Steps;
New->V_Steps = ((BICUBIC_PATCH *)Object)->V_Steps;
if ( ((BICUBIC_PATCH *)Object)->Weights != NULL )
{
New->Weights = (WEIGHTS *)POV_MALLOC( sizeof(WEIGHTS),"bicubic patch" );
POV_MEMCPY( New->Weights, (((BICUBIC_PATCH *)Object)->Weights), sizeof(WEIGHTS) );
}
for (i = 0; i < 4; i++)
{
for (j = 0; j < 4; j++)
{
Assign_Vector(New->Control_Points[i][j], ((BICUBIC_PATCH *)Object)->Control_Points[i][j]);
}
}
New->Flatness_Value = ((BICUBIC_PATCH *)Object)->Flatness_Value;
Precompute_Patch_Values(New);
/* copy the mapping */
for (m = 0; m < 4; m++)
{
for (h = 0; h < 3; h++)
{
New->ST[m][h] = ((BICUBIC_PATCH *)Object)->ST[m][h];
}
}
return (New);
}