/// <summary>
/// create new invert matrix
/// </summary>
/// <returns></returns>
public AffineMat CreateInvert()
{
AffineMat clone = this; //*** COPY by value
clone.Invert();
return(clone);
}
private Affine(AffinePlan[] creationPlans)
{
//-----------------------
//start with identity matrix
_elems = AffineMat.Iden;//copy
isIdenHint = true;
if (creationPlans == null)
{
return;
}
//-----------------------
int j = creationPlans.Length;
for (int i = 0; i < j; ++i)
{
AffinePlan plan = creationPlans[i];
switch (plan.cmd)
{
case AffineMatrixCommand.None:
break;
case AffineMatrixCommand.Rotate:
isIdenHint = false;
_elems.Rotate(plan.x);
break;
case AffineMatrixCommand.Scale:
isIdenHint = false;
_elems.Scale(plan.x, plan.y);
break;
case AffineMatrixCommand.Translate:
isIdenHint = false;
_elems.Translate(plan.x, plan.y);
break;
case AffineMatrixCommand.Skew:
isIdenHint = false;
_elems.Skew(plan.x, plan.y);
break;
case AffineMatrixCommand.Invert:
isIdenHint = false;
_elems.Invert();
break;
default:
throw new NotSupportedException();
}
}
}
private Affine(Affine copyFrom, AffinePlan creationPlan)
{
_elems = copyFrom._elems;
//-----------------------
switch (creationPlan.cmd)
{
default:
{
throw new NotSupportedException();
}
case AffineMatrixCommand.None:
_isIdenHint = copyFrom._isIdenHint;
break;
case AffineMatrixCommand.Rotate:
_isIdenHint = false;
_elems.Rotate(creationPlan.x);
break;
case AffineMatrixCommand.Scale:
_isIdenHint = false;
_elems.Scale(creationPlan.x, creationPlan.y);
break;
case AffineMatrixCommand.Skew:
_isIdenHint = false;
_elems.Skew(creationPlan.x, creationPlan.y);
break;
case AffineMatrixCommand.Translate:
_isIdenHint = false;
_elems.Translate(creationPlan.x, creationPlan.y);
break;
case AffineMatrixCommand.Invert:
_isIdenHint = false;
_elems.Invert();
break;
}
}
void BuildAff(ref AffinePlan plan)
{
switch (plan.cmd)
{
case AffineMatrixCommand.None:
break;
case AffineMatrixCommand.Rotate:
_isIdenHint = false;
_elems.Rotate(plan.x);
break;
case AffineMatrixCommand.Scale:
_isIdenHint = false;
_elems.Scale(plan.x, plan.y);
break;
case AffineMatrixCommand.Translate:
_isIdenHint = false;
_elems.Translate(plan.x, plan.y);
break;
case AffineMatrixCommand.Skew:
_isIdenHint = false;
_elems.Skew(plan.x, plan.y);
break;
case AffineMatrixCommand.Invert:
_isIdenHint = false;
_elems.Invert();
break;
default:
throw new NotSupportedException();
}
}