// This returns getPoints() bend/wrapped around the contour of a path.
// Read http://www.planetclegg.com/projects/WarpingTextToSplines.html
List <Vector3> getWrapPoints(List <Vector3> oldPts, Curve path)
{
BoundingBox bounds = this.getBoundingBox();
int i, il;
Vector3 p;
float oldX, oldY, xNorm;
for (i = 0, il = oldPts.Count; i < il; i++)
{
p = oldPts [i];
oldX = p.x;
oldY = p.y;
xNorm = oldX / bounds.maxX;
// If using actual distance, for length > path, requires line extrusions
//xNorm = path.getUtoTmapping(xNorm, oldX); // 3 styles. 1) wrap stretched. 2) wrap stretch by arc length 3) warp by actual distance
xNorm = path.getUtoTmapping(xNorm, oldX);
// check for out of bounds?
Vector3 pathPt = path.getPoint(xNorm);
Vector3 normal = path.getTangent(xNorm);
//normal.set( -normal.y, normal.x ).multiplyScalar( oldY );
normal.x = -normal.y;
normal.y = normal.x;
normal *= oldY;
p.x = pathPt.x + normal.x;
p.y = pathPt.y + normal.y;
}
return(oldPts);
}
// This returns getPoints() bend/wrapped around the contour of a path.
// Read http://www.planetclegg.com/projects/WarpingTextToSplines.html
List<Vector3> getWrapPoints(List<Vector3> oldPts, Curve path)
{
BoundingBox bounds = this.getBoundingBox ();
int i, il;
Vector3 p;
float oldX, oldY, xNorm;
for (i = 0, il = oldPts.Count; i < il; i ++) {
p = oldPts [i];
oldX = p.x;
oldY = p.y;
xNorm = oldX / bounds.maxX;
// If using actual distance, for length > path, requires line extrusions
//xNorm = path.getUtoTmapping(xNorm, oldX); // 3 styles. 1) wrap stretched. 2) wrap stretch by arc length 3) warp by actual distance
xNorm = path.getUtoTmapping (xNorm, oldX);
// check for out of bounds?
Vector3 pathPt = path.getPoint (xNorm);
Vector3 normal = path.getTangent (xNorm);
//normal.set( -normal.y, normal.x ).multiplyScalar( oldY );
normal.x = -normal.y;
normal.y = normal.x;
normal *= oldY;
p.x = pathPt.x + normal.x;
p.y = pathPt.y + normal.y;
}
return oldPts;
}