Adobe Extending Flash Professional CS5 - Manual (Page 74)

52 EXTENDING FLASH PROFESSIONAL
Contour object
Last updated 5/2/2011
contour.getHalfEdge()
Availability
Flash MX 2004.
Usage
contour.getHalfEdge()
Parameters
None.
Returns
A
HalfEdge object .
Description
Method; returns a
HalfEdge object on the contour of the selection.
Example
This example traverses all the contours of the selected shape and shows the coordinates of the vertices in the Output
panel:
// with a shape selected
var elt = fl.getDocumentDOM().selection[0];
elt.beginEdit();
var contourArray = elt.contours;
var contourCount = 0;
for (i=0;i<contourArray.length;i++)
{
var contour = contourArray[i];
contourCount++;
var he = contour.getHalfEdge();
var iStart = he.id;
var id = 0;
while (id != iStart)
{
// Get the next vertex.
var vrt = he.getVertex();
var x = vrt.x;
var y = vrt.y;
fl.trace("vrt: " + x + ", " + y);
he = he.getNext();
id = he.id;
}
}
elt.endEdit();