Один из вариантов:

Код:
function createShape():Shape
{
var shape:Shape = new Shape();
shape.graphics.beginFill(0x009900);
shape.graphics.moveTo(StartPoints[0],StartPoints[1]);
shape.graphics.lineTo(StartPoints[2],StartPoints[3]);
shape.graphics.lineTo(StartPoints[4],StartPoints[5]);
shape.graphics.lineTo(StartPoints[6],StartPoints[7]);
return shape;
}
T1Clip.addChild(createShape());
T2Clip.addChild(createShape());