/**
* Create new instance
*
* @param type the type of shape.
* @param env the area that is visible. If shape is not in area then skip.
* @param mt the transform to go from data to the envelope (and that should be used to transform
* the shape coords)
* @param hasOpacity
*/
public MultiPointHandler(
ShapeType type, Envelope env, Rectangle screenSize, MathTransform mt, boolean hasOpacity)
throws TransformException {
if (mt == null) {
throw new NullPointerException();
}
this.type = type;
this.bbox = env;
this.mt = mt;
screenMap = GeometryHandlerUtilities.calculateScreenSize(screenSize, hasOpacity);
Point2D span = GeometryHandlerUtilities.calculateSpan(mt, 0, 0);
this.spanx = span.getX();
this.spany = span.getY();
}
