### I create a custom circle graphic :
[PHP]
public class CircleGraphic extends Graphic {
private CircleGraphic(Geometry geometry, Symbol symbol) {
super(geometry, symbol);
}
public static CircleGraphic getInstance(Point center, int size, int color) {
Geometry geometry = getCircleGeometry(center, size);
SimpleLineSymbol symbol = new SimpleLineSymbol(color, 3, SimpleLineSymbol.STYLE.SOLID);
return new CircleGraphic(geometry, symbol);
}
public static Geometry getCircleGeometry(Point center, int size) {
......
}
}
[/PHP]
### Then I add this CircleGraphic to GraphicsLayer:
[PHP]
CircleGraphic circle = CircleGraphic.getInstance(point, size, color);
GraphicsLayer.addGraphic(circle);
[/PHP]
### But I can't get the CircleGraphic from the GraphicsLayer again:
[PHP]
int[] ids = GraphicsLayer.getGraphicIDs();
for (int i = 0; i < ids.length; i++) {
int id = ids;
Graphic g = getGraphic(id);
if (g instanceof CircleGraphic) {
...... // can't reach here!! Why?? It should be a CircleGraphic!!
}
CircleGraphic circle = (CircleGraphic)getGraphic(id); //raise type casting error... Why??
}
[/PHP]
Thanks for your help .
