@UiHandler("polyBtn")
public void onPolyBtnClicked(ClickEvent event) {
if (container != null) {
container.clear();
List<CanvasShape> shapes = new ArrayList<CanvasShape>();
double factor = Math.pow(count, -0.5);
for (int i = 0; i < count; i++) {
double x1 = (Random.nextDouble() - 0.5) * (TOTAL_SIZE - SHAPE_SIZE * factor);
double y1 = (Random.nextDouble() - 0.5) * (TOTAL_SIZE - SHAPE_SIZE * factor);
double x2 = x1 + (Random.nextDouble() - 0.5) * SHAPE_SIZE * factor;
double y2 = y1 + (Random.nextDouble() - 0.5) * SHAPE_SIZE * factor;
double x3 = x1 + (Random.nextDouble() - 0.5) * SHAPE_SIZE * factor;
double y3 = y1 + (Random.nextDouble() - 0.5) * SHAPE_SIZE * factor;
Coordinate[] coords =
new Coordinate[] {
new Coordinate(x1, y1),
new Coordinate(x2, y2),
new Coordinate(x3, y3),
new Coordinate(x1, y1)
};
Geometry ring = new Geometry(Geometry.LINEAR_RING, 0, 5);
ring.setCoordinates(coords);
Geometry poly = new Geometry(Geometry.POLYGON, 0, 5);
poly.setGeometries(new Geometry[] {ring});
CanvasPath path = new CanvasPath(poly);
path.setFillStyle(getRandomRGB(0.5));
path.setStrokeStyle(getRandomRGB(1));
shapes.add(path);
}
container.addAll(shapes);
container.repaint();
}
}
private void calculate(final GeometryArrayFunction callback) {
geometry.setPrecision(-1);
splitLine.setPrecision(-1);
GeometrySplitRequest request = new GeometrySplitRequest(geometry, splitLine);
GwtCommand command = new GwtCommand(GeometrySplitRequest.COMMAND);
command.setCommandRequest(request);
GwtCommandDispatcher.getInstance()
.execute(
command,
new AbstractCommandCallback<GeometrySplitResponse>() {
public void execute(GeometrySplitResponse response) {
callback.execute(
response
.getGeometries()
.toArray(new Geometry[response.getGeometries().size()]));
}
});
}