Issue
Is there a way to place a shape (drawable or shape of any kind) that occupies a specific area in MapView (lat/lon area) not pixel area . I need that for GeoPoint Clustering purposes
If that is not possible any guidance to do it with projection coordinates would be greatly appreciated. But using the MapView canvas to do this doesn't seem performance-wise since i recycle my Overlay Items all the time and i wish i could take advantage of that too.
Solution
So the solution is to draw to the ItemizedOverlay that holds the items.
@Override
public void draw(Canvas canvas, MapView mapView, boolean shadow) {
super.draw(canvas, mapView, shadow);
// cycle through all overlays
for (int index = 0; index < mOverlays.size(); index++) {
OverlayItemExtended item = mOverlays.get(index);
// Converts lat/lng-Point to coordinates on the screen
GeoPoint point = item.getPoint();
Point ptScreenCoord = new Point();
mapView.getProjection().toPixels(point, ptScreenCoord);
Paint boxPaint = new Paint();
boxPaint.setColor(android.graphics.Color.WHITE);
boxPaint.setStyle(Paint.Style.FILL);
boxPaint.setAlpha(140);
canvas.drawCircle(ptScreenCoord.X, ptScreenCoord.y,
20, boxPaint);
}
}
Answered By - weakwire
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