This is the method for drawing circles:
private Canvas drawCircle(Canvas canvas, GeoPoint gp)
{
Point p = new Point();
_projection.toPixels(gp, p);
// Create gradient circle
int[] gradientColors = new int[]{Color.BLACK,Color.TRANSPARENT};
Shader gradientShader = new RadialGradient(p.x, p.y, _radius,
gradientColors, null, TileMode.CLAMP);
// Create and setup paint brush
Paint paint = new Paint();
paint.setAntiAlias(true);
paint.setShader(gradientShader); // Add gradient circle
canvas.drawPaint(paint);
return canvas;
}
It works ok, the only thing wrong is that the circles center is at
-344668x21990 and that is clearly not on the screen.
On 18 Nov., 16:04, Søren <[email protected]> wrote:
> But the toPixels is still wrong.
>
> What I'm doing is, I'm drawing lots of circles on a canvas, then I
> take the bitmap and recolours the circles as one blob. I then want to
> draw that bitmap to my overlay canvas.
>
> I can easily draw, but when I transform my GeoPoint to screenPoints I
> get the values stated in my second post:
>
> GeoPoint: 35908138x14500975
> Center of screen: -344668x21990
>
> And that's just wrong.
>
> On 18 Nov., 15:48, Nithin <[email protected]> wrote:
>
> > Hi,
>
> > u try like this..
>
> > Point p = new Point();
> > _mapView.getProjection().toPixels(_gp, p);
>
> > Then, in canvas.drawBitmap(), try like this...
>
> > canvas.drawBitmap(bmp, p.x, p.y, null);
>
> > Thanks
> > Nithin
>
> > On Nov 18, 6:50 pm, Søren <[email protected]> wrote:
>
> > > I think I'm getting there, but it seems like my projection isn't
> > > working. This is my onCreate-method in my MapActivity:
>
> > > public void onCreate(Bundle savedInstanceState)
> > > {
> > > super.onCreate(savedInstanceState);
> > > setContentView(R.layout.map);
>
> > > _mapView = (MapView)findViewById(R.id.mapView);
> > > _mapView.setBuiltInZoomControls(true);
>
> > > _mapController = _mapView.getController();
> > > double lat = 35.908138*1E6;
> > > double lng = 14.500975*1E6;
>
> > > _gp = new GeoPoint((int)lat,(int)lng);
> > > Point p = _mapView.getProjection().toPixels(_gp, null);
>
> > > // Add overlay
> > > _moodOverlay = new MoodOverlay();
> > > List<Overlay> overlays = _mapView.getOverlays();
> > > overlays.add(_moodOverlay);
>
> > > _mapController.animateTo(_gp);
> > > _mapController.setZoom(17);
>
> > > System.out.println("GeoPoint: " + _gp.getLatitudeE6() + "x" +
> > > _gp.getLongitudeE6());
> > > System.out.println("Center of screen: " + p.x + "x" + p.y);
> > > }
>
> > > The problem is that the toPixels is totally wrong. It print's the
> > > following:
>
> > > GeoPoint: 35908138x14500975
> > > Center of screen: -344668x21990
>
> > > What is wrong here?
>
>
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