Hi Erno,
How do the proportions of the data compare to the window? It sounds like you are saying that the data fits horizontally in the map, but the top and bottom of the data are being clipped? I'm not sure what's going on.
It looks like you are doing things the right way. The NavMouseMode (and NavMouseMode2) are the best example of calling that getScale method, since they are zooming to the drawn window.
- Don
On Jan 7, 2013, at 8:33 AM, Erno Kuusela wrote:
> Hi
>
> I'm trying to scale my map to make it fit entirely inside the MapBean. I get the top left and bottom right corners from shape layer's getDataBounds() method, and the coordinates seem to make sense. However, the getScale() method in class ProjMath returns scale that fits the map only in the horizontal direction. My map is quite tall (its length is more than width), so most of the map gets clipped out.
>
> Here's the code I'm using:
>
> Projection proj = map.getProjection();
> DataBounds bounds = mainShapeLayer.getDataBounds();
> Point2D c1 = bounds.getMax();
> Point2D c2 = bounds.getMin();
> LatLonPoint topLeft = new LatLonPoint.Double( Math.max(c1.getY(), c2.getY()), Math.min(c1.getX(), c2.getX()) );
> LatLonPoint bottomRight = new LatLonPoint.Double( Math.min(c1.getY(), c2.getY()), Math.max(c1.getX(), c2.getX()) );
> float scale = com.bbn.openmap.proj.ProjMath.getScale( topLeft, bottomRight, proj );
> map.setScale( scale );
> map.setCenter( bounds.getCenter() );
>
> Am I doing something wrong here? I'm new to this stuff, so things seem to be quite confusing sometimes.
>
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Received on Thu Jan 10 2013 - 23:22:21 EST