Date: Fri, 28 Oct 2011 17:31:27 -0400
Hi Carsten,
Are you using center justification for the label? If you draw the poly
bounds (I think it shows if matting is turned on), do the bounds look right,
even for one character?
I thought polybounds took font and size into account, but now that you
mention it, I'm not sure if I've looked at it with one character, which
seems to be quite pertinent to you.
- Don
On Thu, Oct 27, 2011 at 10:01 AM, "Carsten Ø. Madsen" <com_at_navicon.dk>wrote:
> Hello
>
> I'm trying to implement clustering of locations a'la google maps marker
> clustering. But I'm having difficulties finding the exact center (xy) of the
> OMText which represents the clustering count. This causes a slight
> misalignment of the icons sitting behind the count.
>
> Here is my code from generate:
>
> label.generate(proj);
> label.prepareForRender(g);
> if (label.getPolyBounds() != null) {
> Rectangle rect = label.getPolyBounds().getBounds();
> rh = (int) ((float) (bounds.getHeight() - currentFontDescent /
> 2));
> rw = (int) rect.getWidth();
> int width = raster.getImage().getWidth(null);
> int height = raster.getImage().getHeight(null);
> raster.setRenderType(OMGraphicConstants.RENDERTYPE_XY);
> double cX = label.getMapLocation().getX() + rw / 2;
> double cY = label.getMapLocation().getY() + currentFontDescent
> / 2;
> raster.setX((int) (cX - width / 2));
> raster.setY((int) (cY - height / 2));
>
> I tried with getCenterX/Y on getPolyBounds but the result varies with the
> font size and length of the string being rendered. It seems to work best
> with string length > 1.
>
> I would like to use
>
> FontMetrics metrics = g.getFontMetrics();
> Rectangle2D rect = metrics.getStringBounds(text, g);
>
> but I guess this does not work with OMText and the way it does text
> rendering.
>
> Any hints?
>
> Thanks
> Carsten
>
>
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