I've been google'ing for a while now and having a little difficulty.
What I'm trying to do is annotate 3D geometry. It works fine
except that the alpha is not working properly.
These are the steps that I follow,
String sID = String.valueOf( ID );
BufferedImage bi = new
BufferedImage(20, 20,BufferedImage.TYPE_INT_ARGB);
Graphics2D g = bi.createGraphics();
FontRenderContext fontContext = g.getFontRenderContext();
Font f2d = g.getFont();
FontMetrics fm = g.getFontMetrics();
int A = fm.getMaxAscent();
int H = fm.getHeight();
int W = fm.stringWidth( sID );
g.drawString(sID, 0, A );
ImageComponent2D image = new ImageComponent2D(
ImageComponent.FORMAT_RGBA,
bi );
Raster rID = new Raster( ctr,
RASTER_COLOR,
0, 0, W, H,
image, null );
shape.addGeometry( rID );
My questions are:
1) the BufferedImage is ARGB and the ImageComponent2D is RGBA, what
is the result of this?
2) How do I figure out just the right size for BufferedImage from the String
sID?
I currently get the FontMetrics from the Graphics2D from the BufferedImage.
3) This works fine for the most part, I am using a black background for my
Java3D
scene, and the text of the annotation shows up with a black background,
except
the black background is repainted over the 3D geometry, instead of using an
alpha
which is what I prefer. How can I do this?
4) There is a lot of "imaging" stuff, Image, ImageProducer's, ImageConsumers,
BufferedImage,
Java2D Raster, Java3D Raster, etc... Are there any good tutorials/docs/books
that describe
integrating Java 2D into 3D?
Thanks for any help,
-DaveS
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