(Cross-posted from StackOverflow:
http://stackoverflow.com/questions/4485587/drawing-text-on-a-bitmap-rather-than-canvas)
Hi,
I am drawing some text on a Canvas, and on a Bitmap, respectively:
protected void onDraw(Canvas canvas) {
canvas.drawText("Canvas text", 10, 10, mPaint);
Canvas singleUseCanvas = new Canvas();
singleUseCanvas.setBitmap(mBitmap);
singleUseCanvas.drawText("Bitmap text", 10, 30, mPaint);
}
In the former case, the text renders as you would expect, while in the
latter, it appears very rough and ugly. This becomes even more
problematic when using e.g.
canvas.drawBitmapMesh(...);
to apply transformations to the bitmap. Am I doing something wrong, or
is the quality simply deteriorated when you pass from Canvas to
Bitmap?
On a side note, the reason why I'm drawing text on a Bitmap is to
obtain a "magnifier" effect on the text in question (like Apple OSX's
dock), since I can then apply arbitrary transformations to it using a
bitmap mesh. Is there another, perhaps better, way to do this?
Best,
Michael
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