"I noticed that Text3D objects would change there z alignment depending on the alignment mode. I'm not sure if this was intentional or just a simple mistake. My expectation was that the front of the object would always stay aligned to the 0 z-plane, regardless of the alignment mode. I've attached an updated version that retains a consistent z-alignment."
"I just now noticed another issue with Text3D objects. It was not properly computing the bounding box when non-axis aligned rotations were being applied. In this case all corners of the bounding box need to be transformed in order to get the correct containing box. I've attached the updated file."
"The incorrect bounding box problem also applies to regular Text objects. I've attached the fix for that as well as the original Text3D fix."
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14296 16af8721-9629-0410-8352-f15c8da7e697
auto-rotated (e.g. HUD text) is not always correct, because it
doesn't take account of the base line offsets added by the
various alignment options such as CENTER_TOP, CENTER_BOTTOM etc.
The attached src/osgText/TextBase.cpp fixes the problem."
so doesn't have knowledge of screen space yet, so assume that scaling is 1 rather than 0 as was previously
assumed in the previous handling of screen space text.
behind osgText::Text. I made it so the box would get drawn using
whichever BackdropImplementation was selected. However, I did not
implement STENCIL_BUFFER. In that case it defaults to drawing the
bounding box using POLYGON_OFFSET instead.
Also made it so the BOUNDINGBOX and FILLEDBOUNDINGBOX are drawn with a
settable color and margin size.
While I was at it I tightened up the values applied with DEPTH_RANGE
and POLYGON_OFFSET, not just for drawing the bounding box but also for
drawing backdrop text (these values must be coupled since the bounding
box has to be drawn deeper in Z than the backdrop text). The values
in use before seemed like overkill and I was seeing some z-clipping
with my background scenery in the case of DEPTH_RANGE. If there was a
good reason for the large values please let me know...."
I found that changing the alignment of a text object does not work properly if the text contains newline characters. I've attached a simple test case that shows the problem. If I set the text AFTER setting the alignment, everything works fine. But if I set the text BEFORE setting the alignment then the text is displayed incorrectly.
The fix is very simple. Instead of calling computePositions() in TextBase::setAlignment(), it calls computeGlyphRepresentation(). I've attached the modified TextBase.cpp."
