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http://www.openoffice.org/issues/show_bug.cgi?id=99662
User aw changed the following:
What |Old value |New value
================================================================================
Status|NEW |STARTED
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------- Additional comments from a...@openoffice.org Thu Mar 19 16:47:02 +0000
2009 -------
AW: After discussing with IHA and showing what AA normally does, we identified
two reasons for bad looking:
(1) The grid lines are not regularly AAed since they are displayed on different
positions on the discrete raster
(2) The deactivated OLE chart looks slightly different since the MetaFile
containing the 3D bitmap is visluslized slighly zoomed.
For (1): Added support for the SnapHorVerGridLines configuration flag (same as
for 2D) to snap hor/ver grid lines to centered raster positions. Really snapping
them to single pixel lines did not look to good and showed problems with those
lines vanishing sometimes (no surprise; those lines are now forced to smaller
polygons, especially compared with the extended, AAed areas). Best looking
solution is to snap those lines in 3D to center of grid to force them to be
regularly AAed (same as our competitot does). This is also an acceptable
enhancement for all other 3D.
For (2): IHA was investigating one day to again look for the precision error
involved in usage of many system layers (chart, framework, etc...) which leads
to different display sizes bewteen activated and non-activated charts. Too
complex, had to stop now. I investigated this issue on visualisation side and
added code to primitive renderers to ignore single pixel errors (which result
from lacking precision from layers described above). This works well and leads
to unscaled MetaFile visualisation.
All in all these two changes enhance 3D visualisation greatly for charts and
should be considered a candidate for 3.1. Checking in at aw066 and building
install-sets.
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