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http://www.openoffice.org/issues/show_bug.cgi?id=73290
User aw changed the following:
What |Old value |New value
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Assigned to|aw |thb
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------- Additional comments from [EMAIL PROTECTED] Wed Jan 10 03:37:12 -0800
2007 -------
AW: I took a look. In vcl'Äs OutputDevice::DrawHatch(), all is put to discrete
pixels and MapMode switched off, then ImplDrawHatch is used. There,
ImplDrawHatchLine is used to do the clipping of hatch lines against the given
polygon.
AW: I guess, since this is all in discrete pixels, the clipped points will just
'jump' around one pixel more/less sometimes, so the pixel line does not really
keep the 45 degrees. If You zoom into the attachment it can be seen that it's
not a fat line but that the 2nd part of the hatch line is 'unluckily' placed so
that 4 neighboured pixels build a 'fat' pixel.
AW->THB: There are two solutions:
(1) wait for primitives where preps will be done on double precision on ligic
coordinates
(2) correct x/y aspect of clipped line in ImplDrawHatchLine when angle is a
multiple of 45 to equal integer distance in X and Y
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