sharpetronics/QGIS
1
0
Fork 0
mirror of https://github.com/qgis/QGIS.git synced 2025-02-25 00:58:06 -05:00
Code Issues Packages Projects Releases Wiki Activity

More efficient clipping parameter (same as in threading branch)

Browse Source 
git-svn-id: http://svn.osgeo.org/qgis/trunk@14185 c8812cc2-4d05-0410-92ff-de0c093fc19c
This commit is contained in:
mhugent 2010-09-03 07:39:07 +00:00
parent fe9b709668
commit dc1c85fa38
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/core/qgsclipper.cpp
View File

@ -25,9 +25,13 @@
// But the static members must be initialised outside the class! (or GCC 4 dies)
const double QgsClipper::MAX_X = 30000;
const double QgsClipper::MIN_X = -30000;
const double QgsClipper::MAX_Y = 30000;
const double QgsClipper::MIN_Y = -30000;
// Qt also does clipping when the coordinates go over +/- 32767
// moreover from Qt 4.6, Qt clips also when the width/height of a painter path
// is more than 32767. Since we want to avoid clipping by Qt (because it is slow)
// we set coordinate limit to less than 32767 / 2
const double QgsClipper::MAX_X = 16000;
const double QgsClipper::MIN_X = -16000;
const double QgsClipper::MAX_Y = 16000;
const double QgsClipper::MIN_Y = -16000;
const double QgsClipper::SMALL_NUM = 1e-12;