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My coworkers and I were all having this problem in versions of QGIS that range from 2.6.1 to the new 2.14. The solution we worked out is to run: Vector > Geometry Tools > Multiparts to Singlepart... The new shapefile produced will now render at all zoom levels. I believe the issue is that the old shapefile had an incorrect ring order (presuming your file ...


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Things may be different from when you posted this originally. With current Mapnik versions (3.0.10 for example), this should work: <Style name="cities" filter-mode="first"> <Rule> <MarkersSymbolizer width="50" fill="#ff4455" stroke="#881133" allow-overlap="true" ignore-placement="true" /> </Rule> </Style> <Layer ...


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I have done a similar stuff, mine does work. Check it out. It is for 2.14 qgis. If you are locked you should probably check http://docs.qgis.org/2.2/en/docs/pyqgis_developer_cookbook/raster.html (see the version number on the link) from PyQt4.QtCore import QSize from PyQt4.QtGui import QPainter, QImage, QColor from PyQt4.QtCore import QFileInfo from ...



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