Dane Springmeyer 0ec7ef6d46 renderers can now report to image if any features have been rendered via im.painted(), and im.background now uses boost optional to allow easy detection of whether a background has been set - closes #875		2011-09-11 06:24:26 +00:00
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mapnik	renderers can now report to image if any features have been rendered via im.painted(), and im.background now uses boost optional to allow easy detection of whether a background has been set - closes #875	2011-09-11 06:24:26 +00:00