memoryLayer20160115230029581 memory?geometry=Point&crs=EPSG:4326&field=attr1:integer(3,0)&field=attr2:string(50,0) memoryLayer memoryLayer +proj=longlat +datum=WGS84 +no_defs 3452 4326 EPSG:4326 WGS 84 longlat WGS84 true memory COALESCE( "attr1", '<NULL>' ) 0 0 0 attr1 0 0 0 generatedlayout rgb256x25620160115225951554 ./rgb256x256.png rgb256x256 rgb256x256 +proj=longlat +datum=WGS84 +no_defs 3452 4326 EPSG:4326 WGS 84 longlat WGS84 true gdal 0