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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link=blue vlink=purple style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal align=left style='margin-bottom:12.0pt;text-align:left;line-height:13.5pt;vertical-align:baseline'><span lang=EN-US style='font-family:"Helvetica","sans-serif";color:#333333'>Hi all,<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-bottom:12.0pt;text-align:left;line-height:13.5pt;vertical-align:baseline'><span lang=EN-US style='font-family:"Helvetica","sans-serif";color:#333333'>I'm using QGIS-2.4.0 to developing an application.<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-bottom:12.0pt;text-align:left;line-height:13.5pt;vertical-align:baseline'><span lang=EN-US style='font-family:"Helvetica","sans-serif";color:#333333'>I created my own custom MapCanvasItem for showing SVG. It is great to load a SVG from symbol library that QGIS provides(such as d:\QGIS Chugiak\apps\qgis\svg\symbol\poi_cave.svg), or a SVG file that QGIS Composer exports.<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-bottom:12.0pt;text-align:left;line-height:13.5pt;vertical-align:baseline'><span lang=EN-US style='font-family:"Helvetica","sans-serif";color:#333333'>But when I created a SVG using Adobe Illustrator or Inkscape on my own, the application broke down to loading a SVG. I tested the SVG file created by Illustrator/Inkscape, it is well to display in QT project when I create a class Inheritanced from QgraphicsItem.<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-bottom:12.0pt;text-align:left;line-height:13.5pt;vertical-align:baseline'><span lang=EN-US style='font-family:"Helvetica","sans-serif";color:#333333'>I don't know why, Can anyone help me? Here is my code to rewrite the function from QgsMapCanvasItem:<o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left;line-height:13.5pt;background:#EEEEEE;vertical-align:baseline'><span lang=EN-US style='font-size:9.0pt;font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE'>void TFMapCanvasSvgItem::paint(QPainter* painter)<o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left;line-height:13.5pt;background:#EEEEEE;vertical-align:baseline'><span lang=EN-US style='font-size:9.0pt;font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE'>{ <o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left;line-height:13.5pt;background:#EEEEEE;vertical-align:baseline'><span lang=EN-US style='font-size:9.0pt;font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE'> if (!painter)<o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left;line-height:13.5pt;background:#EEEEEE;vertical-align:baseline'><span lang=EN-US style='font-size:9.0pt;font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE'> {<o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left;line-height:13.5pt;background:#EEEEEE;vertical-align:baseline'><span lang=EN-US style='font-size:9.0pt;font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE'> return;<o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left;line-height:13.5pt;background:#EEEEEE;vertical-align:baseline'><span lang=EN-US style='font-size:9.0pt;font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE'> }<o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left;line-height:13.5pt;background:#EEEEEE;vertical-align:baseline'><span lang=EN-US style='font-size:9.0pt;font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE'> QImage svgImage(50, 40, QImage::Format_ARGB32);<o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left;line-height:13.5pt;background:#EEEEEE;vertical-align:baseline'><span lang=EN-US style='font-size:9.0pt;font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE'> QPainter imagePainter(&svgImage);<o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left;line-height:13.5pt;background:#EEEEEE;vertical-align:baseline'><span lang=EN-US style='font-size:9.0pt;font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE'> mSvgRenderer.render(&imagePainter);<o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left;line-height:13.5pt;background:#EEEEEE;vertical-align:baseline'><span lang=EN-US style='font-size:9.0pt;font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE'> painter->drawImage(QRect(0, 0, 100, 80), svgImage, QRect(0, 0, 100, 80));<o:p></o:p></span></p><p class=MsoNormal align=left style='text-align:left;line-height:13.5pt;background:#EEEEEE;vertical-align:baseline'><span lang=EN-US style='font-size:9.0pt;font-family:Consolas;color:#222222;border:none windowtext 1.0pt;padding:0cm;background:#EEEEEE'>} <o:p></o:p></span></p><p class=MsoNormal align=left style='margin-bottom:12.0pt;text-align:left;line-height:13.5pt;vertical-align:baseline'><span lang=EN-US style='font-family:"Helvetica","sans-serif";color:#333333'><o:p> </o:p></span></p><p class=MsoNormal align=left style='margin-bottom:12.0pt;text-align:left;line-height:13.5pt;vertical-align:baseline'><span lang=EN-US style='font-family:"Helvetica","sans-serif";color:#333333'>The SVG symbol created by Illustrator/Inkscape couldn't be used in QGIS API application, but could be used in QGIS release software(such as Symbol selector, SVG annotation), as showed in 1.PNG, 2.PNG.<o:p></o:p></span></p><p class=MsoNormal align=left style='margin-bottom:12.0pt;text-align:left;line-height:13.5pt;vertical-align:baseline'><span lang=EN-US style='font-family:"Helvetica","sans-serif";color:#333333'>Any advice appreciated!<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt'>Bob<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>