<html><head></head><body lang="en-US" style="background-color: rgb(255, 255, 255); line-height: initial;"> <div style="width: 100%; font-size: initial; font-family: Calibri, 'Slate Pro', sans-serif, sans-serif; color: rgb(31, 73, 125); text-align: initial; background-color: rgb(255, 255, 255);"><span style="line-height: initial;">if try get </span><b style="line-height: initial;">scale map, coordinate mouse </b><span style="line-height: initial;">(lon, lat) but wrong value. my code:</span></div><div id="_originalContent" style=""><div dir="ltr"><div><br></div><div><b><i>def init.....</i></b></div><div><b><i>........</i></b></div><div><div> self.canvas.useImageToRender(False)</div><div> self.canvas.setWheelAction(0,1.5)</div><div> self.canvas.MinScale = 50000000</div><div> self.canvas.MaxScale = 500000</div><div> self.canvas.setCanvasColor(QColor('#484848'))</div><div> self.canvas.setContextMenuPolicy(Qt.CustomContextMenu)</div><div> self.canvas.mapRenderer().setProjectionsEnabled(True)</div><div> </div><div> self.crs = QgsCoordinateReferenceSystem()</div><div> self.crs.createFromProj4("+proj=lcc +lat_1=15 +lat_2=45 +lat_0=30 +lon_0=107 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs")</div><div> self.canvas.setDestinationCrs(self.crs) </div><div> self.canvas.mapRenderer().setDestinationCrs(self.crs) </div><div> self.canvas.setMapUnits(5)</div></div><div> self.canvas.scaleChanged.connect(self.scaletitle)<br></div><div>........</div><div><b><i>def load layer</i></b></div><div><b><i><br></i></b></div><div><div> self.layers = []</div><div> self.cur_dir = os.path.dirname(os.path.realpath(__file__))</div><div> #------------------------------------------------------------- </div><div> self.layerfilename = os.path.join(self.cur_dir,dataLayer_Tinh[8])</div><div> self.layer = QgsVectorLayer(self.layerfilename, dataLayer_Tinh[1], "ogr")</div><div> self.layer.setCrs(self.crs)</div><div> QgsMapLayerRegistry.instance().addMapLayer(self.layer)</div><div> self.layer_Tinh = QgsMapCanvasLayer(self.layer)</div><div> #------------------------------------------------------------- </div><div> self.layerfilename = os.path.join(self.cur_dir,dataLayer_Kinhvi[8])</div><div> self.layer = QgsVectorLayer(self.layerfilename, dataLayer_Kinhvi[1], "ogr")</div><div> self.layer.setCrs(self.crs)</div><div> QgsMapLayerRegistry.instance().addMapLayer(self.layer)</div><div> self.layer_Kinhvi = QgsMapCanvasLayer(self.layer)</div></div><div><br></div><div><div> self.canvas.setLayerSet(self.layers) </div><div> self.canvas.setExtent(self.layer.extent())</div><div><br></div><div><div><b>def scaletitle(self):</b></div><div> print self.canvas.scale() </div><div> self.label_44.setText(str(self.canvas.scale()))</div></div><div><br></div></div><div><i>And result scale:</i></div><div><div><i>3.25806053965e+13</i></div><div><i>2.63002028251e+13</i></div><div><i>1.63293972509e+13</i></div><div><i>6.74310162649e+12</i></div><div><i>2.53595988062e+12</i></div><div><i>4.48356555003e+12</i></div></div><div><b><i><br></i></b></div><div><b>
<em style="margin:0px;padding:0px;border:0px;font-style:italic;font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:inherit;font-variant-east-asian:inherit;font-stretch:inherit;font-size:15px;line-height:inherit;font-family:Georgia,"Times New Roman",Times,serif;vertical-align:baseline;box-sizing:inherit;color:rgb(51,51,51);letter-spacing:normal;text-align:left;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(252,250,243);text-decoration-style:initial;text-decoration-color:initial">Thanks for <strong style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-stretch:inherit;font-size:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline;box-sizing:inherit">helping</strong> me</em>
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