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Fix z-order issue when writing LAYER sections of the map file
git-svn-id: http://svn.osgeo.org/qgis/trunk@8381 c8812cc2-4d05-0410-92ff-de0c093fc19c
This commit is contained in:
gsherman
parent
1aa6315433
commit
0e439caae1
@ -16,6 +16,7 @@
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# All the work is done in the writeMapFile method. The msexport binary
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# presents a Qt based GUI that collects the needed information for this
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# script.
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# Matthew Perry contributed major portions of this work.
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#
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# CHANGES SHOULD NOT BE MADE TO THE writeMapFile METHOD UNLESS YOU
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# ARE CHANGING THE QgsMapserverExport CLASS AND YOU KNOW WHAT YOU ARE
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@ -266,34 +267,46 @@ class Qgis2Map:
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return (connString, dataString, filterString)
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# Write the map layers
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# Write the map layers - we have to defer writing to disk so we
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# can invert the order of the layes, since they are opposite in QGIS
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# compared to mapserver
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def writeMapLayers(self):
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# get the list of legend nodes so the layers can be written in the
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# proper order
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legend_nodes = self.qgs.getElementsByTagName("legendlayer")
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self.z_order = list()
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for legend_node in legend_nodes:
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self.z_order.append(legend_node.getAttribute("name").encode('utf-8').replace("\"", ""))
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# get the list of maplayer nodes
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maplayers = self.qgs.getElementsByTagName("maplayer")
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print "Processing ", len(maplayers), " layers"
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count = 0
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layer_list = dict()
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for lyr in maplayers:
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count += 1
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print "Processing layer ", count
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# The attributes of the maplayer tag contain the scale dependent settings,
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# visibility, and layer type
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self.outFile.write(" LAYER\n")
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# write the name of the layer
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layer_def = " LAYER\n"
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# store name of the layer
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layer_name = lyr.getElementsByTagName("layername")[0].childNodes[0].nodeValue.encode('utf-8').replace("\"", "")
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# first check to see if there is a name
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if len(lyr.getElementsByTagName("layername")[0].childNodes) > 0:
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self.outFile.write(" NAME '" + lyr.getElementsByTagName("layername")[0].childNodes[0].nodeValue.encode('utf-8').replace("\"", "") + "'\n")
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layer_def += " NAME '" + lyr.getElementsByTagName("layername")[0].childNodes[0].nodeValue.encode('utf-8').replace("\"", "") + "'\n"
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else:
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self.outFile.write(" NAME 'LAYER%s'\n" % count)
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# if no name for the layer, manufacture one
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layer_def += " NAME 'LAYER%s'\n" % count
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if lyr.getAttribute("type").encode('utf-8') == 'vector':
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self.outFile.write(" TYPE " + lyr.getAttribute("geometry").encode('utf-8').upper() + "\n")
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layer_def += " TYPE " + lyr.getAttribute("geometry").encode('utf-8').upper() + "\n"
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elif lyr.getAttribute("type").encode('utf-8') == 'raster':
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self.outFile.write(" TYPE " + lyr.getAttribute("type").encode('utf-8').upper() + "\n")
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layer_def += " TYPE " + lyr.getAttribute("type").encode('utf-8').upper() + "\n"
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# Set min/max scales
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if lyr.getAttribute('scaleBasedVisibilityFlag').encode('utf-8') == 1:
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self.outFile.write(" MINSCALE " + lyr.getAttribute('minScale').encode('utf-8') + "\n")
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self.outFile.write(" MAXSCALE " + lyr.getAttribute('maxScale').encode('utf-8') + "\n")
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layer_def += " MINSCALE " + lyr.getAttribute('minScale').encode('utf-8') + "\n"
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layer_def += " MAXSCALE " + lyr.getAttribute('maxScale').encode('utf-8') + "\n"
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# data
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dataString = lyr.getElementsByTagName("datasource")[0].childNodes[0].nodeValue.encode('utf-8')
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@ -309,16 +322,17 @@ class Qgis2Map:
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if providerString == 'postgres':
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# it's a postgis layer
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(pgConnString, sqlData, sqlFilter) = self.parsePostgisConnection(dataString)
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self.outFile.write(" CONNECTIONTYPE postgis\n")
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self.outFile.write(" CONNECTION '" + pgConnString + "'\n")
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self.outFile.write(" DATA '" + sqlData + "'\n")
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layer_def += " CONNECTIONTYPE postgis\n"
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layer_def += " CONNECTION '" + pgConnString + "'\n"
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layer_def += " DATA '" + sqlData + "'\n"
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# don't write the filter keyword if there isn't one
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if sqlFilter:
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self.outFile.write(" FILTER '" + sqlFilter + "'\n")
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layer_def += " FILTER '" + sqlFilter + "'\n"
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elif providerString == 'wms' and lyr.getAttribute("type").encode('utf-8').upper() == 'RASTER':
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# it's a WMS layer
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self.outFile.write(" CONNECTIONTYPE WMS\n")
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self.outFile.write(" CONNECTION '" + dataString + "'\n")
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layer_def += " CONNECTIONTYPE WMS\n"
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layer_def += " CONNECTION '" + dataString + "'\n"
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rasterProp = lyr.getElementsByTagName("rasterproperties")[0]
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# loop thru wmsSubLayers
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wmsSubLayers = rasterProp.getElementsByTagName('wmsSublayer')
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@ -332,57 +346,52 @@ class Qgis2Map:
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wmsStyles.append( '' )
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# Create necesssary wms metadata
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format = rasterProp.getElementsByTagName('wmsFormat')[0].childNodes[0].nodeValue.encode('utf-8')
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self.outFile.write(" METADATA\n")
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self.outFile.write(" 'wms_name' '" + ','.join(wmsNames) + "'\n")
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self.outFile.write(" 'wms_server_version' '1.1.1'\n")
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layer_def += " METADATA\n"
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layer_def += " 'wms_name' '" + ','.join(wmsNames) + "'\n"
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layer_def += " 'wms_server_version' '1.1.1'\n"
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try:
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ct = lyr.getElementsByTagName('coordinatetransform')[0]
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srs = ct.getElementsByTagName('sourcesrs')[0].getElementsByTagName('spatialrefsys')[0]
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epsg = srs.getElementsByTagName('epsg')[0].childNodes[0].nodeValue.encode('utf-8')
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self.outFile.write(" 'wms_srs' 'EPSG:4326 EPSG:" + epsg + "'\n")
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layer_def += " 'wms_srs' 'EPSG:4326 EPSG:" + epsg + "'\n"
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except:
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pass
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self.outFile.write(" 'wms_format' '" + format + "'\n")
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self.outFile.write(" 'wms_style' '" + ','.join(wmsStyles) + "'\n")
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self.outFile.write(" END\n")
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layer_def += " 'wms_format' '" + format + "'\n"
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layer_def += " 'wms_style' '" + ','.join(wmsStyles) + "'\n"
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layer_def += " END\n"
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else:
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# its a standard ogr, gdal or grass layer
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self.outFile.write(" DATA '" + dataString + "'\n")
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layer_def += " DATA '" + dataString + "'\n"
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# WMS settings for all layers
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self.outFile.write(" METADATA\n")
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if len(lyr.getElementsByTagName("layername")[0].childNodes) > 0:
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self.outFile.write(" 'wms_title' '"
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+ lyr.getElementsByTagName("layername")[0].childNodes[0].nodeValue.encode('utf-8').replace("\"", "") + "'\n")
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else:
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self.outFile.write(" 'wms_title' 'LAYER%s'\n" % count)
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layer_def += " METADATA\n"
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layer_def += " 'wms_title' '" + lyr.getElementsByTagName("layername")[0].childNodes[0].nodeValue.encode('utf-8').replace("\"", "") + "'\n"
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layer_def += " END\n"
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self.outFile.write(" END\n")
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self.outFile.write(" STATUS DEFAULT\n")
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layer_def += " STATUS DEFAULT\n"
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opacity = int ( 100.0 *
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float(lyr.getElementsByTagName("transparencyLevelInt")[0].childNodes[0].nodeValue.encode('utf-8')) / 255.0 )
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self.outFile.write(" TRANSPARENCY " + str(opacity) + "\n")
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layer_def += " TRANSPARENCY " + str(opacity) + "\n"
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self.outFile.write(" PROJECTION\n")
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layer_def += " PROJECTION\n"
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# Get the destination srs for this layer and use it to create
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# the projection section
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destsrs = self.qgs.getElementsByTagName("destinationsrs")[0]
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proj4Text = destsrs.getElementsByTagName("proj4")[0].childNodes[0].nodeValue.encode('utf-8')
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# the proj4 text string needs to be reformatted to make mapserver happy
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self.outFile.write(self.formatProj4(proj4Text))
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self.outFile.write(" END\n")
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layer_def += self.formatProj4(proj4Text)
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layer_def += " END\n"
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scaleDependent = lyr.getAttribute("scaleBasedVisibilityFlag").encode('utf-8')
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if scaleDependent == '1':
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# get the min and max scale settings
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minscale = lyr.getAttribute("minScale").encode('utf-8')
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maxscale = lyr.getAttribute("maxScale").encode('utf-8')
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if minscale > '':
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self.outFile.write(" MINSCALE " + minscale + "\n")
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layer_def += " MINSCALE " + minscale + "\n"
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if maxscale > '':
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self.outFile.write(" MAXSCALE " + maxscale + "\n")
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layer_def += " MAXSCALE " + maxscale + "\n"
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# Check for label field (ie LABELITEM) and label status
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@ -390,7 +399,7 @@ class Qgis2Map:
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labelOn = lyr.getElementsByTagName( "label")[0].childNodes[0].nodeValue.encode('utf-8')
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labelField = lyr.getElementsByTagName("labelfield")[0].childNodes[0].nodeValue.encode('utf-8')
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if labelField != '' and labelField is not None and labelOn == "1":
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self.outFile.write(" LABELITEM '" + labelField + "'\n");
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layer_def += " LABELITEM '" + labelField + "'\n"
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except:
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# no labels
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pass
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@ -399,16 +408,26 @@ class Qgis2Map:
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# First see if there is a single symbol renderer
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if lyr.getElementsByTagName("singlesymbol").length > 0:
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symbolNode = lyr.getElementsByTagName("singlesymbol")[0].getElementsByTagName('symbol')[0]
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self.simpleRenderer(lyr, symbolNode)
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layer_def += self.simpleRenderer(lyr, symbolNode)
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elif lyr.getElementsByTagName("graduatedsymbol").length > 0:
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self.graduatedRenderer(lyr, lyr.getElementsByTagName("graduatedsymbol")[0].getElementsByTagName('symbol')[0] )
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layer_def += self.graduatedRenderer(lyr, lyr.getElementsByTagName("graduatedsymbol")[0].getElementsByTagName('symbol')[0] )
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elif lyr.getElementsByTagName("continuoussymbol").length > 0:
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self.continuousRenderer(lyr, lyr.getElementsByTagName("continuoussymbol")[0] )
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layer_def += self.continuousRenderer(lyr, lyr.getElementsByTagName("continuoussymbol")[0] )
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elif lyr.getElementsByTagName("uniquevalue").length > 0:
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self.uniqueRenderer(lyr, lyr.getElementsByTagName("uniquevalue")[0].getElementsByTagName('symbol')[0] )
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layer_def += self.uniqueRenderer(lyr, lyr.getElementsByTagName("uniquevalue")[0].getElementsByTagName('symbol')[0] )
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# end of LAYER
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self.outFile.write(" END\n\n")
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layer_def += " END\n\n"
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# add the layer to the list
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layer_list[layer_name] = layer_def
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# all layers have been processed, reverse the list and write
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# not necessary since z-order is mapped by the legend list order
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self.z_order.reverse()
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for layer in self.z_order:
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self.outFile.write(layer_list[layer])
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# Simple renderer ouput
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@ -417,40 +436,31 @@ class Qgis2Map:
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# get the layers geometry type
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geometry = layerNode.getAttribute("geometry").encode('utf-8').upper()
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self.outFile.write(" CLASS\n")
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class_def = " CLASS\n"
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self.outFile.write(" NAME '"
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+ layerNode.getElementsByTagName("layername")[0].childNodes[0].nodeValue.encode('utf-8').replace("\"", "") + "' \n")
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class_def += " NAME '" + layerNode.getElementsByTagName("layername")[0].childNodes[0].nodeValue.encode('utf-8').replace("\"", "") + "' \n"
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self.outFile.write(" STYLE\n")
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class_def += " STYLE\n"
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# use the point symbol map to lookup the mapserver symbol type
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symbol = self.msSymbol( geometry, symbolNode )
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self.outFile.write(" SYMBOL " + symbol + " \n")
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self.outFile.write(" SIZE "
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+ symbolNode.getElementsByTagName('pointsize')[0].childNodes[0].nodeValue.encode('utf-8')
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+ " \n")
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class_def += " SYMBOL " + symbol + " \n"
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class_def += " SIZE " + symbolNode.getElementsByTagName('pointsize')[0].childNodes[0].nodeValue.encode('utf-8') + " \n"
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# outline color
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outlineNode = symbolNode.getElementsByTagName('outlinecolor')[0]
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self.outFile.write(" OUTLINECOLOR "
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+ outlineNode.getAttribute('red') + ' '
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+ outlineNode.getAttribute('green') + ' '
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+ outlineNode.getAttribute('blue')
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+ "\n")
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class_def += " OUTLINECOLOR " + outlineNode.getAttribute('red') + ' ' + outlineNode.getAttribute('green') + ' ' + outlineNode.getAttribute('blue') + "\n"
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# color
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colorNode = symbolNode.getElementsByTagName('fillcolor')[0]
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self.outFile.write(" COLOR "
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+ colorNode.getAttribute('red') + ' '
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+ colorNode.getAttribute('green') + ' '
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+ colorNode.getAttribute('blue')
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+ "\n")
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class_def += " COLOR " + colorNode.getAttribute('red') + ' ' + colorNode.getAttribute('green') + ' ' + colorNode.getAttribute('blue') + "\n"
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self.outFile.write(" END\n")
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class_def += " END\n"
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self.outFile.write( self.msLabel( layerNode ) )
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class_def += self.msLabel( layerNode )
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# end of CLASS
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self.outFile.write(" END\n")
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class_def += " END\n"
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return class_def
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# Graduated symbol renderer output
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@ -461,12 +471,12 @@ class Qgis2Map:
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# get the renderer field for building up the classes
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classField = layerNode.getElementsByTagName('classificationattribute')[0].childNodes[0].nodeValue.encode('utf-8')
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# write the render item
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self.outFile.write(" CLASSITEM '" + classField + "'\n")
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class_def = " CLASSITEM '" + classField + "'\n"
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# write the rendering info for each class
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classes = layerNode.getElementsByTagName('symbol')
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for cls in classes:
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self.outFile.write(" CLASS\n")
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class_def += " CLASS\n"
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lower = cls.getElementsByTagName('lowervalue')[0].childNodes[0].nodeValue.encode('utf-8')
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upper = cls.getElementsByTagName('uppervalue')[0].childNodes[0].nodeValue.encode('utf-8')
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@ -474,45 +484,36 @@ class Qgis2Map:
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# If there's a label use it, otherwise autogenerate one
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try:
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label = cls.getElementsByTagName('label')[0].childNodes[0].nodeValue.encode('utf-8')
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self.outFile.write(" NAME '" + label + "'\n")
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class_def += " NAME '" + label + "'\n"
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except:
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self.outFile.write(" NAME '" + lower + " < " + classField + " < " + upper + "'\n")
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class_def += " NAME '" + lower + " < " + classField + " < " + upper + "'\n"
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self.outFile.write(" EXPRESSION ( ([" + classField + "] >= " + lower
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+ ") AND ([" + classField + "] <= " + upper + ") )\n")
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class_def += " EXPRESSION ( ([" + classField + "] >= " + lower + ") AND ([" + classField + "] <= " + upper + ") )\n"
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self.outFile.write(" STYLE\n")
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class_def += " STYLE\n"
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symbol = self.msSymbol( geometry, symbolNode )
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self.outFile.write(" SYMBOL " + symbol + "\n")
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class_def += " SYMBOL " + symbol + "\n"
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# Symbol size
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if geometry == 'POINT' or geometry == 'LINE':
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self.outFile.write(" SIZE "
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+ cls.getElementsByTagName('pointsize')[0].childNodes[0].nodeValue.encode('utf-8')
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+ " \n")
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class_def += " SIZE " + cls.getElementsByTagName('pointsize')[0].childNodes[0].nodeValue.encode('utf-8') + " \n"
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# outline color
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outlineNode = cls.getElementsByTagName('outlinecolor')[0]
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self.outFile.write(" OUTLINECOLOR "
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+ outlineNode.getAttribute('red') + ' '
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+ outlineNode.getAttribute('green') + ' '
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+ outlineNode.getAttribute('blue')
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+ "\n")
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class_def += " OUTLINECOLOR " + outlineNode.getAttribute('red') + ' ' + outlineNode.getAttribute('green') + ' ' + outlineNode.getAttribute('blue') + "\n"
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# color
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colorNode = cls.getElementsByTagName('fillcolor')[0]
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self.outFile.write(" COLOR "
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+ colorNode.getAttribute('red') + ' '
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+ colorNode.getAttribute('green') + ' '
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+ colorNode.getAttribute('blue')
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+ "\n")
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class_def += " COLOR " + colorNode.getAttribute('red') + ' ' + colorNode.getAttribute('green') + ' ' + colorNode.getAttribute('blue') + "\n"
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self.outFile.write(" END\n")
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class_def += " END\n"
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# label
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self.outFile.write( self.msLabel( layerNode ) )
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class_def += self.msLabel( layerNode )
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# end of CLASS
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self.outFile.write(" END\n")
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class_def += " END\n"
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return class_def
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# Continuous symbol renderer output
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def continuousRenderer(self, layerNode, symbolNode):
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@ -523,7 +524,7 @@ class Qgis2Map:
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classField = layerNode.getElementsByTagName('classificationattribute')[0].childNodes[0].nodeValue.encode('utf-8')
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# write the rendering info for each class
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self.outFile.write(" CLASS\n")
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class_def += " CLASS\n"
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# Class name irrelevant for color ramps since mapserver can't render their legend
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#self.outFile.write(" NAME '" + classField + "'\n")
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@ -537,37 +538,28 @@ class Qgis2Map:
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# outline color
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outlineNode = lower.getElementsByTagName('outlinecolor')[0]
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self.outFile.write(" STYLE\n")
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class_def += " STYLE\n"
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# The first and last color of the ramp ( r g b r g b )
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self.outFile.write(" COLORRANGE "
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+ lowerColor.getAttribute('red') + " "
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+ lowerColor.getAttribute('green') + " "
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+ lowerColor.getAttribute('blue') + " "
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+ upperColor.getAttribute('red') + " "
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+ upperColor.getAttribute('green') + " "
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+ upperColor.getAttribute('blue') + "\n")
|
||||
class_def += " COLORRANGE " + lowerColor.getAttribute('red') + " " + lowerColor.getAttribute('green') + " " + lowerColor.getAttribute('blue') + " " + upperColor.getAttribute('red') + " " + upperColor.getAttribute('green') + " " + upperColor.getAttribute('blue') + "\n"
|
||||
|
||||
# The range of values over which to ramp the colors
|
||||
self.outFile.write(" DATARANGE "
|
||||
+ lower.getElementsByTagName('lowervalue')[0].childNodes[0].nodeValue.encode('utf-8') + ' '
|
||||
+ upper.getElementsByTagName('lowervalue')[0].childNodes[0].nodeValue.encode('utf-8') + '\n')
|
||||
class_def += " DATARANGE " + lower.getElementsByTagName('lowervalue')[0].childNodes[0].nodeValue.encode('utf-8') + ' ' + upper.getElementsByTagName('lowervalue')[0].childNodes[0].nodeValue.encode('utf-8') + '\n'
|
||||
|
||||
self.outFile.write(" RANGEITEM '" + classField + "'\n")
|
||||
self.outFile.write(" END\n")
|
||||
class_def += " RANGEITEM '" + classField + "'\n"
|
||||
class_def += " END\n"
|
||||
|
||||
self.outFile.write(" STYLE\n")
|
||||
self.outFile.write(" OUTLINECOLOR "
|
||||
+ outlineNode.getAttribute('red') + " "
|
||||
+ outlineNode.getAttribute('green') + " "
|
||||
+ outlineNode.getAttribute('blue') + "\n")
|
||||
self.outFile.write(" END\n")
|
||||
class_def += " STYLE\n"
|
||||
class_def += " OUTLINECOLOR " + outlineNode.getAttribute('red') + " " + outlineNode.getAttribute('green') + " " + outlineNode.getAttribute('blue') + "\n"
|
||||
class_def += " END\n"
|
||||
|
||||
# label
|
||||
self.outFile.write( self.msLabel( layerNode ))
|
||||
class_def += self.msLabel( layerNode )
|
||||
|
||||
# end of CLASS
|
||||
self.outFile.write(" END\n")
|
||||
class_def += " END\n"
|
||||
|
||||
return class_def
|
||||
|
||||
|
||||
# Unique value renderer output
|
||||
@ -579,12 +571,12 @@ class Qgis2Map:
|
||||
geometry = layerNode.getAttribute("geometry").encode('utf-8').upper()
|
||||
|
||||
# write the render item
|
||||
self.outFile.write(" CLASSITEM '" + classField + "'\n")
|
||||
class_def = " CLASSITEM '" + classField + "'\n"
|
||||
|
||||
# write the rendering info for each class
|
||||
classes = layerNode.getElementsByTagName('symbol')
|
||||
for cls in classes:
|
||||
self.outFile.write(" CLASS\n")
|
||||
class_def += " CLASS\n"
|
||||
|
||||
try:
|
||||
lower = cls.getElementsByTagName('lowervalue')[0].childNodes[0].nodeValue.encode('utf-8')
|
||||
@ -595,46 +587,48 @@ class Qgis2Map:
|
||||
# If there's a label use it, otherwise autogenerate one
|
||||
try:
|
||||
label = cls.getElementsByTagName('label')[0].childNodes[0].nodeValue.encode('utf-8')
|
||||
self.outFile.write(" NAME '" + label + "'\n")
|
||||
class_def += " NAME '" + label + "'\n"
|
||||
except:
|
||||
self.outFile.write(" NAME '" + classField + " = " + lower + "' \n")
|
||||
class_def += " NAME '" + classField + " = " + lower + "' \n"
|
||||
|
||||
self.outFile.write(" EXPRESSION '" + lower + "' \n")
|
||||
class_def += " EXPRESSION '" + lower + "' \n"
|
||||
|
||||
# Get the symbol name
|
||||
symbol = self.msSymbol( geometry, symbolNode )
|
||||
|
||||
self.outFile.write(" STYLE\n")
|
||||
self.outFile.write(" SYMBOL " + symbol + "\n")
|
||||
class_def += " STYLE\n"
|
||||
class_def += " SYMBOL " + symbol + "\n"
|
||||
|
||||
# Symbol size
|
||||
if geometry == 'POINT' or geometry == 'LINE':
|
||||
self.outFile.write(" SIZE "
|
||||
+ cls.getElementsByTagName('pointsize')[0].childNodes[0].nodeValue.encode('utf-8')
|
||||
+ " \n")
|
||||
class_def += " SIZE " \
|
||||
+ cls.getElementsByTagName('pointsize')[0].childNodes[0].nodeValue.encode('utf-8') \
|
||||
+ " \n"
|
||||
|
||||
# outline color
|
||||
outlineNode = cls.getElementsByTagName('outlinecolor')[0]
|
||||
self.outFile.write(" OUTLINECOLOR "
|
||||
+ outlineNode.getAttribute('red') + ' '
|
||||
+ outlineNode.getAttribute('green') + ' '
|
||||
+ outlineNode.getAttribute('blue')
|
||||
+ "\n")
|
||||
class_def += " OUTLINECOLOR " \
|
||||
+ outlineNode.getAttribute('red') + ' ' \
|
||||
+ outlineNode.getAttribute('green') + ' ' \
|
||||
+ outlineNode.getAttribute('blue') \
|
||||
+ "\n"
|
||||
|
||||
# color
|
||||
colorNode = cls.getElementsByTagName('fillcolor')[0]
|
||||
self.outFile.write(" COLOR "
|
||||
+ colorNode.getAttribute('red') + ' '
|
||||
+ colorNode.getAttribute('green') + ' '
|
||||
+ colorNode.getAttribute('blue')
|
||||
+ "\n")
|
||||
self.outFile.write(" END\n")
|
||||
class_def += " COLOR " \
|
||||
+ colorNode.getAttribute('red') + ' ' \
|
||||
+ colorNode.getAttribute('green') + ' ' \
|
||||
+ colorNode.getAttribute('blue') \
|
||||
+ "\n"
|
||||
class_def += " END\n"
|
||||
|
||||
# label
|
||||
self.outFile.write( self.msLabel( layerNode ))
|
||||
class_def += self.msLabel( layerNode )
|
||||
|
||||
# end of CLASS
|
||||
self.outFile.write(" END\n")
|
||||
class_def += " END\n"
|
||||
|
||||
return class_def
|
||||
|
||||
# Utility method to format a proj4 text string into mapserver format
|
||||
def formatProj4(self, proj4text):
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user