Re: [Qgis-user] Convert symbology of qgis layer into PyQGIS code to define renderer
Olá Manuel, First save the style (using the GUI or using PyQGIS) as a qml file. To apply the style to another layer (use the Python console to test the code): 1) Select the other layer you want to apply the style 2) Run the PyQGIS code: l = iface.activeLayer() l.loadNamedStyle('/home/manuel/awesome.qml') l.triggerRepaint() Good luck! Gustavo On 11/06/21 14:58, Manuel Campagnolo wrote: > Olá Gustavo > > How do I apply the named style afterwards in PyQGIS from the style qml > file as the example below? > > Thanks again > > Manuel > > http://mrcc.com/qgis.dtd' 'SYSTEM'> > simplifyDrawingTol="1" simplifyDrawingHints="1" simplifyAlgorithm="0" > version="3.18.1-Zürich" readOnly="0" hasScaleBasedVisibilityFlag="0" > minScale="1" maxScale="0" styleCategories="AllStyleCategories"> > > 1 > 1 > 1 > 0 > > fixedDuration="0" startField="" mode="0" durationField="" > accumulate="0" endField="" endExpression=""> > > > > > > symbollevels="0" type="categorizedSymbol"> > > > > > > type="fill"> > > > > > > > > > > name="border_width_map_unit_scale" type="QString"/> > > > > name="offset_map_unit_scale" type="QString"/> > > > [...] > > > On 11/06/2021 14:41, Jorge Gustavo Rocha wrote: >> Olá Manuel, >> >> There is no way to get the PyQGIS code from the style, as far as I know. >> >> But you can save the style (using the native QGIS format) and apply the >> named style afterwards in PyQGIS easily. Is this alternative workflow >> suitable for you? >> >> Regards, >> >> Gustavo >> >> On 11/06/21 12:56, Manuel Campagnolo wrote: >>> Hi >>> >>> Do you know of a way of using the style of a ,say, vector layer in >>> QGIS3 to create automatically the python code that would generate it, >>> namely the QgsSymbol part in the code below. >>> >>> Thanks >>> >>> >>> symbol1=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) >>> symbol2=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) >>> symbol3=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) >>> symbol4=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) >>> symbol5=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) >>> >>> symbol1.setColor(QColor('black')) >>> symbol2.setColor(QColor('gray')) >>> symbol3.setColor(QColor('dark green')) >>> symbol4.setColor(QColor('light green')) >>> symbol5.setColor(QColor('orange')) >>> >>> cat1=QgsRendererCategory('Improdutivos', symbol1, 'Improdutivos') # >>> category, symbol, label >>> cat2=QgsRendererCategory('Urbano', symbol2, 'Urbano') >>> cat3=QgsRendererCategory('Matos e Pastagens', symbol3, 'Matos e >>> Pastagens') >>> cat4=QgsRendererCategory('Floresta', symbol4, 'Floresta') >>> cat5=QgsRendererCategory('Agricultura', symbol5, 'Agricultura') >>> categories=[cat1,cat2,cat3,cat4,cat5] # list >>> >>> renderer = QgsCategorizedSymbolRenderer('usosolo', categories) >>> ifn_ppsm.setRenderer(renderer) >>> >>> ___ >>> Qgis-user mailing list >>> Qgis-user@lists.osgeo.org >>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user >>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user >> ___ >> Qgis-user mailing list >> Qgis-user@lists.osgeo.org >> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user >> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Convert symbology of qgis layer into PyQGIS code to define renderer
Hi, As far as I know symbology is tight to the topology. Here is a simple example for lines. mlayer = qgis.utils.iface.activeLayer() styles = {'width': '0.5', 'color': 'yellow', 'penstyle': 'solid'} registry = qgis.core.QgsSymbolLayerV2Registry.instance() symbol = qgis.core.QgsSymbolV2.defaultSymbol(mlayer.geometryType()) lineLayer = lineMeta.createSymbolLayer(styles) symbol.deleteSymbolLayer(0) symbol.appendSymbolLayer(lineLayer) renderer = qgis.core.QgsSingleSymbolRendererV2(symbol) mlayer.setRendererV2(renderer) mlayer.triggerRepaint() qgis.utils.iface.mapCanvas().refresh() For points styles = {'name': 'diamond', 'color': 'yellow', 'size': '2'} pointSymbol = qgis.core.QgsMarkerSymbolV2.createSimple(styles) mlayer.rendererV2().setSymbol(pointSymbol) qgis.utils.iface.mapCanvas().refresh() mlayer.triggerRepaint() for polygons symbol.setColor(QtGui.QColor("blue")) registry = QgsSymbolLayerV2Registry.instance() lineMeta = registry.symbolLayerMetadata("SimpleLine") lineLayer = lineMeta.createSymbolLayer({'width': '0.8', 'color': 'blue', 'offset': '0', 'penstyle': 'solid'}) symbol.appendSymbolLayer(lineLayer) symbol.setAlpha(0.2) renderer = QgsRuleBasedRendererV2(symbol) vLayer.setRendererV2(renderer) vLayer.setLayerTransparency(0) vLayer.triggerRepaint() This when you want to have static symbols. QGIS also gives the capability of creating dynamic symbols -Original Message- From: Qgis-user On Behalf Of Manuel Campagnolo Sent: June 11, 2021 7:56 AM To: qgis-user@lists.osgeo.org Subject: [EXT] [Qgis-user] Convert symbology of qgis layer into PyQGIS code to define renderer CAUTION: This email originated from outside of the organization. If you do not recognize the sender or you are not certain the content is safe, then do not click on any links or open any attachments. AVERTISSEMENT : Ce courriel provient d’une source externe à l’organisation. Si vous ne reconnaissez pas l’expéditeur ou si vous doutez de la sécurité du contenu, ne cliquez sur aucun lien et n’ouvrez aucune pièce jointe. Hi Do you know of a way of using the style of a ,say, vector layer in QGIS3 to create automatically the python code that would generate it, namely the QgsSymbol part in the code below. Thanks symbol1=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol2=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol3=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol4=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol5=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol1.setColor(QColor('black')) symbol2.setColor(QColor('gray')) symbol3.setColor(QColor('dark green')) symbol4.setColor(QColor('light green')) symbol5.setColor(QColor('orange')) cat1=QgsRendererCategory('Improdutivos', symbol1, 'Improdutivos') # category, symbol, label cat2=QgsRendererCategory('Urbano', symbol2, 'Urbano') cat3=QgsRendererCategory('Matos e Pastagens', symbol3, 'Matos e Pastagens') cat4=QgsRendererCategory('Floresta', symbol4, 'Floresta') cat5=QgsRendererCategory('Agricultura', symbol5, 'Agricultura') categories=[cat1,cat2,cat3,cat4,cat5] # list renderer = QgsCategorizedSymbolRenderer('usosolo', categories) ifn_ppsm.setRenderer(renderer) ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://urldefense.com/v3/__https://lists.osgeo.org/mailman/listinfo/qgis-user__;!!P0kg3YazkQ!Wh7k2FBqY62GCB78RuenegW_YsQXCfSx7yC8s8SDK5rZJL96TYagaJQFJKb14VXtcg$ Unsubscribe: https://urldefense.com/v3/__https://lists.osgeo.org/mailman/listinfo/qgis-user__;!!P0kg3YazkQ!Wh7k2FBqY62GCB78RuenegW_YsQXCfSx7yC8s8SDK5rZJL96TYagaJQFJKb14VXtcg$ This electronic message, as well as any transmitted files included in the electronic message, may contain privileged or confidential information and is intended solely for the use of the individual(s) or entity to which it is addressed. If you have received this electronic message in error please notify the sender immediately and delete the electronic message. Any unauthorized copying, disclosure or distribution of the electronic message is strictly forbidden. NAV CANADA accepts no liability for any damage caused by any virus and/or other malicious code transmitted by this electronic communication. Le présent message électronique et tout fichier qui peut y être joint peuvent contenir des renseignements privilégiés ou confidentiels destinés à l’usage exclusif des personnes ou des organismes à qui ils s’adressent. Si vous avez reçu ce message électronique par erreur, veuillez en informer l’expéditeur immédiatement et supprimez le. Toute reproduction, divulgation ou distribution du présent message électronique est strictement interdite. NAV CANADA n’assume aucune resp
Re: [Qgis-user] Convert symbology of qgis layer into PyQGIS code to define renderer
Olá Gustavo How do I apply the named style afterwards in PyQGIS from the style qml file as the example below? Thanks again Manuel http://mrcc.com/qgis.dtd' 'SYSTEM'> simplifyDrawingTol="1" simplifyDrawingHints="1" simplifyAlgorithm="0" version="3.18.1-Zürich" readOnly="0" hasScaleBasedVisibilityFlag="0" minScale="1" maxScale="0" styleCategories="AllStyleCategories"> 1 1 1 0 fixedDuration="0" startField="" mode="0" durationField="" accumulate="0" endField="" endExpression=""> symbollevels="0" type="categorizedSymbol"> type="fill"> name="border_width_map_unit_scale" type="QString"/> type="QString"/> [...] On 11/06/2021 14:41, Jorge Gustavo Rocha wrote: Olá Manuel, There is no way to get the PyQGIS code from the style, as far as I know. But you can save the style (using the native QGIS format) and apply the named style afterwards in PyQGIS easily. Is this alternative workflow suitable for you? Regards, Gustavo On 11/06/21 12:56, Manuel Campagnolo wrote: Hi Do you know of a way of using the style of a ,say, vector layer in QGIS3 to create automatically the python code that would generate it, namely the QgsSymbol part in the code below. Thanks symbol1=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol2=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol3=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol4=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol5=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol1.setColor(QColor('black')) symbol2.setColor(QColor('gray')) symbol3.setColor(QColor('dark green')) symbol4.setColor(QColor('light green')) symbol5.setColor(QColor('orange')) cat1=QgsRendererCategory('Improdutivos', symbol1, 'Improdutivos') # category, symbol, label cat2=QgsRendererCategory('Urbano', symbol2, 'Urbano') cat3=QgsRendererCategory('Matos e Pastagens', symbol3, 'Matos e Pastagens') cat4=QgsRendererCategory('Floresta', symbol4, 'Floresta') cat5=QgsRendererCategory('Agricultura', symbol5, 'Agricultura') categories=[cat1,cat2,cat3,cat4,cat5] # list renderer = QgsCategorizedSymbolRenderer('usosolo', categories) ifn_ppsm.setRenderer(renderer) ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user -- - Manuel Campagnolo https://www.isa.ulisboa.pt/id/mlc ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] Convert symbology of qgis layer into PyQGIS code to define renderer
Olá Manuel, There is no way to get the PyQGIS code from the style, as far as I know. But you can save the style (using the native QGIS format) and apply the named style afterwards in PyQGIS easily. Is this alternative workflow suitable for you? Regards, Gustavo On 11/06/21 12:56, Manuel Campagnolo wrote: > Hi > > Do you know of a way of using the style of a ,say, vector layer in > QGIS3 to create automatically the python code that would generate it, > namely the QgsSymbol part in the code below. > > Thanks > > > symbol1=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) > symbol2=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) > symbol3=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) > symbol4=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) > symbol5=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) > > symbol1.setColor(QColor('black')) > symbol2.setColor(QColor('gray')) > symbol3.setColor(QColor('dark green')) > symbol4.setColor(QColor('light green')) > symbol5.setColor(QColor('orange')) > > cat1=QgsRendererCategory('Improdutivos', symbol1, 'Improdutivos') # > category, symbol, label > cat2=QgsRendererCategory('Urbano', symbol2, 'Urbano') > cat3=QgsRendererCategory('Matos e Pastagens', symbol3, 'Matos e > Pastagens') > cat4=QgsRendererCategory('Floresta', symbol4, 'Floresta') > cat5=QgsRendererCategory('Agricultura', symbol5, 'Agricultura') > categories=[cat1,cat2,cat3,cat4,cat5] # list > > renderer = QgsCategorizedSymbolRenderer('usosolo', categories) > ifn_ppsm.setRenderer(renderer) > > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] Convert symbology of qgis layer into PyQGIS code to define renderer
Hi Do you know of a way of using the style of a ,say, vector layer in QGIS3 to create automatically the python code that would generate it, namely the QgsSymbol part in the code below. Thanks symbol1=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol2=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol3=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol4=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol5=QgsSymbol.defaultSymbol(ifn_ppsm.geometryType()) symbol1.setColor(QColor('black')) symbol2.setColor(QColor('gray')) symbol3.setColor(QColor('dark green')) symbol4.setColor(QColor('light green')) symbol5.setColor(QColor('orange')) cat1=QgsRendererCategory('Improdutivos', symbol1, 'Improdutivos') # category, symbol, label cat2=QgsRendererCategory('Urbano', symbol2, 'Urbano') cat3=QgsRendererCategory('Matos e Pastagens', symbol3, 'Matos e Pastagens') cat4=QgsRendererCategory('Floresta', symbol4, 'Floresta') cat5=QgsRendererCategory('Agricultura', symbol5, 'Agricultura') categories=[cat1,cat2,cat3,cat4,cat5] # list renderer = QgsCategorizedSymbolRenderer('usosolo', categories) ifn_ppsm.setRenderer(renderer) ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user