In a standalone app I want to create a print composer with the map, a legend and a scale bar. I try with different codes but without success. I search in several foruns but I didn't find an answer.
basename_R = fileInfo_R.baseName()
R_color_raster = QgsRasterLayer(R_color, basename_R)
layerset = []
QgsMapLayerRegistry.instance().addMapLayer(R_color_raster)
layerset.append(R_color_raster.id())
myMap = QgsMapSettings()
myComposition = QgsComposition(myMap)
myComposition.setPlotStyle(QgsComposition.Print)
#legend
legend = QgsComposerLegend(myComposition)
legend.model().setLayerSet(myMap.layers())
legend.model().setLayerSet
myComposition.addComposerLegend(legend)
legend.setItemPosition (25,122)
legend.setFrameEnabled(True)
legend.setScale(.7)
output_jpeg = "..../Factor.jpg"
myImage = myComposition.printPageAsRaster(0)
myImage.save(output_jpeg)
Legend works fine but I have no success with map composer. I try everything but nothing. Any ideas?
UPDATE
So I find this information that I think its useful for anyone that uses this composer option: Making serial maps from template using PyQGIS?
In version 2.4 and above the maprenderer is replaced by mapsettings. I try this and I am still trying but without success in compose my map. Does anyone try and get this right?
UPDATE
Ok, I find the solution to "add map". Here is the code:
fileInfo_R = QFileInfo(R_color)
basename_R = fileInfo_R.baseName()
path = fileInfo_R.filePath()
R_color_raster = QgsRasterLayer(path, basename_R)
layerset = []
QgsMapLayerRegistry.instance().addMapLayer(R_color_raster)
layerset.append(R_color_raster.id())
myMap = QgsMapSettings()
mapRectangle = myMap.fullExtent()
myMap.setExtent(mapRectangle)
myMap.setOutputSize(QSize(1300,900))
myComposition = QgsComposition(myMap)
myComposition.setPlotStyle(QgsComposition.Print)
x,y = 0,0
w,h = myComposition.paperWidth(), myComposition.paperHeight()
composerMap = QgsComposerMap(myComposition,x,y,w,h)
composerMap.gridEnabled()
myComposition.addComposerMap(composerMap)
composerMap.setLayerSet(myMap.layers())
#legend
legend = QgsComposerLegend(myComposition)
legend.model().setLayerSet(myMap.layers())
legend.model().setLayerSet
myComposition.addComposerLegend(legend)
legend.setItemPosition (25,122)
legend.setFrameEnabled(True)
legend.setScale(.7)
item = QgsComposerScaleBar(myComposition)
myComposition.addComposerScaleBar(item)
item.setStyle('Numeric')
item.setItemPosition(0,122)
item.update()
output_jpeg = "..../Factor.jpg"
myImage = myComposition.printPageAsRaster(0)
myImage.save(output_jpeg)
Ok, but now I don't need the legend, I need to insert a picture and I try with addComposerPicture but without success. Any idea? Also I want to add the scale bar but the numeric gives me 1:1. I assume that the coordinate system isn't readed. Any ideas?
