I want to develop "Print lay out functionality", but in output system is giving me whole image, I want to print only selected polygon. Also it is not displaying label names on print image.
Please suggest some way.
from PyQt4.QtGui import *from PyQt4.QtCore import *import timel = iface.activeLayer()for a in l.getFeatures(): attrs = {16: 1} l.dataProvider().changeAttributeValues({a.id(): attrs}) img = QImage(QSize(1280, 1024), QImage.Format_ARGB32_Premultiplied) # set image's background color color = QColor(255, 255, 255) img.fill(color.rgb()) # create painter p = QPainter() p.begin(img) p.setRenderHint(QPainter.Antialiasing) render = QgsMapRenderer() palyr = QgsPalLayerSettings() palyr.readFromLayer(l) lst = [l.id()] render.setLayerSet(lst) render.setLabelingEngine(QgsPalLabeling()) # set extent rect = QgsRectangle(render.fullExtent()) rect.scale(1.1) render.setExtent(rect) render.setScale(1) render.setOutputSize(img.size(), img.logicalDpiX()) render.render(p) p.end() # save image img.save("C:/example/Ashwin/%s.jpg" % a['CHALTA_NO'],"jpg") attrs = {16: 0} l.dataProvider().changeAttributeValues({a.id(): attrs}) time.sleep(1)
أكثر...
Please suggest some way.
from PyQt4.QtGui import *from PyQt4.QtCore import *import timel = iface.activeLayer()for a in l.getFeatures(): attrs = {16: 1} l.dataProvider().changeAttributeValues({a.id(): attrs}) img = QImage(QSize(1280, 1024), QImage.Format_ARGB32_Premultiplied) # set image's background color color = QColor(255, 255, 255) img.fill(color.rgb()) # create painter p = QPainter() p.begin(img) p.setRenderHint(QPainter.Antialiasing) render = QgsMapRenderer() palyr = QgsPalLayerSettings() palyr.readFromLayer(l) lst = [l.id()] render.setLayerSet(lst) render.setLabelingEngine(QgsPalLabeling()) # set extent rect = QgsRectangle(render.fullExtent()) rect.scale(1.1) render.setExtent(rect) render.setScale(1) render.setOutputSize(img.size(), img.logicalDpiX()) render.render(p) p.end() # save image img.save("C:/example/Ashwin/%s.jpg" % a['CHALTA_NO'],"jpg") attrs = {16: 0} l.dataProvider().changeAttributeValues({a.id(): attrs}) time.sleep(1)
أكثر...