自动化QGIS项目编辑器打印？

我有一个大型项目，包含大约10个QGIS项目文件。每个项目都包含一个打印作曲家，该作曲家设置了可生成多达10张地图的地图集。

使用作曲者地图集自动打开每个项目并创建PDF的最简单方法是什么？

（像这样的东西是理想的-不确定是否可能）

C：\ OSGeo4W \ bin \ qgis.bat-项目MyProject1.qgs-代码SaveAtlasAsPdf.py C：\ OSGeo4W \ bin \ qgis.bat-项目MyProject2.qgs-代码SaveAtlasAsPdf.py

将其保存在Python文件中并在--code arg中使用它应该可以满足您的需要：

from PyQt4.QtCore import *
from PyQt4.QtGui import *
import os

from qgis.core import *
from qgis.gui import *
from qgis.utils import iface

for comp in iface.activeComposers():
    print comp
    folder = r"C:\temp"
    title = "testing"
    printer = QPrinter()
    painter = QPainter()
    comp.composition().setUseAdvancedEffects(False)
    myAtlas = comp.composition().atlasComposition()

    if myAtlas.enabled():
        myAtlas.beginRender()
        comp.composition().setAtlasMode(QgsComposition.ExportAtlas)
        myAtlas.setFilenamePattern(u"'{}_'||$feature".format(title))
        for i in range(0, myAtlas.numFeatures()):
            myAtlas.prepareForFeature(i)
            filename = os.path.join(folder, title + '.pdf')
            print filename
            comp.composition().beginPrintAsPDF(printer, filename)
            comp.composition().beginPrint(printer)
            printReady = painter.begin(printer)
            if i > 0:
                printer.newPage()
            comp.composition().doPrint(printer, painter)
        myAtlas.endRender()
        painter.end()

如果所有的作曲家都启用了图集，则这将循环所有作曲家并将其打印为一个PDF。

注意您可以使用在QGIS会话中打开项目文件iface.addProject。因此，您可以这样做以避免打开许多QGIS会话。

from PyQt4.QtCore import *
from PyQt4.QtGui import *
import os

from qgis.core import *
from qgis.gui import *
from qgis.utils import iface

def print_it():
    for comp in iface.activeComposers():
        print comp
        folder = r"C:\temp"
        title = "testing"
        printer = QPrinter()
        painter = QPainter()
        comp.composition().setUseAdvancedEffects(False)
        myAtlas = comp.composition().atlasComposition()

        if myAtlas.enabled():
            myAtlas.beginRender()
            comp.composition().setAtlasMode(QgsComposition.ExportAtlas)
            myAtlas.setFilenamePattern(u"'{}_'||$feature".format(title))
            for i in range(0, myAtlas.numFeatures()):
                myAtlas.prepareForFeature(i)
                filename = os.path.join(folder, title + '.pdf')
                print filename
                comp.composition().beginPrintAsPDF(printer, filename)
                comp.composition().beginPrint(printer)
                printReady = painter.begin(printer)
                if i > 0:
                    printer.newPage()
                comp.composition().doPrint(printer, painter)
            myAtlas.endRender()
            painter.end()

for project in projectlist:
    iface.addProject(project)
    print_it()