#!/usr/bin/env
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# -*- coding: utf-8 -*-
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import os
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import sys
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import math
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import argparse
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from qgis.core import *
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from qgis.gui import *
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from qgis.PyQt.QtGui import *
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from qgis.PyQt.QtCore import *
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from qgis.PyQt.QtWidgets import *
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from qgis.PyQt.QtXml import *
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# 获取完整路径
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def get_full_path():
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return os.path.split(sys.argv[0])[0]
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# 获取参数
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def get_args():
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print("argv = ", sys.argv[1:])
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parser = argparse.ArgumentParser(description='ArgUtils')
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parser.add_argument("-src", type=str, default=get_full_path(), required=False)
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parser.add_argument("-qgz", type=str, default="LF.qgz", required=False)
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parser.add_argument("-qpt", type=str, default="LF.qpt", required=False)
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return parser.parse_args()
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# 设置图层可用性
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def set_layers_valid(prj, show_layers):
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for layer in prj.mapLayers().values():
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flag = layer.name() in show_layers
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print(layer.name() + ": " + str(flag))
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# if not flag:
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# project.removeMapLayer(layer)
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layer.setValid(flag)
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# 设置图层可见性
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def set_item_visibility(root_node, show_layers):
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print(root_node.name() + ': Group')
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for node in root_node.children():
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# QgsLayerTreeLayer
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if isinstance(node, QgsLayerTreeGroup):
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set_item_visibility(node, show_layers)
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# QgsRasterLayer, QgsVectorLayer
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else:
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name = node.layer().name()
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flag = name in showLayers
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print(name + ": " + str(flag))
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# if not flag:
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# root_node.removeLayer(node.layer())
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# node.layer().setValid(False)
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node.setItemVisibilityChecked(flag)
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# 初始化
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# QgsApplication.setPrefixPath(r"E:/terrait/TianJin/LFServer/QGIS/", True)
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qgs = QgsApplication([], True)
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qgs.initQgis()
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# 加载工程
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args = get_args()
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project = QgsProject.instance()
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# project.read(r'Test.qgz')
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project.read(os.path.join(args.src, args.qgz))
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print("FileName: " + project.fileName())
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# layout = QgsPrintLayout(project)
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layout = QgsLayout(project)
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# layout.initializeDefaults()
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# 加载模板
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# with open(r'Test.qpt', 'r', encoding='utf-8') as f:
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with open(os.path.join(args.src, args.qpt), 'r', encoding='utf-8') as f:
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template_content = f.read()
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doc = QDomDocument()
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doc.setContent(template_content)
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layout.loadFromTemplate(doc, QgsReadWriteContext(), True)
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# map = layout.itemById(r'地图')
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map = layout.referenceMap()
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map.zoomToExtent(map.extent())
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print('1:' + str(math.ceil(map.scale())))
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size = map.sizeWithUnits()
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print('size: ' + str(size.width()) + " * " + str(size.height()) + " mm")
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if size.width() > 280 or size.height() > 174:
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map.attemptResize(QgsLayoutSize(280, 174, QgsUnitTypes.LayoutMillimeters))
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print('size: ' + str(map.sizeWithUnits().width()) + " * " + str(map.sizeWithUnits().height()) + " mm")
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# 设置图层
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# "阀室", "站场", "管道中心线", "矢量注记", "矢量图", "高德影像注记", "高德影像", "影像注记", "影像图"
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# showLayers = ["阀室", "管道中心线", "矢量注记", "矢量图"]
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showLayers = layout.customProperty("layers").split(',')
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root = project.layerTreeRoot()
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# set_layers_valid(project, showLayers)
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set_item_visibility(root, showLayers)
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# collection = layout.pageCollection()
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# page = collection.page(0)
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# page.refreshItemSize()
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# 刷新
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map.refresh()
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layout.updateBounds()
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layout.refresh()
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# 导出
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exporter = QgsLayoutExporter(layout)
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# img_path = os.path.join(r"E:/terrait/TianJin/LFServer/QGIS", "render.png")
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img_path = layout.customProperty("imgPath")
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exporter.exportToImage(img_path, QgsLayoutExporter.ImageExportSettings())
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# 退出
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qgs.exitQgis()
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