1

13693261870

2022-11-08 f06458d87470540a5640b7449bc895004d6fe02a

 QGIS/render.py

@@ -8,21 +8,30 @@
from qgis.PyQt.QtXml import *


def setLayersValid(root, showLayers):
def setLayersValid(project, showLayers):
    for layer in project.mapLayers().values():
        flag = layer.name() in showLayers
        print(layer.name() + ": " + str(flag))
        # if not flag:
        # project.removeMapLayer(layer)
        layer.setValid(flag)


def setItemVisibility(root, showLayers):
    print('Group: ' + root.name())
    for node in root.children():
        # QgsLayerTreeLayer
        if isinstance(node, QgsLayerTreeGroup):
            setChild(node, showLayers)
            setItemVisibility(node, showLayers)
        # QgsRasterLayer, QgsVectorLayer
        else:
            name = node.layer().name()
            flag = name in showLayers
            print(str(flag) + ", " + name)

            if not flag:
            # if not flag:
                # root.removeLayer(node.layer())
                node.layer().setValid(False)
            # node.layer().setValid(False)
            node.setItemVisibilityChecked(flag)


QgsApplication.setPrefixPath(r"C:/Program Files/QGIS 3.16/bin", True)
@@ -48,14 +57,10 @@
print('1:' + str(math.ceil(map.scale())))

# "阀室", "站场", "管道中心线", "矢量注记", "矢量图", "影像注记", "影像图"
showLayers = ["阀室", "管道中心线", "影像注记", "影像图"]
# root = project.layerTreeRoot()
# setLayersValid(project, root, showLayers)
for layer in project.mapLayers().values():
    flag = layer.name() in showLayers
    if not flag:
        layer.setValid(flag)
    print(layer.name() + ": " + str(flag))
showLayers = ["站场", "管道中心线", "影像注记", "影像图"]
root = project.layerTreeRoot()
# setLayersValid(project, showLayers)
setItemVisibility(root, showLayers)

layout.refresh()
map.refresh()