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Python Viewer.set_selection方法代码示例

本文整理汇总了Python中viewer.Viewer.set_selection方法的典型用法代码示例。如果您正苦于以下问题:Python Viewer.set_selection方法的具体用法?Python Viewer.set_selection怎么用?Python Viewer.set_selection使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在viewer.Viewer的用法示例。


在下文中一共展示了Viewer.set_selection方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: EarthMineQGIS

# 需要导入模块: from viewer import Viewer [as 别名]
# 或者: from viewer.Viewer import set_selection [as 别名]

#.........这里部分代码省略.........
        so no other methods apart from startViewer will be handled.
        """
        settings = self.earthmine_settings()
        self.viewer.startViewer(settings)

    @pyqtSlot()
    def viewerReady(self):
        """
        Called once the viewer is loaded and ready to get location events.
        """
        self.disconnect_signals()
        self.connect_signals()
        self.iface.projectRead.connect(self.connect_signals)
        self.canvas.layersChanged.connect(self.layers_changed)
        self.canvas.selectionChanged.connect(self.selection_changed)
        self.canvas.selectionChanged.connect(self.viewer.selection_changed)
        QgsMapLayerRegistry.instance().layersRemoved.connect(self.layers_removed)
        QgsMapLayerRegistry.instance().layerWasAdded.connect(self.connect_layer_signals)
        self.center_on_canvas()
        self.viewer.activelayercombo.setLayer(self.iface.activeLayer())

    def center_on_canvas(self):
        point = self.canvas.extent().center()
        transform = self.coordinatetransform()
        point = transform.transform(point, QgsCoordinateTransform.ReverseTransform)
        self.viewer.set_location(point)
        self.viewer.infoaction.toggle()

    def selection_changed(self, layer):
        ids = [feature.id() for feature in layer.selectedFeatures()]
        if not ids:
            self.viewer.clear_selection(layer.id())
        else:
            self.viewer.set_selection(layer.id(), ids)

    def layers_changed(self):
        layerstates = self.layers_with_states()
        for layer, visible in layerstates:
            layerid = layer.id()
            viewerloaded = self.viewer.layer_loaded(layerid)
            QgsMessageLog.instance().logMessage(layerid, "Earthmine")
            QgsMessageLog.instance().logMessage("Viewer State:" + str(viewerloaded), "Earthmine")
            QgsMessageLog.instance().logMessage("QGIS State:" + str(visible), "Earthmine")
            if (viewerloaded and visible) or (not viewerloaded and not visible):
                QgsMessageLog.instance().logMessage("Ignoring as states match", "Earthmine")
                continue

            if viewerloaded and not visible:
                QgsMessageLog.instance().logMessage(
                    "Clearing layer because viewer loaded and disabled in QGIS", "Earthmine"
                )
                self.viewer.clear_layer_features(layerid)
                continue

            if not viewerloaded and visible:
                QgsMessageLog.instance().logMessage("Loading layer", "Earthmine")
                self.load_layer_features(layers=[layer])
                continue

    def layers_removed(self, layers):
        for layerid in layers:
            self.viewer.clear_layer_features(layerid)

    @pyqtSlot(str, float, float)
    def viewChanged(self, event, yaw, angle):
        self.marker.setAngle(angle)
开发者ID:michaelborck,项目名称:earthmine-qgis,代码行数:70,代码来源:earthmine_qgis.py


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