在QT中实现保存shp文件
时间: 2023-04-06 07:00:54 浏览: 316
可以使用QGIS提供的QgsVectorFileWriter类来实现在QT中保存shp文件。具体步骤如下:
1. 引入QgsVectorFileWriter头文件:#include <QgsVectorFileWriter.h>
2. 创建QgsVectorLayer对象并添加要素
3. 使用QgsVectorFileWriter类的writeAsVectorFormat()方法将QgsVectorLayer对象保存为shp文件
示例代码如下:
QgsVectorLayer *layer = new QgsVectorLayer("Point", "MyLayer", "memory");
QgsFeature feature;
feature.setGeometry(QgsGeometry::fromPointXY(QgsPointXY(0, 0)));
layer->startEditing();
layer->addFeature(feature);
layer->commitChanges();
QString shpFilePath = "/path/to/your/shp/file.shp";
QgsVectorFileWriter::writeAsVectorFormat(layer, shpFilePath.toUtf8().constData(), QgsCoordinateTransformContext(), "ESRI Shapefile", nullptr, "UTF-8", true);
注意:在使用QgsVectorFileWriter类的writeAsVectorFormat()方法时,需要指定文件路径、文件格式、编码等参数。
阅读全文
相关推荐














