Exporting QGIS Data to DXF and KML Formats Using Python Script

In this blog post, we’ll explore how to use a Python script in QGIS to export geospatial data to DXF and KML file formats. This is a handy technique for those who work with geographic information systems (GIS) and need to share their data in different formats. We’ll walk through the script that filters and exports data based on subprojects, creating subproject-specific folders and supporting two different coordinate systems (EPSG:6204 and EPSG:6316).

I have a QGIS project with a pipe layer, and this pipe layer contains a field called “Subproject.” I want to filter the data by each subproject (ranging from 1 to 20) and save the filtered data in both DXF and KML formats. Additionally, you need to create separate folders for each subproject, and the DXF files should use two different coordinate systems.