Converting KML (Keyhole Markup Language) files to SHP (Shapefile) format is a routine requirement in modern GIS (Geographic Information Systems) workflows. KML is popular for sharing geographic data in Google Earth, while SHP is the de‑facto standard for many desktop GIS applications. This article explains how to perform a reliable KML‑to‑SHP conversion using C#.
Why Convert KML to SHP?
Transforming KML to SHP offers several practical advantages:
Broad Compatibility – SHP files are supported by virtually all GIS software, making data exchange straightforward.
Improved Performance – Shapefiles are optimized for spatial indexing and large‑scale queries, delivering faster processing for extensive datasets.
Advanced Editing – Most GIS tools provide robust editing capabilities for SHP, enabling precise geometry manipulation and attribute management.
KML to SHP Converter - C# API Installation
To start converting KML to SHP, install the Conholdate.Total .NET library. Execute the following NuGet command in the Package Manager Console:
PM> NuGet\Install-Package Conholdate.Total
This package adds the necessary conversion engine and helper classes to your C# project.
Convert KML to SHP in C#
Follow these steps to convert a KML file to SHP with C#:
- Create a ConversionOptions object and configure the desired output settings.
- Set the spatial reference system to WGS84 (EPSG:4326) to preserve geographic coordinates.
- Call the Convert method, passing the source KML path and the target SHP path.
The example below demonstrates a complete conversion routine:
Free Evaluation License
You can request a free temporary evaluation license from the free temporary license page. This trial lets you explore all API features without any payment information.
Conclusion
Converting KML to SHP with C# streamlines GIS data management, ensuring maximum compatibility, performance, and editability. If you encounter any issues or have questions, feel free to reach out on our forum.
FAQs
What is KML?
KML (Keyhole Markup Language) is an XML‑based format used to represent geographic data in applications like Google Earth.
What is SHP?
SHP (Shapefile) is a widely adopted geospatial vector data format for GIS software.
How do I handle coordinate reference systems during the conversion?
The conversion engine supports spatial reference systems (SRS). You can specify or transform the SRS in ConversionOptions to match your target coordinate system.
Does it support other formats besides KML and SHP?
Yes, the library handles many formats, including GeoJSON, GPX, GML, and more, allowing seamless conversion between them.