I don't know anything about QGIS, all I want to do is cut the shape of Missouri into a topography map for the purpose of 3d printing. I'm using the topography data of Missouri and some of the surrounding areas that I got off of OpenTopography and imported into QGIS. I'm following this guide: https://www.instructables.com/3D-Print-a-Custom-Raised-relief-Map/ and want to do it specifically with Missouri. I only need help to cut the map into the shape of Missouri, and this tool is kind of niche, so I'm not really finding much data, especially for my application.
- First you need to find a vector polygon from Missouri. For example this one from all states.
- Then you will need to filter only to get the boundaries of Missouri. Therefor use the selection tool (1), click on Missouri (2), right click the layer (3), export (4).
- In the next dialog select
ESRI Shapefileas Format (1) and
EPSG:4326 WGS84as the CRS, because your raster data is also in this Coordinate System (if you are using data from
- Like in this tutorial use
Clip Raster by Mask Layer
- Use the
rasteras Input, the boundaries of Missouri as the
Mask Layerand set the
nodata valuesto 0.