![raster calculation raster calculation](https://i.stack.imgur.com/KOhSL.png)
![raster calculation raster calculation](https://gmt-tutorials.org/en/_images/rosenvalle.png)
![raster calculation raster calculation](https://docs.qgis.org/3.4/en/_images/raster_calculator1.png)
I don't want to 'delete' any areas greater than 5m, but rather re-assign a value of 5 to them.Īny help on how to do this would be very much appreciated. This allows you to perform algebraic operations based on raster layers. The result will be a data set of elevations from 0 to 5m. The raster calculator is one of the most flexible and versatile tools in QGIS. I'm trying to use the Raster Calculator to run a sum that will keep all values between 0 and 5 unchanged, but for those areas that have a value greater than 5 to change them to a value of 5. I have an elevation data set with values from 0 to 20 metres. The Raster Calculation process (Image / Raster Calculation) in TNTmips performs mathematical operations using the cell values in one or more input raster. If you have a very large input raster this can save you a big processing operation. You can also do this using a virtual raster in which case the processing all occurs on the fly. The rasterbator allows you to create posters larger than a standard page, using the tiled printing method. This tool does statistics to different rasters, so you can do the. Hit the Compute button and you have your new raster. Calculation with Raster It allows users to do analysis to implement the multiple tasks. Then, from the functions list, choose the "min" function.Īll you need is this expression (where A is the name of the input). I usually change these to A, B etc by clicking on the name in the list. Hit the 'New' input button and choose the raster you want to process. Sounds like you want to clip the raster so that no values exceed 5.