Generating Contours from  DEM in QGIS

Generating Contours from DEM in QGIS

GIS, QGIS, Software, Tutorials
      A few weeks ago I wrote a post on “Generating DEMs from Contours” which was quite a straight forward process as explained.In this post , I will show how to “reverse engineer” the process and generate contours from DEMs. This time round am also going to demonstrate how to clip our dataset to work with the area of interest instead of working on the whole dataset. Lets begin: Assumption: You have the DEM on your local machine. If not so, data can be downloaded from either USGS EarthExplorer or from GeoComm Steps: Launch QGIS 2.X and Load our Raster Layer (DEM) i.e. Ken_dem (sample data for this tutorial) [caption id="attachment_187" align="aligncenter" width="640"] Load DEM in QGIS[/caption]   Go to Raster > Extraction > Clipper (This will help us in…
Read More
Generating DEMS from Contours in QGIS

Generating DEMS from Contours in QGIS

GIS, Tutorials
Well, Today was a great day in my GIS works. A colleague asked “Can I generate a DEM of my region using QGIS?” This was my answer to them “YES”. Then they asked me “How?” I ended up spending the next one hour doing the demo on my laptop for them to grasp the rough idea on how to go about this issue. That question motivated me to write this post so as to help other persons/groups out there who might be stuck in this issue like my good friend. Here are the steps for generating a DEM (Digital Elevation Model) from CONTOURS using GRASS Plugin in QGIS. To start, ensure you have the GRASS plugin installed in your QGIS (Plugins > Manage and Install plugins >GRASS) Load the “Contours” …
Read More