Category Archives: Quantum – QGIS

Merge two or more polygons, points or polyline of Shapefile

Merge two or more polygons, points or polyline of Shapefile in QGIS. Do you want to merge features of to combine…
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Image Classification in QGIS – Supervised and Unsupervised classification

Image Classification in QGIS: Image classification is one of the most important tasks in image processing and analysis. It is used…
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Georeference a map with the help of another georeferenced map

Here we will see how to georeference a map with the help of another georeferenced map in QGIS (Quantum GIS). Georeference…
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Different ways to convert Shapefile to GeoJSON – Online or Offline or API

Convert Shapefile to GeoJSON. Shapefile, ESRI made a standard vector file format which is largely adopted in the field of…
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Download Digital Terrain DEM (Digital Elevation Model) and create contours Maps

Digital Elevation Model is a 3D representation of a terrain. It is generated by collecting elevation points of terrain. We…
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Add table attributes with joining two files in QGIS

Want to add more attributes in your Shapefile to respective feature? QGIS an open source tool, which I recommend to…
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How to Georeference Map Image with Geo Coordinate Control points

How to Geo-reference Map Image with Geo Coordinate points in QGIS (Quantum GIS). Georeference is a process to associate geographic location…
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