Convert GeoJSON to TopoJSON – GIS

Convert GeoJSON to TopoJSON. GeoJSON is an open standard format designed for representing simple geographical features, along with their non-spatial attributes, based on JavaScript Object Notation. The need of conversion is to reduce the size of data, so that rendering of data on browser can be made faster. TopoJSON (topological geospatial data) is an extension … Continue reading “Convert GeoJSON to TopoJSON – GIS”

Formula to Find Bearing or Heading angle between two points: Latitude Longitude

Formula to Find Bearing or Heading angle between two points. Bearing or heading is used to define navigation generally in the field of aircraft or marine or Vehicle navigation or while working for land surveying. So what’s the heading or bearing? How we can find bearing between the two points on earth, with the formula? Or How … Continue reading “Formula to Find Bearing or Heading angle between two points: Latitude Longitude”

Geo-Referencing raster image in QGIS w.r.t. vector file

Geo-Referencing raster image in QGIS with respect to vector file. Geo referencing is the process used to provide geographical information to the raster images like cadastral maps, physical maps and satellite imagery with the help of projection or coordinate system. As an ordinary raster image formed by the number of pixel which has no particular size, … Continue reading “Geo-Referencing raster image in QGIS w.r.t. vector file”