Pan-sharpening images using ArcGIS

Pan-sharpening images using ArcGIS. Pansharpening is the process which makes use of panchromatic image and some bands of multispectral image to result in a high resolution image. Pansharpening stands for panchromatic sharpening. Here sharpening basic refers to increase the spatial resolution of multisprectral image or color image. This technique of increasing resolution has been used … Continue reading “Pan-sharpening images using ArcGIS”

c++ program to read shapefile header

c++ program to read shapefile header. Shapefile can be read if you know the format of Shapefile files i.e of .shp, .shx, and .dbf file. ESRI provided technical description of the Shapefile files which describes very clearly about the format of storage of data in all three formats i.e .shp, .shx and .dbf. You can … Continue reading “c++ program to read shapefile header”

Get minimum Bounding box of shapefile c++ program

Get minimum Bounding box of shapefile c++ program. This program not only reads shapefile, but makes you aware to read other files, i.e files which have .dbf, .exe, .png etc format without having software. Before that you should know about bits, byte order, and conversion of bytes to other data types and most importantly the format of … Continue reading “Get minimum Bounding box of shapefile c++ program”

What is GIS | Geographic Information System

What is GIS | Geographic Information System? GIS is an Abbreviation of Geographical Information System or Geo-spatial Information Systems or Geologic Information Systems (also Geo-spatial database management). As the name suggest ‘GIS’ is related to geographical information. But before explaining what is GIS?, we should know about what Geographic information means? Geographic information is knowledge of where something is. It defines the spatial reference of … Continue reading “What is GIS | Geographic Information System”

How to remove gaps from a polygon layer file in ArcGIS?

How to remove gaps from a polygon layer file in ArcGIS? While preparing polygon layer file following various stages of layer preparation like Digitization, Spatial adjustment, Merging and Cleaning. This is what making it suitable to be used by a web application as an input. While layer file should be accurate with minimum error before … Continue reading “How to remove gaps from a polygon layer file in ArcGIS?”