GRAM++

GRAM++ is a Geographic Information System software package developed indigenously at the Centre of Studies in Resources Engineering, IIT Bombay.

The software is organized as a number of modules including Import/Export of different format data, Map Editing, Raster Analysis, Vector Analysis, Network Analysis, Terrain modeling and watershed delineation, Digital Image Processing, and Map Layout. Support for Survey of India’s Digital Vector Data (DVD) format is added to the package to enhance the functionality in the Indian environment. This development was supported by UNDP assisted project GIS Based Technologies for Local Level Development Planning’ and the Department of Science and Technology, Government of India.

Modules Supported:

  • Input Output: The Input/Output module gives the facility to import data with other formats into GRAM++ format.The GRAM++ vector and raster data can also be exported into various formats.


  • Map Edit: This module provides facility for digitization / vectorization of map on the screen by opening an image / map at the background.


  • Raster Analysis: The Raster Analysis module is useful for the analysis of a raster file. With the help of this module, basic arithmetic functions (like addition, subtraction,etc), regrouping (class and range), Buffering.


  • Vector Analysis: The Vector Analysis module gives the facility to query the map, generate thematic and statistical maps and to display the resultant map with various layout features such as north arrow, scale bar etc.


  • Terrain: The Terrain module provides facility for generation of DTM from contour map and calculation of slope, aspect and generates relative relief map using DTM. It can also perform Visibility Analysis and Profile plotting.


  • Tin: The Grampp-TIN module allows to triangulate Gram++ Vector (only Segment and/or Point) format data. It can also generate Contour from Triangulated data.


  • Image Processing: Digital image processing support is essential in GIS to handle raster data sets such as satellite remotely sensed images, and scanned maps.where u can perform the operations such as Image Enhancement, Image Classification, Image Transformation.


  • Statistics: The statistical module help the interpretation of the data information collected. The data / information may be spatial or non spatial.


  • Raster Layout: This module provides facility for visualizing raster maps in 2Dand 3D.It also provides several other integrated raster utilities such as North arrow.


  • Vector Layout: This module provides facility for visualizing vector maps with the various layout features such as North arrow, Scale bar, Legends.


  • GramNet: GramNet module, basically is a Network Analysis module. It calculates the shortest distance between a source node and the destination node. It is also used for Location Allocation problem.


  • Online Help: The best method of getting used to a software package is via tutorial exercises and online help. Keeping in view the types of users of GRAM++, a detailed online help is provided for each function.

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