Spatial Information Technology
Differentiate between Raster and Vector data models
Raster Data Models |
Vector Data Models |
1. Raster data represents a graphic features as a pattern of grids of squares. |
1. Vector data represents the object as a set of lines drawn between specific points. |
2. A Raster file would represent the image by sub-dividing the paper into a matrix of small rectangles similar to a sheet of graph paper called cells. |
2. A vector representation of the same diagonal line would record the position of the line by simple recording the coordinates of its starting and ending points. |
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What are important components of GIS?
What are different ways in which spatial data is built in GIS core?
What is spatial information technology?
Discuss raster and vector data formats. Give examples.
Write an explanatory account of the sequence of activities involved in GIS related work.
What is GIS?
What are the main types of GIS?
What are three basic elements of cartography?
What is the importance of computer in cartography?
What are the elements of data structure?
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