Difference between Vector and Raster data

          

Difference between Vector and Raster data.


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Oracle - Difference between Vector and Raster data. posted by Babu Kunwar

Difference between Vector and Raster data.

While vector features use geometry to represent the real world, raster data takes a different approach. Raster’s are made up of a matrix of pixels each containing a value that represents the conditions for the area covered by that cell.

Vector data is used for representing homogeneous data as they aren't very good at representing features that are not homogeneous all over. But Raster data is used for representing heterogeneous data.

Raster objects are made up of pixels and are considered resolution dependent because they contain a fixed number of pixels that are used to create the image. However vector data does not use pixels.

A vector data is based on points, lines, and areas defined by drawing boundaries around features and labeling or attributing them. While rapter data is based on images and polygon.

What Spatial Vendors integrate with Oracle?

  • POSTGIS
  • MYSQL
  • SQL SERVER 2005
  • IBM DB2.

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