Data Conversion: From Vector to Vector, Vector to Raster, Raster to Vector, and Raster to Raster (Especially for GATE-Geospatial 2022)

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It also called data transfer, convert data obtained from government or private sources to a format compatible with a GIS package. Because a large variety of GIS packages and data formats are in use, conversion of existing data can be difficult at times.

The choice of a conversion method basically depends upon the specificity of the data format. Proprietary data formats require special translators for data conversion, whereas neutral or public formats require a GIS package to have translators that can work with the formats.

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Data Format Conversion

Data conversion is the process of moving data from one format into another, whether it is from one data model to another or from one data format to another. With large amounts of geographic data available for use, it is more cost-effective to convert the data from one format to another than re-create it.

Data conversion is also common after data production for distributing data to others.

Various Format Conversions

  • Vector to Vector
  • Raster to Raster
  • Vector to Raster
    • Point
    • Line
  • Raster to Vector

There are many types of vector formats used in GIS, and even more raster formats. It is often necessary to change between file formats, even if they are both raster or both vectors to make data sets useable together.

This Diagram Shows Data Format Conversion
This Image Shows Vector to Raster Conversion

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