8 Set NoData Value

A common problem when working with GIS data is that the nodata value has not been properly set within the file. By using the function Set No Data Value from the context menu of your file, you can change the NoData Value.

Hinweis: Be aware that the setting of a NoData value changes your source file if you did not create a hard copy file!

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Figure 31: Select SetNoDataValue from the context menu

Within the dialog you can specify your NoData value either by typing exact value or by selecting one of the suggested NoData values that are proposed based on the filetype that is used.

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Figure 32: Select the NoData value of your file

The suggested NoData values correspond to the filetype of your data. The following data types and corresponding NoData values are often used and suggested by other GIS software products and suggested as a NoData value within INSENSA GIS:

  • byte: a 8-bit signed integer with a minimum value of -128 and a maximum value of 127 (inclusive). The suggested NoData values are …
  • integer: a 32-bit signed integer with a minimum value of -2,147,483,648 and a maximum value of 2,147,483,647 (inclusive). The suggested NoData values are …
  • long: a 64-bit signed integer with a minimum value of -9,223,372,036,854,775,808 and a maximum value of 9,223,372,036,854,775,807 (inclusive). The suggested NoData values are …
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