Map and Table Calculation

PIXSIZE( ) function

Returns the pixel size of a raster map or a georeference.

Syntax

PIXSIZE(RasterMap)
PIXSIZE(GeoReference.grf)

Input

When used on raster maps:

When used on georeferences:

Output

Note:

For georeferences which are not a georeference corners, an approximation of the pixel size is returned.

Tips:

• The PIXSIZE function is often used in the calculation of slope maps, the shortest path and in neighbourbood operations.
• This function may be handy to use in DDE applications
• When the definition symbol = is used, a dependent output map or dependent output column is created; when the assignment symbol := is used, the dependency link is immediately broken after the output map/column has been calculated.

Usable in

MapCalc, TabCalc, Simple calculators

Examples

Pocket line calculator examples:

MapCalc example:

Suppose map InMap has a pixel size of 20.

OutMap = InMap * PIXSIZE(InMap)

Tip:

An applied example of the PIXSIZE function in combination with other functions is given in the topic How to calculate a slope map.

TabCalc example:

OutCol = InCol * PIXSIZE(InMap)

See also: