Map and Table Calculation

MAPMIN( ) function

Returns the minimum value of a value map.

Syntax

MAPMIN(ValueMap)

Input

ValueMap	is a raster, polygon, segment or point map
Domain type:	any Value domain

Output

MAPMIN returns:	a value
Domain:	system domain Value

Note:

By default, this function works on raster maps with extension .mpr; you can omit the extension .mpr. To use this function on polygon maps, segment maps or point maps, you need to specify the object's extension (.mpa, .mps or .mpp).

Tips:

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

Simple calculators, MapCalc, TabCalc

Examples

Pocket line calculator examples:

? MAPMIN(DEM)	returns the minimum value of raster map DEM, e.g. 342
? MAPMIN(Rain.mpp)	returns the minimum value of point map Rain, e.g. 17

MapCalc example:

OutMap = MAPMIN(InMap)

InMap

OutMap

10	35	20
35	15	40
?	40	30

10	10	10
10	10	10
10	10	10

OutMap1 = InMap1 - MAPMIN(InMap1)

InMap1

OutMap1

10	35	20
35	15	40
?	40	30

0	25	10
25	5	30
?	30	20

TabCalc example:

OutCol = InCol + MAPMIN(InMap)

InCol	OutCol
10	20
35	45
20	30
35	45
15	25
40	50
?	?
40	50
30	40

MAPMAX	PIXAREA
MAPROWS	TBLRECS
MAPCOLS	TBLCOLS
PIXSIZE	TBLVALUE