ZoomAndCenterMap()

Summary

Changes the scale and center of a map.

 

Syntax

ZoomAndCenterMap(string map_name, real fraction, coordinate center)

 

Argument	Contents
map_name	The map to be modified
fraction	The multiplier by which the width and height should be changed
center	The new center of the map

 

Notes

• If the map_name is null, ZoomAndCenterMap() uses the current map.

Example

scp = GetMapScope()

ZoomAndCenterMap (null, 2.0, scp.center)     // Zoom out (double the width and height); don't change the center

newcenter = Coord(-78000000, 43000000)

ZoomAndCenterMap ("my map", 0.5, newcenter)     // Zoom in (cut the width and height in half), with new center

 

Error Codes

Error Type	Meaning
NotFound	The specified map does not exist

 

See Also

Function	Summary
CenterMap()	Centers a map at a particular location
SetScale()	Sets the scale of a map
ZoomMap()	Changes the scale of a map