getZoom: Difference between revisions
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None. | None. | ||
| | |examples= | ||
Zoom in by a factor 2 | Zoom in by a factor 2 | ||
<source lang="mtmacro" line> | <source lang="mtmacro" line> | ||
[h: z = getZoom()] | [h: z = getZoom()] | ||
[h: setZoom(2*z)] | [h: setZoom(2*z)] | ||
</source> | |||
Zoom in by one step | |||
<source lang="mtmacro" line> | |||
[h: z = getZoom()] | |||
[h: setZoom(z+1)] | |||
</source> | |||
Zoom out by one step | |||
<source lang="mtmacro" line> | |||
[h: z = getZoom()] | |||
[h: setZoom(z-1)] | |||
</source> | </source> | ||
Revision as of 08:36, 30 April 2015
getZoom() Function
• Introduced in version 1.4
Returns the current zoom level of the viewport. This is the same number as what you find at the bottom of the Maptool window.
Usage
getZoom()Parameters None.
Examples
Zoom in by a factor 2
[h: z = getZoom()]
[h: setZoom(2*z)]Zoom in by one step
[h: z = getZoom()]
[h: setZoom(z+1)]Zoom out by one step
[h: z = getZoom()]
[h: setZoom(z-1)]