Difference between revisions of "ZoomIn Command"

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;ZoomIn( <Scale Factor> )
 
;ZoomIn( <Scale Factor> )
 
:Zooms the [[File:Menu view graphics.svg|link=|16px]] [[Graphics View]] in by given factor with respect to current zoom, center of the screen is used as center point for the zoom.
 
:Zooms the [[File:Menu view graphics.svg|link=|16px]] [[Graphics View]] in by given factor with respect to current zoom, center of the screen is used as center point for the zoom.
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:{{example|1=<div><code>ZoomIn[1]</code> doesn't do anything</div> <div><code>ZoomIn[2]</code> zooms the view in</div> <div><code>ZoomIn[0.5]</code> is equivalent to <code>ZoomOut[2]</code>, i.e. it zooms the view out.</div>}}
+
:{{example|1=<div><code>ZoomIn(1)</code> doesn't do anything</div> <div><code>ZoomIn(2)</code> zooms the view in</div> <div><code>ZoomIn(0.5)</code> is equivalent to <code>ZoomOut(2)</code>, i.e. it zooms the view out.</div>}}
 
;ZoomIn( <Scale Factor>, &lt;Center Point> )
 
;ZoomIn( <Scale Factor>, &lt;Center Point> )
 
:Zooms the [[File:Menu view graphics.svg|link=|16px]] [[Graphics View]] in by given factor with respect to current zoom, second parameter specifies center point for the zoom.
 
:Zooms the [[File:Menu view graphics.svg|link=|16px]] [[Graphics View]] in by given factor with respect to current zoom, second parameter specifies center point for the zoom.
−
:{{example|1=<div><code>ZoomIn[2, (0, 0)]</code></div>}}
+
:{{example|1=<div><code>ZoomIn(2, (0, 0))</code></div>}}
 
;ZoomIn( <Min x>, <Min y>, <Max x>, <Max y> )
 
;ZoomIn( <Min x>, <Min y>, <Max x>, <Max y> )
 
:Zooms the graphics view to the rectangle given by vertices (Min x, Min y), (Max x, Max y).  
 
:Zooms the graphics view to the rectangle given by vertices (Min x, Min y), (Max x, Max y).  
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:{{example|1=<div><code><nowiki>ZoomIn[0, 1, 5, 6]</nowiki></code> </div>}}
+
:{{example|1=<div><code><nowiki>ZoomIn(0, 1, 5, 6)</nowiki></code> </div>}}
 
:{{Note|If any of these parameters are dependent or has label set, the bounds of the view become dynamic. To avoid this behaviour, use [[CopyFreeObject Command]].}}
 
:{{Note|If any of these parameters are dependent or has label set, the bounds of the view become dynamic. To avoid this behaviour, use [[CopyFreeObject Command]].}}
−
:{{example|1=<div>If ''a'' is a slider, <code><nowiki>ZoomIn[-a, -a, a, a]</nowiki></code> makes the zoom of the view dependent on slider ''a''.</div>}}
+
:{{example|1=<div>If ''a'' is a slider, <code><nowiki>ZoomIn(-a, -a, a, a)</nowiki></code> makes the zoom of the view dependent on slider ''a''.</div>}}
 
{{Notes|1=
 
{{Notes|1=
 
:*If multiple [[File:Menu view graphics.svg|link=|16px]] [[Graphics View|Graphics Views]] are present, the active one is used
 
:*If multiple [[File:Menu view graphics.svg|link=|16px]] [[Graphics View|Graphics Views]] are present, the active one is used
 
:*See also [[ZoomOut Command|ZoomOut]], [[SetActiveView Command|SetActiveView]], [[Pan Command|Pan]]  commands.}}
 
:*See also [[ZoomOut Command|ZoomOut]], [[SetActiveView Command|SetActiveView]], [[Pan Command|Pan]]  commands.}}

Revision as of 09:24, 12 October 2017

ZoomIn

This article is about GeoGebra command.

Command Categories (All commands)


ZoomIn( <Scale Factor> )
Zooms the Menu view graphics.svg Graphics View in by given factor with respect to current zoom, center of the screen is used as center point for the zoom.
Example:
ZoomIn(1) doesn't do anything
ZoomIn(2) zooms the view in
ZoomIn(0.5) is equivalent to ZoomOut(2), i.e. it zooms the view out.
ZoomIn( <Scale Factor>, <Center Point> )
Zooms the Menu view graphics.svg Graphics View in by given factor with respect to current zoom, second parameter specifies center point for the zoom.
Example:
ZoomIn(2, (0, 0))
ZoomIn( <Min x>, <Min y>, <Max x>, <Max y> )
Zooms the graphics view to the rectangle given by vertices (Min x, Min y), (Max x, Max y).
Example:
ZoomIn(0, 1, 5, 6)
Note: If any of these parameters are dependent or has label set, the bounds of the view become dynamic. To avoid this behaviour, use CopyFreeObject Command.
Example:
If a is a slider, ZoomIn(-a, -a, a, a) makes the zoom of the view dependent on slider a.
Notes:
Retrieved from "http://wiki.geogebra.org/s/en/index.php?title=ZoomIn_Command&oldid=56298"

Comments

Idea of Use[edit]

Linear aproximation of a function by its tangent[edit]

Create a function f with a point A on it and a button with the code ZoomIn(2,A) to see that the function looks equal to the tangent for a big "magnification". Another button with ZoomOut let you be able to prove this at other positions of the point A.

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