Difference between revisions of "ZoomIn Command"

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<noinclude>{{Manual Page|version=4.0}}</noinclude>
 
<noinclude>{{Manual Page|version=4.0}}</noinclude>
 
{{command|scripting}}
 
{{command|scripting}}
 
;ZoomIn[ <Scale Factor> ]
 
;ZoomIn[ <Scale Factor> ]
:{{description}}
+
:Zooms the [[Graphics View]] in by given factor with respect to current zoom, center of the screen is used as center point for the zoom.
 +
{{example|1=<code>ZoomIn[1]</code> doesn't do anything, <code>ZoomIn[2]</code> zooms the view in, <code>ZoomIn[0.5]</code>is equivalent to [[ZoomOut Command|ZoomOut]][2], i.e. it zooms the view out.}}
 
;ZoomIn[ <Scale Factor>, <Center Point> ]
 
;ZoomIn[ <Scale Factor>, <Center Point> ]
:{{description}}
+
:Zooms the  [[Graphics View]] in by given factor with respect to current zoom, second parameter specifies center point for the zoom.
 +
;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).
 +
{{Note|If multiple [[Graphics View|Graphics Views]] are present, the active one is used.}}

Revision as of 17:30, 2 May 2011



ZoomIn[ <Scale Factor> ]
Zooms the 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>,
]
Zooms the Graphics View in by given factor with respect to current zoom, second parameter specifies center point for the zoom.
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).
Note: If multiple Graphics Views are present, the active one is used.

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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