View source for Zoom

{{FilterCat5|External_filters|Plugins|Plugins_x64|Adjustment_filters|Rotation}}
{{Filter3
|1={{Author/WarpEnterprises}}
|2=v1.4
|3=[x86] - [http://www.avisynth.nl/users/warpenterprises/files/zoom_5F25_dll_20050122.zip zoom_dll_20050122.zip]
[x64] - [https://forum.doom9.org/attachment.php?attachmentid=14054&d=1392574410 Zoom.7z ]
|4=Rotation
|5=[http://www.gnu.org/licenses/gpl-2.0.txt GPLv2]
|6=[https://forum.doom9.org/showthread.php?t=49429 Doom9 Thread]}}

== Description ==
Plugin to Zoom, Pan & Rotate.
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== Requirements ==
* [x86]: [[AviSynth+]] or [https://sourceforge.net/projects/avisynth2/ AviSynth 2.5.8 or greater]
* [x64]: [[AviSynth+]]
* Supported color formats: [[RGB32]]
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== [[Script variables|Syntax and Parameters]] ==
:{{Template:FuncDef|Zoom (clip, string "srcx", string "srcy", string "dstx", string "dsty", string "factorX", string "factorY", string "angle", int "width", int "height", bool "show")}}
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::{{Par2| |clip| }}
:::Input clip.
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::{{Par2|srcx|string|""}}
::{{Par2|srcy|string|""}}
:::The "center" coordinates in the original frame.
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::{{Par2|dstx|string|""}}
::{{Par2|dsty|string|""}}
:::The center coordinates in the moved frame
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::{{Par2|factorX|string|""}}
::{{Par2|factorY|string|""}}
:::The magnification factors.
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::{{Par2|angle|string|""}}
:::The rotation angle in radian.
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::{{Par2|width|int|0}}
::{{Par2|height|int|0}}
:::The new image dimensions.
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::{{Par2|show|bool|false}}
:::If true, it prints the calculated values on the image.
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== Examples ==
Sounds complicated? Not really, try this:

 Version().ConverttoRGB32().zoom(dstx="n", angle="n/10")

Here you see that the variable "n" can be used to reference to the current frame number (and this is of course the most important thingie).


Or try:

 Version().ConverttoRGB32()
 zoom(factorx="n<41 ? pow((n+1)/41,0.5) : 1", factory="n<41 ? pow((n+1)/41,0.5) : 1", dstx="n<41 ? width/2 : width/2+5*(n-41)", angle="n<41 ? 3.1415*n/10 : 0")

And the new image gets a defined alpha layer (black=transparent, else opaque), so you can layer the result on top of another video.

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== Changelog ==
 Version      Date            Changes<br>
              2005/01/22      - latest release
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== External Links ==
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'''Back to [[External_filters#Rotate|External Filters]] &larr;'''