Script file generated from LiVES

<define>
|1.7
</define>

<name>
ZoomOnASpot
</name>

<version>
1
</version>

<author>
William|
</author>

<description>
Zoom In On A Spot|Zooming in on a Spot|1|1|
</description>

<requires>
convert
</requires>

<params>
ezoom|_End Zoom eg 6% becomes 100%|num0|12|1|100|
cx|Centre on _X|num0|0|0|10000|
cy|Centre on _Y|num0|0|0|10000|
</params>

<param_window>
</param_window>

<properties>
0x0001
</properties>

<language_code>
0xF0
</language_code>

<pre>
$zoom=-1;
$antialias="false";
$resize_ext=$out_ext;

$xremoveeachtime=(($width/100.0)*(100.0-$p0))/($end-$start+1.);
$yremoveeachtime=(($height/100.0)*(100.0-$p0))/($end-$start+1.);

$c_x=$p1;
$c_y=$p2;
</pre>

<loop>
$zoom++;
$newwidth=int($width-($xremoveeachtime*$zoom));
$newheight=int($height-($yremoveeachtime*$zoom));
$s_x=int($c_x-($newwidth/2));
if ($s_x<0) {
	$s_x=0;
	}
if ($s_x+$newwidth>$width)
	{
	$s_x=int($width-$newwidth);
	}
$s_y=int($c_y-($newheight/2));
if ($s_y<0) {
	$s_y=0;
	}
if ($s_y+$newheight>$height)
	{
	$s_y=int($height-$newheight);
	}
$input_ext=$img_ext;
&trim_frame($name,$width,$height,$s_x,$s_y,$newwidth,$newheight);
$input_ext=$resize_ext;
&resize_frame($name,$width,$height);
</loop>

<post>
</post>

<onchange>
init|$p1_max=$width;$p1=$width/2;$p2_max=$height;$p2=$height/2;
</onchange>