animations

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animations

Agustin Lobo
In order to appreciate the result of a process in one single band,
I've created a 2-bands tif using gdaltools (first I creat a vrt(*) and then
a geotif) and created the animation in Opticks.
While I can use the arrows to display the bands, the play button displays
band 1 for a long time and then band 2 for much less than a second. How can
I get an automatic continuous "flip-flop" (alternate display of each
band for i.e. 1 sec?

Also, is it possible to save the animation as animated gif or any
other animation format?

Thanks.

Agus

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Re: animations

Sulgrove, David
With just two bands, you will not be able to achieve the continuous
"flip-flop" using the Animation toolbar.  However, you can achieve that
effect with the Flicker Controls window as follows:

1) Copy the raster layer by right-clicking on the raster layer in the
Windows tab of the Session Explorer and selecting Copy.  You will be
prompted for a name for the new layer.
2) Change the band on the new raster layer by right-clicking on the new
raster layer in the Session Explorer and selecting Properties.  Change
the Display Band value in the Grayscale section to the band that the
original raster layer is not displaying.
3) Open the Flicker Controls dock window by selecting Flicker Controls
on the Tools menu on the main menu bar.  In the Flicker Controls window,
make sure that the Current Flicker Layer and Data Cube Layer values are
the two raster layers.
4) Adjust the flicker rate between the two layers by moving the
Requested Flicker Rate slider bar to a value of 1.
5) Start the flicker by pressing the Start button.

To save the animation in an animation format:

1) Select the window item (not the raster layer) in the Windows tab of
the Session Explorer.
2) Right-click and select Export.
3) Select the desired animation format exporter.  There are currently
three provided exporters: AVI, MJPEG, and MPEG-1.  You can click the
Options button to specify custom export parameters.
4) Select the filename in which to export the animation and click Save.

When the window is saved as an animation, all currently displayed layers
and markings (e.g. orientation axis, crosshair) will be included in the
exported file and the size of the animation is the same as the size of
the window.  You can adjust this by resizing the window or
showing/hiding the layers and/or markings before exporting to customize
the appearance of the exported file.  You will probably want to hide or
delete the copied raster layer if exporting after performing the flicker
steps listed above since it is not part of the animated layer.

- David


-----Original Message-----
From: Agustin Lobo [mailto:[hidden email]]
Sent: Friday, September 27, 2013 4:00 AM
To: [hidden email]
Subject: [Opticks-users] animations

In order to appreciate the result of a process in one single band,
I've created a 2-bands tif using gdaltools (first I creat a vrt(*) and
then
a geotif) and created the animation in Opticks.
While I can use the arrows to display the bands, the play button
displays
band 1 for a long time and then band 2 for much less than a second. How
can
I get an automatic continuous "flip-flop" (alternate display of each
band for i.e. 1 sec?

Also, is it possible to save the animation as animated gif or any
other animation format?

Thanks.

Agus

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