User:Tohline/vtk/MovieMaking

From VistrailsWiki
< User:Tohline
Revision as of 18:05, 14 September 2015 by Tohline (talk | contribs) (Begin new chapter to explain how to make and animation on the Mac)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

Making a Movie

Whitworth's (1981) Isothermal Free-Energy Surface
|   Tiled Menu   |   Tables of Content   |  Banner Video   |  Tohline Home Page   |

Generating a Sequence of (PNG) Images

Inside VisTrails

Inside Excel

Creating the Animation

Animated GIF

Here is a set of steps that can be followed to construct an animated gif (movie) from a set of images that have been constructed using VisTrails.

  • Use the "Explore" feature of VisTrails to sample a parameter range and thereby generate a sequences of spreadsheet images.
  • After viewing the spreadsheet results, use the spreadsheet's "Export/Separately" menu option to dump the image sequence into a new (otherwise empty) file folder. By default, VisTrails will name the files: a1.png, a2.png, a3.png, etc.
  • Via the Mac's terminal window, change directories into the folder that contains the image sequence. Type the following command:
convert -set delay 3 -colorspace GRAY -colors 16 -dispose 1 -loop 0 -scale 50% *.png Output.gif
  • Related information:
    • I initially extracted this recommended "convert" instruction from Jens Nöckel's web site.
    • My Mac contains a manual on this "convert" instruction (man convert); it points out that, "The convert program is a member of the ImageMagick(1) suite of tools."
    • The Mac's "convert" manual also refers to a convert website.
  • Finally, simply upload the "Output.gif" file to the VisTrails wiki site, then insert it into the desired wiki page just as you would insert a single image.

Test Animated gif

Related Discussions