User:Tohline/vtk/MovieMaking - Revision history

Tohline: /* Creating the Animation */

2021-05-31T21:22:22Z

Creating the Animation

← Older revision		Revision as of 21:22, 31 May 2021
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	==Creating the Animation==		==Creating the Animation==
	===Animated GIF===		===Animated GIF===
			====Using ''convert''====
	* Via the Mac's terminal window, change directories into the folder that contains the image sequence.		* Via the Mac's terminal window, change directories into the folder that contains the image sequence.
	* As necessary, rename image files in order to define the desired image sequence:		* As necessary, rename image files in order to define the desired image sequence:
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	* Finally, rename the "Output.gif" file to something that better identifies the content; upload the renamed "Output.gif" file to the VisTrails wiki site; and insert it into the desired wiki page just as you would insert a single image.		* Finally, rename the "Output.gif" file to something that better identifies the content; upload the renamed "Output.gif" file to the VisTrails wiki site; and insert it into the desired wiki page just as you would insert a single image.

			====Using Keynote====
			On 30 May 2021, I acquired a new iMac to replace the (desktop) Mac Pro that I have relied on since 2010. This new system's "Big Sur" (v11.4) macOS encounters an error when I try to execute ''convert''; I think this is because convert's binary executable is incompatible with my new iMac's CPU hardware. [https://support.apple.com/guide/keynote/create-an-animated-gif-tan30ff1f63c/mac Online discussions] appear to recommend that animated gifs be constructed using Apple's "Keynote" (''aka'' Powerpoint) utility.
			* Create a new, blank Keynote file;
			* Paste (drag-and-drop) the first gif image onto the first slide of this new file;
			* Add a second, blank slide to the Keynote file, then paste the 2nd gif image onto this slide;
			* etc.; [make sure each image sits in precisely the same position on each slide]
			* Under Keynote's "File" dropdown menu,
			** choose "Export to ... Animated gif ..."
			** identify the range of slides (e.g., 2 thru 28) that are to be incorporated into the animation, and the desired frame rate;
			** click "Next", etc.

	=Related Discussions=		=Related Discussions=

Tohline: /* Animated GIF */

2016-07-09T19:06:47Z

Animated GIF

← Older revision		Revision as of 19:06, 9 July 2016
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	* Type one of the following two commands (2nd one preferred!):		* Type one of the following two commands (2nd one preferred!):
	<pre>convert -set delay 3 -colorspace GRAY -colors 16 -dispose 1 -loop 0 -scale 50% *.png Output.gif</pre>		<pre>convert -set delay 3 -colorspace GRAY -colors 16 -dispose 1 -loop 0 -scale 50% *.png Output.gif</pre>
	<pre>convert -set delay 10 -colors 32 -dispose 1 -loop 0 -scale 100% Output.gif</pre>		<pre>convert -set delay 10 -colors 1024 -dispose 1 -loop 0 -scale 100% *.png Output.gif</pre>

	* Related information:		* Related information:
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	* Finally, rename the "Output.gif" file to something that better identifies the content; upload the renamed "Output.gif" file to the VisTrails wiki site; and insert it into the desired wiki page just as you would insert a single image.		* Finally, rename the "Output.gif" file to something that better identifies the content; upload the renamed "Output.gif" file to the VisTrails wiki site; and insert it into the desired wiki page just as you would insert a single image.


	=Related Discussions=		=Related Discussions=

Tohline at 18:52, 14 September 2015

2015-09-14T18:52:49Z

← Older revision		Revision as of 18:52, 14 September 2015
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	=Making a Movie=		=Making a Movie=
			Here are steps that can be followed to construct an animated gif (movie) from a set of images that have been constructed using VisTrails or MicroSoft's Excel.


	{{LSU_HBook_header}}		{{LSU_HBook_header}}

	=~~Generating~~ a Sequence of (PNG) Images=		==Generate a Sequence of (PNG) Images==

	==Inside VisTrails==		===Inside VisTrails===
			<!-- [[Image:LSUtest01.gif\|200px\|Test Animated gif]] -->
			<!-- [[Image:LSU_Stable.animated.gif\|74px\|Test Animated gif]] -->
			[[Image:pivotingBox03.gif\|right\|250px\|Test Animated gif]]
			* Use the "Explore" feature of VisTrails to sample a parameter range and thereby generate a sequences of spreadsheet images.
			** For example, vary the Camera's Azimuth by 3 degrees between images.
			** In order to ensure a reasonably good size/resolution for each image, we have found it beneficial to generate at most five images per "Explore" session.

			* 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.
			** If the images are laid out across the spreadsheet horizontally, by default, VisTrails will name the files: a1.png, a2.png, a3.png, etc.
			** If the images are laid out across the spreadsheet vertically, by default, VisTrails will name the files: a1.png, b1.png, c1.png, etc.

			===Inside Excel & Paintbrush===
			* Construct a 2D x-y plot with all of the detail that you would want to put in a single printed journal figure.
			* Take a snapshot of the figure:
			** Place the mouse cursor somewhere on the boundary of the figure frame;
			** CTRL-mouse-click generates a drop-down menu; selecting "Save as Picture …" copies a bitmapped image to the Mac's clipboard.
			* Open "Paintbrush" and paste the image into an otherwise blank window; save the image into the desired file folder.
			* Return to Excel; make the necessary changes in spreadsheet parameters to construct the next 2D x-y plot for the desired movie sequence; as before, save this new image (using a different, but preferably sequentially numbered) name into the desired folder.

	==~~Inside Excel~~==		==Creating the Animation==
			===Animated GIF===

	~~=Creating~~ the ~~Animation=~~		* Via the Mac's terminal window, change directories into the folder that contains the image sequence.
	~~==Animated GIF==~~		* As necessary, rename image files in order to define the desired image sequence:
			** The "convert" program (see next instruction step) expects the file names to be in a consecutively numbered sequence;
			** Assuming PNG-formatted image types, we recommend using the numbering sequence: a01.png, a02.png, a03.png, etc.
			** If you want a smooth back-and-forth animation loop and you are starting with 9 images (numbered a01 thru a09), make additional copies of images such that the entire animation is: 1-2-3-4-5-6-7-8-9-8-7-6-5-4-3-2. But the last seven images should be ''named'' a10.png, a11.png, a12.png … a16.png.
			* Type one of the following two commands (2nd one preferred!):
			<pre>convert -set delay 3 -colorspace GRAY -colors 16 -dispose 1 -loop 0 -scale 50% *.png Output.gif</pre>
			<pre>convert -set delay 10 -colors 32 -dispose 1 -loop 0 -scale 100% Output.gif</pre>

	~~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:
	~~<pre>convert -set delay 3 -colorspace GRAY -colors 16 -dispose 1 -loop 0 -scale 50% *.png Output.gif</pre>~~
	* Related information:		* Related information:
	** I initially extracted ~~this~~ recommended "convert" ~~instruction~~ from [http://pages.uoregon.edu/noeckel/MakeMovie.html Jens Nöckel's web site].		** I initially extracted the first of these recommended "convert" instructions from [http://pages.uoregon.edu/noeckel/MakeMovie.html Jens Nöckel's web site].
	** My Mac contains a manual on this "convert" instruction (man convert); it points out that, "The <b>convert</b> program is a member of the ImageMagick(1) suite of tools."		** My Mac contains a manual on this "convert" instruction (man convert); it points out that, "The <b>convert</b> program is a member of the ImageMagick(1) suite of tools."
	** The Mac's "convert" manual also refers to a [http://www.imagemagick.org/script/convert.php convert website].		** The Mac's "convert" manual also refers to a [http://www.imagemagick.org/script/convert.php 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.		* Finally, rename the "Output.gif" file to something that better identifies the content; upload the renamed "Output.gif" file to the VisTrails wiki site; and insert it into the desired wiki page just as you would insert a single image.

	~~<!-- [[Image:LSUtest01.gif\|200px\|Test Animated gif]] -->~~
	~~<!-- [[Image:LSU_Stable.animated.gif\|74px\|Test Animated gif]] -->~~
	~~[[Image:pivotingBox03.gif\|250px\|Test Animated gif]]~~

	=Related Discussions=		=Related Discussions=

Tohline: Begin new chapter to explain how to make and animation on the Mac

2015-09-14T18:05:26Z

Begin new chapter to explain how to make and animation on the Mac

New page

=Making a Movie=
{{LSU_HBook_header}}

=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:
<pre>convert -set delay 3 -colorspace GRAY -colors 16 -dispose 1 -loop 0 -scale 50% *.png Output.gif</pre>
* Related information:
** I initially extracted this recommended "convert" instruction from [http://pages.uoregon.edu/noeckel/MakeMovie.html Jens Nöckel's web site].
** My Mac contains a manual on this "convert" instruction (man convert); it points out that, "The <b>convert</b> program is a member of the ImageMagick(1) suite of tools."
** The Mac's "convert" manual also refers to a [http://www.imagemagick.org/script/convert.php 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.



[[Image:pivotingBox03.gif|250px|Test Animated gif]]

=Related Discussions=