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Re: st: Video from multiple graph exports


From   "Dan Weitzenfeld" <dan.weitzenfeld@emsense.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Video from multiple graph exports
Date   Wed, 3 Dec 2008 16:28:04 -0800

Thanks for suggestions, all.  I am playing around with ImageJ, and
will try MovieMaker.

Sergiy,

Basically I'm trying to overlay a graph on top of an image - the image
can be .jpg, .png, etc.  To give you a concrete example, one type of
data I work with is eye-tracking data, so I would like to - within
Stata - generate a graph in which the image/stimuli is the background.

The shp -> GIS package is an interesting idea, but it feels like
overkill because (with the help of -spmap-) Stata will do everything I
need except for putting a graph on top of an image.  I'll definitely
look into it, though.  Has anyone written a program that converts
-spmap- files (e.g. Basemap files) to .shp?



-Dan



On Wed, Dec 3, 2008 at 4:05 PM, Sergiy Radyakin <serjradyakin@gmail.com> wrote:
> Hi!
>
> I've done videos like that. Once you have all your frames in .png
> files, select all of them, drag and drop to the Windows MovieMaker,
> there check that they are in the proper sequence, and place them into
> the timeline. You can adjust the delay interval individually for each
> file or for the whole sequence. You can add a soundtrack right away.
> Then save as a video file (wmv).
> Example available.
>
> Alternatively, many viewers support command line activated slide show
> mode, for Windows platform, check free IrfanView, which is an
> excellent Viewer/Converter. I don't think you will have a lot of
> control though, e.g. setting individual delays for each file.
> http://www.irfanview.com/
> http://gd.tuwien.ac.at/graphics/irfantut/commopti.html
>
> As for Q2, Stata does not support JPG files for any purpose and you
> should not either. JPG is a format for digital photography, for
> noise-rich analog-to-digital conversion (via scanner of digital
> camera) from the real world to the world of computers. For images
> generated inside your computer, use one of the lossless formats, like
> png. Why don't you export your data to shp format from Stata and plot
> in a GIS package?
>
> Best regards, Sergiy Radyakin
>
>
> On Wed, Dec 3, 2008 at 2:49 PM, Dan Weitzenfeld
> <dan.weitzenfeld@emsense.com> wrote:
>> Hi Folks,
>> I'm considering making a movie using multiple Stata graphs, exported.
>> E.g., for t=0,1,...n, graphing the data at each t, and then using a
>> slide-show program to stack the graphs in time order, creating a
>> "movie" illustrating how the data changes over time.
>> My questions:
>>
>> 1.  Has anyone does this before, and if so, do you have
>> recommendations for the most flexible slide-show program?
>> Specifically, I'm wondering if there is a program that will allow for
>> variable intervals between slides (e.g., t=0, 1.5, 2, 2.2,....)
>>
>> 2.  Is there a way to overlay a Stata graph on top of a .jpg file?
>> I've been doing this manually, using -spmap- to plot my
>> location-oriented data, exporting graphs as .emf/.wmf, ungrouping the
>> result in PowerPoint and aligning the .jpg overlay.
>>
>> 3.  Am I trying to use Stata to do something it's not suited for?  I
>> know JMP can play movies from data, but I don't think the movies can
>> be exported, and, well, I'm partial to Stata.
>>
>> Thanks in advance,
>> -Dan
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-- 
Dan Weitzenfeld
Media Analyst
EmSense Corporation
512 2nd Street, 3rd Floor
San Francisco, CA 94107
w: 415.418.7314
m: 510.552.0106
dan.weitzenfeld@emsense.com
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