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Krupski
Joined: 04 Dec 2006
Posts: 2
Location: Northeast USA
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 Posted: Fri Jun 07, 2013 12:35 pm Post subject: Can I do this - or - feature suggestion! |
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Hi all (and of course Mr. Hyde!):
I am wondering, with the current version of DPlot, is it possible to "scan" a graph and output it's data points?
To clarify what I'm asking, say I import a generated WAV file, then do an FFT on it (which gives me a new plot on top of the WAV file plot), can I somehow "save" the data from the FFT plot to an output file (a CSV, GRF, whatever)?
Note that I may have modified the plot (operated on X and/or Y axis data, "zoomed" into a certain area, etc...) and I would want to be able to output the data represented by what I see (WYSIWYG).
If there's a way to do this, I would be interested to know, and if not, David here's a feature suggestion for you!
Thanks!
-- Roger
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DPlotAdmin
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Joined: 24 Jun 2003
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Location: Vicksburg, Mississippi
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| Posted: Fri Jun 07, 2013 3:42 pm Post subject: |
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I must not understand your question. As best as I can tell you just want to select File>Save As and select "Comma-separated values (*.csv)" in the "Save as type" box. But it can't be that simple or you'd have already seen that.
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Krupski
Joined: 04 Dec 2006
Posts: 2
Location: Northeast USA
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| Posted: Mon Jun 17, 2013 8:18 pm Post subject: |
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| DPlotAdmin wrote: | | I must not understand your question. As best as I can tell you just want to select File>Save As and select "Comma-separated values (*.csv)" in the "Save as type" box. But it can't be that simple or you'd have already seen that. |
Thanks for the reply. You're right, it's not that simple. I know I can save the entire dataset. What I would like to do is zoom into a certain part and save that area.
While I'm asking how to do things and/or making a feature request, another thing I would like to be able to do is have a "reload" button.
For example, I generate some data with an external program. Then I do "File/Open" to graph the data. Then I make a change to the external program and re-generate new data with the same filename. Instead of using "File/Open" again, I would like to click "reload" and have the file re-loaded, either as a NEW plot or as a REPLACEMENT plot (which one it does could be a config option - or it could be two separate buttons "Reload" and "Refresh" maybe?).
This would allow me to generate data, "quick view" it, tweak the program, "quick view" the results, etc...
Thanks!
-- Roger
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DPlotAdmin
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Joined: 24 Jun 2003
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Location: Vicksburg, Mississippi
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| Posted: Tue Jun 18, 2013 12:42 pm Post subject: |
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| Quote: | | I know I can save the entire dataset. What I would like to do is zoom into a certain part and save that area. |
That's easy enough, but then so is Crop followed by Save As, right? And if you want to keep all of the data, just do an Undo after the Save As.
The "reload" thing I'm not sure about. What should happen if your plot has multiple curves from different sources? I guess the obvious answer is re-read all of them. One problem with that is DPlot doesn't currently track filenames for multiple curves (or the options used to read them). And it might also be confusing if one or more curves didn't come from a file, but were generated, pasted from the clipboard, sent via DDE, etc. But I will think about it.
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Roberto
Joined: 16 Mar 2008
Posts: 102
Location: Netherlands Beek en Donk
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| Posted: Mon Dec 09, 2013 1:56 pm Post subject: What about real "scan" :-) |
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This topic made me come up with an other possible useful feature once it exists:
Imagine one edits a graph in image format. E.g. he erases redundant image parts but only keeps the curve (or traces it on a new layer in an image editor).
Going to DPlot the saved curve-only image could be imported, horizontal and vertical axes could be set and the imported image could be resized until it corresponds with the grid.
From this point DPlot could automatically convert the image to a two-color image, generate data points based on scanning the image pixel by pixel while looking for non-background color pixels and using the actual image size (relative to DPlot grid) as a reference.
From there one would have an editable curve and the imported image could be removed from the DPlot file again.
Just a thought but an interesting one if you ask me. Once that feature would be in there I think it would actually come to handy 
Roberto
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DPlotAdmin
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| Posted: Mon Dec 09, 2013 3:01 pm Post subject: |
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Digitizing a picture isn't likely to ever happen with DPlot. There are excellent products out there that will convert an image to data. DigitizeIt (http://www.digitizeit.de/) is one I've used and it works quite well.
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Roberto
Joined: 16 Mar 2008
Posts: 102
Location: Netherlands Beek en Donk
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| Posted: Fri Dec 27, 2013 5:13 pm Post subject: |
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Thanks David!
DigitizeIt indeed looks interesting and seems to do exactly what I had in mind
Guess it makes no sense to add it to DPlot (work vs price of "competition")
Sorry for the late reply: I think I never received a reply notification email.
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Roberto
Last edited by Roberto on Fri Dec 27, 2013 5:25 pm; edited 1 time in total |
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