Can anyone please confirm that yes/no Gnuplot 4.5 (on CVS) can output 2D animated PNG files? I have numerous datasets but one line that I'd like to show iteratively in 3 different places in my graph. Can this be done directly from gnuplot or is this something that would need to be animated externally from multiple frames?
You can find the demo scripts for the CVS version here. There is a C2Gnuplot for creating gnuplot animations (self-advertisement: it was developed by me).
Related
I'm using the print function in MATLAB to write images of plots, something like that
print(figure(1),'-dpng','-r300',filename);
But apparently the images are not overwritten, and the original images stay. I was using saveas before, which seems to overwrite the images, but print gives me more output options. Any ideas?
UPDATE: I ended up deleting the files before the printing with a different function.
You can use this:
im = frame2im(getframe(gcf,rec)); %Grabs image of plot as an image
imsave(im, filename); %save image
That syntax may not be 100%, its a while since I've used it.
Also be aware that this isn't perfect - I remember having issues with it grabbing a grey border around the edge of the plot. Also, I think the image may be based on a matlab screenshot.... just something to be aware of
Saving figures in matlab is rather troublesome, especially if the saved image should look like the original figure.
For myself i found the solution in using export_fig.
It's one of the most downloaded fileexchange files - maybe you should give it a try:
http://www.mathworks.de/matlabcentral/fileexchange/23629-export-fig
A small introduction to export_fig can be found at:
https://github.com/ojwoodford/export_fig/blob/master/README.md
I'm currently looking for a way to create a 'configurator' for a upholsters, similar to http://digitaldraping.com/configurator/furniture-sofa/?Cushions_Plain-Cream.png,Sofa_Stripe-Orange.png - you select your fabrics and they are 'drawn' on the sofa automatically.
Unfortunately, all the sites I've looked at seem to use pre-rendered transparent PNGs that are overlaid over each other to build up the full picture. The problem here is that we've figured out that we'd require over 120,000 different images to cover all models, fabrics etc!!
I've looked at a few 3d texture tools such as http://www.arahne.si/products/arah-drape.html, hoping that one of them would have a CLI option where you give it a pre-created wireframe, and a fabric to overlay, and it generates the required image on the fly, but so far everything seems to require real-time use of the GUI to use it.
So, is there a CLI tool that would do what I'm after, or can anyone suggest a way to manipulate the GUI automatically? (from a tech point of view, I'm comfortable with C, Bash, Python or PHP as a solution!)
Thanks!
ArahDrape 2.2 can now work from a command line without any GUI interface. You can also call ArahDrape as a C library. In this way, it can be used in a web server to create texture mapped images on the fly. The command line options are explained below.
ArahDrape 2.2j command line version, ©2015 Arahne
usage:
adCommand -o /tmp/outputImage.png -tN /home/user/texture.png [-hidemodel] [-divide 2] [-filterPNG] [-compressPNG 2] [-m /home/user/model.png] -owner name -activation 174b3cfb49e9 /home/user/project.drape
Input and output images can have png, .tif or .jpg extensions
-o output_image_file
-tN texture_image_file [N goes from 0 to 199]
-hidemodel will render all areas not in region as white
-divide N [N goes from 2 to 5] divide resulting image pixel size
-filterPNG if you do not filter it, rendering is faster
-compressPNG N [N goes from 0 to 9] lower number saves faster, but bigger files
-m model_image_file use this if you want to replace model image from the project; must have same pixel size
-owner owner_name pass the given owner name
-activation activation_code pass the given activation code
last parameter should be ArahDrape project file
All files should be entered with full path.
If you need spaces in filenames, use quotes "" around the filename.
If you provide only Owner name, without activation code, program returns registration code.
ArahDrape supports batch export.
Open ArahDrape project, click on texture you wish to replace, put all your texture in a directory, select from menu
Textures > Browse textures, and as you click the texture to load it, program will save the draped picture. If you have thousands of images, use keyboard shortcut = and program will automatically do them all.
Alpha channel transparency is supported in loading model images or textures, and saving the draped images, as long as you use PNG or TIFF.
Please check this video to see how
ArahDrape works in batch mode.
we (http://digitaldraping.com/) can do just what you are asking. We have two options creating images and rendering a meshed image on the fly. Just get in touch if you still need this solution.
I'm looking for a tool I can use via command line (windows 7) to merge two equally sized pngs. I'm not having much luck with search so far as most tools I've seen are pretty heavy applications which don't seem to target simple manipulations.
I want to overwrite the bits in the opaque base image with the non-transparent pixels in the overlay image. I have photoshop CS4 as well, but haven't had much luck in finding the relevant command line arguments.
ImageMagick has a command line tool called composite which will do what you want. Distributions available for Windows, Mac, Linux etc. I've just tested it with two transparent PNGs and works as expected.
composite foreground.png background.png newimage.png
I'm starting to work on a college project (for Computer Graphics) .... I wanted a library that could do 2d drawings and I came across Cairo. But the thing is, there arent many samples/tutorials/programs on ruby and cairo. Every program i came across, saved an image onto a file.
Can anyone please tell me a way to display these drawings on a window (or a console)??
... and since I'm at the beginning of my project, I wouldn't mind looking into any other alternative library if you can suggest any.
Thanks!!
There is a good tutorial at http://zetcode.com/tutorials/cairographicstutorial/ (and http://zetcode.com/tutorials/rubygtktutorial/cairo/ for Ruby) which shows how to draw basic shapes, line drawings and text on a Cairo surface within a GTK program.
I need to import animations from Maple into my LaTeX/Beamer presentation. I save a file in GIF format. But later I have problems converting that file into PNG. All I get is a static PNG file and can't proceed ((( What's the full code to do that in LaTeX?
You can use the animate package to animate a series of PNGs. To get the series of PNGs from an animated GIF, use a tool like ImageMagick's convert.
Does this help: LINK? (This is the same answer as marcog... just wanted to provide a reference to it being asked previously -- the solution was the same: the animate package).
Also, your OS will matter. I don't know that Linux (not saying you're using it) has any ability to play animated PDFs. I've tried embedding movies using LaTeX and while it "works," you can't actually view them in anything Linux offers yet. Okular is working on it, but last I checked (couple months?) it's not possible yet.
Anyway, just wanted to add that just in case you were doing everything completely right and by chance are not seeing the fruits of your labor since you're using a Linux viewer. Check your work with Acrobat on Windows to be sure.