Ticket #1662 (closed defect: invalid)
gnuplot issues [with incorrect patch idea]
|Reported by:||was||Owned by:||was|
Background: For the analysis of some experimental data I am using sage's notebook. several functions that I have written work together to turn the input datafile from a silly propitiatory program into a nice simple text file of x, y and z values separated by 1 space e.g. 17 17 17 17 17 18 17 18 19 18 19 16 19 16 16 16 16 18 16 18 18 18 18 20 for that particular dataset it goes on for 668 lines in the same vein. After coaxing these files into existence with their nice simple coordinates, I want to plot them using gnuplot. Because I know this works with both the version of gnuplot I have installed on my Ubuntu 7.10 computer and the version contained in the optional sage package. gnuplot creates nice interactive 3D XYZ scatter graphs using these files that have been created through the sage notebook. the command: splot '/home/user/dropexp/xyz_8.txt' typed at the interactive gnuplot command line causes the nice interactive graph to be displayed. Now I want to do this from the sage notebook and I can almost do it. by modifying ~/bin/sage-2.8.15/devel/sage-main/sage/interfaces/ gnuplot.py http://max.randor.googlepages.com/gnuplot.py http://max.randor.googlepages.com/gnuplot.patch and replacing a %s with a '%s' (This stops it doing what it normally does and _should_ make it do what I want it to do (I hope)) I can do: " g = Gnuplot() g.plot3d('/home/user/dropexp/xyz_8.txt') gnuplot> splot '/home/user/dropexp/xyz_8.txt' ^ "/home/user/.sage//temp/computer/13838//gnuplot", line 15: All points z value undefined " however as you can see from: http://max.randor.googlepages.com/xyz_8.txt there are z values, and exactly the same command (splot '/home/user/ dropexp/xyz_8.txt') works when used at the gnuplot command line. somewhere along the line perhaps in the options that gnuplot uses the z values have been removed or ignored. before I modified gnuplot.py I got an error message telling me that my file was not a function, my change fixed that error to give me another one. So it does not work. which is _annoying_ I was wondering if anyone has any ideas that might help? Thank You --- Shortly after posting I worked out how to fix it myself. Sorry. As a consequence of editing the wrong file I can no be sure that the patch file is for the same file as sear distributes, but it is close.
To make it work I just had to do a few more modifications to the gnuplot.py file to make it capable of taking x,y and z values. Hurray for open source. Thank you.
- Summary changed from gnuplot issues (with something that can probably easily be made into a patch) to gnuplot issues [with incorrect patch idea]
- Milestone changed from sage-2.10 to sage-2.10.1
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