(Created page with "== 3-D Sombrero Plot == {{ConsoleLine|octave:2>|tx {{Equal}} ty {{Equal}} linspace (-8, 8, 41);}} {{ConsoleLine|octave:3>|[xx, yy] {{Equal}} meshgrid (tx, ty);}} {{ConsoleLine|octave:4>|r {{Equal}} sqrt (xx .^ 2 + yy .^ 2) + eps;}} {{ConsoleLine|octave:5>|tz {{Equal}} sin (r) ./ r;}} {{ConsoleLine|octave:6>|mesh (tx, ty, tz);}} {{ConsoleLine|octave:7>|xlabel ("tx");}} {{ConsoleLine|octave:8>|ylabel ("ty");}} {{ConsoleLine|octave:9>|zlabel ("tz");}} {{ConsoleLine|octave:1...") |
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We can now print the plot to a file with: | We can now print the plot to a file with: | ||
{{ConsoleLine|octave:11>|print -dpng sombrero.png}} | {{ConsoleLine|octave:11>|print -dpng sombrero.png}} | ||
It | It might take a few seconds to produce the file; be patient. | ||
To enable web server access, you need to adjust the file's permissions. You can do this from within Octave using the following command: | |||
{{ConsoleLine|octave:12>|system("chmod -R a+rX ~/www")}} | {{ConsoleLine|octave:12>|system("chmod -R a+rX ~/www")}} | ||
When the prompt returns, the file | When the prompt returns, you can view the file in a browser. Every user has a personal URL. Your file can be viewed here: {{PersonalURL|path=sombrero.png}} | ||
{{MerlinMultipageExperienceNavBar}} | |||
Latest revision as of 12:21, 14 April 2022
3-D Sombrero Plot[edit]
octave:2> tx = ty = linspace (-8, 8, 41);
octave:3> [xx, yy] = meshgrid (tx, ty);
octave:4> r = sqrt (xx .^ 2 + yy .^ 2) + eps;
octave:5> tz = sin (r) ./ r;
octave:6> mesh (tx, ty, tz);
octave:7> xlabel ("tx");
octave:8> ylabel ("ty");
octave:9> zlabel ("tz");
octave:10> title ("3-D Sombrero Plot");
We can now print the plot to a file with:
octave:11> print -dpng sombrero.png
It might take a few seconds to produce the file; be patient.
To enable web server access, you need to adjust the file's permissions. You can do this from within Octave using the following command:
octave:12> system("chmod -R a+rX ~/www")
When the prompt returns, you can view the file in a browser. Every user has a personal URL. Your file can be viewed here: You must be logged in to view your personal URL.
