Editing Plot comparison

* Generated on 06-Jan-2020 22:54:31 by html_compare_plot_demos with GNU Octave 6.0.0
* gnuplot 5.2
* Qt-painters
* Qt-opengl
* ML2019

Visual comparison of plot files from http://josoansi.de/octave_plot_compare/compare_plot_demos_01.html until compare_plot_demos_09.html

* [http://josoansi.de/octave_plot_compare/compare_plot_demos_01.html Page 1: annotation .. colorbar]
* [http://josoansi.de/octave_plot_compare/compare_plot_demos_02.html Page 2: colorbar .. daspect]
* [http://josoansi.de/octave_plot_compare/compare_plot_demos_03.html Page 3: daspect .. hsv]
* [http://josoansi.de/octave_plot_compare/compare_plot_demos_04.html Page 4: image .. legend]
* [http://josoansi.de/octave_plot_compare/compare_plot_demos_05.html Page 5: legend .. movie]
* [http://josoansi.de/octave_plot_compare/compare_plot_demos_06.html Page 6: ocean .. quiver]
* [http://josoansi.de/octave_plot_compare/compare_plot_demos_07.html Page 7: quiver .. shrinkfaces]
* [http://josoansi.de/octave_plot_compare/compare_plot_demos_08.html Page 8: shrinkfaces .. text]
* [http://josoansi.de/octave_plot_compare/compare_plot_demos_09.html Page 9: text .. zoom]

You can find the scripts which are used to create these plots in scripts/testfun/private.

== Problems ==

* ML2019 can't process the generated script and shows "The input was too complicated or too big for MATLAB to parse.". A workaround is to split the script into two parts, replicate the preface (approx. the first 80 lines, adapt the diary log and duplicate the "Helper functions" part at the end of the script (this wasn't done in this run)

* Differences between Matlab and Octave are at this bug report: https://savannah.gnu.org/bugs/index.php?57553

= Attention: The info below is from 2016 and is *outdated* =

== Qt ==

* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_02.html#copyobj_01 copyobj_01: Second line, legend and marker missing]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_02.html#colorbar_19 colorbar_19: no colorbar]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_03.html#hold_06 hold_06: transparency?]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_03.html#imshow_07 imshow_07: ???, gnuplot does the same as matlab...]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_03.html#fill_01 fill_01: Hidden edge is visible]

* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_07.html#stem_06 stem_06: Vertical lines to the marker missing]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_07.html#stem_07 stem_07: Vertical lines to the marker missing]

* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_07.html#shrinkfaces_02 shrinkfaces_02: wrong zoom]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_07.html#shrinkfaces_04 shrinkfaces_04: wrong zoom]

== gnuplot 4.6 ==

There are a lot of gnuplot differences and it might be nice to fix those, but someone would have to take an interest. Octave is moving towards OpenGL for all plotting so most developers focuses on
bug fixes for that toolkit.

* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#annotation_01 annotation_01: Circle is missing]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#annotation_02 annotation_02: gnuplot boxes are wrong]
* <strike>[http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#annotation_05 annotation_05: gnuplot uses dotted lines instead of solid line]</strike>
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#annotation_06 annotation_06: annotation is shifted]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#area_01 area_01: legend is cutted]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#axis_02 axis_02: xy plot yaxis inverted]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#autumn_01 autumn_01: y-axis inverted + no color]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#colorbar_01 colorbar_01: inverted colorbar]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#colorbar_02 colorbar_02: horizontally swapped colorbar]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#colorbar_07 colorbar_07: upper right colorbar is inverted]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#colorbar_08 colorbar_08: right colorbar is inverted]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#colorbar_12 colorbar_12: right colorbar is inverted]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#colorbar_14 colorbar_14: upper colorbar is inverted]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_02.html#colorbar_20 colorbar_20,21,22,23: inverted colorbar]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_03.html#fill_03 fill_03: no gradient]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_03.html#hot_01 hot_01: lower plot yaxis inverted]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_07.html#shrinkfaces_02 shrinkfaces_02: wrong vertexes]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_07.html#shrinkfaces_04 shrinkfaces_04: wrong vertexes]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_08.html#trimesh_01 trimesh_01: invisible lines. Qt plot is fine.] {{ bug |42561}}

== Qt and gnuplot (independent of the used graphics_toolkit)==

* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#annotation_03 annotation_03: currently not all "headstyle" properties implemented which matlab has]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#annotation_04 annotation_04: ??? What's correct here?]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#area_01 area_01: Different colors, white vertical lines in FLTK/Qt]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#cmpermute_01 cmpermute_01: No plot]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_02.html#colorbar_23 colorbar_23: xtick unreadable. It should check the text_extent and reduce xticks if the xlabels would overlap]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#colorbar_01 colorbar_01: This is just a matter of taste but I (Andy1978) would prefer a  smaller gap (only 40% of the current implementation?) between colorbar and the plot like matlab does]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_02.html#bar_01 bar_01: Bars heights difference between octave and matlab]

== Matlab errors due to incompatibilities ==

* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#axis_03 axis_03: Error using axis (line 204). Unknown command option ticx.]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#axis_04 axis_04: Error using plot. Error in color/linetype argument.]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_01.html#brighten_01 brighten_01: Error using axis (line 204). Unknown command option ticy.]
* [http://josoansi.de/octave_plot_compare_old/compare_plot_demos_02.html#colorbar_19 colorbar_19: Error using matlab.graphics.illustration.ColorBar/set. There is no yscale property on the ColorBar class.]

== won't fix or Octave only feature ==

* fltk/ML axis_09, axis_10, axis_11, axis_12, axis_13:  No, [x,y]axislocation' 'zero' (http://savannah.gnu.org/bugs/?40588). This is an Octave (and gnuplot) only feature. We can either blacklist, or visually skip over the comparison since it is blank for Matlab. Perhaps should be removed from demos or blacklist axis_09 in dump.m script
* matlab comet3_01, comet.png: Only the beginning of the animation is printed. Matlab implements comet in a completely different way which means printing isn't really possible for them.
* matlab polar_03, polar_05: Modifying ticks for rho (rticks) and theta (tticks) is an Octave addition.
* matlab polar_04: Modifying color and text properties in polar plot is an Octave addition.
* Multiple Matlab plots with "Error in color/linetype argument". This is because adding legend keys with ";" in plot like "plot(1:10, "; a ramp;)" is an Octave only addition.