bugGNU Octave - Bugs: bug #31761, edgecolors broken for two mesh...

 
 

bug #31761: edgecolors broken for two mesh plots in one axes

Submitter:  Thorsten Meyer <tmeyier>
Submitted:  Thu 02 Dec 2010 09:28:59 PM UTC
   
 
Category:  Plotting with gnuplot Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Incorrect Result
Status:  Fixed Assigned to:  None
Originator Name:  Open/Closed:  * Closed
Release:  * dev Operating System:  * GNU/Linux
Fixed Release:  None Planned Release:  None
* Mandatory Fields

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Wed 06 Jul 2016 07:23:08 PM UTC, comment #5: 

Yes, I checked on Linux and this bug is fixed with the dev version of Octave.  Closing report.

Rik <rik5>
Group administrator
Wed 06 Jul 2016 05:15:48 AM UTC, comment #4: 

This bug seems to be solved on Windows using dev. branch with gnuplot ver 5.0.3, but not in Octave 4.0.3 (same gnuplot version).

Can someone check this in Unix?

Avinoam Kalma <avinoam>
Group Member
Mon 19 Jan 2015 09:04:27 PM UTC, comment #3: 

@Avinoam: You're right.  The problem is the hidden3d line, but I also don't see an easy way to fix it.  When the facecolor is white (opaque) the mesh shouldn't show objects behind the mesh.  This implies setting hidden3d.  On the other hand, setting that seems to screw up the edge coloring.  Unless someone is very clever and understands gnuplot well we might just have to leave this behavior in place.

Rik <rik5>
Group administrator
Sat 17 Jan 2015 10:12:00 PM UTC, comment #2: 


The problem is caused by "set hidden3d" line in
__go_draw_axes__.m
(similar to bug 39585).

I do not know how to solve it, but it seems that
if the graphics object has a color (edgecolor?) property assigned,
hidden_removal should be set to false.

Avinoam Kalma <avinoam>
Group Member
Thu 09 Dec 2010 04:55:01 PM UTC, comment #1: 

Confirmed on a recent tip (11329:6b073da9d7fc).

Rik <rik5>
Group administrator
Thu 02 Dec 2010 09:28:59 PM UTC, original submission:  

was #31780 before savanna went down.

I see the following strange color effects on debian testing with gnuplot 4.4
patchlevel 0 but not with the fltk backend.


x = logspace(1,3,30);
y = logspace(1,3,30);
z = (1001-y')*(1001-x);

h1 = mesh (x, y, z);
hold on
h2 = mesh (x, y, 2*z);
hold off
# up to here everything is fine.
pause
set (h1, 'edgecolor', 'blue');
# now the first mesh is white on white
pause
set (h2, 'edgecolor', 'red');
# now both meshes have the same colors, blue from above
# and red from below



Thorsten Meyer <tmeyier>

 

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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-07-06 rik5 StatusConfirmed Fixed
        Open/ClosedOpen Closed
    2010-12-09 rik5 StatusNone Confirmed

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