Re: Issue with hggroup and zlim

On Sep 1, 2008, at 10:22 AM, David Bateman wrote:

> David Bateman wrote:
>> Ben Abbott wrote:
>>>
>>> I think that depends upon compatibility in other areas.
>>>
>>> Trusting my memory, plot3 (<real_matrix>, <real_matrix>,  
>>> <real_matrix>) produces a series of 3D lines in Matlab, but  
>>> produces a single line in Octave ... the Octave result will zig- 
>>> zag (see the code below)
>>>
>>>     [x, y] = meshgrid (0:10, 0:10);
>>>     z = x.*y;
>>>     figure(1)
>>>     clf
>>>     plot3 (x, y, z)
>>>
>>> Same for plot3 (<real_matrix>, <complex_matrix)
>>>
>>>     y = y + 1i*z;
>>>     figure(2)
>>>     clf
>>>     plot3 (x, y)
>>>
>>> This issue is what I think needs attention, and I have a faint  
>>> recollection that maintaining the complex_vector/matrix feature  
>>> was problematic.
>>>
>>> Ben
>>>
>> Ok, this is clearly a bug. I think the attached addresses this. and  
>> now
>>
>> [x, y] = meshgrid (0:10, 0:10); z = x.*y; figure(1); clf; h =  
>> plot3(x,y + 1i *z); zlim(0,100)
>>
>> and
>>
>> [x, y] = meshgrid (0:10, 0:10); z = x.*y; figure(1); clf; h =  
>> plot3(x,y,z); zlim(0,100)
>>
>> both work correctly on my machine. Note the zlim is needed to get  
>> around the issue addressed in
>>
>> http://hg.tw-math.de/octave-graphics-mq/rev/7747c2f2f3ed
>>
>> D.
>>
>>
>
> Please use the attached instead, that moves the color definition  
> inside the loop over the columns of the matrices so that  
> __next_line_color__ is called for each column.
>
> D.

Ok, I've pulled a fresh copy of jwe's sources (from velveeta) and  
built with no problems.

Unforunately, while the demos for plot3 run for me, but this example  
fails

octave:1>> x=ones(10,1)*(1:10);
octave:2>> y = x';
octave:3>> z = x.*y;
octave:4>> plot3(x,y,z)

      line 330: *All* edges undefined or out of range, thus no plot.

I have no idea what file the line number refers to. I added this as  
another demo and the line reference changed to 110. I tried fgrep to  
locate this error/warning/message but found nothing 

Ben