Re: Setting linestyle/color when plotting matrix.

[Ben Abbott]

*** Moved to the maintainers list ***

On Jul 5, 2012, at 7:34 PM, Ben Abbott wrote:

> On Jul 5, 2012, at 7:16 PM, Robert T. Short wrote:
> 
>> Suppose I am plotting a matrix, e.g.
>> 
>>> t = (0:0.01:1).';
>>> y = [sin(2*pi*t), sin(3*pi*t), sin(4*pi*t)];
>>> plot(t,y)
>> 
>> I can set color and linestyle using
>>> plot(t,y,['-r';'--k';':c']);
>> 
>> However if I try
>> 
>>> plot(t,y,'color', ['r';'k';'c'], 'linestyle',['-';'--';':']);
>> error: invalid value = -
>> error: set: invalid value for radio property "linestyle" (value = - )
>> 
>> similarly
>>> plot(t,y,'color', ['r';'k';'c']);
>> 
>> works but all of the lines are red.
>> 
>> How do I set line properties for matrices using color, linestyle, etc.?
>> 
>> I am using octave 3.6.2 on a debian system.
>> 
>> Bob
> 
> To handle multiple line objects use the returned objects handles.
> 
>       h = plot (x1, y1, x2, y2, x3, y3);
> 
> And then use the set() function to set the color, marker, linestyle, etc.
> 
> Ben

Robert,

Perhaps something similar to the behavior you had expected can be added to 
Octave.

        plot (t, y, "color", {"r", "k", "c"}, "linestyle", {"-", "--"; ":"});

I've attached a proposed patch. Does this look like a good idea?

Ben

parseprops.diff
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