Problem using LineStyle

2011 4 5
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When I use LineStyle to only change the shape of the line, it works fine. When I use it to change the color, it gives me this error:
??? Error using ==> line Bad property value found. Object Name : line Property Name : 'LineStyle'.
For example,
line(....'LineStyle', ':') works fine, but line(....'LineStyle', 'k:') will cause a crash
Can someone explain why?

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Luke Chen
Luke Chen 2011-4-5

0 个投票

I am writing this function:
function finalPositions = networkEdit(weights, names, nodeStyle, linkStyle)
linkStyle is one string that determines the shape and color of all lines in the subsequent plot. So if linkStyle = 'k:', it should make all lines black and dotted. If I want black dotted lines, do I have to take linkStyle and break it up into 'k' and ':' or is there a way to use the string 'k:' without breaking it up?

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Matt Fig
Matt Fig 2011-4-5
This kind of double argument is meant for the PLOT function, which creates lines. If you want to do it that way, use PLOT. Otherwise you will have to break it up or make two input arguments.
Luke Chen
Luke Chen 2011-4-5
For my program, I have a bunch of points that are plotted using the plot() function. Only some of these points are connected by lines, and the lines are specified only after the points have been plotted. Thus, I had to use the line() function to draw the lines in between points.
In this case, if I put LineStyle with the plot() function, will it affect the lines I draw later using the line() function?
Matt Fig
Matt Fig 2011-4-5
PLOT and LINE can be made to do the same thing. One is more convenient for one kind of data, that is all. For example, these are identical:
subplot(1,2,1)
plot([0 0],[0 1])
subplot(1,2,2)
line([0 1;0 1],[0 0;1 1])
xlim([-1 1])
So you can translate any graph made by a call to PLOT into a similar graph made by a call to LINE.
Luke Chen
Luke Chen 2011-4-5
I just tried using plot to draw the lines and I used the double arguments like 'k:' and it still gives the same error
Matt Fig
Matt Fig 2011-4-5
Then you did something else wrong.
plot(1:2,3:4,'k:') % Works for me....
Luke Chen
Luke Chen 2011-4-5
Deleted 'LineStyle' from the arguments and it works now.
Thank you so much

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更多回答（1 个）

Matt Fig
Matt Fig 2011-4-5

0 个投票

That is because you are using the LineStyle property to try to change the Color property.
L = plot(1:10);
set(L,'linestyle',':','color','k')

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