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Diagonal Line in fill plot?

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Jake Simmonds
Jake Simmonds 2018-11-20
评论： Jake Simmonds 2018-11-20
Got i hope a simple question for you all , in my foillowing code i have a random diagonal line and i have no idea where it is coming from?
any help would be great thank you in advance :)
RoadVerts =[-1, 9, 9, 11, 11, 21, 21, 11, 11, 9, 9, -1, -1
11, 11, 21, 21, 11, 11, 9, 9, -1, -1, 9, 9, 11
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1];
fill(RoadVerts(1:1,:),RoadVerts(1:2,:),'w');
xlim([0 20])
ylim([0 20])
zlim([0 5])

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Jan
Jan 2018-11-20
编辑：Jan 2018-11-20
I guess you mean the diagonal from (0,0) to (21,21). Change the fill command to:
% Was: fill(RoadVerts(1:1,:),RoadVerts(1:2,:),'w');
fill(RoadVerts(1,:), RoadVerts(2,:), 'w');
1:1 can be simplified to 1, and 1:2 as second coordinate is most likely a typo.

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