How to prevent small lines from disappearing on zoom out?

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Chuck37
Chuck37 2019-1-16
评论： Walter Roberson 2019-1-17
I have a 2D curve that I am plotting as very small segments so I can change the color per segment. I have found that if I zoom out, the entire thing just disappears, perhaps due to some graphics optimization that considers each segment to be excessively small? Is there a way around this?
EDIT: For example:
for ii=0:1000
plot([0 0],[ii*0.01 ii*0.01+0.01],'linewidth',3)
hold on
end
Then,
axis([-100 100 -100 100])
At this point I have a blank plot.

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回答（1 个）

madhan ravi
madhan ravi 2019-1-17
Becuase you plot single points in every iteration and you haven‘t mentioned a marker for it
plot(...,'-ok','Linewidth',3)
% remove axis(...)
  2 个评论
Chuck37
Chuck37 2019-1-17
It's not single points, it's very short lines. The reason I'm doing it (not shown in example above) is to color each segment a custom color. If I switch to points, they lay on top of each other annoyingly. I started there and went to this solution instead. Of course, this is failing for a different reason.
Walter Roberson
Walter Roberson 2019-1-17
Look in the File Exchange for the colored line contribution based on surf or the one based on patch.

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