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How to prevent small lines from disappearing on zoom out?

6 visualizaciones (últimos 30 días)
Chuck37
Chuck37 el 16 de En. de 2019
Comentada: Walter Roberson el 17 de En. de 2019
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.
  3 comentarios
Chuck37
Chuck37 el 16 de En. de 2019
See code above. Not worth posting a blank axis.
Image Analyst
Image Analyst el 16 de En. de 2019
Possibly just being subsampled away when it displays on your screen in much fewer number of pixels?

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Respuestas (1)

madhan ravi
madhan ravi el 17 de En. de 2019
Becuase you plot single points in every iteration and you haven‘t mentioned a marker for it
plot(...,'-ok','Linewidth',3)
% remove axis(...)
  2 comentarios
Chuck37
Chuck37 el 17 de En. de 2019
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 el 17 de En. de 2019
Look in the File Exchange for the colored line contribution based on surf or the one based on patch.

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