Description

wkerzendorf

opened on Jun 12, 2011

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arrow(3000, 5e-15, 0, .5e-15)
ylim(0,1e-14)
xlim(2000, 4000)

should print a line from 3000, 5e-15 to 3000 5.5e-15, but it plots a line that goes much higher that 1e-14.

Cheers
Wolfgang

Activity

1. ghost assigned

   leejjoon

   on Jun 15, 2011
2. leejjoon commented on Jul 10, 2011

   

   leejjoon

   on Jul 10, 2011

   Contributor

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   While this is not apparent in the documentation of the "arrow" command, it is implicitly assumed that dx, dy is the length of the arrow "without the head", and the length of the head is 0.0015 by default. This is why your result seems wrong.

   You may try to fix this with by setting the head_length explicitly.

   arrow(3000, 5e-15, 0, 1e-15, head_length=5.e-16, width=100)

   However, remember that "arrow" command draws the arrow in the data coordinate, and I recommend you to use command like "annotate" instead.

   I consider this is a bug in the documentation and will commit fix soon.
3. leejjoon

   closed this as completedin fc52ce5on Jul 28, 2011

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