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Re: [ferret_users] vector/aspect question
Hi Billy,
| The lesson here is to always make maps
| of vectors in a viewport with the correct aspect ratio!
I think this is good advice. But, when your viewport does
NOT have the correct aspect ratio, which is more misleading,
a plot with the "aspect" qualifier or one wihtout it?
That may be a matter of taste or familiarity. _I_ would
be misled by a plot without the qualifier, because in my mental
image, a plot is on a rubber sheet with grid lines drawn on it:
You draw your vectors on the sheet and when you stretch it in one
direction, both the grid lines and vectors are CORRECTLY distorted.
That is, I perceive the directions (angles) of vectors in reference
to the grid lines not to the egdes of the physical paper.
So, my general rule is, always use vector/asp. Your advice
"use a viewport with the correct aspect ratio" satisfies both camps,
of course.
Cheers,
Ryo
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