more legible geo-types debug output (WKT-ish) #1302
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michaelkirk
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FIXES #564 Note: Most of the output is valid WKT, but not all of it is. For example, there is no RECT or TRIANGLE type in standard WKT. And there are certain invalid representations you can make in geo that are not valid WKT, but for a debug output format we still need to print *something* e.g. a polygon with interiors but no exterior: `POLYGON(EMPTY,(1 2,2 4))`
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michaelkirk
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Jan 16, 2025
| #[cfg(feature = "std")] | ||
| #[cfg(test)] | ||
| mod tests { | ||
| use super::*; |
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The tests are pretty comprehensive, and the best place to see what's what.
michaelkirk
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Jan 16, 2025
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| let rect = Rect::new((3, 4), (1, 2)); | ||
| // output is always (min, max) | ||
| assert_eq!("RECT(1 2,3 4)", format!("{rect:?}")); |
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Here's an example of output that's not actually WKT, but I think it's still intuitive.
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I think "don't let the perfect be the enemy of the good" is the right approach here w/r/t/ validity. If it's easy to get 95 % of debug output straight into TestBuilder (etc), and the other 5 % requires some light search and replace, that's still a huge improvement. |
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CHANGES.mdif knowledge of this change could be valuable to users.FIXES #564
I've wanted this for a long time! Inevitably for any project using geo I end up pulling in some other crate to produce debug output (usually wkt). The writing portion of wkt is pretty short (parsing is a little trickier) which is why I opted to copy the logic rather than relying on the wkt crate or something.
Note: Most of the output is valid WKT, but not all of it is.
For example, there is no RECT or TRIANGLE type in standard WKT.
And there are certain invalid representations you can make in geo that
are not valid WKT, e.g. a polygon with interiors but no exterior. I'm not sure if it's valid WKT, but we need to print something meaningful, in this case:
POLYGON(EMPTY,(1 2,2 4)).