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coordinates for some polygons are truncated #1

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jmcbroom opened this issue Oct 8, 2015 · 3 comments
Closed

coordinates for some polygons are truncated #1

jmcbroom opened this issue Oct 8, 2015 · 3 comments
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@jmcbroom
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jmcbroom commented Oct 8, 2015

pointed the script from the command line at

http://arcgisserver.semcog.org/arcgis/rest/services/BuildingFootprints/MapServer/2/query

to test it out. here's what the PG layer looks like loaded up in QGIS:

screen shot 2015-10-08 at 1 14 53 pm

about 100 of the features had one point with the longitude "cut off", like so:

{"type":"MultiPolygon",
"coordinates":
[[[[13506280.5777559,333401.299540699],
[13506310.0249344,333343.036089242],
[13506340.0593832,333358.21620737],
[13506328.0534777,333381.971128613],
[13506367.4163386,333401.865813643],
[13506374.8458005,333387.16568242],
[13506377.1305774,333388.320538059],
[13506418.2496719,333306.963910773],
[13506379.3402231,333287.298556462],
[13506375.7244094,333294.452755913],
[13506361.0564304,333287.039370075],
[13506355.8576116,333297.324803144],
[13506304.769685,333271.503937006],
[13506290.8940289,333298.957349077],
[13506260.234252,333283.461614177],
[13506281.8251313,333240.742454067],
[13506248.2788714,333223.787729681],
[13506209.5357612,333300.443241477],
[13506204.3818897,333297.838254586],
[13506192.8385827,333320.676837265],
[13506199.593832,333324.090879261],
[13506184.5462598,333353.863188982],
[13506214.8070866,333369.157480329],
[13506217.8507218,333363.135170624],
[13506248.6558399,333378.704724416],
[13506231.7276903,333412.198490813],
[13506251.5400263,333422.212270334],
[1350624,333437.130577445], // <<< problem coordinate!
[13506328.9796588,333480.080708683],
[13506341.3802493,333455.545275584],
[13506336.2562336,333452.955708668],
[13506340.6925852,333444.177821532],
[13506329.5485564,333438.545603678],
[13506334.5790682,333428.592847779],
[13506280.5777559,333401.299540699]]]]}
@johnjreiser
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It looks like I'm mishandling integer coordinates. I'll look into it as soon as possible.

@jmcbroom
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jmcbroom commented Oct 8, 2015

i queried the mapserver for this feature to get the true coordinate. it looks like an issue with coordinates that don't have a decimal:

the coordinate is supposed to be:

[13506244,333437.13057744503]

thanks, this is a really great script, i plan on contributing soon!

@johnjreiser johnjreiser self-assigned this Oct 8, 2015
@johnjreiser
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I did not properly escape the strings passed to re.sub that perform some of the string munging. This has been fixed in the latest commit: 32d90cd

Thanks for the heads up and let me know if you need anything else!

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