Closed pardis9 closed 9 years ago
@pardis9 it sounds like a projection issue. Can you tell me what coordinate system the source and destination should be in? Even better, point me to a specific feature you get back from the shapefile that isn't correct.
@wavded I'm a bit beyond my depths, here, but I think you're right. This post seems to reference the same question: http://gis.stackexchange.com/questions/52209/which-coordinate-system-and-projection-shall-i-use-for-georeferencing-google-map
Here's a polygon representing the 90068 zip code in the Hollywood Hills that works when used in Google Maps:
{ "type": "Feature", "properties": { "kind": "ZIP Code Tabulation Area (2012)", "external_id": "90068", "name": "90068", "slug": "90068-zip-code-tabulation-area-2012", "set": "/1.0/boundary-set/zip-code-tabulation-areas-2012/", "metadata": {"AWATER10": 470986, "CLASSFP10": "B5", "ALAND10": 19730984, "INTPTLAT10": "+34.1297719", "FUNCSTAT10": "S", "ZCTA5CE10": "90068", "MTFCC10": "G6350", "GEOID10": "90068", "INTPTLON10": "-118.3309888"}, "resource_uri": "/1.0/boundary/90068-zip-code-tabulation-area-2012/" }, "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ -118.353618, 34.125452 ], [ -118.359404, 34.125729 ], [ -118.360488, 34.126109 ], [ -118.360677, 34.12635 ], [ -118.360349, 34.127348 ], [ -118.359944, 34.127584 ], [ -118.359668, 34.128176 ], [ -118.359856, 34.12847 ], [ -118.360408, 34.128522 ], [ -118.360602, 34.128725 ], [ -118.362837, 34.129007 ], [ -118.36332, 34.128236 ], [ -118.365299, 34.128872 ], [ -118.366056, 34.128968 ], [ -118.364473, 34.131998 ], [ 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@wavded OK, I think I found what the source ESRI ArcGIS data uses:
Elsewhere in the same XML file:
@wavded I think I got it!!
Source: EPSG: 2229 Target: EPSG: 4326
Seems to work, anyway :)
great! let me know if you have any other issues, closing.
Hello :)
I've downloaded an ESRI ArcGIS shape file from http://cityplanning.lacity.org/, and then I uploaded and converted the zipped file to GeoJSON with your lovely online converter (thanks so much!), but when I try adding the converted GeoJSON data to Google Maps as a data layer at https://developers.google.com/maps/documentation/javascript/examples/layer-data-dragndrop, it doesn't work.
And the Google Maps page works perfectly with native (unconverted) GeoJSON files downloaded from the LA Times' mapping project at http://boundaries.latimes.com/sets/.
Just wondering if I'm doing something wrong or if there's a concept I'm not grasping?
Thanks so much for everything! You rock!
Pardis