geojson

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OpenLayers, and GeoJSON, not multiply marker on same coordinates

My code is showing markers from GeoJSON, when I\'m haved zoomed into zoom-level 10,it load the GeoJSON-file, but how do I avoid to reput out the same markers?[详细]

2023-04-12 07:40 分类：问答
OpenLayers => feature is null

This is my GeoJSON result. PasteBin But when I load it, the result I get infirebug is feature is null. Why\'s that, are there any errors in my result? The coords in the JSON is written in projection W[详细]

2023-04-12 06:11 分类：问答
Accessing Coordinates in a nested geojson file to draw polygons with Google Maps API v3

I am having a real pain of trying to draw multiple polygons from a geojson file. Below I have pasted a sample of the geojson file and the javascript used to access it. It seems the main problem I am r[详细]

2023-04-04 12:39 分类：问答
making a vector layer with geoJson in openlayer

I used to mak开发者_C百科e GML vector like this: layer = new OpenLayers.Layer.GML(\"based\", \"./parser2.php\",[详细]

2023-04-01 16:08 分类：问答
OpenLayers Select Feature with control points

I have a OpenLayers.Layer.GML layer build with GeoJSON data given by MapFish. When I select his features control points are displayed and they let me edit the shape of the features. Well I don\'t want[详细]

2023-03-25 02:00 分类：问答
SimpleGeo Polymaps total noob LineString displaying as polygons question?

So I\'m trying out polymaps as a beginner, adapting the midnight commander example: var po = org.polymaps;[详细]

2023-03-24 06:55 分类：问答
make my Json string parsed openlayers.format.geojson

i need to change a Json stringinto Geojson format. right now i am using Json_encode() function to convert sql query result into json string (as given in this link JSON encode MySQL results).[详细]

2023-03-17 19:21 分类：问答
Reformat SQLGeography polygons to JSON

I am building a web service that serves geographic boundary data in JSON format. The geographic data is stored in an SQL Server 2008 R2 database using the geography type in a table. I use [ColumnName[详细]

2023-03-16 09:00 分类：问答
Convert lat long into geojson object

开发者_C百科How can i convert my lat and long value into geojson object. I work on php platform.If I understand well, you want to build a string like this:[详细]

2023-02-23 23:07 分类：问答
Saving and restoring geometries in OpenLayers

Context: I\'m a just-hours-old newbie at OpenLayers, please be gentle. Fundamentally, I have a map with some drawn objects on it.If I understand things correctly, I have a number of OpenLayer.Feature[详细]

2023-02-14 14:14 分类：问答