1
vote
2answers
122 views

Decrease resolution of vector shapes (polygon) i.e. reduce size and number of points in outer ring

I'm trying to get a kmz export down to less than 3 megabytes and am wanting to do so by reducing the number of points in my polygons' outer rings. I've seen this concept in action when it comes to ...
1
vote
4answers
2k views

Displaying a KML File on a Vector Layer in OpenLayers

This should be straight-forward, but I am beating my head over it. KML will not display. I have tried from same server and remote server to ensure it is not a cross-domain issue. The KML file loads ...
1
vote
3answers
308 views

Export Shapefile To KML - Google Maps Layers/Tiles

I need to convert a shapefile (either polygon shp with millions of polygons or polyline shapefile derived from the polygons) into a format to use online in Google Maps. I currently use GDAL codes ...
0
votes
1answer
122 views

render kml 10mb KML file cordinates data on OSM map throws stop running script error in OpenLayer.js file

I am trying to render the kml file having 18000 line string data on OSM map using openlayer HTTP strategy. To render OSM map i am using GeoExt.MapPanel and ExtJS 3.4 viewport. The problem is I am ...
5
votes
0answers
51 views

How are the edges of a polygon defined? [duplicate]

Possible Duplicate: Are long lines in shapefiles to be considered geodesics or straight lines in the 2D latlong space? In various representations, such as shapefiles and kml, polygons are ...
1
vote
1answer
465 views

Steps to polygonize raster KML image

I suspect I'm trying to do the same thing as in Convert image in KMZ to polygon. Given a kml displaying an image within a given lat/long boundary, what are the steps I follow to use Quantum GIS to ...
4
votes
1answer
671 views

How to prepare SVG images for presentation in OpenLayers?

I have a collection of SVG vector images I need to display on a map, probably using OpenLayers/KML. Is there any way to convert a vector image from SVG to KML? Or would it make more sense just to use ...
0
votes
1answer
679 views

How to highlight track in KML on hover with OpenLayers

I have KML layer with multiple tracks and I would like to highlight them individually on mouse hover. I tried to implement this like in the example found in OpenLayers examples, but couldn't get it ...
3
votes
1answer
774 views

Why is Openlayers KML-layer undefined when using permalink

I am working on Openlayers to dynamically load KML tracks on map. I want it to load filtered KML everytime map is moved or zoomed based on viewport and zoom level. I got it working with code below, ...
7
votes
3answers
7k views

converting kml into a vector graphic… and back

Is there a simple means to convert, say, an svg or other vector image format file to KML and vise versa? There are incredibly powerful vector editing tools which attempt to replicate the way reality ...