Tagged Questions
1
vote
1answer
38 views
openlayers point intersection
For example, I have 2 points and I want to know if they intersect. If yes, I need to delete first points. Should I use OpenLayers .intersects method? Because it greatly depends on zoom level.
Or ...
2
votes
1answer
151 views
Intersection of drawn polygon with WMS layer features. Better of two methods?
Scenario:
Several WMS layers with polygon features.
Objective:
Draw a polygon with OpenLayers and allow it only if doesn't not cut any features in WMS layer. It can contain the features as a whole ...
4
votes
2answers
399 views
OpenLayers - Get features inside a polygon
In my OpenLayers map I allow users to draw an ad-hoc polygon vector. Then I need to get all the features from a WFS vector layer that fall within the ad-hoc polygon.
Here is the code I have that ...
0
votes
3answers
312 views
Trying to fetch feature data by intersecting Vector Polygon and WMS feature layer
I am trying to intersect a user defined polygon with a Point WMS Feature Layer. I am using the following code
action = new GeoExt.Action({
text: "draw poly",
control: new ...
1
vote
1answer
356 views
GetFeature Request with Polygon Intersecting Polygons
My task is very straightforward: a user draws a polygon and query all parcel polygons. The query string extends the URL limit. So I am posting XML to WFS. However, GeoServer always returned 0 feature, ...
2
votes
2answers
973 views
How to query which features of all vector layers intersect with a given bounds?
I am writing a Openlayers map app, and wondering whether there's a better practice to query which features of which vector layers intersect with a given bounds..
It's certainly not a good idea to ...
11
votes
5answers
4k views
How to use ST_Intersection?
Here's a quick summary about what I'm trying to do: I have 3 tables in Postgres, 'a' and 'b', each have a Polygon column, and 'c' has a Point column. What I'm trying to do here is to get the ...
4
votes
1answer
1k views
How to get the intersecting polygon of two polygons? (using JSTS intersection)
I want to intersect two polygons within an OpenLayers layer. I found the JSTS library, which should be able to intersect two polygons, and return the new created polygon of the intersection.
The ...
