Assembling nearby data points into groups
4
votes
0answers
86 views
How to Perform a Grouping Analysis of Points to Divide a Polygon into n Number of Sub-Regions?
I'm attempting to create n sub-regions from a polygon based on a cluster analysis of a bunch of overlapping raster layers (physical layers, eg. depth, currents, waves...). Briefly, I can create a ...
3
votes
0answers
29 views
Clustering driven by an enum/list
Given a set of 2D points ( or vertices if you want ), the values stored for each point are:
coordinate on x
coordinate on y
an enum or a value from a list in general
for the sake of this example ...
2
votes
0answers
49 views
Installing knn on PostgreSQL for windows
I am trying to install the extension KNN for clustering as an extension on my PostgreSQL database.
I have downloaded the file
http://www.pgxn.org/tag/analysis
I found instructions on how to ...
2
votes
0answers
76 views
How to cluster features based on their proximity?
I have around 500 features (Forests) that I want to cluster based on their proximity, and then work with those clusters. I only have the ID, and shape area of those features.
How can I cluster them?
2
votes
0answers
93 views
Geoserver Clustering Problems
I have problems setting up a clustered Geoserver. So far got four instances (version 2.2.4) running on a ubuntu linux box with a shared data directory behind HAProxy.
I use one of the geoservers to ...
2
votes
0answers
208 views
how to show information window for the marker cluster
This is my markercluster code :
i need information window for the markercluster icon as well as marker icon, i have another cluster.js file,
can some one please tell me how can i show the information ...
1
vote
0answers
213 views
Cloudmade Web Maps API Marker Clustering problem
I've just started learning Cloudmade Web Maps API. I'm at marker clustering, and I'm facing a strange problem; whenever I try accessing the page below, content of elements must consist of well-formed ...
1
vote
0answers
124 views
How Do I Capture when the Cluster Rendering is Completed
I have a graphics layer that draws clusters using the sample custom cluster from ESRI. http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#CustomClusterer
We have a Busy Indicator that we ...
0
votes
0answers
58 views
Getting “pointer” cursor at mouseover for rules/symbolizers based clusters in OpenLayers
I successfully used the AnimatedCluster plugin for OpenLayers. My codes uses OpenLayers.Rules and symbolizers. How can I get a "pointer" like mouse cursor when hovering over a cluster of features?
My ...
0
votes
0answers
21 views
openlayers clustering alternative
Is there some alternative to group features in OpenLayers? My goal is to speed-up the process of rendering. Clusters allow to do that a bit faster than rendering just plain features. So, any ...
0
votes
0answers
69 views
How to use symbol center with markercluster?
Am using markercluster.js for showing cluster using img urls for cluster size
that.mcOptions = [{
height: 38,
url: "/images/search/hotels/clusterSmall.png",
...
0
votes
0answers
106 views
Generating vector data (points) for OpenLayers Animated Cluster Strategy
In my web application I am going to use OpenLayers.Strategy.AnimatedCluster strategy due to the fact that I need to visualize a great amount of point features. Here is a very good example of what it ...
0
votes
0answers
105 views
Openlayers cluster strategy: zoom to layer (WFS) extent
For some reason, when I enable the cluster strategy the zoom to layer behavior is zooming to the first cluster in the layers features array, rather than the whole layer data extent.
I tried (with no ...
0
votes
0answers
78 views
QuantumGIS or Matlab package for distribution- or density-based clustering
Does anybody know if there exists any package for either QuantumGIS or Matlab for distribution- or density-based clustering to be used with vector point data?
