http://www.openheatmap.com/
I have about 20 million points and I would like to show where the hotspots are.
Question
Can FME be used to produce heat maps?
Can FME be used to produce heat maps? Kind of like this:
This post is closed to further activity.
It may be an old question, an answered question, an implemented idea, or a notification-only post.
Please check post dates before relying on any information in a question or answer.
For follow-up or related questions, please post a new question or idea.
If there is a genuine update to be made, please contact us and request that the post is reopened.
It may be an old question, an answered question, an implemented idea, or a notification-only post.
Please check post dates before relying on any information in a question or answer.
For follow-up or related questions, please post a new question or idea.
If there is a genuine update to be made, please contact us and request that the post is reopened.
+9- Participant
I'd say so.
One way it could potentially be done is to:
- Use the HullAccumulator to create rubber bands around clusters of points.
- Perhaps the Generaliser to smoothen out the clusters
- Colour code the clusters.
- Use the HullAccumulator to create larger clusters by using a larger tolerance
- Repeat the smoothing and colouring
- Rasterise the resultant coloured clusters.
Or of course, you could try to create a DEM via the DEMGenerator. If you set it up right, I'm sure it would look spectacular!
+25- Supporter
Yes,
Several posts and workspaces related to this online. And it can be done quite generic!:
http://fmepedia.safe.com/articles/Samples_and_Demos/Calculate-Density-or-Cluster-Analysis-Modeling
and
https://groups.google.com/forum/?fromgroups#!topic/fmetalk/aNORbVpiRgI
+15- Contributor
On the relevant forum (R) there are multiple examples to clustering techniques and heat map generation.
I idd adapted the surface builder method and use standard Gaussian calculation for hotspot generation. Picture shows surface building, generalizer and then rebuilding surface (to make it look nice)
Gradient building and gradient bar use same calculations, just different transformers.
Table created with same values etc. (table unreadable in pic ass actual map is large 300dpi A0)
Map was created using Mapnick Rasterizer (With a lot of sweat !) 26min runtime.
Trying the R caller recently to see how it fairs.
- Participant
This thread is a decade old but hopefully someone will see this - is it possible to use FME to create a HeatMap for KML (Google Earth)?
Login to the community
No account yet? Create an account
An FME Account is required to contribute
LoginEnter your E-mail address. We'll send you an e-mail with instructions to reset your password.