Take the 2-minute tour ×
Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It's 100% free, no registration required.

How can I show the flow coming from an Origin-Destination matrix as desire lines? I need a result like the one in the picture below.

desire lines

I need to scale them proportionally to its value (coming from a linked MDB) and I like that the lines are a bit curved (but I can use straight lines too).

share|improve this question
    
Have you already created the linework and just need to symbolize the lines, or do you need to create the linework as well? –  RyanDalton Jun 20 '13 at 17:55
2  
Closely related: Curved point-to-point route maps. –  whuber Jun 20 '13 at 18:04
1  
possible duplicate of How can I map a matrix of origins and destinations in QGIS? –  RyanDalton Jun 20 '13 at 18:16
3  
This question is unique and should remain open because the OP is asking how to scale the flow lines proportional to values in addition to inquiring about curved flow lines. –  Aaron Jun 20 '13 at 19:21
1  
@Aaron, thanks for that clarification, I missed it. –  matt wilkie Jun 20 '13 at 23:06
add comment

1 Answer 1

up vote 11 down vote accepted

Try using the QGIS plugin Flowmapper. The attached image is a sample from the plugin documentation.

enter image description here

share|improve this answer
2  
That's a very cool plugin. –  Nick Ochoski Jun 20 '13 at 20:08
    
That's it, thanks –  Ale Oct 4 '13 at 13:24
add comment

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.