Hi all, and sorry for cross-posting
(my first contact with the list ;)
I'm interested too in connecting dots, but in a different perspective,
I'd like to connect several centroids (of habitat patches) to draw and
analysize a habitat network (spatial graph) and related connectivity.
Until now I
Hey Giovanni et al.,
Yup, you correctly described the situation, a series of points with
associated times that I want to link in order. Should be pretty
straightforward. The birds I track like to complicate things a bit
by weaving back and forth across 180° but that is a side issue.
An
Hey Richard,
Thanks for the response. Indeed fTools was the first place I looked
as it seemed the type of functionality that might be there. Perhaps
some day, or maybe in the rumored Ecological toolbox?
Seemed like the type of operation that many users might have cause to
use so I was
Hi Declan,
I had the same need some time ago, but than I decided to follow
different ways in my analysis so I didn't went on on with this. You're
talking about migration paths, so I suppose you have temporal
attributes on your points, or some other kind of sequential index that
makes points
As a workaround, and assuming you can make your way around PostGIS, the
following might do what you're looking for:
http://postgis.refractions.net/docs/ST_MakeLine.html
quote:
Examples: Spatial Aggregate version
This example takes a sequence of GPS points and creates one record for each gps
Declan Troy wrote:
Hey Richard,
Thanks for the response. Indeed fTools was the first place I looked as
it seemed the type of functionality that might be there. Perhaps some
day, or maybe in the rumored Ecological toolbox?
Seemed like the type of operation that many users might have cause to
Declan Troy wrote:
Hey Richard,
Thanks for the response. Indeed fTools was the first place I looked as
it seemed the type of functionality that might be there. Perhaps some
day, or maybe in the rumored Ecological toolbox?
Seemed like the type of operation that many users might have cause to
Is there a mean in QGIS to convert a series of points to a polyline?
I would like to create some tracklines from series of telemetry
points to summarize movement/migration paths. I hope I've overlooked
something but the commands I see tend to be dissolution rather than
aggregation of
Hey all,
Is there a mean in QGIS to convert a series of points to a polyline?
I would like to create some tracklines from series of telemetry
points to summarize movement/migration paths. I hope I've overlooked
something but the commands I see tend to be dissolution rather than
