Muni,
PostGIS certainly has LRS capabilities (see
http://postgis.org/documentation/manual-1.3/ch06.html#id2578698).
Whether they meet your needs depends on the structure of your data and
the questions you are asking of it. The use case you provide (given a
line and a query point, read the measure) is supported. I'm sure you
have many others.
P.
On Wed, May 16, 2012 at 10:59 PM, Melpati, Muni
muni.melp...@dot.state.fl.us wrote:
We have various web-based GIS applications that consume the data from
enterprise database (oracle/ArcSDE) . These applications need linear
referencing capabilities of the ArcSDE. We currently do this using java API
provided by ESRI. Some of these web application provide user capabilities to
query distance, in miles, of a road segment give a location on the road. Our
data has linear referencing capabilities and other features such as topology
which are essential to our business needs. I came to know while older
PostGIS doesn’t provide such capabilities. I am wondering if newer versions
offer any similar functionalities. Is it possible to provide similar
capabilities with PostGIS and Postgresql? Thanks in advance.
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