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Calling GIS Professionals

Simon's picture

By Simon - Posted on 25 March 2017

NB: Originally posted elsewhere on the Global Riders Network and appears via syndication.

Trail advocacy help! Calling GIS professionals

Hey all, at TrailCare we are looking to build a detailed map of trails in Northern Sydney.

Hoping to find someone who can help:
-with raster to vector conversion of tile images to CAD lines. We can provide a converter.
-scaling and coordinate conversion of vectors into GDA/MGA zone 56
-assembling the tiles in ArcView GIS or similar to output to standard files such as *.shp.
-export of GIS layer to Google Earth

Thank you to Dave, Tristan and Sam for bouncing ideas with me so far.


paul.thompson773's picture


(I work for

You could try out
It is a web app with a 3d globe with features for uploading your own data, viewing, sharing.

You could, for example, upload your images onto the app, then zoom into trails mark out points, lines and polygons of trails to create collections of trail maps based on looking at aerial map images.

There are features for collaboration and sharing, so perhaps you could get volunteers/members/workers to do the vectorisation/inspection work on 4dmapper and then also provide for public viewing access.

We would be interested to hear from you and what you're aiming to do.

We're looking to improve our product usability and add features, so having a novel type of usage would be great.

You can reach me on

Paul Thompson.

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