Hi,
I am new to the list and welcome any advice in this area. I want to develop a mapping interface that can plot my own location plus the location of others (where the location of others is transmitted directly between one another, not via a central server). To do this I searched around and came across TangoGPS, I changed the interface a bit and added the new functionality I required (by adapting the "Friends" functionality, cutting out the Curl code and replacing it with some socket code). After doing this, I came across an email thread that lead me to find out about the problems that lead to the creation of FoxtrotGPS. I was looking around because I have hit a stumbling block. Whenever I update the location of a different person it redraws the chosen icon in a new location, but doesn't remove the existing icon from the previous location. The icons representing the previous locations aren't removed unless the map is physically dragged using a left mouse click. I need the new location of a person to be updated and the previous location to be removed immediately as soon as new coordinates are received via the respective socket. Using my limited understanding of GTK+ I have not been able to achieve this after trying for quite some time. So this has lead me to look around, and at the same time I have come across osm-gps-map too, which looks potentially very useful for what I want to do. I dl'd the source, compiled and ran the example... I then tried integrating some of the osm-gps-map functionality into my own application, but ran into problems during compilation. I have however seen some other emails suggesting FoxtrotGPS may already have integrated with osm-gps-map in some way, is that correct? ...So before continuing it seemed like a good time to take stock. For what I want to achieve, I'm trying to determine whether I am best: 1) Sticking with what I have and trying to solve the icon redrawing problem. 2) Trying to invest some more time into integrating osm-gps-map into what I have. 3) Throwing out my interface changes and migrating to FoxtrotGPS (in which case I'd need to learn about how to work with the XML UI). I'd be really grateful if any of you guys could give me your opinion on any of this. Thanks, Ben
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