HI Vittorio, Great to hear that you are making progress with it, even if you do have lots of challenges still to come !
Michael On 4 November 2011 10:49, Vittorio.IT <[email protected]> wrote: > Hi Michael, > > I have just read, great job! > > I past all the day to test the accuracy with my car, I got the data in > realtime by the gps that I processed with the snaptoline function and I put > the data in overlay to google maps to test the position on the road track. > > (Sorry for my terrible English ;-)) > > My gps raw data was with an error between 4/7 meters, is not bad... after > snapfunction.. the position is always beside the road and not in the center > of the road (How to correct it is the new challenge :-)). > > Actually the sampling frequency of gps data is 500ms.. probably too much > cause when my car was close to some junction or other street the position > jump in wrong street/road. > > I suppose that the problem is one the sampling and second probably that is > really hard to build free navigator compass, without any limit like source > and destination point. > > I'm planning to build an 'idea for predicting next car position to increase > the accuracy knowing speed, space sampling between position... but it could > be usefull only for straight road and not in curving road track... > > I am going to be crazy probably... but i am browsing in the dark...... with > accuracy off course :-) :-) > > Vittorio > > > > > > > -- > View this message in context: > http://osgeo-org.1803224.n2.nabble.com/newbie-Snap-a-Point-to-a-Line-problem-with-openstreetmap-shape-file-tp6951329p6961132.html > Sent from the geotools-gt2-users mailing list archive at Nabble.com. > > ------------------------------------------------------------------------------ > RSA(R) Conference 2012 > Save $700 by Nov 18 > Register now > http://p.sf.net/sfu/rsa-sfdev2dev1 > _______________________________________________ > Geotools-gt2-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users > ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
