On Fri, Aug 27, 2010 at 3:04 PM, Ben Appleton <[email protected]> wrote:
> > > On Fri, Aug 27, 2010 at 2:53 PM, [email protected] < > [email protected]> wrote: > >> On Aug 26, 9:26 pm, Ben Appleton <[email protected]> wrote: >> > On Fri, Aug 27, 2010 at 2:17 PM, [email protected] >> > <[email protected]>wrote: >> > >> > > On Aug 26, 7:49 pm, xf_aicn <[email protected]> wrote: >> > > > Hi all, >> > >> > > > Now i'm doing a project that connect two place with a >> > > > polyline(geodesic is true), and then at the same time, show a marker >> > > > on the middle of the polyline, how can I do this? I can't get the >> > > > coordinate on thepolyline >> > >> > >http://www.geocodezip.com/v3_polyline_example_geodesic.html >> > >> > > Seems to be off the "native" google geodesic polyline. Don't know >> > > why. >> > >> > The geodesic marker looks OK me in Chrome/WinXP. I've attempted to >> attach >> > an image, though I do not know if groups allows attachments. >> > >> > In which browser are you seeing the problem? >> >> IE6 (and Chrome, FF; Opera doesn't seem to want to show the map), but >> click on the marker then "zoom in" to see the difference in the >> polylines (the green polyline is the "native" google maps one, the red >> is the one that was calculated). How are the "native" geodesic >> polylines rendered? >> > > Oh interesting: if the green line is the native geodesic then it appears > slightly off compared to the red line. At least one of them is wrong - I'll > take a look. > Even more interesting: if you zoom in enough so that the 2 lines are distinct, then pan repeatedly (try the home/end/pgup/pgdn keys), the red line seems to wander away from the green line and then wander back again, meeting at regular intervals. So they agree at a set of virtual vertices, and diverge elsewhere. Your function geodesicPolyline() seems to compute 50 intermediate vertices, is that right? > -- Larry >> >> > >> > The center marker on the "normal" polyline seems off as well. >> > >> > >> > >> > For the "normal" polyline did you average in LatLng space or projected >> > coordinates? I couldn't spot it at a glance of your code. >> > >> > > -- Larry >> > >> > > -- >> > > You received this message because you are subscribed to the Google >> Groups >> > > "Google Maps JavaScript API v3" group. >> > > To post to this group, send email to >> > > [email protected]. >> > > To unsubscribe from this group, send email to >> > > [email protected]<google-maps-js-api-v3%[email protected]><google-maps-js-api-v3%2B >> [email protected]> >> > > . >> > > For more options, visit this group at >> > >http://groups.google.com/group/google-maps-js-api-v3?hl=en. >> > >> > geodesic_markers.PNG >> > 116KViewDownload >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Google Maps JavaScript API v3" group. >> To post to this group, send email to >> [email protected]. >> To unsubscribe from this group, send email to >> [email protected]<google-maps-js-api-v3%[email protected]> >> . >> For more options, visit this group at >> http://groups.google.com/group/google-maps-js-api-v3?hl=en. >> >> > -- You received this message because you are subscribed to the Google Groups "Google Maps JavaScript API v3" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-maps-js-api-v3?hl=en.
