<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hello,<div><br><div> I just pushed a sample with Graphhopper routing to Nutiteq 3D SDK AdvancedMap3D samples: <a href="https://github.com/nutiteq/hellomap3d/">https://github.com/nutiteq/hellomap3d/</a>, see GraphhopperRouteActivity.java . Nutiteq SDK is quite similar to Mapsforge, just with 2.5D perspective and rotation capabilities. And with a lot of different data source Layer implementations, from geotiff and shapefiles to mapsforge library.</div><div><br></div><div> Issues with grasshopper:</div><div><br></div><div>1) major problem - all the routes in my area (Estonia) are a bit more than 2x too short. Instead of 100 km I have 45 or so. Could it be that it is so much north and calculations of distances become wrong? If the "meter" is really "mercator meter" then the value could be even right, but calculation of mercator meters to real meters, when the route is from south to north, is not trivial (or not possible at all). I created test dataset for Baltics 3 countries: <a href="https://dl.dropbox.com/u/3573333/baltics.ghz">https://dl.dropbox.com/u/3573333/baltics.ghz</a> , where it is observable. </div><div><br></div><div>2) some minor issues. I did not figure out how to open properly .ghz file with the API. So the sample asks now for .map file inside <map>_gh folder, so the files must be uncompressed in SDCARD. But it would be nicer to enable just to open ghz file, and GH would uncompress it automatically.</div><div><br></div><div>3) start and endpoints are sometimes not optimal, quite far from clicked location, and there seem to be much closer nodes to given points. I added lines from clicked location to first and from last location to make it nicer. Maybe some tolerance in graph generation, or in routing?</div><div><br></div><div><br></div><div>Your pull requests with fixes to the demo app are very welcome, quite possibly I just did something wrong</div><div><br></div><div>Jaak</div><div><a href="http://Nutiteq.com">Nutiteq.com</a></div></div></body></html>