search

nextgis / android_gisapp

:dart: GIS application for Android
http://nextgis.com/nextgis-mobile
GNU General Public License v3.0
134 stars 107 forks source link

Gaps in rendering imported line layer #628

Open praxisnfp opened 6 years ago

praxisnfp commented 6 years ago

I created a drain map from SRTM data. Converted the vector into geojson in QGIS & imported into NextGIS Mobile. But it is not rendering well and gaps are observed as shown in the screenshot attached below. The gaps are not observed in QGIS from where the layer is converted & imported. For polygons, no such things happen. I am using latest version of NextGIS mobile on my ASUS Zenfone 2.(Android 5.0.2).

screenshot_2018-06-07-10-41-30

simgislab commented 6 years ago

please attach a sample

praxisnfp commented 6 years ago

Hello. A screenshot from NextGIS mobile App was attached. PFA it again. I am sorry that I don't have screenshot from QGIS, but the lines are continuous without any breaks/gaps in between, as it is a drain map. Also find attached the a couple of geojson files in line format, which when importing (Open local) are giving trouble.

These files are output from r.watershed GRASS module --> Raster to vector convesrsion --> shape file to geojson conversion.

Thank you a lot.

On Sat 16 Jun, 2018 13:41 Maxim Dubinin, notifications@github.com wrote:

please attach a sample

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/nextgis/android_gisapp/issues/628#issuecomment-397796217, or mute the thread https://github.com/notifications/unsubscribe-auth/AMm4V_Rib2GSbM4FmKz26Q-EE_B9HG9Bks5t9L23gaJpZM4UqZin .

praxisnfp commented 6 years ago

It seems that geojson files are not attached. PFA the zip'ed files. Geojson_Drains.zip

praxisnfp commented 6 years ago

Hello!

Meanwhile I observed as,

It needs to zoom to very high level, then only missing parts appear as thin lines.

I dissolved the layer. It losts the attribute data for all the segments (not so important in my case, only needs visualization). Then the missing parts are visible now, still a couple of small segments connecting 2 different streams are not seen.

Any final solution?? Regards.