New GDAL/OGR for NextGIS Web

Geographic data abstraction library GDAL/OGR has got a new very important driver – NextGIS Web. The new driver is available starting GDAL 2.4. NextGIS Web (NGW) – is a server GIS, our main product that allows to organize storage, visualization and management of your team’s geodata. NGW is used by thousands of users around the world in our nextgis.com cloud and lots of different organizations on their premises.

GDAL/OGR is a de-facto standard in GIS field and NGW support opens broad avenues for bringing its support to many products using GDAL. At the same time we’re going to update our own products to use this driver instead of custom implementations. The products to be updated are:

New GDAl is already used in NextGIS QGIS available for Mac OS, Ubuntu and Windows.

Main driver features:

  • Get information about NGW resources: vector, raster layers, styles, services.
  • Obtain (download) data itself (both raster and vector)
  • Update (edit) data (vector and raster starting GDAL 2.4.1)

More of NGW support on GDAL website.

More of NGW raster support on GDAL website.

See examples of new functionality in action below:

5 Responses to New GDAL/OGR for NextGIS Web

  1. Odes says:

    There is a LNK2019 error when compiled with GDAL/OGR library.
    ogrsf_frmts.lib(ogrregisteral.obj), RegisterOGRNGW, OGRRegisterAllInternal

    • Hi, where did you get sources? All builds and unit tests passed fine:
      * https://github.com/OSGeo/gdal/runs/44631293
      * https://ci.appveyor.com/project/OSGeo/gdal/builds/21252505
      * https://travis-ci.org/OSGeo/gdal/builds/472672599?utm_source=github_status&utm_medium=notification
      If you have specific OS or compiler, please report you issue to GDAL official repository (https://github.com/OSGeo/gdal/issues) or gdal-dev mailing list

      • Carlos Luna says:

        Hi.
        Building GDAL-2.4.0 on Windows10 platform using nmake generates the same LNK2019 error. I am using the Visual Studio 2017 Developer Command Prompt.
        nmake logs:
        link /nologo /dll /INCLUDE:_OSRValidate /INCLUDE:_OPTGetProjectionMethods /INCLUDE:_OGR_G_GetPointCount /INCLUDE:_OGRRegisterAll /INCLUDE:_GDALSimpleImageWarp@36 /INCLUDE:_GDALReprojectImage@48 /INCLUDE:_GDALComputeMedianCutPCT@32 /INCLUDE:_GDALDitherRGB2PCT@28 /INCLUDE:_OCTNewCoordinateTransformation@8 port\*.obj gcore\*.obj alg\*.obj frmts\o\*.obj ogr\ogrsf_frmts\ogrsf_frmts.lib ogr\ogr.lib gnm\*.obj gnm\gnm_frmts\o\*.obj third_party\o\*.obj apps\commonutils.obj apps\gdalinfo_lib.obj apps\gdal_translate_lib.obj apps\gdalwarp_lib.obj apps\ogr2ogr_lib.obj apps\gdaldem_lib.obj apps\nearblack_lib.obj apps\gdal_grid_lib.obj apps\gdal_rasterize_lib.obj apps\gdalbuildvrt_lib.obj legacy_stdio_definitions.lib odbc32.lib odbccp32.lib user32.lib ws2_32.lib kernel32.lib psapi.lib gcore\Version.res /out:gdal204.dll /implib:gdal_i.lib
        Creating library gdal_i.lib and object gdal_i.exp
        ogrsf_frmts.lib(ogrregisterall.obj) : error LNK2019: unresolved external symbol _RegisterOGRNGW referenced in function _OGRRegisterAllInternal
        gdal204.dll : fatal error LNK1120: 1 unresolved externals
        NMAKE : fatal error U1077: ‘”C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\VC\Tools\MSVC\14.16.27023\bin\HostX86\x86\link.EXE”‘ : return code ‘0x460’
        Stop.

        Any ideas as to what has gone wrong? Nothing was modified.

        Regars,
        Carlos

      • Carlos Luna says:

        Hi Dmitry.
        I’ve done a bit more digging and it seems that ogr/ogrsf_frmts/ngw is not being built and ogrngwdriver.cpp holds the RegisterOGRNGW() function.
        This could just be a makefile issue but I’m not sure how to fix it. Could you let me know how to best fix this issue?
        Thanks again.
        Carlos

Leave a Reply

Your email address will not be published. Required fields are marked *