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GDAL driver based on EFAL SDK available for download

  • 1.  GDAL driver based on EFAL SDK available for download

    Posted 07-10-2020 21:34

    • EFAL is a Software Developer Kit that provides file format support for MapInfo TAB and MapInfo Enhanced TAB file formats. It supports opening, querying, editing and creation of new files. Querying of data is specified using the MapInfo SQL query language.

    • The SDK is available in 64-bit for Microsoft Windows, Ubuntu, CentOS, Oracle Linux, and Amazon Linux distributions. The SDK also provides several C++ sample applications to demonstrate the API usage. EFAL is C++ based and includes JNI and .NET wrapper layers as well as Java and .NET sample applications.
    • If you are interested in using EFAL through GDAL, you can download separately GDAL driver below. This Driver plugin is built for GDAL version 3.0.X and supports the MapInfo Native and NativeX formats using the EFAL library from Precisely The driver supports reading, writing, and creating data in these formats. Open Source MITAB library does not support the newer MapInfo Extended (NativeX) format which allows for larger file sizes, unicode character encodings, and other internal enhancements. Instructions on how to use this driver with GDAL are included in this download.
    You can download EFAL SDK and GDAL driver from here: https://www.pbinsight.com/support/product-downloads/item/mapinfo-efal-sdk-download

    ------------------------------
    Andrei Veselov
    Pitney Bowes Software Inc.
    Troy NY
    ------------------------------


  • 2.  RE: GDAL driver based on EFAL SDK available for download

    Posted 10-06-2020 20:17
    Hi Andrei,

    The link above links to a generic Precisely page rather than the EFAL page. Have Precisely removed access to the driver and SDK? Will Precisely be providing access in the future?

    ------------------------------
    Lee Crosby
    Campaspe Shire Council
    Echuca VIC
    ------------------------------

    Original Message


  • 3.  RE: GDAL driver based on EFAL SDK available for download

    Posted 10-06-2020 20:28
    Edited by Andrei Veselov 10-06-2020 20:28
    Hi Lee,

    Yes, we are in the process of moving all of our web pages from Pitney Bowes to Precisely. Pbinsight pages are not available starting today. New Precisely web site with MapInfo related product downloads is still under development.

    As a temporary solution, we will be posting direct download links to the Community within next day or two.

    You download EFAL SDK from here:
    http://du8h850wz9371.cloudfront.net/product-downloads/mapinfo-pro/sdks/EFAL_19.0.zip

    EFAL driver for GDAL is available here:
    http://du8h850wz9371.cloudfront.net/product-downloads/mapinfo-pro/sdks/gdal3_efal_drv.zip

    Regards,
    Andrei

    ------------------------------
    Andrei Veselov
    Pitney Bowes Software Inc.
    Troy NY
    ------------------------------

    Original Message


  • 4.  RE: GDAL driver based on EFAL SDK available for download

    Posted 10-16-2020 06:35
    Will there be an option to set the blocksize, when creating a TAB file? We can do it in MapInfo itself, but it seems to be missing from the SDK.

    ------------------------------
    Uffe Kousgaard
    ROUTEWARE
    Roskilde
    ------------------------------

    Original Message


  • 5.  RE: GDAL driver based on EFAL SDK available for download

    Employee
    Posted 10-16-2020 15:17
    Hi Uffe,

    Blocksize can be set via the table metadata
    EFALFUNCTION EFALHANDLE CreateTable(EFALHANDLE hSession, EFALHANDLE hTableMetadata);

    -Bob

    ------------------------------
    Bob Fortin
    Software Architect and Distinguished Engineer
    MapInfo Pro Development Team
    ------------------------------

    Original Message


  • 6.  RE: GDAL driver based on EFAL SDK available for download

    Posted 10-17-2020 03:46
    Sorry, but I can't see how to do it.

    Roughly speaking a table is created this way, but where do the blocksize go?

    TableMetadata = CreateNativeTableMetadata(aSession,'table1',aPath,aCharset)
    AddColumn(aSession,TableMetadata,'Obj',OT_OBJECT,false,0,0,aCoordSys)
    AddColumn(aSession,TableMetadata,'column1',OT_INTEGER,false,0,0,'')
    Table = CreateTable(aSession,TableMetadata)

    ------------------------------
    Uffe Kousgaard
    ROUTEWARE
    Roskilde
    ------------------------------

    Original Message


  • 7.  RE: GDAL driver based on EFAL SDK available for download

    Posted 10-17-2020 13:29

    Hi Uffe,

     

    Looking at the docs, EFAL seems to have a set metadata function:

    EFALFUNCTION void SetMetadata(EFALHANDLE hSession, EFALHANDLE hTable, const wchar_t * key, const wchar_t * value);

     

    ... which you could call after the initial create and having a valid session and table handle. The documentation doesn't, however, seem to list all the possible key values, which I presume includes blocksize. It might be as simple as "blocksize", or perhaps you can extract a list of possible keys from somewhere, or even write a small program to extract the data values from an existing table and see what secrets that reveals!

     

    Regards,

    Warren Vick

     




    Original Message


  • 8.  RE: GDAL driver based on EFAL SDK available for download

    Employee
    Posted 10-17-2020 15:02
    Sorry it looks like I rushed the answer. It seems we have not exposed a method in EFAL to set a generic key/value metadata tag, so although the underlying code would use it if it was there, there is currently no way to set it.

    ------------------------------
    Bob Fortin
    Software Architect and Distinguished Engineer
    MapInfo Pro Development Team
    ------------------------------

    Original Message


  • 9.  RE: GDAL driver based on EFAL SDK available for download

    Employee
    Posted 12-02-2020 09:45
    Edited by Bob Fortin 12-02-2020 10:06
    Warren is correct.

    It turns out there is a way to set the block size:

    if (bCreateNativeX)
    {
    hMetadata = CreateNativeXTableMetadata(hSession, tableName, tablePath, charset);
    }
    else
    {
    hMetadata = CreateNativeTableMetadata(hSession, tableName, tablePath, charset);
    }

    wchar_t szBlockSize[32];
    swprintf(szBlockSize, sizeof(szBlockSize) / sizeof(wchar_t), L"%d", nBlockSize);
    SetMetadata(hSession, hMetadata, L"\\blockSizeMapFile", szBlockSize);

    We do need to document what metadata values can be set this way.

    -Bob

    ------------------------------
    Bob Fortin
    Software Architect and Distinguished Engineer
    MapInfo Pro Development Team
    ------------------------------

    Original Message


  • 10.  RE: GDAL driver based on EFAL SDK available for download

    Posted 12-03-2020 05:23
    I tried this and all I am getting is an additional line in the TAB file:

    begin_metadata
    "\blockSizeMapFile" = "512"
    "\MapInfo" = ""
    "\MapInfo\TableID" = "1dcc620b-d64a-4d23-a5db-758058338867"
    end_metadata



    ------------------------------
    Uffe Kousgaard
    ROUTEWARE
    Roskilde
    ------------------------------

    Original Message


  • 11.  RE: GDAL driver based on EFAL SDK available for download

    Employee
    Posted 12-08-2020 10:02
    Hi Uffe,

    If you open the table in Pro and use TableInfo(table, TAB_INFO_MAP_BLOCKSIZE) does it show 512?
    The blocksize is used when creating the  map file. The tab file metadata should not matter.

    -Bob

    ------------------------------
    Bob Fortin
    Software Architect and Distinguished Engineer
    MapInfo Pro Development Team
    ------------------------------

    Original Message


  • 12.  RE: GDAL driver based on EFAL SDK available for download

    Posted 12-08-2020 16:36
    Hi Bob,

    It keeps reporting 16384 for a variety of strings I have tested with - upper case, lower case, mixed etc.


    ------------------------------
    Uffe Kousgaard
    ROUTEWARE
    Roskilde
    ------------------------------

    Original Message


  • 13.  RE: GDAL driver based on EFAL SDK available for download

    Employee
    Posted 12-10-2020 07:55
    Hi Uffe,

    What version of EFAL are you using?

    -Bob

    ------------------------------
    Bob Fortin
    Software Architect and Distinguished Engineer
    MapInfo Pro Development Team
    ------------------------------

    Original Message


  • 14.  RE: GDAL driver based on EFAL SDK available for download

    Posted 12-13-2020 07:48
    The one in the link above. 19.0.6.0

    ------------------------------
    Uffe Kousgaard
    ROUTEWARE
    Roskilde
    ------------------------------

    Original Message


  • 15.  RE: GDAL driver based on EFAL SDK available for download

    Posted 12-18-2020 15:00

    Hi all,

    Updated version of EFAL version 19.0.10.0 posted here:  https://support.precisely.com/product-downloads/item/mapinfo-efal-sdk-download/

     @Uffe Kousgaard, you can try it out.

    Regards,

    Andrei



    ------------------------------
    Andrei Veselov
    Pitney Bowes Software Inc.
    Troy NY
    ------------------------------

    Original Message


  • 16.  RE: GDAL driver based on EFAL SDK available for download

    Posted 12-18-2020 17:13

    Bingo, it works now :-)



    ------------------------------
    Uffe Kousgaard
    ROUTEWARE
    Roskilde
    ------------------------------

    Original Message


  • 17.  RE: GDAL driver based on EFAL SDK available for download

    Employee
    Posted 12-18-2020 17:18

    Sorry for the delay, some things are taking a bit longer this year :-)



    ------------------------------
    Bob Fortin
    Software Architect and Distinguished Engineer
    MapInfo Pro Development Team
    ------------------------------

    Original Message