Differences between 14.2.1 and 14.2.2 for shapefile export

nickgoodliff

Hi Mike

Had a really strange issue - exporting to shapefile for a fairly large/complex area takes about 8 hours using 14.2.2 64bit dll, but only 2 minutes using 14.2.1 64bit dll. Do you know of any things that might cause this in 14.2.2? Is there any reason that I might need 14.2.2 or can I just use 14.2.1? This is the code (C#):

gMErrorT32_Areas = GlobalMapperDLL.GM_ExportVectorEx(storagePath + "_Areas.shp",
                GlobalMapperDLL.GM_VectorExportFormat_t32.GM_Export_Shapefile,
                IntPtr.Zero,
                ref ExportRect,
                GlobalMapperDLL.GM_VectorExportFlags_t32.GM_VectorExportFlags_ExportAreas | GlobalMapperDLL.GM_VectorExportFlags_t32.GM_VectorExportFlags_ExportAttrs,
                IntPtr.Zero,
                "");

I have used GM_SetExportCropAreas as well to set a shape to crop the output to - could this be the issue/difference in processing time?

Cheers
Nick

global_mapper

Nick,

The cropping could definitely slow things down tremendously, especially if it's a complex area, as cropping to complex areas can be very slow. You can also get the last v14 SDK build from http://www.globalmapper.com/GlobalMapperSDK_v14_latest_beta.zip (should be v14.2.6) or likely your SDK agreement allows you to update to the v15 SDK (Global Mapper SDK). The interface should be the same so it should just be a recompile and updating DLLs with installer.

Thanks,

Mike
Global Mapper Guru
geohelp@bluemarblegeo.com
Blue Marble Geographics for Coordinate Conversion, Image Reprojection and Vector Translation