Sorry if the question is too broad or not exact, but I'm pretty new in this area and not really sure about the namings and so on.
I have got an MS Access Personal Geo Database which is created either by ArcGIS Desktop or ArcSDE (I'm not sure as there is no clear statement about it on the source). This DB contains a table with a column named shape which is supposed to be Polylines with M value according to the manual. Now I want to convert these polylines to something more usable specially if possible GeoJSON.
Unfortunately I can't decode the binary format in this column, some of them start with these 8 bytes:
17 00 00 00 which is according to this PDF the code for a PolyLineM but some other records (most of them) start with these 8 bytes:
32 00 00 60 which seems to be no valid value for any shape.
Also trying to open the binary data using tools that support ESRI's shapefile format results in errors which I think is obvious because it is not a full shapefile.
Can anybody point me to a Java library or another open source solution that can convert these records at least from command line? or at least tell me what format should I look for if I want to convert these records?