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GPXMM: Import and export between GPX and MiraMon format
Direct access to online help: GPXMM
Access the application from the menu:
"File | Import | Vectors and/or databases | GPX (GPS eXchange Format) -> MMM (PNT, ARC/NOD)..."
"File | Export | PNT, ARC/NOD -> GPX (GPS eXchange Format)..."
"Tools | GPS | Import from GPX (GPS eXchange Format) to MiraMon"
Presentation and options
This application is used to convert a GPX format file (GPS eXchange Format) into MiraMon structured vector format (PNT, ARC/NOD) and viceversa.
Import:
Conversion of a GPX (GPS eXchange Format) file to MiraMon structured vector format (PNT, ARC/NOD).
Export from PNT and/or ARC format to GPX format:
Export from PNT and/or ARC format to GPX format.
A GPX file is a format based on an XML scheme that is intended for data sharing from GNSS receivers (popularly known as GPS) between different applications. This file may contain several points of interest of interest (waypoints), tracks or routes. More detailed information about the structure of a GPX file can be consulted in this webpage.
In a GPX file importing, the output files will detach from the type of existing data in the input file. If it contains tracks, an arc structured vector file (.arc) will be created. If the GPX file contains points, a point structured vector file (.pnt) will be created. If the GPX file contains tracks (sets of points that define a route to be followed), a structured vector file of points will be created for the points of interest and also another structured vector file of arcs that joins them forming a possible trace between them. In any case, a MiraMon Map (MMM) file will also be created where all the imported data can be seen. In relation with alphanumeric data, all the attributes defined for the points of interest are saved (consult attributes) and for routes (check attributes) that the GPX file contains. Moreover, in the case of tracks, the initial and final time of the track (timestamp) will be also saved in Universal Time Coordinated (UTC) and the minimum and maximum ellipsoidal altitude.
The application structures topologically the imported layer.
In exporting from PNT and/or ARC/NOD format file to a GPX file, and due to the limitations of the GPX format, the program allows to save the attributes of a single field of the table associated with the PNT and/or ARC/NOD file; this attribute will be the <name> of the points of interest and/or tracks of the destination file. In case of not assigning any field, the field will be filled, by default, with the name of the file followed by the graphical identifier of the corresponding point or arc.
According to the specification of GPX format, file data coordinates are relative to WGS84 datum and the measurement unit is meter. However, this application allows the reprojection from the GPX file data to another reference system during the import process. For more information about reference system, ythe file MiraMon horizontal reference systems. Geodesic tables and files can be consulted for further information.

Dialog box of the application

Syntax
Syntax:
- GPXMM 1 FitxerGPX FitxerMMM [/SIST_DEST] [/ELLIP]
- GPXMM 2 FitxerPNToARC FitxerGPX [/DESC_PNT] [/DESC_ARC] [/NAME_PNT] [/NAME_ARC] [/ELLIP]
- GPXMM 2 FitxerPNT FitxerARC FitxerGPX [/DESC_PNT] [/DESC_ARC] [/NAME_PNT] [/NAME_ARC] [/ELLIP]
Options:
- 1:
Import from GPX format to MMM format.
- 2:
Export from PNT and/or ARC format to GPX format.
Parameters:
- FitxerGPX
(GPX file -
Input parameter): This is the GPX file to import or export.
- FitxerMMM
(MMM file -
Output parameter): Output file in MMM format
- FitxerPNToARC
(PNT file or ARC file -
Input parameter): Is it the PNT file or the ARC file to export to GPX
- FitxerPNT
(PNT file -
Input parameter): This is the PNT file to export to GPX
- FitxerARC
(ARC file -
Input parameter): This is the ARC file to export to GPX
Modifiers:
/SIST_DEST=
(Destination reference system.)
Identifier of the projection system of the destination file in the event that reprojection is chosen. If not indicated, the reference system indicated in the GPXMM will be maintained. (Input parameter) /DESC_PNT= (PNT field name for Desc label) Indicates the name of the PNT field that will act as the Desc label (if the file to be exported is a PNT). (Input parameter) /DESC_ARC= (ARC field name for Desc label) Indicates the name of the ARC field that will act as the Desc label (if the file to be exported is an ARC). (Input parameter) /NAME_PNT= (PNT field name for Name tag) Indicates the name of the PNT field that will act as the Name label (if the file to be exported is a PNT). (Input parameter) /NAME_ARC= (Name ARC field for Name tag) Indicates the name of the ARC field that will act as the Name label (if the file to be exported is an ARC). (Input parameter) /ELLIP (Incorporate GPX elevations) Assign the altitude ( in GPX format) as the Z coordinate. Note that this altitude is usually referenced to the WGS84 ellipsoid in most GPX files and, therefore, if you require orthometric altitude (the type typically used in topographic maps), it will be necessary to apply an altitude transformation. (Input parameter)
