Off-line GPS data collection

“I would like the ability to collect points, lines, and polygons in the field, offline, with a way to easily download them as shapefiles for use in ArcMap when I return to the office. Will I need to purchase anything else in order to do what I have indicated?”

iCMTGIS II and iGPSGIS II will let you collect points, lines, and polygons in the field, offline, and you can download them as Shapefiles for use in ArcMap when you return to the office.

As far as off-line GPS/GIS data collection and Shapefile import/export goes, iCMTGIS II or iGPSGIS II is all you need.

The questions is whether you need to have a background map displayed as reference while collecting GPS/GIS data.

When you have connection to wi-fi, you can have the standard or satellite Apple Map displayed as background map.

If you have Shapefiles for the region in which you will be collecting data, you can import those into iCMTGIS II or iGPSGIS II as off-line background reference.
If you need to have an off-line geotiff background map displayed during data collection, then you will need to get the PC-GIS 09 mapping software, which will convert geotiff images to the .pim format for use with iCMTGIS II or iGPSGIS II.

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