Until now, PDF files and JPEG images could be uploaded onto OTISS to create site plans. But these file formats do not contain any geo-reference/GPS/location information, therefore they could not be used with GPS nor could the site’s trees/furniture be used with the ‘real’ world maps such as Ordnance Survey, Google, OpenStreetMap, aerial maps, etc.

However, if the image contains clearly marked points with known geographic coordinates (e.g. Ordnance Survey grid reference points), then you can overcome these drawbacks by ‘geo-referencing’ the image.

Get the best out of your GPS and the OTISS survey apps.