DigiTerra Ltd

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YOU_ARE_HERE : Home Solutions Mobile GIS How does it work?

Field data collection step by step


01 Positioning: GPS area measurement makes use of the geographical positioning technology based on satellites. Today everybody can afford a Windows-based handheld computer with built-in GPS receiver. To select the appropriate GPS receiver you have to pay attention to accuracy and ruggedness. Mainly these two factors influence the price of a device.

02 Data collection and processing: Geographical positions of point, line or polygon type objects - collected with the handheld GPS receiver - will be processed by DigiTerra Explorer. The software stores the result in a vector map layer and the connected descriptive data table.

03 Thematic mapping on the field

Classification in 3 steps:

  • Classify collected data by any parameter and prepare thematic classes (for example different tree species)
  • Select the colour you would like to use for marking the classes (for example: production site of oak will be marked with brown, while pine with green)
  • Prepare your individual coloured thematic map by pressing a single button.
Thematic mapping will be supported by the following functions
  • Built-in and customizable classification methods
  • Colour palette, line types, outline colours, fill colours, patterns
  • Built-in and customizable raster and vector symbols
  • Scale and distance dependent, modifiable labelling
  • Default style and class files
  • Antialiasing and alphablending technology on vector and raster layers
  • Adjustment of transparency of vector layers
  • Adjustment of transparency, brightness and contrast of raster layers for better visibility