Survey Data Reduction

• Raw data from the instrument is downloaded by 12d Model or read from a PC Card and converted to 12d Model’ s ‘Field File’ , ready for reduction.
• During reduction, a mapping file is used to apply linestyles and symbols, colours and line weights, and to separate the data into models (layers), all based on your field coding.
• Field data is automatically ‘strung’ based on field codes.
• Coding by Field Templates is available, allowing dramatic increases in field productivity for string based surveys.
• Corrections to field data (typically mis-coding or mis-numbering of strings) are done on screen, and the corrections written back to the Field File. This provides an audit trail of the office work, and allows an UNDO facility to be provided.

Survey Adjustment

• Traverse adjustment by Transit, Bowditch, Crandall, Compass or Least Squares.
• Zone to Zone and general conversions between Lat/Long and Universal Transverse Mercator projections.
• Conversions between AGD datum and the GDA datum using parameters or the NTv2 Grid.

DTM Formation

• Data with valid heights is triangulated to form a DTM or ‘TIN’ . All data can be viewed in plan, section or perspective views.
• Long sections, cross sections and contours can be created from the DTM.

Design and COGO

• Alignment strings and templates are used to create platforms and road designs. Detailed design option available.
• A full suite of COGO functions is included.

Earthworks

• Analyse volumes between surfaces (‘tins’) or between a surface and a height.
• Determine cut/fill lines and isopachs.
• Colour a surface based on height, depth of cut/fill, slope or aspect.

Plotting

• Plot drawings directly to the plotter including title blocks, hatching, linestyles, symbols.

Data Exchange

• Read and write AutoCAD ‘dwg’ and ‘dxf’ files. Write CivilCAD ‘.as5’ format retaining layers, colours, codes and contourability in the CivilCAD file. Write Geocomp ‘Points’ and ‘Strings’ files. Write MX’ s GENIO format.
• Note that the ‘12d Survey 5K’ package includes the dwg/dxf interface, and ONE of CivilCAD, Geocomp or GENIO outputs.

Setout and Data Upload