AS4QGIS is an algorithm suite consiting of two separate algorithms.

• Synthesis

• Psyche

AS4QGIS Synthesis works on the basis of point data exported as delimited text from a surveying device. 

Synthesis processes 10-character pointID-strings: e. g. '0001A03001'

- feature '1'

- line container / point property 'A'

- shape type '03'

- sequence number '001'

Depending on the entered "shape type", Synthesis generates four output datasets:

- polygons

- polylines

- pointdata

- vertices

shape type spectrum:

feature | '01' - heights, '02' - polyline, '03' - polygon, '33' - closed polyline

sample | '51' - sample point, '52' - sample polyline, '53' - sample polygon

posthole | '06' / '61' - buffered point measurement

finds | '71' - find point, '72' - find polyline, '73' - find polygon

3D markers | '81' - 3D marker point

trench | '91' - fixed point, '92' - trench polyline, '93' trench polygon

section nails | '00' - section nail point

AS4QGIS Psyche complements Synthesis by adding the same attribute structure to existing line or polygon measurements that Synthesis generates from point data. This enables seamless merging of different survey datasets.

AS4QGIS is free to use and fully customizable. The QGIS models are available for download in the '.model3' format here...