Documentation for the Anaximandre plugin

Introduction

The Anaximandre plugin enables the creation of 3D polygon, line and point geopackage files (.gpkg) from a points layer in csv format. The points must include, in addition to their coordinates, descriptive values which allow them to be grouped, and a code value which defines the geometry to be generated. The codes are:

  • For a polygon : ‘p’
  • For a line : ‘l’
  • For a point : ‘pt’
  • For linked reference points : ‘pt cpe’
  • For an isolated artefact : ‘iso’
  • For a DEM point : ‘pt mnt’
  • For a circle : ‘c’, followed by its diameter in meters
  • For a circle from two points: ‘c2pt’

The order of the points in the file must follow a few rules:

  • The points must follow the outline of the intended line or polygon
  • For circles, the center of the circle will be used
  • For DEMs, there is no particular order

The result will be a group of layers containing 3D entities as well as the following attributes:

  • First description (e.g. context number)
  • Second description (e.g. type)
  • Average Z

The dialog box

The plugin requires two initial parameters:

  • a csv file: CSV File
  • The location for the output files: Output
_images/Dialogue.png

When a csv file is selected, the data in the first line of the file are shown in order to verify their conformity

_images/Dialogue2.png

The OK button launches the program and loads the layers onto the map

Codification booklet

Example of the svg codification booklet, in A6 page format

_images/LivretCodif_EN.svg

Source

The source code can be found at the following address:

https://github.com/FFouriauxEveha/Anaximandre/tree/Anaximandre_Qgs3

About

Design & Developpement: F. Fouriaux -- Translation : R. Lacey