If you want to make a model deeper in extent and you want to preserve existing 2D sections and their associated contact and orientation data.


  1. Close the project
  2. Open the .xml project file in a text editor (see below for details)
  3. Update the minimum depth (Zmin).
  4. Save the .xml file
  5.  Reopen in GeoModeller
  6. Reset the view if needed
  7. Recompute the model
  8. Save the project in GeoModeller

Example .xml file starting at

    <geo:Project3DEdit xmlns:geo="http://www.geomodeller.com/geo"    xmlns:gml="http://www.opengis.net/gml" author="rod paterson"    CoordSystem="GDA94 / MGA zone 54" date="23/ 6/2018 19:15:59"    deflection2d="0.001" deflection3d="1.0E-4" description=""    discretisation="1000000.0" precision="1.0"    projectName="NewCentury_Local_GM" unit="M" version="2.0">
            <geo:ExtentXY Xmax="265000.0" Xmin="235000.0"    Ymax="7941000.0" Ymin="7910000.0"/>
            <geo:ExtentZ Zmax="350.0"        Zmin="-2650.0"/>

 Note that this will NOT change the depth extent of the vertical sections and they will remain as they were previously with all of the relevant contact and orientation data. The data for vertical sections is stored in UV coords referenced to the section extents and the vertical section geometry is contained in a separate .sec file. It is highly recommended not to edit these files.