Export Manual

Gemini Terreng: IFC

  1. In Gemini terrain, select the files you want to export to IFC.
  2. Everything that is selected will be included in the export to IFC. File → Export → IFC.
  3. Select location → export.

Gemini Terreng: DWG

  1. In Gemini terrain, select the files you want to export to dwg.
  2. Everything that is selected will be included in the export to dwg. File → Export → dwg.

Gemini Terreng: landXML Centre Line

  1. In Gemini Terrain, find the SFI model (road model) you want to get the centre line from.
  2. Double-click on the file name to bring up the SFI properties.
  3. In the SFI properties, go to the tab «import / export» → «Export to field».
  4. Select the format «VisualMachine LandXML 3D lines».

Orthophoto: Drone

Drone scanning may for example be loaded into Pix4D. See video explanation of proposed settings.

We need a total of 4 files to drape Orthophoto on terrain in the GeoTIFF format.

Image / Drone Scan / Satellite: Orthophoto

  • .TIF
  • .TFW

Terrain model: DSM / DTM

  • TIF
  • TFW

Remember

  • All of these should be added in the same folder and zipped.
  • Include “DSM” in the name of the terrain model files – example: “Terrain_projectX_DSM.tif” and “Terrain_projectX_DSM.tfw”).
  • When uploading, and prompted with “Do you want to split models” remember to select “No split”

Orthophoto: Merging Tiffs in Archgis

To merge several GeoTIffs into one file, Archgis may be used. See video explanation of the process.

We need a total of 4 files to drape Orthophoto on terrain in the GeoTIFF format.

Image / Drone Scan / Satellite: Orthophoto

  • .TIF
  • .TFW

Terrain model: DSM / DTM

  • TIF
  • TFW

All of these should be added in the same folder and zipped.

Remember to include “DSM” in the name of the terrain model files – example: “Terrain_projectX_DSM.tif” and “Terrain_projectX_DSM.tfw”).

Orthophoto: Merging Tiffs in QGIS

To merge several GeoTIffs into one file, QGIS may be used. See images of the process.

  1. In the QGIS Browser Panel, select the GeoTiffs you want to merge and right click to add them to the main window.
  2. Select Raster > Miscellaneous > Merge
  3. In the Merge dialogue window, for Input files, browse to your directory containing your GeoTiff tiles. Select them all by holding Ctrl + select (Shift + select on a mac). For Output files, name your output file with the specified format of .tif for a georeferenced merged raster.
  4. Select “Creation Options” checkbox, and in the Profile drop down menu, select your compression level. We recommend any form of lossless compression (note: we do NOT recommend jpeg compression for GeoTiff merge export).

    “When we first merged two GeoTiffs of 5.24GB and 8.55GB without any compression, it generated a 24GB file! Use compression to save Hard Disk space.” 

  5. Select OK, let it do its thing. Merging takes a long time (depends on the size of the project), be patient and trust the process. It took us 2.5 hours to complete the first merge on a late 2013 iMac.

We need a total of 4 files to drape Orthophoto on terrain in the GeoTIFF format.

Image / Drone Scan / Satellite: Orthophoto

  • .TIF
  • .TFW

Terrain model: DSM / DTM

  • TIF
  • TFW

All of these should be added in the same folder and zipped.

Remember to include “DSM” in the name of the terrain model files – example: “Terrain_projectX_DSM.tif” and “Terrain_projectX_DSM.tfw”).

Panorama (360) images

If you are in doubt whether the images are included in your .e57 files, you can use a free software like Cloud Compare.

See top image to the right, it has no images.

See bottom image to the right, it has images. By Selecting the checkbox next to the image, it will appear in Cloud Compare