IGTEI Doha Hamad (OTHH) - Ortho4XP patch, v1.3
Copyright (c) 2026 IGTEI - Mostafa Haridy. Free for owners of IGTEI Doha Hamad.

What it does
  IGTEI Doha Hamad ships its own airport ground and no ortho imagery. If you fly with your own Ortho4XP
  tiles, this patch keeps the terrain mesh of tile +25+051 flat at the airport elevation (4.0 m / 13 ft)
  inside the airport boundary, so the photo terrain never pokes through or tilts under our ground.

Install
  1. Copy the folder "Patches/+25+051" from this zip into your Ortho4XP folder, so you get
     Ortho4XP/Patches/+25+051/OTHH_IGTEI.patch.osm
  2. In Ortho4XP build (or rebuild) tile +25+051 as usual (Step 1 vector data, Step 2 base mesh, Step 3 ortho,
     then build the tile). The log shows "Patching OTHH_IGTEI".
  3. In scenery_packs.ini keep IGTEI Doha Hamad ABOVE the zOrtho4XP_+25+051 folder (ortho tiles go to the bottom).

Notes
  - The patch only changes the terrain mesh of that tile. It contains no imagery.
  - Already built the tile before? Rebuild steps 2 and 3 for the patch to take effect.
