OMNET++ giving [osgEarth]* CropFilter - METHOD_CROPPING not available - please compile osgEarth with GEOS

[pirata01]

Hi, thanks for reading my question.

I have osgearth, geos, and gdal installed using apt-get, but still get the 'subject error' when running the default omnet++ example loacted at: https://github.com/omnetpp/omnetpp/tree/master/samples/osg-earth

To start, here is my setup:

1. Ubuntu: Ubuntu 20.04.6 LTS
2. OMNET++: Version: 6.0, Build id: 220413-71d8fab425

The following installed using apt-get:

1. libgeos++-dev, libgeos-3.8.0, libgeos-c1v5, libgeos-dev, and libgeos-doc: 3.8.0-1build1
2. gdal-bin: 3.0.4+dfsg-1build3
3. openscenegraph-plugin-osgearth, libosgearth-dev: 2.10.2+dfsg-2build2
4. osgearth: 2.10.2+dfsg-2build2
5. libosgearth-dev: 2.10.2+dfsg-2build2
   *Missing anything?

Note: have the following override in OMNET++ configuration "Run/Debug settings":

1. MESA_GL_VERSION_OVERRIDE = 3.3
2. MESA_GLSL_VERSION_OVERRIDE = 330.
   This allows the scene to render, otherwise the scene objects are black.

With this error, the simulation runs, however the console log gets hammered with the 'subject' error.
I tried to follow the instruction to build the osgEarth located here, but no luck:
https://docs.osgearth.org/en/3.2/build.html

• I cannot get "Step 3 - Configure CMake" working and unsure if this command is correct:
  cmake -S osgearth -B build -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_TOOLCHAIN_FILE=/home/patrick/Programs/vcpkg/scripts/buildsystems/vcpkg.cmake

Any guidance would be appreciated.

Cheers,
Patrick

[gwaldron]

Even though you apparently have GEOS installed, CMake is not picking it up. Make sure your CMake configuration for osgEarth is pointing to the GEOS C libraires.

[bllgg]

Is there any specific way to point the GEOS C libraries to the CMake configurations in osgEarth?

[gwaldron]

Fire up cmake-gui and plug them in there?