I having been doing three tasks.
1. Checked web site of "Helsinki Region Infoshare”
I checked that web site. That site has many datasets of Helsinki.
But almost datasets can’t use to simulator because that don’t have height informations.
2. Checked sample dataset of CityGML format and freeware to load CityGML dataset
I checked and downloaded sample dataset of CityGML from official web site.
And I tried to use freeware to load CityGML dataset.
I succeeded to use freeware. I loaded sample dataset. I recognised a few about construction of CityGML.
3. Tried to use library in develop environment of Visual Studio
I tried to use “libcitygml” in develop environment of Visual Studio.
I succeeded linking path to library but I can’t compile for sample programs.