CadnaA Demo Version
A fully featured CadnaA demo version is available free of charge. 
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Sales Contact
Are you interested in buying CadnaA? Please contact your local distributor. Contact details you can find here.
CadnaA Users
CadnaA is successfully applied in many different industries in more than 60 countries all over the world. more
Noise Mapping
CadnaA is the most successful noise calculation and noise mapping software available. more
Modeling Terrain
CadnaA allows to model terrain with contour lines, height points and lines of fault. These options are shown here along with the definition of the standard height and the triangulation.
Having worked through the chapter 
Basics is the only precondition for modeling terrain.
Direct Links to the Videos
Entering a Hill from Contour Lines