This bachelor’s thesis provides information about how some parameters influence the quality of a simulation result or the performance of the solar potential analysis tool by T. Kolbe and his team from the Technical University Munich. Especially the parameters point grid distance, the Octree parameters maxElements and maxLevel, the influence of the surface tolerance of a digital terrain model and the difference of the simulation output between city models with a level of detail 1 or 2 are included in this thesis. This influence depends firstly on the parameter itself and various other factors like the number of triangles that are implemented, the orientation of a shadowing feature in relation to the buildings, etc. For a better understanding of how the simulation result changes, several tests are performed in which only the input data is changed (e.g. for the DTM surface tolerance test) or in which only the configuration file settings are changed (e.g. for the Octree parameters test). The results of the analyses of these tests provide answers to the questions, how the quality of the simulation result or the performance of the tool change with different parameter settings and which settings of the aforementioned parameters are the most efficient in certain scenarios. The optimal range of the point grid distance is between one and three meters. Values set out of this range result in a very long simulation time or in low quality of the simulation result. A LoD1 city model can be an alternative to a LoD2 city model but only in very specific cases. Generally a LoD2 city model is almost always the better option because if the buildings in a region are of a geometrically simple structure, the LoD2 model has similar properties to the LoD1 model. The range of the surface tolerance for the low defined terrain tiles lies around 30m. If the hardware is sufficient, it is possible to implement a triangulated irregular network with a higher resolution of the surface tolerance. The quality of the simulation result then only increases by a small amount, depending on the distance and measures of the shadowing feature. Regarding the octree parameters can be said, that the maxlevel parameter can be set to a high value like 10 to 12, but only in combination with a maxelements value of 100-200 to get the fastest simulation result. Low set maxlevel parameters lead to a long simulation time and high set maxlevel parameters lead to a crash of the simulation if the maxelements parameter is also set to a low value like 3 to 10.     «

This bachelor’s thesis provides information about how some parameters influence the quality of a simulation result or the performance of the solar potential analysis tool by T. Kolbe and his team from the Technical University Munich. Especially the parameters point grid distance, the Octree parameters maxElements and maxLevel, the influence of the surface tolerance of a digital terrain model and the difference of the simulation output between city models with a level of detail 1 or 2 are in...     »