Surface Extraction from Curve Networks
This thesis deals with the topic of sketch-based 3D shape design as a special case of 3D modeling. Its purpose is to discuss, develop and implement a sketch-based modeling prototype, which is built upon experiences made with earlier systems. The focus thereby is on developing an intuitive, consistent and expressive modeling metaphor. This combines techniques for interactive 3D curve creation from sketch-based input, automatic topology extraction and subsequent surface creation.