Abstract
The Purpose of this study is to generate surface patches which are useful throughout the product-design process in a very short period. We have studied two methods. One is surface generation using a hand-drawn idea-sketch. The other is surface generation using the three dimensional point data measured by commercially obtainable measuring instrument. For hand-drawn idea-sketches, logarithmic transformation, laplacian operation and natural spline curves are introduced. For the three dimensional point data, Delaunay Triangulation is introduced to construct a triangular mesh. Pseudo-normal vectors are calculated using the constructed triangular mesh in a very short time. Product-designers are able to examine the form of the triangular mesh by shading or newly developed color striped shading using pseudo-normal vectors. Then product designers are able to generate the surface patches which are easy to manipulate for narrowing down to the final design.
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Kuragano, T., Furukawa, S., Kuroda, M. (2001). Method to Generate Freeform Surfaces from Idea-sketch and Three Dimensional Data. In: Kimura, F. (eds) Geometric Modelling. GEO 1998. IFIP — The International Federation for Information Processing, vol 75. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-35490-3_24
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DOI: https://doi.org/10.1007/978-0-387-35490-3_24
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4757-5322-6
Online ISBN: 978-0-387-35490-3
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