Multistroke Grouping of Online Freehand Axonometric Sketches for Mechanical Models

Figure 12

Axonometric sketch consists of line segments and polylines with hidden parts drawn in solid lines. (a) Input. (b) Closed regions. (c) Region boundary bands. (d) Stroke grouping. (e) Multistroke simplification. (f) Final results. (g) Ku et al. [6]. (h) Our previous multistroke grouping method [7].

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