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Sketched overdrawn lines for editing spline-based three-dimensional curves
Sketched overdrawn lines for editing spline-based three-dimensional curves
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机译:草绘的覆盖线,用于编辑基于样条线的三维曲线
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摘要
An overdraw method for editing a three-dimensional geometry includes receiving a three-dimensional geometry including a plurality of individual curves whose positions are defined by a plurality of control points, receiving a polyline overdrawn on the three-dimensional geometry, matching the polyline to the three-dimensional geometry to determine a portion of the three-dimensional geometry being modified, recognizing a shape feature of the polyline to determine a shape modification to apply to the three-dimensional geometry, shifting the three-dimensional geometry to determine a modified geometry by changing a position of at least one of the control points towards the polyline, and matching the modified geometry with at least one symmetry operator to determine whether the changed position satisfies a constraint and applying the constraint to the modified geometry to further modify the modified geometry.
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