基于数位板手势辅助的工程图矢量化系统

Digital Panel Gesture Guided Engineering Drawing Vectorization System

工程图纸矢量化是建设数字化图纸资源库的关键环节。由于工程图图形元素的多样性和复杂性,现有工程图矢量化方法在识别精度上还需要进一步改进。通过开发基于数位板手势操作的工程图元识别系统,对工程图中非直线型图元进行预识别处理,从而形成了二阶段工程图矢量化方法。该方法完全实现了工程图元素的精确识别,特别适合包含少量非直线图元的工程图矢量化应用。

Engineering drawing veetorization is a key issue in enterprise digital drawing database construction. For the diversity and complexity of the graphical elements in drawings, existing algorithms and systems are still not satisfactory in recognition precision. To accurately vector the arcs that are easily mis-vectored, a human guided auxiliary vectorization system is implemented. The two-phrase system first vector the none-line segments by the guidance of gestures from a digitizing tablet, then followed by automatic recognition, the handling process of the straight line segments are easily recognizable by existing algorithms. This method fulfills the needs of drawing vectorization accuracy and suitable for the vectorization applications of engineering drawing with minor arcs elements.