A new method to automatically extracting drawing information based on cell-grid and feature-point is proposed along with its algorithm principle and implementation steps.
提出了基于单元格和特征点的图纸数据自动提取策略，详细介绍了算法思想和实施步骤；
During information extracting, the algorithm can restore the original engineering drawing accurately, and meets the requirements of high-precision machining, and also realizes the blind extraction.
提取时可以精确地恢复原始工程图，满足了工程图加工精度高的要求，并且实现了盲提取。
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