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Keyboard ALT + g to toggle grid overlay

「曲面曲線萃取」工具

透過曲面或實體面上的指定點萃取等角線曲線,以確定任何造型的等高線。在您點選該點之前,此工具會顯示所產生之雲形線的預覽。您可以在 U 或 V 方向指定等角線的方向。