ug建模基本命令实体建模基本.ppt

3.8 扩展特征 （2）回转特征 执行回转体命令，可以将截面曲线沿指定轴向旋转一定角度，以生成实体。 例如，通过指定旋转轴和旋转角度来生成实体。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 3.8 扩展特征 （2）回转特征 例如，通过指定回转轴和回转角度来生成实体。 图 指定回转曲线 图 指定回转轴 回转曲线 回转轴 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 3.8 扩展特征 （2）回转特征 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 3.8 扩展特征 （3）扫掠特征 扫描特征是截面线串沿着引导线串(路径)生成实体。 扫掠规则: 1.一个完全连续、封闭的截面线串沿引导线扫描时将创建一个实体。 2.一个开放的截面线串沿一条开放的引导线串扫描时将创建一个片体。 3.一个开放的截面线串沿一条封闭的引导线串扫描时将创建一个实体。 4.当使用偏置扫描时，创建有厚度的实体。 5.每次只能选择一条截面线串和一条引导线串。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 3.8 扩展特征 （3）扫掠特征 扫描特征是截面线串沿着引导线串(路径)生成实体。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 3.9 特征编辑 特征编辑是指对已有的实体特征进行各种操作，包括编辑特征参数、编辑定位尺寸、移动特征等。 在菜单栏中选择“编辑”→“特征”选项，可展开特征编辑下拉式菜单。如图所示。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. UG建模练习 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. UG建模练习 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. UG建模练习 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 要求：利用特征的参数编辑操作来完成对实体模型的修改 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 要求：利用特征的参数编辑操作来完成对实体模型的修改 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. UG建模练习 Evaluation only. Created with Aspose.Slides fo