【2017年整理】绘制支架组合体的三视图.ppt

;1、组合体的概念是如何叙述的？ ;一、组合体的组成方式;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;;;;1．两形体相接;二、组合体各组成部分表面的连接关系;;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;;二、组合体相邻表面的连接方式;俯视图中有 多余图线吗？;;;　　两形体表面间的相互位置关系有：平齐、不平齐、相交 和相切 四种形式。;Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.;;特殊情况 当两圆柱面相切时，这两个圆柱面的公切平面垂直于投影面时，应画出相切的素线在该投影面上的投影，也就是两个柱面的分界线。;; 三视图的形成;二、三视图的投影规律;三、组合体的画图和读图方法