正方体的正投影演示
2020-05-20 01:21
本范例演示正方体在指定平面上的正投影过程。通过构造正方体的八个顶点、十二条棱和六个面，结合向量、平面与旋转命令，展示三维立体图形沿特定方向向投影面作正交投影的几何原理。可观察不同投影方向下正方体各面与棱的投影形态变化，帮助理解正投影的定义、性质及空间几何关系。
所属专题
立体几何
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<layer val="0"/>
<labelMode val="0"/>
<animation step="1" speed="1" type="0" playing="false"/>
</element>
</construction>
</geogebra>