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rhino:soliddiscussion [2016/05/02]
sandy
rhino:soliddiscussion [2016/05/02] (current)
sandy
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 =====Difference between Rhino and a classic Solid modeler===== =====Difference between Rhino and a classic Solid modeler=====
  
-Unlike a solids modeler such as SolidWorks ​that works primarily with solids entities, Rhino uses a more flexible hybrid approach. But, if you export a solid from either package (say a cube) to STL, VRML etc., the result is the same. A boundary representation of the shell and no material inside the zero thickness skin. The solid, for want of a better word, is defined by the boundary and the surface direction. That is to say that everything inside must be by definition - __solid__.+Unlike a solids modeler such as SOLIDWORKS ​that works primarily with solids entities, Rhino uses a more flexible hybrid approach. But, if you export a solid from either package (say a cube) to STL, VRML etc., the result is the same. A boundary representation of the shell and no material inside the zero thickness skin. The solid, for want of a better word, is defined by the boundary and the surface direction. That is to say that everything inside must be by definition - __solid__.
  
 The way this works can be illustrated by using the Surface from Planar Curves command. The way this works can be illustrated by using the Surface from Planar Curves command.
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   * Delete the surface and draw another square inside the first one. This represents a hollow cube (one with a wall section).   * Delete the surface and draw another square inside the first one. This represents a hollow cube (one with a wall section).
   * Using the Surface from Planar Curves command, insert a surface using both squares as the boundaries. This is the slice through the cube with a wall section that is understood by the software as being a solid.   * Using the Surface from Planar Curves command, insert a surface using both squares as the boundaries. This is the slice through the cube with a wall section that is understood by the software as being a solid.
-  * The important thing to notice is that the software understands the multiple boundaries and can resolve what is the "​meat"​ in the solid. Or in this example a slice through it.+  * The important thing to notice is that the software understands the multiple boundaries and can resolve what is the "​meat"​ in the solid. Orin this example a slice through it.
  
 =====Truth in modeling===== =====Truth in modeling=====
rhino/soliddiscussion.txt ยท Last modified: 2016/05/02 by sandy