기술 도면 표시 모드 
 Summary : 이 플러그인 은 은선 과 다른 옵션 이 있 는 새로운 기술 도면 표시 모드 를 Rhino 4 . 0 에 추가 합니다 . 이 플러그인 은 아직 프로토타입 단계 입니다 . 
 Download - Updated 7 - feb - 2007 
 Because of the way this type of thing needs to be done ( ie . Multi - pass algorithm ) , this plugin has to implement it ' s own “ Pipeline ” … However , it is derived from Rhino ' s standard OpenGL pipeline , which means anything you can do in Rhino ' s OpenGL display can be done using this pipeline , with the addition of a “ Technical Display ” capability . 
 The term “ Technical Display ” is used because that ' s how Scott referred to it … And what it means is that all surface and mesh objects will be displayed using : 
 Real - time silhouettes 
 … and will occlude all objects that lie behind them . This can be considered a “ hidden line ” style of drawing … but keep in mind that this plugin does not draw isocurves or mesh wireframes ( ie . A NURBS sphere will look just like a Mesh sphere ) , only the 3 things mentioned above . 
 Having said that , there are 4 “ toggle ” mode commands : 
 … all of which should be self - explanatory … except maybe the TechToggleHiddenLines … 
 The TechToggleHiddenLines , when ON , will display certain object types as “ dashed ” , single - pixel thick lines when they lie behind surface and mesh objects … as well as the three elements above : silhouettes , borders , and creases . 
 Once installed , the plugin creates a display mode called “ Technical ” , which will now be available as a standard display mode , and selected and set the same way any display mode is . 
 When you select “ Technical ” as a display mode , 2 things happen : 
 The plugin begins creating “ Technical Drawing Data ” for all surfaces and meshes “ visible ” ( and if there aren ' t any render meshes , it will create those too ) . 
 The view mode is set to use the new pipeline , and all objects will display accordingly . 
 If you cancel out of # 1 , then ALL viewports that are currently set to “ Technical ” are set to “ Wireframe ” . 
 You can assign this new pipeline to any of your other custom modes , but you can not change the “ Technical ” mode ' s pipeline to something else … V 4 provides a way to lock out pipelines , and this plugin does that … That way , “ Technical ” will always be , well , “ Technical ” … . You assign pipelines by going into Option → Appearance → AdvancedSettings →[ Mode ] → Other Settings : Pipeline , there you will see a dropdown that enumerates all available pipelines ( For that mode ) , “ Technical 2 D ” is the name of the pipeline that this plugin implements . Note : You can not change the pipeline for any of Rhino ' s standard modes , only new , custom modes can take on different pipes … Most people will probably never have to or want to do this , and the “ Technical ” mode that comes with this plugin will probably suffice … 
 Final note : Things look a LOT better when you have AA enabled . 
 1 : copy the file " TechnicalDrawing . rhp " to the folder Plug - ins in the Rhinoceros 4 . 0 folder ( or any other folder you like ) 
 2 : in Rhino go to Options -> Rhino Options -> Plug - ins | click the Install button and browse to the file " TechnicalDrawing . rhp " | click Open 
 ( willem says : feel free to edit / layout this installation guide ) 
 You can not assign the “ Technical ” display mode to individual objects ( i . e . SetObjectDisplayMode ) , however , once in a Technical display mode , you can assign all other modes to individual objects … in other words , Technical mode is a superset of all other modes ( that support the standard OpenGL pipeline ) . Thus , you can still mix and match object display modes , you just have to start in the Technical mode . 
 2 D text disappears behind all surfaces and meshes without any kind of hidden lines , regardless of the whether TechToggleHiddenLines is ON … I can easily have text always show in front , but that ' s not how it works in shaded modes , so I did not do that . 
 Dimensions suffer the same thing as in # 2 , but could also be shown in front . 
 Initial calculations of the technical display data can take a long time for dense mesh objects … and there ' s nothing I can do about that … and if the object changes in any way , the calculations have to be redone . 
 Hidden lines for curve objects show up as dotted lines instead of dashed lines , because the SDK doesn ' t provide a way to override that ( my fault ) , without having to re - implement the entire curve drawing inside the plugin ' s engine ( which I could do if this is a big issue ) . 
 Currently does not work in Layout / detail views … will be fixed in SR 1 . 
 Lines are created where there should be none , and the other way around . ( Olivier Suire ) 
 Make it possible to blend Technical with Shaded display modes , just like in all the mechanical cads . ( Olivier Suire ) 
 When “ Technical ” is available in detail views , make sure it is possible to snap to object silhouette edges . ( Olivier Suire ) 
 Appart from the above remarks , I am really happy with this new display mode . No more explaining to the client what are these funny curves on my surfaces : “ Oh ! these are isoparms . They represent all the points having the same parameter in the nurbs equation ” 
 -“ Duhh ? ” At last , I can do realistic screen shots of my models . Thanks ! ( Olivier Suire ) 
 It ' s realy good help for representing drawing . I like it ! I ' m waiting for use it in the detailed view to make technical print . ( Riccardo Gatti ) 
 — Dimstogios @ gmail . com Nice plugin , thanks . Some wishes : It would be nice to choose single pixel width for edge thikness and the intersection of objects to be shown . Finally one that I do not know if it matches here , relevant to linewidths , which is the ability to choose in which side of a line the linewidth to be applied . 
 — nice plugin ! my wish : could the cuted edge when using a cliping plane also be displayed ? thanks