ranjithahb Posted June 21, 2014 Share Posted June 21, 2014 explain me the angle of projection in brief.....why i asked is ,,,,all r explaining me in a lengthy manner...can any1 explain me in different way ...giving known and best instance Quote Link to comment Share on other sites More sharing options...
irneb Posted June 23, 2014 Share Posted June 23, 2014 explain me the angle of projection in briefWould you please create a new thread for this? It's not related to this thread. Quote Link to comment Share on other sites More sharing options...
ReMark Posted June 23, 2014 Share Posted June 23, 2014 explain me the angle of projection in brief.....why i asked is ,,,,all r explaining me in a lengthy manner...can any1 explain me in different way ...giving known and best instance "Orthographic Projection is a way of drawing an 3D object from different directions." Source: V.Ryan 2002-2010 Questions is, are you wanting to use first angle or third angle? My guess would be third angle. Quote Link to comment Share on other sites More sharing options...
irneb Posted June 24, 2014 Share Posted June 24, 2014 (edited) explain me the angle of projection in briefDepends what you're drawing. 3 major types of drawings: Orthogonal (Plan / Elevation / Section) - angle would be "from top" = Plan, "from side (left/right/front/back)" = Elevation/Section. Refer to Remark's answer for more detail regarding this. These would then be analogous to the angle-of-projection. http://www.technologystudent.com/designpro/ortho1.htm Isometric - a view skew-on to the 3D model. Also referred to a oblique. The normal way would be as this Perspective - a view similar to what your eye would see in real life. 2 ways to draw this: Manually you'd use vanishing points to define where a direction becomes "infinite" to simulate a horizon. You can use either 1, 2 or 3 vanishing points - 3 being the closest match to real-world, though much more difficult to draw. Normally 2 gives you adequate results for presentation. So the vanishing point(s) define the angle(s) of projection. Automatically from a computer CAD - tends work by asking you where a camera is, in what direction it's looking, and what its "lens" properties are. This tends to give you the exact view as an eye would see it. The camera's view direction defines the angle-of-projection. http://www.we-r-here.com/cad/tutorials/level_3/viwing-in-3d-autocad-3-4.htm Edited June 24, 2014 by irneb Quote Link to comment Share on other sites More sharing options...
SLW210 Posted June 24, 2014 Share Posted June 24, 2014 I create a new thread for the off topic portion AutoCAD Drawing Management & Output Angle of Projection Quote Link to comment Share on other sites More sharing options...
rkent Posted June 24, 2014 Share Posted June 24, 2014 http://www.cadtutor.net/forum/showthread.php?62835-Is-this-a-first-angle-or-third-angle-projection Go to post 16 Quote Link to comment Share on other sites More sharing options...
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