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orthographicmore about orthographic

orthographic

 

  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Orthographic  \Or`tho*graph"ic\,  Orthographical 
  \Or`tho*graph"ic*al\,  a.  [Cf.  F.  orthographique  L. 
  orthographus  Gr  ?.] 
  1.  Of  or  pertaining  to  orthography,  or  right  spelling;  also 
  correct  in  spelling;  as  orthographical  rules  the  letter 
  was  orthographic. 
 
  2.  (Geom.)  Of  or  pertaining  to  right  lines  or  angles. 
 
  {Orthographic  or  Orthogonal},  {projection},  that  projection 
  which  is  made  by  drawing  lines,  from  every  point  to  be 
  projected,  perpendicular  to  the  plane  of  projection.  Such 
  a  projection  of  the  sphere  represents  its  circles  as  seen 
  in  perspective  by  an  eye  supposed  to  be  placed  at  an 
  infinite  distance,  the  plane  of  projection  passing  through 
  the  center  of  the  sphere  perpendicularly  to  the  line  of 
  sight. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Projection  \Pro*jec"tion\,  n.  [L.  projectio:  cf  F.  projection.] 
  1.  The  act  of  throwing  or  shooting  forward. 
 
  2.  A  jutting  out  also  a  part  jutting  out  as  of  a  building; 
  an  extension  beyond  something  else. 
 
  3.  The  act  of  scheming  or  planning;  also  that  which  is 
  planned;  contrivance;  design;  plan  --Davenant. 
 
  4.  (Persp.)  The  representation  of  something  delineation; 
  plan  especially,  the  representation  of  any  object  on  a 
  perspective  plane,  or  such  a  delineation  as  would  result 
  were  the  chief  points  of  the  object  thrown  forward  upon 
  the  plane,  each  in  the  direction  of  a  line  drawn  through 
  it  from  a  given  point  of  sight,  or  central  point;  as  the 
  projection  of  a  sphere.  The  several  kinds  of  projection 
  differ  according  to  the  assumed  point  of  sight  and  plane 
  of  projection  in  each 
 
  5.  (Geog.)  Any  method  of  representing  the  surface  of  the 
  earth  upon  a  plane. 
 
  {Conical  projection},  a  mode  of  representing  the  sphere,  the 
  spherical  surface  being  projected  upon  the  surface  of  a 
  cone  tangent  to  the  sphere,  the  point  of  sight  being  at 
  the  center  of  the  sphere. 
 
  {Cylindric  projection},  a  mode  of  representing  the  sphere, 
  the  spherical  surface  being  projected  upon  the  surface  of 
  a  cylinder  touching  the  sphere,  the  point  of  sight  being 
  at  the  center  of  the  sphere. 
 
  {Globular},  {Gnomonic},  {Orthographic},  {projection},etc.  See 
  under  {Globular},  {Gnomonic},  etc 
 
  {Mercator's  projection},  a  mode  of  representing  the  sphere  in 
  which  the  meridians  are  drawn  parallel  to  each  other  and 
  the  parallels  of  latitude  are  straight  lines  whose 
  distance  from  each  other  increases  with  their  distance 
  from  the  equator,  so  that  at  all  places  the  degrees  of 
  latitude  and  longitude  have  to  each  other  the  same  ratio 
  as  on  the  sphere  itself 
 
  {Oblique  projection},  a  projection  made  by  parallel  lines 
  drawn  from  every  point  of  a  figure  and  meeting  the  plane 
  of  projection  obliquely. 
 
  {Polar  projection},  a  projection  of  the  sphere  in  which  the 
  point  of  sight  is  at  the  center,  and  the  plane  of 
  projection  passes  through  one  of  the  polar  circles. 
 
  {Powder  of  projection}  (Alchemy.),  a  certain  powder  cast  into 
  a  crucible  or  other  vessel  containing  prepared  metal  or 
  other  matter  which  is  to  be  thereby  transmuted  into  gold. 
 
 
  {Projection  of  a  point  on  a  plane}  (Descriptive  Geom.),  the 
  foot  of  a  perpendicular  to  the  plane  drawn  through  the 
  point. 
 
  {Projection  of  a  straight  line  of  a  plane},  the  straight  line 
  of  the  plane  connecting  the  feet  of  the  perpendiculars  let 
  fall  from  the  extremities  of  the  given  line 
 
  Syn:  See  {Protuberance}. 
 
  From  WordNet  r  1.6  [wn]: 
 
  orthographic 
  adj  :  of  or  relating  to  or  expressed  in  orthography




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