Difference between revisions of "Icosahedron Command"

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(command syntax: changed [ ] into ( ))
 
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<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|3D}}
 
<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|3D}}
;Icosahedron[ <Point>, <Point>, <Direction> ]
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;Icosahedron( <Point>, <Point>, <Direction> )
 
:Creates an icosahedron having the segment between the two points as an edge.  
 
:Creates an icosahedron having the segment between the two points as an edge.  
 
:The other vertices are univocally determined by the given direction, that needs to be:
 
:The other vertices are univocally determined by the given direction, that needs to be:
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:* a face with the segment as an edge in a plane parallel to the polygon/plane.
 
:* a face with the segment as an edge in a plane parallel to the polygon/plane.
  
; Icosahedron[ <Point>, <Point>, <Point>]
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; Icosahedron( <Point>, <Point>, <Point>)
 
:Creates an icosahedron with the three points of the first face. The points have to draw an equilateral triangle for the icosahedron to be defined.
 
:Creates an icosahedron with the three points of the first face. The points have to draw an equilateral triangle for the icosahedron to be defined.
  
; Icosahedron[ <Point>, <Point>]
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; Icosahedron( <Point>, <Point>)
 
:Creates an icosahedron with the two points of the first face, and the third point automatically created on a circle, so that the icosahedron can rotate around its first edge.
 
:Creates an icosahedron with the two points of the first face, and the third point automatically created on a circle, so that the icosahedron can rotate around its first edge.
:{{Note|1=Icosahedron[A, B] is a shortcut for Icosahedron[A, B, C] with C = Point[Circle[Midpoint[A, B], Distance[A, B] sqrt(3) / 2, Segment[A, B]]].}}
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:{{Note|1=Icosahedron(A, B) is a shortcut for Icosahedron(A, B, C) with C = Point(Circle(Midpoint(A, B), Distance(A, B) sqrt(3) / 2, Segment(A, B))).}}
  
 
{{Note|1=See also [[Cube Command|Cube]], [[Tetrahedron Command|Tetrahedron]], [[Octahedron Command|Octahedron]], [[Dodecahedron Command|Dodecahedron]] commands. }}
 
{{Note|1=See also [[Cube Command|Cube]], [[Tetrahedron Command|Tetrahedron]], [[Octahedron Command|Octahedron]], [[Dodecahedron Command|Dodecahedron]] commands. }}

Latest revision as of 12:45, 30 September 2017


Icosahedron( <Point>, <Point>, <Direction> )
Creates an icosahedron having the segment between the two points as an edge.
The other vertices are univocally determined by the given direction, that needs to be:
  • a vector, a segment, a line, a ray orthogonal to the segment, or
  • a polygon, a plane parallel to the segment.
The created icosahedron will have:
  • a face with the segment as an edge in a plane orthogonal to the given vector/segment/line/ray, or
  • a face with the segment as an edge in a plane parallel to the polygon/plane.
Icosahedron( <Point>, <Point>, <Point>)
Creates an icosahedron with the three points of the first face. The points have to draw an equilateral triangle for the icosahedron to be defined.
Icosahedron( <Point>, <Point>)
Creates an icosahedron with the two points of the first face, and the third point automatically created on a circle, so that the icosahedron can rotate around its first edge.
Note: Icosahedron(A, B) is a shortcut for Icosahedron(A, B, C) with C = Point(Circle(Midpoint(A, B), Distance(A, B) sqrt(3) / 2, Segment(A, B))).
Note: See also Cube, Tetrahedron, Octahedron, Dodecahedron commands.
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