Difference between revisions of "Icosahedron Command"
From GeoGebra Manual
m (Text replace - "" to "") |
m |
||
Line 1: | Line 1: | ||
− | <noinclude>{{Manual Page|version=5.0}}</noinclude> | + | <noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|3D}} |
− | {{command|3D}} | ||
;Icosahedron[ <Point>, <Point>, <Direction> ] | ;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. |
Revision as of 11:50, 5 August 2015
- 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.