Difference between revisions of "Tetrahedron Command"
From GeoGebra Manual
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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. | ||
− | ; Tetrahedron [ <Point>, <Point>] | + | |
− | :Creates a tetrahedron | + | ; Tetrahedron[ <Point>, <Point>, <Point>] |
− | :{{Note|1= | + | :Creates a tetrahedron with the three points of the first face. The points have to draw an equilateral rectangle for the tetrahedron to be defined. |
+ | |||
+ | ; Tetrahedron[ <Point>, <Point>] | ||
+ | :Creates a tetrahedron with the two points of the first face, and the third point automatically created on a circle, so that the tetrahedron can rotate around its first edge. | ||
+ | :{{Note|1=Tetrahedron[A, B] is a shortcut for Tetrahedron[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]], [[Octahedron Command|Octahedron]], [[Icosahedron Command|Icosahedron]], [[Dodecahedron Command|Dodecahedron]] commands. }} | {{Note|1=See also [[Cube Command|Cube]], [[Octahedron Command|Octahedron]], [[Icosahedron Command|Icosahedron]], [[Dodecahedron Command|Dodecahedron]] commands. }} |
Revision as of 21:52, 10 November 2014
This page is about a feature that is supported only in GeoGebra 5.0. |
- Tetrahedron [ <Point>, <Point>, <Direction> ]
- Creates a tetrahedron 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 tetrahedron 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.
- Tetrahedron[ <Point>, <Point>, <Point>]
- Creates a tetrahedron with the three points of the first face. The points have to draw an equilateral rectangle for the tetrahedron to be defined.
- Tetrahedron[ <Point>, <Point>]
- Creates a tetrahedron with the two points of the first face, and the third point automatically created on a circle, so that the tetrahedron can rotate around its first edge.
- Note: Tetrahedron[A, B] is a shortcut for Tetrahedron[A, B, C] with C = Point[Circle[Midpoint[A, B], Distance[A, B] sqrt(3) / 2, Segment[A, B]]].
Note: See also Cube, Octahedron, Icosahedron, Dodecahedron commands.