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geom3d[point] - define a point
Calling Sequence
point(P, Px, Py, Pz)
point(P, [Px, Py, Pz])
Parameters
P
-
the name of the point
Px
the x-coordinate
Py
the y-coordinate
Pz
the z-coordinate
Description
A point is represented as a dot. It has position only, and has no length, width, or thickness.
A point P is represented by its ``x'', ``y'', and ``z'' coordinates.
To access the information relating to a point P, use the following function calls:
form(P)
returns the form of the geometric
object (i.e., point3d if P is a point).
coordinates(P)
returns [Px,Py,Pz].
xcoord(P)
returns Px which is the x-coordinate
of P.
ycoord(P)
returns Py which is the y-coordinate
zcoord(P)
returns Pz which is the z-coordinate
detail(P)
returns a detailed expression of the
point P.
The command with(geom3d,point) allows the use of the abbreviated form of this command.
Examples
See Also
geom3d[AreCollinear], geom3d[AreConjugate], geom3d[AreCoplanar], geom3d[midpoint], geom3d[OnSegment], geom3d[randpoint], geom3d[transformation], geom3d[vertices]
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