This adds mathematical lines to a scene. Their intersection with the current
bounding box will be drawn.
Usage
rgl.abclines(x, y = NULL, z = NULL, a, b = NULL, c = NULL, ...)
abclines3d(x, y = NULL, z = NULL, a, b = NULL, c = NULL, ...)
Arguments
x,y,z
Coordinates of points through which each line passes.
a,b,c
Coordinates of the direction vectors for the lines.
...
Material properties.
Value
A shape ID of the object is returned invisibly.
Details
These functions draw the segment of a line that intersects the current
bounding box of the scene using the parametrization
$(x,y,z) + (a,b,c) * s$ where $s$ is a real number.
Any reasonable way of defining the
coordinates x,y,z and a,b,c is acceptable.
See the function xyz.coords
for details.
See Also
planes3d, rgl.planes for mathematical planes.
segments3d draws sections of lines that
do not adapt to the bounding box.