Draws a vector between two points, in the current viewport
(grdraw from to color [highlight])
Arguments
2D or 3D points (lists of two or three reals) specifying one endpoint of the vector in terms of the current UCS. AutoCAD clips the vector to fit the screen.
2D or 3D points (lists of two or three reals) specifying the other endpoint of the vector in terms of the current UCS. AutoCAD clips the vector to fit the screen.
An integer identifying the color used to draw the vector. A -1 signifies XOR ink, which complements anything it draws over and which erases itself when overdrawn.
An integer, other than zero, indicating that the vector is to be drawn using the default highlighting method of the display device (usually dashed).
grdraw uses the normal display mode.
If highlight is omitted or is zero,Return Values
nil
grvecs function for a routine that draws multiple vectors.
The