Draws a string in the plane of the reference parallelogram (for use with selected TDPACK routines).
Available in version 4.3.1 and later.
procedure tdplch ( wks  : graphic, xpos  : float, ypos  : float, chrs  : string, size  : float, angle  : float, counter  : float )
Input scalars specifying the parallelogram coordinates of a point relative to which the character string is to be positioned.chrs
The string to draw.size
A float scalar specifying the width of the characters to be used as a multiple of the X dimension of the reference parallelogram. If the reference parallelogram is not a square, distortion of the characters is to be expected: for example, if the reference parallelogram is twice as wide as it is high, then the same will be true of characters drawn by tdplch.angle
A float scalar specifying the angle, in degrees, at which the character string is to be drawn relative to the reference parallelogram (0 => in the direction of positive X, 90 => in the direction of positive Y, 180 => in the direction of negative X, and so on).counter
A float scalar specifying how the character string is to be centered relative to the point (xpos,ypos) within the reference parallelogram. If counter = -1, the leading edge of the character string will be placed at (xpos,ypos); if counter = 0, the center of the character string will be placed at (xpos,ypos); and if counter = +1, the trailing edge of the character string will be placed at (xpos,ypos). Other values may be used, with the logical results; for example, if counter = -.5, the point halfway between the leading edge and the center of the character string will be placed at (xpos,ypos).
This routine is part of the low-level TDPACK package, which is a group of Fortran and C callable routines for projecting objects from a 3-dimensional coordinate system having U, V, and W axes to a 2-dimensional projection plane having X and Y axes and/or for drawing the projections of those objects. This can be referred to somewhat loosely as "drawing objects in three dimensions".
Please see the documentation on TDPLCH for a full description of this procedure.
No examples are currently available for this function. Please see the documentation on TDPLCH for more information about this function.