
plptex3: Write text inside the viewport of a 3D plot 

DESCRIPTION:

    This function is used in example 28. 

SYNOPSIS:

plptex3(wx, wy, wz, dx, dy, dz, sx, sy, sz, just, text)

ARGUMENTS:

    wx (PLFLT, input) :    x world coordinate of reference point of
    string. 

    wy (PLFLT, input) :    y world coordinate of reference point of
    string. 

    wz (PLFLT, input) :    z world coordinate of reference point of
    string. 

    dx (PLFLT, input) :    Together with dy and 
    dz, this specifies the inclination of  the string.    The baseline of
    the string is parallel to a line  joining (
    x, 
    y, 
    z) to (
    x+
    dx, 
    y+
    dy, 
    z+
    dz). 

    dy (PLFLT, input) :    Together with dx and 
    dz, this specifies the inclination of the string. 

    dz (PLFLT, input) :    Together with dx and 
    dy, this specifies the inclination of the string. 

    sx (PLFLT, input) :    Together with sy and 
    sz, this specifies the shear of  the string.  The string is sheared so
    that the characters are  vertically parallel to a line joining (
    x, 
    y, 
    z) to (
    x+
    sx, 
    y+
    sy, 
    z+
    sz). If sx = 
    sy = 
    sz = 0.) then the text is not sheared. 

    sy (PLFLT, input) :    Together with sx and 
    sz, this specifies shear of the string. 

    sz (PLFLT, input) :    Together with sx and 
    sy, this specifies shear of the string. 

    just (PLFLT, input) :    Specifies the position of the string relative
    to its reference point.  If just=0., the reference point is at the
    left and if just=1., it is at the right of the string.    Other
    values of just give intermediate justifications. 

    text (const char *, input) :    The string to be written out. 
