procedure sbtext

Write a text string in 3-d perspective. All (x,y,z) values are taken to be given in world coordinates. The z-component of the eye-poisition should be positive and that of the text string should be negative; the viewing-screen is fixed at z=0.

Syntax
sbtext EYE,TEXT,ICOL,PIVOT,FJUST,ORIENT,SIZE

Arguments

ARGUMENT    TYPE I/O DIMENSION DESCRIPTION

EYE:   R*4 I 3 (x,y,z) coordinate of eye-position.

TEXT:   C*1 I * The text string to be written.

ICOL:   I*4 I - Colour index for text.

PIVOT:   R*4 I 3 (x,y,z) coordinate of pivot point.

FJUST:   R*4 I - Position of pivot along the text:

   0.0=left, 0.5=centre, 1.0=right.

ORIENT:   R*4 I 3 x 2 (x,y,z) for X-length and Y-height

   directions of the text.

SIZE:   R*4 I - Height of the reference symbol "A".

ARGUMENT	TYPE I/O DIMENSION DESCRIPTION
EYE:	R*4 I 3 (x,y,z) coordinate of eye-position.
TEXT:	C1 I The text string to be written.
ICOL:	I*4 I - Colour index for text.
PIVOT:	R*4 I 3 (x,y,z) coordinate of pivot point.
FJUST:	R*4 I - Position of pivot along the text:
	0.0=left, 0.5=centre, 1.0=right.
ORIENT:	R*4 I 3 x 2 (x,y,z) for X-length and Y-height
	directions of the text.
SIZE:	R*4 I - Height of the reference symbol "A".