Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

                                                 ◄Contents►  ◄Index►  ◄Back►
──────────────────────────────────────────────────────────────────────────────
Rotation, Color, and Scale-Factor Commands
 
The rotation, color and scale-factor commands let you change the appearance
of a drawing by rotating it, changing colors, or scaling it:
 
    Command  Description  Range of values           Comments
    ═══════  ═══════════  ════════════════════════  ═════════════════════════
    A n      Set angle    n = 0 to 3, where         Figures rotated 90° or
             rotation                 0 is 0°,      270° are scaled so they
                                      1 is 90°,     appear the same size
                                      2 is 180°,    on a monitor screen
                                      3 is 270°.    with a 4:3 aspect ratio.
 
    TA n     Turn an      -360 <= n <= 360          If n is positive, coun-
             angle                                  terclockwise rotation.
 
    S n      Set scale    1 <= n <= 255             Set scale factor n,
                                                    which can range from 0
                                                    to 255, inclusive.
                                                    Increase or decrease
                                                    length of moves. The
                                                    default for n is 4,
                                                    which causes no scaling.
                                                    The scale factor
                                                    multiplied by movement-
                                                    command arguments
                                                    (divided by 4) gives
                                                    the actual distance
                                                    moved.
    C n      Set color                              See the COLOR, PALETTE,
                                                    and SCREEN statements
                                                    for discussions of valid
                                                    color numbers and
                                                    attributes.
 
    P p,b                                           p is the paint color
                                                    for a figure's interior,
                                                    while b is the
                                                    paint color for the
                                                    figure's border.
 
Usage Notes
    ■ See the ◄PAINT Statement► for more information about painting an area
      with a graphic pattern.
    ■ The following example uses TA to draw spokes:
          SCREEN 1
          FOR D = 0 TO 360 STEP 10
              DRAW "TA=" + VARPTR$(D) + "NU50"
          NEXT D
 
See Also    ◄DRAW►
            ◄Line-Drawing and Cursor-Movement Commands►
            ◄X, the Substring Command►