CompuServe Messages

#Anyone seen a B-Spline?

    03-Jan-89 20:33:21
Fm: John Draper 76703,4322
To: Art Steinmetz 76044,3204
Art, I did a thing to draw a rectangle in ABasic back in '85. The algorithm is fairly simple. Get your x and y starting point, and the x and y ending points, and draw the four lines. Assume x1, y1 are start values for x and y, and x2,y2 are end values: Draw x1,y1 to x2,y1 Draw x2,y1 to x2,y2 Draw x2,y2 to x1,y2 Draw x1,y2 to x1,y1 If you have to do a Move to position the cursor, you might be better off drawing the two lines from x1,y1, then the two lines from x2,y2. -larry