draw_line

#Draw.Line

##Syntax Draw.Line (x1, y1, x2, y2, Color : int)

##Description The Draw.Line procedure is used to draw a line on the screen from (x1, y1) to (x2, y2) using the specified Color.

##Example This program draws a large X, reaching to each corner of the screen using color number 1. The maxx and maxy functions are used to determine the maximum x and y values on the screen. The point (0,0) is the left bottom of the screen, (maxx, maxy) is the right top, etc.

    View.Set ("graphics")
    % First draw a line from the left bottom to right top
    Draw.Line (0, 0, maxx, maxy, 1) 
    % Now draw a line from the left top to right bottom
    Draw.Line (0, maxy, maxx, 0, 1)

##Details The screen must be in a "graphics" mode. See the View.Set procedure for details. If the screen is not in a "graphics" mode, an error will occur.

##Status Exported qualified.

This means that you can only call the function by calling Draw.Line, not by calling Line.

##See also view_set.html, maxx.html, maxy.html and the various procedures in the drawmodule.html unit.