source: code/Website/open-flash-chart/Range.as

package {
        
        public class Range
        {
                public var min:Number;
                public var max:Number;
                public var step:Number;
                public var offset:Boolean;
                
                public function Range( min:Number, max:Number, step:Number, offset:Boolean )
                {
                        this.min = min;
                        this.max = max;
                        this.step = step;
                        this.offset = offset;
                }
                
                public function count():Number {
                        //
                        // range, 5 - 10 = 10 - 5 = 5
                        // range -5 - 5 = 5 - -5 = 10
                        //
                        //
                        //  x_offset:
                        //
                        //   False            True
                        //
                        //  |               |
                        //  |               |
                        //  |               |
                        //  +--+--+--+      |-+--+--+--+-+
                        //  0  1  2  3        0  1  2  3
                        //
                        // Don't forget this is also used in radar axis
                        //
                        if( this.offset )
                                return (this.max - this.min) + 1;
                        else
                                return this.max - this.min;                     
                }
                
                public function toString():String {
                        return 'Range : ' + this.min +', ' + this.max;
                }
        }
}