ius: 0.45,
                heightSegments: 16,
                widthSegments: 32
            });

           var colors = [
                [0.56, 0.57, 0.58], //铁
                [0.95, 0.64, 0.54], //铜
                [1, 0.71, 0.29], //金
                [0.95, 0.93, 0.88], //银
            ];

            var num = 8;
            for(var i = 0;i < num; i ++){
                for(var j = 0;j < num;j ++){
                    var x = i - num*.5;
                    var y = j - num*.5;
               