生成颜色代码的 Java程序

在网页

 http://flash.9ria.com/thread-33919-1-1.html

找到如下代码。他可以指定 开始颜色， 结束颜色， 以及 步长，函数返回一个 java 数组，数组中包含有颜色代码。

选择 开始颜色， 结束颜色时可以参见下面的 颜色代码表。

http://book.wyfwgw.com/color.htm

/*** 输入一个颜色,将它拆成三个部分:* 红色,绿色和蓝色*/public static function retrieveRGBComponent( color:uint ):Array{var r:Number = color >> 16;var g:Number = (color >> 8) & 0xff;var b:Number = color & 0xff;return [r, g, b];}/*** 红色,绿色和蓝色三色组合*/public static function generateFromRGBComponent( rgb:Array ):int{if( rgb == null || rgb.length != 3 || rgb[0] < 0 || rgb[0] > 255 ||rgb[1] < 0 || rgb[1] > 255 ||rgb[2] < 0 || rgb[2] > 255 )return 0xFFFFFF;return rgb[0] << 16 | rgb[1] << 8 | rgb[2];}/*** color1是浅色,color2是深色,实现渐变* steps是指在多大的区域中渐变,*/public static function generateTransitionalColor( color1:uint, color2:uint, steps:int):Array{if( steps < 3 )return [];var color1RGB:Array = retrieveRGBComponent( color1 );var color2RGB:Array = retrieveRGBComponent( color2 );var colors:Array = [];colors.push( color1 );steps = steps - 2;var redDiff:Number = color2RGB[0] - color1RGB[0];var greenDiff:Number = color2RGB[1] - color1RGB[1];var blueDiff:Number = color2RGB[2] - color1RGB[2];for( var i:int = 1; i < steps - 1; i++){var tmpRGB:Array = [color1RGB[0] + redDiff * i / steps,color1RGB[1] + greenDiff * i / steps,color1RGB[2] + blueDiff * i / steps];colors.push( generateFromRGBComponent( tmpRGB ) );}colors.push( color2 );return colors;}