画了一系列的图形:Line,Circle,Rectangle...... 他们之间都有点坐标,颜色,以及画它时的顺序drawIndex等数据。现在要根据序号来删除数据,怎么求给出的序号在已绘制图形中的索引?除了对每组图形都来一个for循环和递归的算法求出来,有更好的方法吗?
var removeIndex = -1, searchIndex = 0, requireRemoveIndex;
function searchRemoveIndex()
{
var graphics = [lineDatas, brokenlineDatas, curveDatas, rectDatas, polygonDatas, arrowDatas, ellipseDatas, roundRectDatas, fillRectDatas, fillEllipseDatas, fillRoundRectDatas];
if(graphics[searchIndex] && getRemoveIndex(graphics[searchIndex]) == -1)
{
searchIndex++;
searchRemoveIndex();
}
}
function getRemoveIndex(graphicsArr)
{
var graphicsArr = graphicsArr;
for(var i = 0; i < graphicsArr.length; i++)
{
if(graphicsArr[i].drawIndex == requireRemoveIndex)
{
removeIndex = graphicsArr[i].drawIndex;
graphicsArr.splice(i, 1);
return removeIndex;
}
}
return removeIndex;
}