我在那里发帖是因为我在其他帖子或谷歌上找不到东西。
正如您在 JS fiddle 上看到的那样,我有一个折线图,每个点都有一个圆圈。我想用新数据更新这个图表。问题是我可以得到比我已经在图表上得到的分数更少或更多的分数。例如,我的折线图上可以有 8 个点,然后当我更新图表时,我可以只有 4 个,甚至 15 个点。而且我的圈子没有正确更新,因为我只是在更改已经存在的圈子的值。但我真的不知道如何正确更新它们。
我有时可以拥有这些数据:
var data = [
{"date":"4-May-12","close":Math.random()*568.13,"open":Math.random()*35.12},
{"date":"3-May-12","close":Math.random()*568.13,"open":Math.random()*35.12},
{"date":"2-May-12","close":Math.random()*568.13,"open":Math.random()*35.12},
{"date":"1-May-12","close":Math.random()*568.13,"open":Math.random()*35.12},
{"date":"30-Apr-12","close":Math.random()*354.98,"open":Math.random()*424.56},
{"date":"27-Apr-12","close":Math.random()*24.00,"open":Math.random()*253.89},
{"date":"26-Apr-12","close":Math.random()*490.70,"open":Math.random()*215.54},
{"date":"25-Apr-12","close":Math.random()*42.00,"open":Math.random()*351.23},
{"date":"24-Apr-12","close":Math.random()*210.28,"open":Math.random()*20.23},
{"date":"23-Apr-12","close":Math.random()*20.70,"open":Math.random()*368.34},
{"date":"20-Apr-12","close":Math.random()*412.98,"open":Math.random()*42},
{"date":"19-Apr-12","close":Math.random()*26.44,"open":Math.random()*20.56},
{"date":"18-Apr-12","close":Math.random()*48.34,"open":Math.random()*356.45},
{"date":"17-Apr-12","close":Math.random()*26.44,"open":Math.random()*20.56},
{"date":"15-Apr-12","close":Math.random()*48.34,"open":Math.random()*356.45},
];
其他时候只是这些数据:(或多或少)
var data = [
{"date":"4-May-12","close":Math.random()*568.13,"open":Math.random()*35.12},
{"date":"3-May-12","close":Math.random()*568.13,"open":Math.random()*35.12},
{"date":"2-May-12","close":Math.random()*568.13,"open":Math.random()*35.12},
{"date":"1-May-12","close":Math.random()*568.13,"open":Math.random()*35.12},
{"date":"30-Apr-12","close":Math.random()*354.98,"open":Math.random()*424.56},
];
有人可以帮助我吗?
非常感谢 !