以时间为X轴绘制TChart [英] Plotting a TChart with time as the X-axis

问题描述

我有一系列3600个值，每个小时一个小时。我想在Delphi 7中使用TChart将它们绘制为单个系列。

I have a series of 3,600 values, one every second for an hour. I want to chart them as a single series, using TChart in Delphi 7.

这些值应在Y轴上绘制。我应该将X值传递给AddXY（）吗？点数？

The values should be plotted on the Y-axis. What should I pass to AddXY() as the X-axis value? The count of points?

我想将X轴标记为MM：SS，该怎么做？除此之外，我还需要什么？ ...

I want to label the X-axis as MM:SS, how do I do that? What do I need beyond this? ...

   Chart1.Series[0].XValues.DateTime := True;
   Chart1.BottomAxis.DateTimeFormat := 'nn:ss';

我被这个卡住了一段时间。谁能张贴一些示例代码？谢谢

I have been stuck for a while with this one. Can anyone post some sample code? Thanks

推荐答案

如果我没记错的话，这就是你想要的

If I am not wrong, this is what you want

Series1.AddXY(<Pass the data value>, <Pass Your value>, '', clRed);
Series1.AddXY(now,                     1, '', clRed); 
Series1.AddXY(now + ( 1 /(24*60*60)),  2, '', clRed); //After 1 seconds 
Series1.AddXY(now + ( 2 /(24*60*60)),  3, '', clRed);  //After 2 seconds 

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