使用变化的频率和面板分量绘制的简单正弦图. [英] Plot of simple sine graph, using varying frequency and panel component.

问题描述

朋友您好，我是巴西人，如果我的英语有问题，抱歉.我有一个非常基本的问题. ``在C#中的Inciante，我想知道一种绘制正弦图的简单方法，其中可以通过数字上下框来改变图的频率.我正在使用面板执行此任务.谢谢！我要联系的电子邮件为[已删除].

提示

克里斯蒂安诺·德·卡里(Christiano De Carli)
巴西南部-巴西

Hello Friends, I am Brazilian, sorry if my english has some error. I have a very basic question. ''m Inciante in C #, I would like to know a simple way to plot a graph of sine where through a numeric up down box, I can vary the frequency of the graph. I''m using a panel for this task. Thank you! My email to contact is .

Att

Christiano De Carli
Caxias do Sul - Brazil

推荐答案

您可以在此简单函数中使用向上下拉框设置变量，以生成所需频率和采样率的正弦波.

You can use your up down box to set the variables in this simple function to generate a sine wave of the desired frequency and sample rate.

class SineGen
{
    public double phaseCnt = 0;     // Sample location in sine wave
    public double sampleRate = 300; // Number samples in one second
    public double freq = 10000;     // Desired frequency, Default set to 10Khz

    /* Simple Sine Wave Generator
     * Make a call to this function for every point
     * in the wave form.
     */
    public double sineWave()
    {
        double result = Math.Sin(freq * (2 * Math.PI) * (phaseCnt) / sampleRate);
        phaseCnt++;
        if (phaseCnt > sampleRate) phaseCnt = 0;
        return result;
    }
}

在循环或计时器事件中，可以使用以下代码行填充图表控件.

Within the loop or timer event you can populate a chart control using following lines of code.

mySineWave = _SineGen.sineWave();
this.chart1.Series["SineWave"].Points.AddXY(_SineGen.phaseeCnt, mySineWave);

有关图表控件的更多信息，请参见此处: ASP.NET 4.0图表控件 [ ^ ]

祝你好运.

For more on chart controls see here: ASP.NET 4.0 Chart Control[^]

Good luck.

查看以下内容: .NET的灵活图表库 [ ^ ]

Check this out: A flexible charting library for .NET[^]

这篇关于使用变化的频率和面板分量绘制的简单正弦图.的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！