Using Dew Math for .NET routines is a peace of cake. Now you can perform complex numeric tasks with only few function calls.
- Create new project with C# desktop and .NET Framework.
- Right click the solution and select "Manage NuGet Packages for the Solution".
- Search for "Dew Lab Studio" on the public Nuget.org repository and install.
- Add a TChart and a Button controls on the form.
- Add new fast line series to TChart (right-click on the TChart, then select "Edit" menu item, then click on the "Add Series" button.
- In code section, add the following assemblies to the using section: Dew.Math, Dew.Math.Units, Dew.Math.Tee, Dew.Math.Editors, Insert the following code:
private void button1_Click(object sender, System.EventArgs e) {
Vector x = new Vector(0);
Vector y = new Vector(0);
Vector spec = new Vector(0);
// Please include the full path of the file.
// The file is included with the MtxVec BasicDemo
//from https://github.com/Dew-Research/DewLabStudio-NETFramework-Samples
// distribution and has 8000 values only.
y.LoadFromFile(@"C:MtxVecDemoFFTData.vec");
//Alternative:
//y.CopyFromArray(YourArrayOfdoubles);
y.Resize(1024,false);
x.FFT(y,false);
spec.Mag(x);
MtxVecTee.DrawValues(spec,fastLine1,0,1,false);
}
.\YourSolution\Packages\Dew.Math.x.y.z\runtimes
to corresponding folders:
C:\Windows\System32 for x64 bit
C:\Windows\SysWOW64 for x32 bit
- F5 to compile and run, press Button1.
- should be looking at the frequency spectra displaying one series of harmonics.
Things to try:
- Change the 1024 value to some other values that are power of two. (512 or 2048).
- Use Steema.TeeChart.Styles.Area chart style.
- Make the spectra logarithmic in the amplitude (use the Log10 method).
- Save spectra to a file, then load it and draw to the chart with DrawValues.
- Replace MtxVecTee.DrawValues(spec,Series1) with MtxVecEdit.ViewValues(spec) and then try MtxVecEdit.ViewValues(x). Play with the menu options in the displayed form.
