/// <summary>
/// This method assumes that the height of the passed sonogram image is half of the original frame size.
/// This assumption allows the frequency scale grid lines to be placed at the correct intervals.
/// </summary>
public static Image FrameSonogram(
Image sonogramImage,
Image titleBar,
TimeSpan minuteOffset,
TimeSpan xAxisTicInterval,
TimeSpan xAxisPixelDuration,
TimeSpan labelInterval,
int nyquist,
int hertzInterval)
{
double secondsDuration = xAxisPixelDuration.TotalSeconds * sonogramImage.Width;
var fullDuration = TimeSpan.FromSeconds(secondsDuration);
// init frequency scale
int frameSize = sonogramImage.Height * 2;
var freqScale = new FrequencyScale(nyquist, frameSize, hertzInterval);
SpectrogramTools.DrawGridLinesOnImage((Bitmap)sonogramImage, minuteOffset, fullDuration, xAxisTicInterval, freqScale);
int imageWidth = sonogramImage.Width;
var timeBmp = ImageTrack.DrawShortTimeTrack(minuteOffset, xAxisPixelDuration, xAxisTicInterval, labelInterval, imageWidth, "Seconds");
Image[] imageArray = { titleBar, timeBmp, sonogramImage, timeBmp };
return(ImageTools.CombineImagesVertically(imageArray));
}
/// <summary>
/// This method draws only top and bottom time scales and adds the title bar.
/// It does NOT include the frequency grid lines.
/// </summary>
public static Image <Rgb24> FrameSonogram(
Image <Rgb24> sonogramImage,
Image <Rgb24> titleBar,
TimeSpan minuteOffset,
TimeSpan xAxisTicInterval,
TimeSpan xAxisPixelDuration,
TimeSpan labelInterval)
{
int imageWidth = sonogramImage.Width;
var timeBmp = ImageTrack.DrawShortTimeTrack(minuteOffset, xAxisPixelDuration, xAxisTicInterval, labelInterval, imageWidth, "Seconds");
return(ImageTools.CombineImagesVertically(titleBar, timeBmp, sonogramImage, timeBmp));
}