/// <summary>
/// This is cut down version of the method of same name in LDSpectrogramRGB.cs.
/// </summary>
/// <param name="ldSpectrogramConfig">config for ldfc spectrogram.</param>
/// <param name="outputDirectory">outputDirectory.</param>
/// <param name="indexGenerationData">indexGenerationData.</param>
/// <param name="basename">stem name of the original recording.</param>
/// <param name="indexSpectrograms">Optional spectra to pass in. If specified the spectra will not be loaded from disk!.</param>
private static string DrawSpectrogramsFromSpectralIndices(
LdSpectrogramConfig ldSpectrogramConfig,
DirectoryInfo outputDirectory,
IndexGenerationData indexGenerationData,
string basename,
Dictionary <string, double[, ]> indexSpectrograms = null)
{
string colorMap1 = ldSpectrogramConfig.ColorMap1; // SpectrogramConstants.RGBMap_ACI_ENT_EVN;
string colorMap2 = ldSpectrogramConfig.ColorMap2; // SpectrogramConstants.RGBMap_BGN_PMN_OSC;
double blueEnhanceParameter = ldSpectrogramConfig.BlueEnhanceParameter.Value;
var cs1 = new LDSpectrogramRGB(ldSpectrogramConfig, indexGenerationData, colorMap1);
string fileStem = basename;
cs1.FileName = fileStem;
// calculate start time by combining DatetimeOffset with minute offset.
cs1.StartOffset = indexGenerationData.AnalysisStartOffset;
if (indexGenerationData.RecordingStartDate.HasValue)
{
DateTimeOffset dto = (DateTimeOffset)indexGenerationData.RecordingStartDate;
cs1.RecordingStartDate = dto;
if (dto != null)
{
cs1.StartOffset = dto.TimeOfDay + cs1.StartOffset;
}
}
var indexProperties = IndexCalculateSixOnly.GetIndexProperties();
cs1.SetSpectralIndexProperties(indexProperties);
// Load the Index Spectrograms into a Dictionary
cs1.LoadSpectrogramDictionary(indexSpectrograms);
if (cs1.GetCountOfSpectrogramMatrices() == 0)
{
Log.Error("No spectrogram matrices in the dictionary. Spectrogram files do not exist?");
throw new InvalidOperationException("Cannot find spectrogram matrix files");
}
// draw all available gray scale index spectrograms.
var keys = indexProperties.Keys.ToArray();
cs1.DrawGreyScaleSpectrograms(outputDirectory, fileStem, keys);
// create two false-color spectrogram images
var image1NoChrome = cs1.DrawFalseColorSpectrogramChromeless(cs1.ColorMode, colorMap1, blueEnhanceParameter);
var image2NoChrome = cs1.DrawFalseColorSpectrogramChromeless(cs1.ColorMode, colorMap2, blueEnhanceParameter);
var spacer = new Image <Rgb24>(image1NoChrome.Width, 10);
var imageList = new[] { image1NoChrome, spacer, image2NoChrome, spacer };
Image image3 = ImageTools.CombineImagesVertically(imageList);
var outputPath = FilenameHelpers.AnalysisResultPath(outputDirectory, fileStem, "2Maps", "png");
image3.Save(outputPath);
return(outputPath);
}