/// <summary>
/// Reads new preset, updating color and opacity function from it.
/// </summary>
/// <param name="presetName">Name of choosen preset.</param>
public void ChangeColorAndOpacityFunction(string presetName)
{
vtkColorTransferFunction ctf = vtkColorTransferFunction.New();
vtkPiecewiseFunction spwf = vtkPiecewiseFunction.New();
PresetInfo = PresetReader.ReadXmlFile(presetName);
_chart.Series["OpacityFunction"].Points.Clear();
_chart.Series["OpacityFunctionSpline"].Points.Clear();
foreach (var pair in PresetInfo.Series[0].OpacityFunction)
{
spwf.AddPoint(pair.Key, pair.Value);
_chart.Series["OpacityFunction"].Points.AddXY(pair.Key, pair.Value);
_chart.Series["OpacityFunctionSpline"].Points.AddXY(pair.Key, pair.Value);
}
foreach (var pair in PresetInfo.Series[0].ColorFuction)
{
ctf.AddRGBSegment(pair.Key, pair.Value[0].R, pair.Value[0].G, pair.Value[0].B,
pair.Key, pair.Value[1].R, pair.Value[1].G, pair.Value[1].B);
//Color colorRight = Color.FromArgb((int)pair.Value[1].R, (int)pair.Value[1].G, (int)pair.Value[1].B);
//Color colorLeft = Color.FromArgb((int)pair.Value[0].R, (int)pair.Value[0].G, (int)pair.Value[0].B);
}
ctf.SetScaleToLinear();
_volume.GetProperty().SetColor(ctf);
_volume.GetProperty().SetScalarOpacity(spwf);
_currentSerieNumber = 0;
}
void ReloadPresets(string defaultPresetName)
{
presetComboBox.Items.Clear();
presetComboBox.Items.Add(blankPreset);
Preset defaultPreset = blankPreset;
defaultPresetName = defaultPresetName.ToLower();
string[] presetFiles = PresetManager.GetPresetFiles();
foreach (string presetFile in presetFiles)
{
try
{
Preset preset = PresetReader.LoadPreset(presetFile);
presetComboBox.Items.Add(preset);
if (preset.Name.ToLower() == defaultPresetName)
{
defaultPreset = preset;
}
}
catch (Exception ex)
{
MessageBox.Show(string.Format("{0} is not a valid preset file:\n{1}", presetFile, ex.Message), null, MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
presetComboBox.SelectedItem = defaultPreset;
}
static Preset GetPreset(IDictionary <string, string> options)
{
try
{
string presetName = "Default.xml";
if (options.ContainsKey("preset"))
{
presetName = options["preset"];
if (string.IsNullOrEmpty(Path.GetExtension(presetName)))
{
presetName = string.Format("{0}.xml", presetName);
}
}
return(PresetReader.LoadPreset(presetName));
}
catch (Exception ex)
{
throw new LetsTagException("Could not load preset", ex);
}
}
