/// <summary>
/// Runs the tool.
/// </summary>
public override bool Run(ITaskHandle task)
{
using (var grid = new GridSource(Input))
{
RasterColorScheme rcs = null;
if (UseBuiltInColorScheme)
{
rcs = grid.RetrieveColorScheme(GridSchemeRetrieval.Auto);
if (rcs == null)
{
Log.Error("No predefined color scheme was found.", null);
return(false);
}
}
else
{
rcs = grid.GenerateColorScheme(GridSchemeGeneration.Gradient, ColorScheme);
}
MapConfig.GridProxyFormat = ProxyFormat;
Output.Result = grid.CreateImageProxy(rcs);
}
return(Output.Result != null);
}
public IImageSource GridToImage2(IGridSource grid, RasterColorScheme scheme, GridProxyFormat imageFormat,
bool inRam)
{
var img = _utils.GridToImage2(grid.GetInternal(), scheme.GetInternal(), (tkGridProxyFormat)imageFormat, inRam, null);
return(BitmapSource.Wrap(img));
}
public void SetColorSchemeCore(RasterColorScheme value)
{
bool showGradient = value != null && value.ColoringType != GridColoringType.Random;
colorSchemeGrid.DataSource = null; // to avoid flicker on setting ShowGradient
colorSchemeGrid.ShowGradient = showGradient;
colorSchemeGrid.DataSource = value != null?value.ToList() : null;
}
private RasterColorScheme Classify()
{
var band = Model.Bands[View.ActiveBandIndex];
if (band == null)
{
return(null);
}
RasterColorScheme scheme = null;
double minValue = View.BandMinValue;
double maxValue = View.BandMaxValue;
switch (View.Classification)
{
case RasterClassification.EqualIntervals:
scheme = band.Classify(minValue, maxValue, Classification.EqualIntervals, View.ColorRamp.Count - 1);
break;
case RasterClassification.EqualCount:
scheme = band.Classify(minValue, maxValue, Classification.EqualCount, View.NumBreaks);
break;
case RasterClassification.UniqueValues:
scheme = band.Classify(minValue, maxValue, Classification.UniqueValues, 256);
if (scheme == null)
{
MessageService.Current.Info("To many values for unique values classification (256 is max).");
return(null);
}
break;
default:
throw new ArgumentOutOfRangeException();
}
return(scheme);
}
/// <summary>
/// Renders color scheme (rectangle and name for each break).
/// </summary>
private void RenderColorScheme(Graphics g, LegendLayer layer, Rectangle bounds, ref Rectangle r, RasterColorScheme scheme, bool gradients, bool horizontal = false)
{
var textRect = new Rectangle(
r.Left + Constants.IconWidth + 3,
r.Top,
bounds.Width - Constants.TextRightPadNoIcon - Constants.CsTextLeftIndent,
Constants.TextHeight);
if (scheme == null)
{
return;
}
// var count = 0;
foreach (var item in scheme)
{
Brush brush;
if (gradients)
{
brush = new LinearGradientBrush(r, item.LowColor, item.HighColor, horizontal ? 0.0f : 90.0f);
}
else
{
brush = new SolidBrush(item.LowColor);
}
g.FillRectangle(brush, r);
g.DrawRectangle(Pens.Gray, r);
layer.Elements.Add(LayerElementType.RasterColorBox, r);
DrawText(g, item.ToString(), textRect, Font, Color.Black);
r.Y += Constants.CsItemHeightAndPad;
textRect.Y += Constants.CsItemHeightAndPad;
// count++;
}
}
public static GridColorScheme GetInternal(this RasterColorScheme colorScheme)
{
return(colorScheme.InternalObject as GridColorScheme);
}
public Image GridToImage(IGridSource grid, RasterColorScheme scheme)
{
return(_utils.GridToImage(grid.GetInternal(), scheme.GetInternal()));
}
