public override object Clone()
{
var quantityTheme = new QuantityTheme(AttributeName, defaultStyle);
foreach (QuantityThemeItem quantityThemeItem in ThemeItems)
{
quantityTheme.ThemeItems.Add((QuantityThemeItem)quantityThemeItem.Clone());
}
if (NoDataValues != null)
{
quantityTheme.NoDataValues = NoDataValues.Cast <object>().ToArray();
}
return(quantityTheme);
}
public static QuantityTheme CreateQuantityTheme(string attribute, VectorStyle defaultStyle, ColorBlend blend,
int numberOfClasses, IList <Interval> intervals, float minSize, float maxSize, bool skipColors, bool skipSizes)
{
if (defaultStyle == null)
{
defaultStyle = new VectorStyle();
defaultStyle.GeometryType = typeof(IPolygon);
}
var quantityTheme = new QuantityTheme(attribute, defaultStyle);
var totalMinValue = (float)intervals[0].Min;
var totalMaxValue = (float)intervals[intervals.Count - 1].Max;
if (totalMinValue == totalMaxValue)
{
return(null);
}
for (int i = 0; i < numberOfClasses; i++)
{
Color color = numberOfClasses > 1
? blend.GetColor(1 - (float)i / (numberOfClasses - 1))
: ((SolidBrush)defaultStyle.Fill).Color;
float size = defaultStyle.Line.Width;
if (!skipSizes)
{
var minValue = (float)intervals[i].Min;
var maxValue = (float)intervals[i].Max;
float width = maxValue - minValue;
float mean = minValue + 0.5f * width;
float fraction = (mean - totalMinValue) / (totalMaxValue - totalMinValue);
size = minSize + fraction * (maxSize - minSize);
}
var vectorStyle = new VectorStyle
{
GeometryType = defaultStyle.GeometryType
};
if (defaultStyle.GeometryType == typeof(IPoint))
{
if (skipColors)
{
color = ((SolidBrush)defaultStyle.Fill).Color;
}
vectorStyle.Fill = new SolidBrush(color);
vectorStyle.Shape = defaultStyle.Shape;
if (!skipSizes)
{
vectorStyle.ShapeSize = Convert.ToInt32(size);
vectorStyle.Line.Width = size;
}
}
else if ((defaultStyle.GeometryType == typeof(IPolygon)) || (defaultStyle.GeometryType == typeof(IMultiPolygon)))
{
if (skipColors)
{
color = ((SolidBrush)defaultStyle.Fill).Color;
}
vectorStyle.Fill = new SolidBrush(color);
vectorStyle.Line = CreatePen(color, size, defaultStyle.Line);
vectorStyle.Outline.Width = (defaultStyle.Outline.Width - defaultStyle.Line.Width) + size;
}
else if ((defaultStyle.GeometryType == typeof(ILineString)) || (defaultStyle.GeometryType == typeof(IMultiLineString)))
{
if (skipColors)
{
color = defaultStyle.Line.Color;
}
vectorStyle.Line = CreatePen(color, size, defaultStyle.Line);
vectorStyle.Outline.Width = (defaultStyle.Outline.Width - defaultStyle.Line.Width) + size;
}
else
{
vectorStyle.Fill = new SolidBrush(color);
}
quantityTheme.AddStyle(vectorStyle, intervals[i]);
}
return(quantityTheme);
}
