private static Dictionary <string, Color> GetGradientDictColor(BiColorGradientTheme gradientTheme)
{
var result = new Dictionary <string, Color>();
double minValue = gradientTheme.MinValue;
double maxValue = gradientTheme.MaxValue;
double interval = (maxValue - minValue) / 5;
double leftVal = 0;
double rightVal = 0;
if (interval == 0)
{
interval = 1;
}
for (int index = 0; index <= 4; index++)
{
leftVal = minValue + interval * index;
rightVal = minValue + interval * (index + 1);
string range = string.Format(" {0}~{1}", leftVal.ToString(), rightVal.ToString());
result.Add(range, gradientTheme.GetColorByValue(minValue + index * interval));
}
return(result);
}
public override Color GetColorByValue(double value)
{
double pos = (value - MinValue) / (MaxValue - MinValue);
double[] posArr = _stops.Keys.ToArray();
if (pos < posArr.First())
{
return(_stops.First().Value);
}
else
{
for (int i = 0; i < posArr.Length - 1; i++)
{
double a = posArr[i];
double b = posArr[i + 1];
if (pos >= a && pos < b)
{
var bcgm = new BiColorGradientTheme {
MinValue = a, MaxValue = b, MinColor = _stops[a], MaxColor = _stops[b]
};
return(bcgm.GetColorByValue(pos));
}
}
return(_stops.Last().Value);
}
}
private void ComboBoxCallback(object sender, EventArgs e)
{
if (!MapControl.Current.Layers.Any(mapLayer => mapLayer.LayerData.Name == WellknownLayerNames.Parcel))
{
return;
}
var parcelLayer = MapControl.Current.Layers.First(mapLayer => mapLayer.LayerData.Name == WellknownLayerNames.Parcel);
string currentItem = _comboBox.SelectedItem as string;
IColorTheme parcelTheme = null;
if (currentItem == None)
{
_vLayout.Children.Clear();
_checkBox.Visibility = Visibility.Collapsed;
parcelTheme = null;
}
else if (currentItem == LandUse)
{
_checkBox.Visibility = Visibility.Visible;
var usageTheme = new ParcelUsageTheme();
parcelTheme = usageTheme;
_dictColor = usageTheme.DictColor;
ShowLegend();
}
else if (currentItem == FloorAreaRatio || currentItem == SiteCoverageRatio ||
currentItem == GreenRate || currentItem == BuildingHeightLimit)
{
_checkBox.Visibility = Visibility.Visible;
var gradientTheme = new BiColorGradientTheme
{
Property = currentItem,
MinValue = GetPropMinValue(parcelLayer, currentItem),
MaxValue = GetPropMaxValue(parcelLayer, currentItem)
};
parcelTheme = gradientTheme;
_dictColor = GetGradientDictColor(gradientTheme);
ShowLegend();
}
if (parcelTheme != null) // mod 20120725
{
parcelLayer.ApplyColorTheme(parcelTheme);
if (parcelTheme is IDataVisualizationTheme)
{
string prop = (parcelTheme as IDataVisualizationTheme).Property;
parcelLayer.ApplyToolTip(feature => UIHelper.TitledToolTip(title: prop, content: feature[prop]));
}
else if (parcelTheme is ParcelUsageTheme)
{
parcelLayer.ApplyToolTip(feature => UIHelper.TitledToolTip(
title: feature[WellknownPropertyNames.LandUseCode],
content: ParcelColorCfg.GetUsageByCode(feature[WellknownPropertyNames.LandUseCode])));
}
}
else
{
parcelLayer.ClearColorTheme();
parcelLayer.ApplyToolTip(feature => null);
}
}
public SimpleFluidTheme(string startProp, string endProp, BiColorGradientTheme colorTheme)
{
StartColorProperty = startProp;
EndColorProperty = endProp;
InnerColorTheme = colorTheme;
}
public SimpleFluidTheme()
{
InnerColorTheme = new BiColorGradientTheme("", 0, 1);
//InnerColorTheme.MinColor = Color.FromRgb(255, 150, 0); //Colors.Peru; //Colors.SaddleBrown;
//InnerColorTheme.MaxColor = Color.FromRgb(77, 216, 233); //Colors.Cyan;
}
