public GetColor ( float pos ) : |
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pos | float | Position on scale between 0.0f and 1.0f |
리턴 |
/// <summary> /// Calculates the style for the gradient Theme. Use the constructor when all values are known because /// it will also update the symbol (bitmap). /// </summary> /// <param name="min"></param> /// <param name="max"></param> /// <param name="value"></param> /// <returns></returns> protected VectorStyle CalculateVectorStyle(VectorStyle min, VectorStyle max, double value) { //var style = new VectorStyle(); double dFrac = Fraction(value); float fFrac = Convert.ToSingle(dFrac); //bool enabled = (dFrac > 0.5 ? min.Enabled : max.Enabled); bool enableOutline = (dFrac > 0.5 ? min.EnableOutline : max.EnableOutline); Brush fillStyle = null; if (fillColorBlend != null) { fillStyle = new SolidBrush(fillColorBlend.GetColor(fFrac)); } else if (min.Fill != null && max.Fill != null) { fillStyle = InterpolateBrush(min.Fill, max.Fill, value); } Pen lineStyle; if (lineColorBlend != null) { lineStyle = new Pen(lineColorBlend.GetColor(fFrac), InterpolateFloat(min.Line.Width, max.Line.Width, value)); } else { lineStyle = InterpolatePen(min.Line, max.Line, value); } // assume line and outline same for gradient theme Pen outLineStyle = null; if (min.Outline != null && max.Outline != null) { outLineStyle = InterpolatePen(min.Outline, max.Outline, value); } ShapeType shapeType = min.Shape; float symbolScale = InterpolateFloat(min.SymbolScale, max.SymbolScale, value); Type geometryType = min.GeometryType; int shapeSize = InterpolateInt(min.ShapeSize, max.ShapeSize, value); var style = new VectorStyle(fillStyle, outLineStyle, enableOutline, lineStyle, symbolScale, geometryType, shapeType, shapeSize) { MinVisible = InterpolateDouble(min.MinVisible, max.MinVisible, value), MaxVisible = InterpolateDouble(min.MaxVisible, max.MaxVisible, value), Enabled = (dFrac > 0.5 ? min.Enabled : max.Enabled) }; return(style); }
/// <summary> /// Creates a <see cref="GradientTheme"/> /// </summary> /// <param name="attribute">Name of the feature attribute</param> /// <param name="defaultStyle">Default <see cref="VectorStyle"/> to base this theme on</param> /// <param name="blend"><see cref="ColorBlend"/> /// defining the min and max colors /// Note: Silently assumes 2 Colors defined /// </param> /// <param name="minValue">Minimum value of the feature attribute values</param> /// <param name="maxValue">Maximum value of the feature attribute values</param> /// <param name="sizeMin">Minimum line/point size in pixels</param> /// <param name="sizeMax">Maximum line/point size in pixels</param> /// <param name="skipColors">Use the min and max colors (false) or the defaultStyle fill color (true)</param> /// <param name="skipSizes">Let the size of a point depend on the value (false) or use the defaultStyle size (true)</param> /// <param name="numberOfClasses">The number of classes (ThemeItems) to generate (default = 8)</param> /// <returns>A new <see cref="GradientTheme"/></returns> public static GradientTheme CreateGradientTheme(string attribute, VectorStyle defaultStyle, ColorBlend blend, double minValue, double maxValue, int sizeMin, int sizeMax, bool skipColors, bool skipSizes, int numberOfClasses = 8) { if (defaultStyle == null) { defaultStyle = new VectorStyle { GeometryType = typeof(IPolygon) }; } Color minColor = (skipColors) ? ((SolidBrush)defaultStyle.Fill).Color : blend.GetColor(0); Color maxColor = (skipColors) ? ((SolidBrush)defaultStyle.Fill).Color : blend.GetColor(1); var deltaWidth = (defaultStyle.Outline.Width - defaultStyle.Line.Width); float minOutlineSize = deltaWidth + sizeMin; float maxOutlineSize = deltaWidth + sizeMax; // Use default styles if not working with VectorLayers (i.e. RegularGridCoverageLayers) var minStyle = (VectorStyle)defaultStyle.Clone(); var maxStyle = (VectorStyle)defaultStyle.Clone(); minStyle.GeometryType = defaultStyle.GeometryType; maxStyle.GeometryType = defaultStyle.GeometryType; if (defaultStyle.GeometryType == typeof(IPoint)) { UpdateMinMaxForPoints(defaultStyle, sizeMin, sizeMax, minStyle, maxStyle, minColor, maxColor, skipSizes); } else if ((defaultStyle.GeometryType == typeof(IPolygon)) || (defaultStyle.GeometryType == typeof(IMultiPolygon))) { UpdateMinMaxForPolygons(defaultStyle, minStyle, maxStyle, minColor, maxColor, minOutlineSize, maxOutlineSize); } else if ((defaultStyle.GeometryType == typeof(ILineString)) || (defaultStyle.GeometryType == typeof(IMultiLineString))) { UpdateMinMaxForLineStrings(defaultStyle, sizeMin, sizeMax, minStyle, maxStyle, minColor, maxColor, minOutlineSize, maxOutlineSize, skipSizes); } else { //use for unknown geometry.. minStyle.Fill = new SolidBrush(minColor); maxStyle.Fill = new SolidBrush(maxColor); minStyle.Outline = CreatePen(minColor, minOutlineSize, defaultStyle.Outline); maxStyle.Outline = CreatePen(maxColor, maxOutlineSize, defaultStyle.Outline); } return(new GradientTheme(attribute, minValue, maxValue, minStyle, maxStyle, blend, blend, null, numberOfClasses)); }
/// <summary> /// Creates a <see cref="GradientTheme"/> /// </summary> /// <param name="attribute">Name of the feature attribute</param> /// <param name="defaultStyle">Default <see cref="VectorStyle"/> to base this theme on</param> /// <param name="blend"><see cref="ColorBlend"/> /// defining the min and max colors /// Note: Silently assumes 2 Colors defined /// </param> /// <param name="minValue">Minimum value of the feature attribute values</param> /// <param name="maxValue">Maximum value of the feature attribute values</param> /// <param name="sizeMin">Minimum line/point size in pixels</param> /// <param name="sizeMax">Maximum line/point size in pixels</param> /// <param name="skipColors">Use the min and max colors (false) or the defaultStyle fill color (true)</param> /// <param name="skipSizes">Let the size of a point depend on the value (false) or use the defaultStyle size (true)</param> /// <param name="numberOfClasses">The number of classes (ThemeItems) to generate (default = 8)</param> /// <returns>A new <see cref="GradientTheme"/></returns> public static GradientTheme CreateGradientTheme(string attribute, VectorStyle defaultStyle, ColorBlend blend, double minValue, double maxValue, int sizeMin, int sizeMax, bool skipColors, bool skipSizes, int numberOfClasses = 8) { if (defaultStyle == null) { defaultStyle = new VectorStyle { GeometryType = typeof(IPolygon) }; } Color minColor = (skipColors) ? ((SolidBrush)defaultStyle.Fill).Color : blend.GetColor(0); Color maxColor = (skipColors) ? ((SolidBrush)defaultStyle.Fill).Color : blend.GetColor(1); var deltaWidth = (defaultStyle.Outline.Width - defaultStyle.Line.Width); float minOutlineSize = deltaWidth + sizeMin; float maxOutlineSize = deltaWidth + sizeMax; // Use default styles if not working with VectorLayers (i.e. RegularGridCoverageLayers) var minStyle = (VectorStyle)defaultStyle.Clone(); var maxStyle = (VectorStyle)defaultStyle.Clone(); minStyle.GeometryType = defaultStyle.GeometryType; maxStyle.GeometryType = defaultStyle.GeometryType; if (defaultStyle.GeometryType == typeof(IPoint)) { UpdateMinMaxForPoints(defaultStyle, sizeMin, sizeMax, minStyle, maxStyle, minColor, maxColor, skipSizes); } else if ((defaultStyle.GeometryType == typeof(IPolygon)) || (defaultStyle.GeometryType == typeof(IMultiPolygon))) { UpdateMinMaxForPolygons(defaultStyle, minStyle, maxStyle, minColor, maxColor, minOutlineSize, maxOutlineSize); } else if ((defaultStyle.GeometryType == typeof(ILineString)) || (defaultStyle.GeometryType == typeof(IMultiLineString))) { UpdateMinMaxForLineStrings(defaultStyle, sizeMin, sizeMax, minStyle, maxStyle, minColor, maxColor, minOutlineSize, maxOutlineSize, skipSizes); } else { //use for unknown geometry.. minStyle.Fill = new SolidBrush(minColor); maxStyle.Fill = new SolidBrush(maxColor); minStyle.Outline = CreatePen(minColor, minOutlineSize, defaultStyle.Outline); maxStyle.Outline = CreatePen(maxColor, maxOutlineSize, defaultStyle.Outline); } return new GradientTheme(attribute, minValue, maxValue, minStyle, maxStyle, blend, blend, null, numberOfClasses); }
public static CategorialTheme CreateCategorialTheme(string attribute, VectorStyle defaultStyle, ColorBlend blend, int numberOfClasses, IList <IComparable> values, List <string> categories, int sizeMin, int sizeMax) { if (defaultStyle == null) { defaultStyle = new VectorStyle { GeometryType = typeof(IPolygon) }; } var categorialTheme = new CategorialTheme(attribute, defaultStyle); for (int i = 0; i < numberOfClasses; i++) { string label = (categories != null) ? categories[i] : values[i].ToString(); Color color = (numberOfClasses > 1) ? blend.GetColor((float)i / (numberOfClasses - 1)) : ((SolidBrush)defaultStyle.Fill).Color; var vectorStyle = (VectorStyle)defaultStyle.Clone(); var size = sizeMin + (sizeMax - sizeMin) * i / (float)numberOfClasses; if (defaultStyle.GeometryType == typeof(IPoint)) { vectorStyle.Fill = new SolidBrush(color); vectorStyle.Line.Width = 16; vectorStyle.Shape = defaultStyle.Shape; } else if ((defaultStyle.GeometryType == typeof(IPolygon)) || (defaultStyle.GeometryType == typeof(IMultiPolygon))) { vectorStyle.Fill = new SolidBrush(color); } else if ((defaultStyle.GeometryType == typeof(ILineString)) || (defaultStyle.GeometryType == typeof(IMultiLineString))) { vectorStyle.Line = CreatePen(color, size, defaultStyle.Line); } else { vectorStyle.Fill = new SolidBrush(color); } CategorialThemeItem categorialThemeItem = (values[i] != null) ? new CategorialThemeItem(label, vectorStyle, vectorStyle.LegendSymbol, values[i]) : new CategorialThemeItem(label, vectorStyle, vectorStyle.LegendSymbol); categorialTheme.AddThemeItem(categorialThemeItem); } return(categorialTheme); }
/// <summary> /// Function to compute a new <see cref="VectorStyle">style</see> for the given <paramref name="value"/> /// </summary> /// <param name="min">The minimum <see cref="VectorStyle">style</see></param> /// <param name="max">The maximum <see cref="VectorStyle">style</see></param> /// <param name="value">The value</param> /// <returns>A <see cref="VectorStyle">style</see></returns> protected VectorStyle CalculateVectorStyle(VectorStyle min, VectorStyle max, double value) { var style = new VectorStyle(); double dFrac = Fraction(value); float fFrac = Convert.ToSingle(dFrac); style.Enabled = (dFrac > 0.5 ? min.Enabled : max.Enabled); style.EnableOutline = (dFrac > 0.5 ? min.EnableOutline : max.EnableOutline); style.VisibilityUnits = min.VisibilityUnits; if (_fillColorBlend != null) { style.Fill = new SolidBrush(_fillColorBlend.GetColor(fFrac)); } else if (min.Fill != null && max.Fill != null) { style.Fill = InterpolateBrush(min.Fill, max.Fill, value); } if (min.Line != null && max.Line != null) { style.Line = InterpolatePen(min.Line, max.Line, value); } if (_lineColorBlend != null) { style.Line.Color = _lineColorBlend.GetColor(fFrac); } if (min.Outline != null && max.Outline != null) { style.Outline = InterpolatePen(min.Outline, max.Outline, value); } style.MinVisible = InterpolateDouble(min.MinVisible, max.MinVisible, value); style.MaxVisible = InterpolateDouble(min.MaxVisible, max.MaxVisible, value); style.Symbol = (dFrac > 0.5 ? min.Symbol : max.Symbol); style.SymbolOffset = (dFrac > 0.5 ? min.SymbolOffset : max.SymbolOffset); //We don't interpolate the offset but let it follow the symbol instead style.SymbolScale = InterpolateFloat(min.SymbolScale, max.SymbolScale, value); return(style); }
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); }
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; }
public static CategorialTheme CreateCategorialTheme(string attribute, VectorStyle defaultStyle, ColorBlend blend, int numberOfClasses, IList<IComparable> values, List<string> categories, int sizeMin, int sizeMax) { if (defaultStyle == null) { defaultStyle = new VectorStyle { GeometryType = typeof (IPolygon) }; } var categorialTheme = new CategorialTheme(attribute, defaultStyle); for (int i = 0; i < numberOfClasses; i++) { string label = (categories != null) ? categories[i] : values[i].ToString(); Color color = (numberOfClasses > 1) ? blend.GetColor((float) i/(numberOfClasses - 1)) : ((SolidBrush) defaultStyle.Fill).Color; var vectorStyle = (VectorStyle) defaultStyle.Clone(); var size = sizeMin + (sizeMax - sizeMin)*i/(float) numberOfClasses; if (defaultStyle.GeometryType == typeof(IPoint)) { vectorStyle.Fill = new SolidBrush(color); vectorStyle.Line.Width = 16; vectorStyle.Shape = defaultStyle.Shape; } else if ((defaultStyle.GeometryType == typeof(IPolygon)) || (defaultStyle.GeometryType == typeof(IMultiPolygon))) { vectorStyle.Fill = new SolidBrush(color); } else if ((defaultStyle.GeometryType == typeof(ILineString)) || (defaultStyle.GeometryType == typeof(IMultiLineString))) { vectorStyle.Line = CreatePen(color, size, defaultStyle.Line); } else { vectorStyle.Fill = new SolidBrush(color); } CategorialThemeItem categorialThemeItem = (values[i] != null) ? new CategorialThemeItem(label, vectorStyle, vectorStyle.LegendSymbol, values[i]) : new CategorialThemeItem(label, vectorStyle, vectorStyle.LegendSymbol); categorialTheme.AddThemeItem(categorialThemeItem); } return categorialTheme; }
/// <summary> /// Calculates the style for the gradient Theme. Use the constructor when all values are known because /// it will also update the symbol (bitmap). /// </summary> /// <param name="value"></param> /// <returns></returns> protected VectorStyle CalculateVectorStyle(double value) { var min = (VectorStyle)MinStyle; var max = (VectorStyle)MaxStyle; double dFrac = Fraction(value); //There are some theoretical issues with this caching if the number of color transitions is high //(and non-smooth). However, for all intents and purposes this approach will be visually equal //to non-cached styling. const int numberOfCachedStyles = 512; int cacheIndex = (int)(dFrac * numberOfCachedStyles); if (vectorStyleCache.ContainsKey(cacheIndex)) { return(vectorStyleCache[cacheIndex]); } float fFrac = Convert.ToSingle(dFrac); //bool enabled = (dFrac > 0.5 ? min.Enabled : max.Enabled); bool enableOutline = (dFrac > 0.5 ? min.EnableOutline : max.EnableOutline); Brush fillStyle = null; if (fillColorBlend != null) { fillStyle = new SolidBrush(fillColorBlend.GetColor(fFrac)); } else if (min.Fill != null && max.Fill != null) { fillStyle = InterpolateBrush(min.Fill, max.Fill, value); } Pen lineStyle; if (lineColorBlend != null) { lineStyle = new Pen(lineColorBlend.GetColor(fFrac), InterpolateFloat(min.Line.Width, max.Line.Width, value)); } else { lineStyle = InterpolatePen(min.Line, max.Line, value); } // assume line and outline same for gradient theme Pen outLineStyle = null; if (min.Outline != null && max.Outline != null) { outLineStyle = InterpolatePen(min.Outline, max.Outline, value); } ShapeType shapeType = min.Shape; float symbolScale = InterpolateFloat(min.SymbolScale, max.SymbolScale, value); Type geometryType = min.GeometryType; int shapeSize = InterpolateInt(min.ShapeSize, max.ShapeSize, value); var style = new VectorStyle(fillStyle, outLineStyle, enableOutline, lineStyle, symbolScale, geometryType, shapeType, shapeSize) { MinVisible = InterpolateDouble(min.MinVisible, max.MinVisible, value), MaxVisible = InterpolateDouble(min.MaxVisible, max.MaxVisible, value), Enabled = (dFrac > 0.5 ? min.Enabled : max.Enabled), Line = { StartCap = min.Line.StartCap, EndCap = min.Line.EndCap } }; vectorStyleCache[cacheIndex] = style; return(style); }
public static GradientTheme CreateGradientTheme(string attribute, VectorStyle defaultStyle, ColorBlend blend, float minValue, float maxValue, int sizeMin, int sizeMax, bool skipColors, bool skipSizes, int numberOfClasses) { if (defaultStyle == null) { defaultStyle = new VectorStyle(); defaultStyle.GeometryType = typeof(IPolygon); } Color minColor = (skipColors)? ((SolidBrush)defaultStyle.Fill).Color : blend.GetColor(0); Color maxColor = (skipColors) ? ((SolidBrush)defaultStyle.Fill).Color : blend.GetColor(1); var deltaWith = (defaultStyle.Outline.Width - defaultStyle.Line.Width); float minOutlineSize = deltaWith + sizeMin; float maxOutlineSize = deltaWith + sizeMax; // Use default styles if not working with VectorLayers (i.e. RegularGridCoverageLayers) var minStyle = (VectorStyle)defaultStyle.Clone(); var maxStyle = (VectorStyle)defaultStyle.Clone(); minStyle.GeometryType = defaultStyle.GeometryType; maxStyle.GeometryType = defaultStyle.GeometryType; if (defaultStyle.GeometryType == typeof(IPoint)) { minStyle.Fill = new SolidBrush(minColor); maxStyle.Fill = new SolidBrush(maxColor); minStyle.Shape = defaultStyle.Shape; maxStyle.Shape = defaultStyle.Shape; if (!skipSizes) { minStyle.Line.Width = sizeMin; maxStyle.Line.Width = sizeMax; minStyle.ShapeSize = sizeMin; maxStyle.ShapeSize = sizeMax; } } else if ((defaultStyle.GeometryType == typeof(IPolygon)) || (defaultStyle.GeometryType == typeof(IMultiPolygon))) { minStyle.Fill = new SolidBrush(minColor); maxStyle.Fill = new SolidBrush(maxColor); minStyle.Outline = new Pen(defaultStyle.Outline.Color, minOutlineSize); maxStyle.Outline = new Pen(defaultStyle.Outline.Color, maxOutlineSize); } else if ((defaultStyle.GeometryType == typeof(ILineString)) || (defaultStyle.GeometryType == typeof(IMultiLineString))) { minStyle.Line = new Pen(minColor, sizeMin); maxStyle.Line = new Pen(maxColor, sizeMax); minStyle.Outline = new Pen(defaultStyle.Outline.Color, minOutlineSize); maxStyle.Outline = new Pen(defaultStyle.Outline.Color, maxOutlineSize); } else { minStyle.Fill = new SolidBrush(minColor); maxStyle.Fill = new SolidBrush(maxColor); minStyle.Outline = new Pen(minColor, minOutlineSize); maxStyle.Outline = new Pen(maxColor, maxOutlineSize); } var gradientTheme = new GradientTheme(attribute, minValue, maxValue, minStyle, maxStyle, blend, blend, null, numberOfClasses); return(gradientTheme); }
public static GradientTheme CreateGradientTheme(string attribute, VectorStyle defaultStyle, ColorBlend blend, float minValue, float maxValue, int sizeMin, int sizeMax, bool skipColors, bool skipSizes, int numberOfClasses) { if(defaultStyle == null) { defaultStyle = new VectorStyle(); defaultStyle.GeometryType = typeof(IPolygon); } Color minColor = (skipColors)? ((SolidBrush) defaultStyle.Fill).Color : blend.GetColor(0); Color maxColor = (skipColors) ? ((SolidBrush)defaultStyle.Fill).Color : blend.GetColor(1); var deltaWith = (defaultStyle.Outline.Width - defaultStyle.Line.Width); float minOutlineSize = deltaWith + sizeMin; float maxOutlineSize = deltaWith + sizeMax; // Use default styles if not working with VectorLayers (i.e. RegularGridCoverageLayers) var minStyle = (VectorStyle) defaultStyle.Clone(); var maxStyle = (VectorStyle) defaultStyle.Clone(); minStyle.GeometryType = defaultStyle.GeometryType; maxStyle.GeometryType = defaultStyle.GeometryType; if (defaultStyle.GeometryType == typeof(IPoint)) { minStyle.Fill = new SolidBrush(minColor); maxStyle.Fill = new SolidBrush(maxColor); minStyle.Shape = defaultStyle.Shape; maxStyle.Shape = defaultStyle.Shape; if (!skipSizes) { minStyle.Line.Width = sizeMin; maxStyle.Line.Width = sizeMax; minStyle.ShapeSize = sizeMin; maxStyle.ShapeSize = sizeMax; } } else if ((defaultStyle.GeometryType == typeof(IPolygon)) || (defaultStyle.GeometryType == typeof(IMultiPolygon))) { minStyle.Fill = new SolidBrush(minColor); maxStyle.Fill = new SolidBrush(maxColor); minStyle.Outline = new Pen(defaultStyle.Outline.Color, minOutlineSize); maxStyle.Outline = new Pen(defaultStyle.Outline.Color, maxOutlineSize); } else if ((defaultStyle.GeometryType == typeof(ILineString)) || (defaultStyle.GeometryType == typeof(IMultiLineString))) { minStyle.Line = new Pen(minColor, sizeMin); maxStyle.Line = new Pen(maxColor, sizeMax); minStyle.Outline = new Pen(defaultStyle.Outline.Color, minOutlineSize); maxStyle.Outline = new Pen(defaultStyle.Outline.Color, maxOutlineSize); } else { minStyle.Fill = new SolidBrush(minColor); maxStyle.Fill = new SolidBrush(maxColor); minStyle.Outline = new Pen(minColor, minOutlineSize); maxStyle.Outline = new Pen(maxColor, maxOutlineSize); } var gradientTheme = new GradientTheme(attribute, minValue, maxValue, minStyle, maxStyle, blend, blend, null, numberOfClasses); return gradientTheme; }