IsoFieldViewer was changed
This commit is contained in:
Evgeny Redikultsev
@@ -1,5 +1,6 @@
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using FieldVisualizer.Entities.ColorMaps;
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using FieldVisualizer.Entities.Values;
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using StructureHelperCommon.Infrastructures.Exceptions;
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using System;
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using System.Collections.Generic;
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using System.Text;
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@@ -10,54 +11,123 @@ namespace FieldVisualizer.Services.ColorServices
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public static class ColorOperations
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{
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const byte Alpha = 0xff;
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public static Color GetColorByValue(IValueRange range, IColorMap map, double val)
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{
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if (range.TopValue == range.BottomValue || map.Colors.Count == 0) { return map.Colors[0]; }
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double minVal = range.BottomValue - 1e-15d*(Math.Abs(range.BottomValue));
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double maxVal = range.TopValue + 1e-15d * (Math.Abs(range.TopValue));
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if (val > maxVal || val < minVal) { return Colors.Gray; }
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if (val == minVal) { return map.Colors[0]; }
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if (val == maxVal) { return map.Colors[map.Colors.Count - 1]; }
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double valPerc = (val - minVal) / (maxVal - minVal);// value%
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if (valPerc >= 1d)
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{ return map.Colors[map.Colors.Count - 1]; }
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double colorPerc = 1d / (map.Colors.Count - 1d); // % of each block of color. the last is the "100% Color"
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double blockOfColor = valPerc / colorPerc;// the integer part repersents how many block to skip
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int blockIdx = (int)Math.Truncate(blockOfColor);// Idx of
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double valPercResidual = valPerc - (blockIdx * colorPerc);//remove the part represented of block
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double percOfColor = valPercResidual / colorPerc;// % of color of this block that will be filled
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Color cTarget = map.Colors[blockIdx];
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Color cNext = map.Colors[blockIdx + 1];
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var deltaR = cNext.R - cTarget.R;
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var deltaG = cNext.G - cTarget.G;
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var deltaB = cNext.B - cTarget.B;
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var R = cTarget.R + (deltaR * percOfColor);
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var G = cTarget.G + (deltaG * percOfColor);
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var B = cTarget.B + (deltaB * percOfColor);
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Color c = map.Colors[0];
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c = Color.FromArgb(Alpha, (byte)R, (byte)G, (byte)B);
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return c;
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}
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/// <summary>
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///
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/// </summary>
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/// <param name="fullRange"></param>
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/// <param name="valueRanges"></param>
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/// <param name="colorMap"></param>
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/// <returns></returns>
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public static IEnumerable<IValueColorRange> GetValueColorRanges(IValueRange fullRange, IEnumerable<IValueRange> valueRanges, IColorMap colorMap)
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{
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var colorRanges = new List<IValueColorRange>();
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foreach (var valueRange in valueRanges)
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{
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IValueColorRange valueColorRange = new ValueColorRange();
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valueColorRange.IsActive = true;
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valueColorRange.BottomValue = valueRange.BottomValue;
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valueColorRange.AverageValue = (valueRange.BottomValue + valueRange.TopValue) / 2;
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valueColorRange.TopValue = valueRange.TopValue;
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IValueColorRange valueColorRange = new ValueColorRange
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{
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IsActive = true,
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BottomValue = valueRange.BottomValue,
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AverageValue = (valueRange.BottomValue + valueRange.TopValue) / 2,
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TopValue = valueRange.TopValue
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};
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valueColorRange.BottomColor = GetColorByValue(fullRange, colorMap, valueColorRange.BottomValue);
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valueColorRange.TopColor = GetColorByValue(fullRange, colorMap, valueColorRange.TopValue);
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colorRanges.Add(valueColorRange);
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}
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return colorRanges;
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}
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/// <summary>
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/// Returns color by value, range of value an color map
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/// </summary>
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/// <param name="range">Range of valoue</param>
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/// <param name="map">Color map</param>
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/// <param name="val">Value</param>
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/// <returns></returns>
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public static Color GetColorByValue(IValueRange range, IColorMap map, double val)
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{
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CheckColorMap(map);
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if (range.TopValue == range.BottomValue || map.Colors.Count == 1) //if range width is zero or map contain just 1 color
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{
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return map.Colors[0];
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}
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var valueRange = GetExtendedRange(range);
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if (val >= valueRange.TopValue || val <= valueRange.BottomValue)
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{
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return GetColorValueIsOutOfRange(valueRange, map, val);
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}
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return GetColorValueIsInRange(valueRange, map, val);
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}
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private static Color GetColorValueIsOutOfRange(IValueRange range, IColorMap map, double val)
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{
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if (val > range.TopValue || val < range.BottomValue)
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{
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return Colors.Gray;
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}
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if (val == range.BottomValue)
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{
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return map.Colors[0];
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}
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if (val == range.TopValue)
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{
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return map.Colors[^1];
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}
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throw new StructureHelperException(ErrorStrings.DataIsInCorrect);
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}
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private static Color GetColorValueIsInRange(IValueRange range, IColorMap map, double val)
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{
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var deltaVal = val - range.BottomValue;
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var rangeWidth = range.TopValue - range.BottomValue;
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var valPerc = deltaVal / rangeWidth; // percent of value on the distance from minValue to maxValue
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if (valPerc >= 1d)
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{
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return map.Colors[^1];
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}
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double colorPerc = 1d / (map.Colors.Count - 1d); // % of each block of color. the last is the "100% Color"
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double blockOfColor = valPerc / colorPerc;// the integer part repersents how many block to skip
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int blockIdx = (int)Math.Truncate(blockOfColor);// Idx of
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double valPercResidual = valPerc - (blockIdx * colorPerc);//remove the part represented of block
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double percOfColor = valPercResidual / colorPerc;// % of color of this block that will be filled
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Color c = GetColorByColorMap(map, blockIdx, percOfColor);
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return c;
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}
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private static IValueRange GetExtendedRange(IValueRange range)
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{
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var minVal = range.BottomValue - 1e-15d * Math.Abs(range.BottomValue);
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var maxVal = range.TopValue + 1e-15d * Math.Abs(range.TopValue);
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return new ValueRange()
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{
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BottomValue = minVal,
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TopValue = maxVal
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};
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}
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private static Color GetColorByColorMap(IColorMap map, int blockIdx, double percOfColor)
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{
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Color cTarget = map.Colors[blockIdx];
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Color cNext = map.Colors[blockIdx + 1];
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var deltaRed = cNext.R - cTarget.R;
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var deltaGreen = cNext.G - cTarget.G;
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var deltaBlue = cNext.B - cTarget.B;
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var Red = cTarget.R + (deltaRed * percOfColor);
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var Green = cTarget.G + (deltaGreen * percOfColor);
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var Blue = cTarget.B + (deltaBlue * percOfColor);
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Color c = Color.FromArgb(Alpha, (byte)Red, (byte)Green, (byte)Blue);
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return c;
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}
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private static void CheckColorMap(IColorMap map)
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{
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if (map.Colors.Count == 0)
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{
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throw new StructureHelperException(ErrorStrings.DataIsInCorrect + ": Color map is empty");
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}
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}
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}
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}
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