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https://gitee.com/akwkevin/aistudio.-wpf.-diagram
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项目结构调整
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艾竹
331
Others/Live-Charts-master/UwpView/HeatSeries.cs
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331
Others/Live-Charts-master/UwpView/HeatSeries.cs
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//The MIT License(MIT)
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//Copyright(c) 2016 Alberto Rodriguez & LiveCharts Contributors
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//Permission is hereby granted, free of charge, to any person obtaining a copy
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//of this software and associated documentation files (the "Software"), to deal
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//in the Software without restriction, including without limitation the rights
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//to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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//copies of the Software, and to permit persons to whom the Software is
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//furnished to do so, subject to the following conditions:
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//The above copyright notice and this permission notice shall be included in all
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//copies or substantial portions of the Software.
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//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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//FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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//AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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//LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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//OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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//SOFTWARE.
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using Windows.UI;
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using Windows.UI.Xaml;
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using Windows.UI.Xaml.Controls;
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using Windows.UI.Xaml.Data;
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using Windows.UI.Xaml.Media;
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using Windows.UI.Xaml.Shapes;
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using LiveCharts.Definitions.Points;
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using LiveCharts.Definitions.Series;
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using LiveCharts.Dtos;
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using LiveCharts.Helpers;
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using LiveCharts.SeriesAlgorithms;
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using LiveCharts.Uwp.Charts.Base;
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using LiveCharts.Uwp.Points;
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using LiveCharts.Uwp.Components;
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namespace LiveCharts.Uwp
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{
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/// <summary>
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/// Use a HeatSeries in a cartesian chart to draw heat maps.
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/// </summary>
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public class HeatSeries : Series, IHeatSeriesView
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{
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#region Constructors
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/// <summary>
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/// Initializes a new instance of HeatSeries class
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/// </summary>
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public HeatSeries()
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{
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Model = new HeatAlgorithm(this);
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InitializeDefuaults();
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}
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/// <summary>
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/// Initializes a new instance of HeatSries class, using a given mapper
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/// </summary>
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/// <param name="configuration"></param>
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public HeatSeries(object configuration)
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{
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Model = new HeatAlgorithm(this);
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Configuration = configuration;
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InitializeDefuaults();
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}
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#endregion
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#region Private Properties
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private HeatColorRange ColorRangeControl { get; set; }
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#endregion
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#region Properties
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/// <summary>
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/// The draws heat range property
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/// </summary>
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public static readonly DependencyProperty DrawsHeatRangeProperty = DependencyProperty.Register(
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"DrawsHeatRange", typeof(bool), typeof(HeatSeries),
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new PropertyMetadata(true, CallChartUpdater()));
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/// <summary>
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/// Gets or sets whether the series should draw the heat range control, it is the vertical frame to the right that displays the heat gradient.
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/// </summary>
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public bool DrawsHeatRange
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{
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get { return (bool)GetValue(DrawsHeatRangeProperty); }
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set { SetValue(DrawsHeatRangeProperty, value); }
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}
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/// <summary>
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/// The gradient stop collection property
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/// </summary>
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public static readonly DependencyProperty GradientStopCollectionProperty = DependencyProperty.Register(
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"GradientStopCollection", typeof(GradientStopCollection), typeof(HeatSeries), new PropertyMetadata(default(GradientStopCollection)));
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/// <summary>
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/// Gets or sets the gradient stop collection, use every gradient offset and color properties to define your gradient.
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/// </summary>
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public GradientStopCollection GradientStopCollection
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{
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get { return (GradientStopCollection)GetValue(GradientStopCollectionProperty); }
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set { SetValue(GradientStopCollectionProperty, value); }
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}
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/// <summary>
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/// Gets the gradient stops, this property is normally used internally to communicate with the core of the library.
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/// </summary>
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public IList<CoreGradientStop> Stops
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{
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get
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{
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return GradientStopCollection.Select(x => new CoreGradientStop
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{
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Offset = x.Offset,
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Color = new CoreColor(x.Color.A, x.Color.R, x.Color.G, x.Color.B)
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}).ToArray();
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}
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}
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#endregion
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#region Overridden Methods
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/// <summary>
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/// Gets the view of a given point
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/// </summary>
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/// <param name="point"></param>
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/// <param name="label"></param>
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/// <returns></returns>
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public override IChartPointView GetPointView(ChartPoint point, string label)
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{
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var pbv = (HeatPoint) point.View;
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if (pbv == null)
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{
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pbv = new HeatPoint
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{
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IsNew = true,
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Rectangle = new Rectangle()
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};
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Model.Chart.View.AddToDrawMargin(pbv.Rectangle);
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}
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else
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{
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pbv.IsNew = false;
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point.SeriesView.Model.Chart.View
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.EnsureElementBelongsToCurrentDrawMargin(pbv.Rectangle);
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point.SeriesView.Model.Chart.View
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.EnsureElementBelongsToCurrentDrawMargin(pbv.HoverShape);
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point.SeriesView.Model.Chart.View
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.EnsureElementBelongsToCurrentDrawMargin(pbv.DataLabel);
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}
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pbv.Rectangle.Stroke = Stroke;
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pbv.Rectangle.StrokeThickness = StrokeThickness;
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pbv.Rectangle.Visibility = Visibility;
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pbv.Rectangle.StrokeDashArray = StrokeDashArray;
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Canvas.SetZIndex(pbv.Rectangle, Canvas.GetZIndex(pbv.Rectangle));
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if (Model.Chart.RequiresHoverShape && pbv.HoverShape == null)
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{
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pbv.HoverShape = new Rectangle
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{
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Fill = new SolidColorBrush(Colors.Transparent),
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StrokeThickness = 0
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};
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Canvas.SetZIndex(pbv.HoverShape, short.MaxValue);
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var uwpfChart = (Chart)Model.Chart.View;
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uwpfChart.AttachHoverableEventTo(pbv.HoverShape);
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Model.Chart.View.AddToDrawMargin(pbv.HoverShape);
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}
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if (pbv.HoverShape != null) pbv.HoverShape.Visibility = Visibility;
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if (DataLabels)
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{
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pbv.DataLabel = UpdateLabelContent(new DataLabelViewModel
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{
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FormattedText = label,
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Instance = point.Instance
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}, pbv.DataLabel);
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}
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return pbv;
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}
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/// <summary>
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/// Erases series
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/// </summary>
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/// <param name="removeFromView"></param>
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public override void Erase(bool removeFromView = true)
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{
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Values.GetPoints(this).ForEach(p =>
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{
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p.View?.RemoveFromView(Model.Chart);
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});
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if (removeFromView) Model.Chart.View.RemoveFromView(this);
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}
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/// <summary>
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/// Defines special elements to draw according to the series type
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/// </summary>
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public override void DrawSpecializedElements()
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{
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if (DrawsHeatRange)
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{
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if (ColorRangeControl == null)
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{
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ColorRangeControl = new HeatColorRange();
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}
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ColorRangeControl.SetBinding(TextBlock.FontFamilyProperty,
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new Binding {Path = new PropertyPath("FontFamily"), Source = this});
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ColorRangeControl.SetBinding(TextBlock.FontSizeProperty,
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new Binding {Path = new PropertyPath("FontSize"), Source = this});
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ColorRangeControl.SetBinding(TextBlock.FontStretchProperty,
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new Binding {Path = new PropertyPath("FontStretch"), Source = this});
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ColorRangeControl.SetBinding(TextBlock.FontStyleProperty,
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new Binding {Path = new PropertyPath("FontStyle"), Source = this});
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ColorRangeControl.SetBinding(TextBlock.FontWeightProperty,
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new Binding {Path = new PropertyPath("FontWeight"), Source = this});
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ColorRangeControl.SetBinding(TextBlock.ForegroundProperty,
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new Binding {Path = new PropertyPath("Foreground"), Source = this});
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ColorRangeControl.SetBinding(VisibilityProperty,
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new Binding {Path = new PropertyPath("Visibility"), Source = this});
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if (ColorRangeControl.Parent == null)
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{
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Model.Chart.View.AddToView(ColorRangeControl);
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}
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var max = ColorRangeControl.SetMax(ActualValues.GetTracker(this).WLimit.Max.ToString(CultureInfo.InvariantCulture));
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var min = ColorRangeControl.SetMin(ActualValues.GetTracker(this).WLimit.Min.ToString(CultureInfo.InvariantCulture));
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var m = max > min ? max : min;
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ColorRangeControl.Width = m;
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Model.Chart.ControlSize = new CoreSize(Model.Chart.ControlSize.Width - m - 4,
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Model.Chart.ControlSize.Height);
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}
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else
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{
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Model.Chart.View.RemoveFromView(ColorRangeControl);
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}
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}
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/// <summary>
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/// Places specializes items
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/// </summary>
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public override void PlaceSpecializedElements()
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{
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if (!DrawsHeatRange) return;
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if (DrawsHeatRange)
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{
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ColorRangeControl.UpdateFill(GradientStopCollection);
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ColorRangeControl.Height = Model.Chart.DrawMargin.Height;
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Canvas.SetTop(ColorRangeControl, Model.Chart.DrawMargin.Top);
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Canvas.SetLeft(ColorRangeControl, Model.Chart.DrawMargin.Left + Model.Chart.DrawMargin.Width + 4);
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}
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}
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#endregion
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#region Private Methods
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private void InitializeDefuaults()
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{
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//this.SetIfNotSet(StrokeThicknessProperty, 0d);
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//this.SetIfNotSet(ForegroundProperty, new SolidColorBrush(Colors.White));
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//this.SetIfNotSet(StrokeProperty, new SolidColorBrush(Colors.White));
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this.SetIfNotSet(GradientStopCollectionProperty, new GradientStopCollection());
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Func<ChartPoint, string> defaultLabel = x => x.Weight.ToString(CultureInfo.InvariantCulture);
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this.SetIfNotSet(LabelPointProperty, defaultLabel);
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DefaultFillOpacity = 0.4;
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}
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/// <summary>
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/// Initializes the series colors if they are not set
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/// </summary>
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public override void InitializeColors()
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{
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var uwpfChart = (Chart)Model.Chart.View;
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var nextColor = uwpfChart.GetNextDefaultColor();
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if (Stroke == null)
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SetValue(StrokeProperty, new SolidColorBrush(nextColor));
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if (Fill == null)
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SetValue(FillProperty, new SolidColorBrush(nextColor));
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var defaultColdColor = new Color
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{
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A = (byte)(nextColor.A * (DefaultFillOpacity > 1
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? 1
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: (DefaultFillOpacity < 0 ? 0 : DefaultFillOpacity))),
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R = nextColor.R,
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G = nextColor.G,
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B = nextColor.B
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};
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if (!GradientStopCollection.Any())
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{
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GradientStopCollection.Add(new GradientStop
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{
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Color = defaultColdColor,
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Offset = 0
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});
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GradientStopCollection.Add(new GradientStop
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{
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Color = nextColor,
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Offset = 1
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});
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}
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}
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#endregion
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}
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}
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