65 lines
2.7 KiB
C#
Executable File
65 lines
2.7 KiB
C#
Executable File
using SkiaSharp;
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namespace MarketData.CNNProcessing
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{
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/// <summary>
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/// This class provides functionality to both scale and map data points from an upper left coordinate system to a lower left coordinate system
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/// </summary>
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public class PointMapping
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{
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public PointMapping(double width, double height, double xDataExtent, double xDataExtentMin, double yDataExtent, double yDataExtentMin, double xMarginExtent = 0.00, double yMarginExtent = 0.00)
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{
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Width = width;
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Height = height;
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XMargin = xMarginExtent;
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YMargin = yMarginExtent;
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XDataExtent = xDataExtent;
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XDataExtentMin = xDataExtentMin;
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YDataExtent = yDataExtent;
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YDataExtentMin = yDataExtentMin;
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XScalingFactor = (Width - (XMargin * 2.00)) / (XDataExtent - XDataExtentMin);
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YScalingFactor = (Height - (YMargin * 2.00)) / (YDataExtent - YDataExtentMin);
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}
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public PointMapping(PointMapping pointMapping)
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{
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Width = pointMapping.Width;
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Height = pointMapping.Height;
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XMargin = pointMapping.XMargin;
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YMargin = pointMapping.YMargin;
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XDataExtent = pointMapping.XDataExtent;
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YDataExtent = pointMapping.YDataExtent;
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XScalingFactor = pointMapping.XScalingFactor;
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YScalingFactor = pointMapping.YScalingFactor;
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}
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// MapPoint will both scale the given point and translate the given point from an upper left origin system to a bottom left origin system
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public SKPoint MapPoint(SKPoint sourcePoint)
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{
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SKPoint mappedPoint = new SKPoint((int)((sourcePoint.X - XDataExtentMin) * XScalingFactor), (int)(Height - ((sourcePoint.Y - YDataExtentMin) * YScalingFactor)));
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mappedPoint.X += (int)XMargin; // offset by the xMargin
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mappedPoint.Y -= (int)YMargin; // offset by the yMargin
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return mappedPoint;
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}
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// TranslatePoint will only translate the given point from an upper left origin system to a bottom left origin system
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public SKPoint TranslatePoint(SKPoint sourcePoint)
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{
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SKPoint mappedPoint=new SKPoint((int)sourcePoint.X,(int)(Height-sourcePoint.Y-1));
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return mappedPoint;
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}
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public double Width{get;private set;}
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public double Height{get;private set;}
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public double XDataExtent{get;private set;}
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public double XDataExtentMin{get;private set;}
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public double XRange{get{return XDataExtent-XDataExtentMin;}}
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public double YDataExtent{get;private set;}
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public double YDataExtentMin{get;private set;}
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public double YRange{get{return YDataExtent-YDataExtentMin;}}
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public double XMargin{get;private set;}
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public double YMargin{get;private set;}
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public double XScalingFactor{get;private set;}
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public double YScalingFactor{get;private set;}
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}
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}
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