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Fix ImageHelper not rendering images due to issue in PointMapping.
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Sean
2026-03-10 23:48:25 -04:00
parent 59b4fb0477
commit 8715bed4cf
4 changed files with 147 additions and 75 deletions
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27
MarketData/MarketDataLib/CNNProcessing/PointMapping.cs
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@@ -29,7 +29,9 @@ namespace MarketData.CNNProcessing
XMargin = pointMapping.XMargin;
YMargin = pointMapping.YMargin;
XDataExtent = pointMapping.XDataExtent;
XDataExtentMin = pointMapping.XDataExtentMin;
YDataExtent = pointMapping.YDataExtent;
YDataExtentMin = pointMapping.YDataExtentMin;
XScalingFactor = pointMapping.XScalingFactor;
YScalingFactor = pointMapping.YScalingFactor;
}
@@ -43,15 +45,22 @@ namespace MarketData.CNNProcessing
/// <returns></returns>
public SKPoint MapPoint(SKPoint sourcePoint)
{
SKPoint mappedPoint = new SKPoint((int)((sourcePoint.X - XDataExtentMin) * XScalingFactor), (int)((Height - 1) - ((sourcePoint.Y - YDataExtentMin) * YScalingFactor)));
mappedPoint.X += (int)XMargin; // offset by the xMargin
mappedPoint.Y -= (int)YMargin; // offset by the yMargin
if (mappedPoint.X > XDataExtent) mappedPoint.X = (int)XDataExtent; // constrain X to XDataExtent
if (mappedPoint.Y > YDataExtent) mappedPoint.Y = (int)YDataExtent; // constrain Y to YDataExtent
if (mappedPoint.X < XDataExtentMin) mappedPoint.X = (int)XDataExtentMin; // constrain X to XDataExtentMin
if (mappedPoint.Y < YDataExtentMin) mappedPoint.Y = (int)YDataExtentMin; // constrain Y to YDataExtentMin
return mappedPoint;
}
SKPoint mappedPoint = new SKPoint(
(float)((sourcePoint.X - XDataExtentMin) * XScalingFactor),
(float)((Height - 1) - ((sourcePoint.Y - YDataExtentMin) * YScalingFactor))
);
mappedPoint.X += (float)XMargin;
mappedPoint.Y -= (float)YMargin;
// Clamp to image bounds
if (mappedPoint.X > Width - 1) mappedPoint.X = (float)(Width - 1);
if (mappedPoint.Y > Height - 1) mappedPoint.Y = (float)(Height - 1);
if (mappedPoint.X < 0) mappedPoint.X = 0;
if (mappedPoint.Y < 0) mappedPoint.Y = 0;
return mappedPoint;
}
// TranslatePoint will only translate the given point from an upper left origin system to a bottom left origin system
public SKPoint TranslatePoint(SKPoint sourcePoint)
{