/// <summary>
/// Determines whether the testing point is inside the circle.
/// </summary>
/// <param name="pt">The testing point.</param>
/// <param name="theCircle">The circle.</param>
/// <returns>System.Int32:
/// -1 => pt is outside the circle
/// 0 => pt is at the circle margin
/// 1 => pt is inside the circle
/// default (for empty circle data) is outside
/// </returns>
public static int IsPointInsideCircle(this PointD pt, RoundData theCircle, double marginDetectorPrecision = 2.0d)
{
if (theCircle.IsNull)
{
return(-1); // default is outside
}
if (PointD.Distance(pt, theCircle.pointDCircleCenter()) < theCircle.DRadius)
{
return(1);
}
if (Math.Abs(PointD.Distance(pt, theCircle.pointDCircleCenter()) - theCircle.DRadius) <= marginDetectorPrecision)
{
return(0);
}
return(-1);
}
private void ChangeSunDiskData(PointD ptCurrMousePosition)
{
if (ptMouseDown != ptCurrMousePosition) // not just click
{
switch (currMouseActionRegime)
{
case MouseActionsRegime.Nothing:
break;
case MouseActionsRegime.DrawingSunDisk:
sunDiskPositionAndSize = new RoundData(ptMouseDown.X, ptMouseDown.Y,
ptMouseDown.Distance(ptCurrMousePosition));
break;
case MouseActionsRegime.MovingSunDisk:
sunDiskPositionAndSize.DCenterX = sunDiskPositionAndSizeBeforeMovingResizing.DCenterX + (ptCurrMousePosition.X - ptMouseDown.X);
sunDiskPositionAndSize.DCenterY = sunDiskPositionAndSizeBeforeMovingResizing.DCenterY + (ptCurrMousePosition.Y - ptMouseDown.Y);
break;
case MouseActionsRegime.ResizingSunDisk:
sunDiskPositionAndSize.DRadius =
ptCurrMousePosition.Distance(sunDiskPositionAndSize.pointDCircleCenter());
break;
default:
break;
}
}
}
/// <summary>
/// Gets the local minimums distribution.
/// </summary>
/// <param name="dmFieldData">The dm field data.</param>
/// <param name="dimensionNumber">The dimension number:
/// 1 - rows (angle)
/// 2 - columns (distance)
/// </param>
/// <returns>DenseMatrix.</returns>
//public static DenseMatrix GetLocalMinimumsDistribution(DenseMatrix dmFieldData, PointD sunCenterPoint, PointD imageCenterPoint, double imageRadius, int imageHeight, double imageCircleCropFactor = 0.9d, int dimensionNumber = 1)
public static List <Point3D> GetLocalMinimumsDistribution(DenseMatrix dmFieldData, RoundData sunDiskData, RoundData imageRoundData, int imageHeight, double imageCircleCropFactor = 0.9d)
{
// DenseMatrix dmFieldminimumsData = DenseMatrix.Create(dmFieldData.RowCount, dmFieldData.ColumnCount, 0.0d);
List <Point3D> lRetPoints = new List <Point3D>();
double imageRadius = imageRoundData.DRadius;
PointD imageCenterPoint = imageRoundData.pointDCircleCenter();
PointPolar imageCenterPointRelatedToSunCenter = new PointPolar(imageCenterPoint - sunDiskData.pointDCircleCenter(), true);
double distanceSunCenterToImageCenter = PointD.Distance(imageCenterPoint, sunDiskData.pointDCircleCenter());
#region // obsolete
//if (dimensionNumber == 1)
//{
#endregion // obsolete
for (int i = 0; i < dmFieldData.RowCount; i++)
{
bool itsTheCropCase = false;
//если направлени на кроп кадра - то не берем в расмотрение
double currentAngle = ((double)i / (double)(dmFieldData.RowCount - 1)) * 2.0d * Math.PI;
LineDescription2D line, lineMargin;
if (currentAngle < Math.PI)
{
//верхняя половина, смотрим направление на y=0.0d
line = new LineDescription2D(sunDiskData.pointDCircleCenter(),
new Vector2D(Math.Cos(currentAngle), -Math.Sin(currentAngle)));
lineMargin = new LineDescription2D(new PointD(0.0d, 0.0d), new Vector2D(1.0d, 0.0d));
}
else
{
line = new LineDescription2D(sunDiskData.pointDCircleCenter(),
new Vector2D(Math.Cos(currentAngle), Math.Sin(currentAngle)));
lineMargin = new LineDescription2D(new PointD(0.0d, imageHeight), new Vector2D(1.0d, 0.0d));
}
PointD crossPointD = LineDescription2D.CrossPoint(line, lineMargin);
if (crossPointD.Distance(imageCenterPoint) < imageRadius)
{
itsTheCropCase = true;
}
#region // obsolete
//double yMargin = 0.0d;
//double xMargin = sunCenterPoint.X + (yMargin - sunCenterPoint.Y) / Math.Tan(currentAngle);
//double dx = xMargin - imageCenterPoint.X;
//double dy = yMargin - imageCenterPoint.Y;
//if (Math.Sqrt(dx * dx + dy * dy) < imageRadius) itsTheCropCase = true;
#endregion // obsolete
#region //obsolete
//else
//{
// //нижняя половина, смотрим направление на y=imageHeight
// double yMargin = (double)imageHeight;
// double xMargin = sunCenterPoint.X + (yMargin - sunCenterPoint.Y) / Math.Tan(currentAngle);
// double dx = xMargin - imageCenterPoint.X;
// double dy = yMargin - imageCenterPoint.Y;
// if (Math.Sqrt(dx * dx + dy * dy) < imageRadius) itsTheCropCase = true;
//}
#endregion //obsolete
//Если слишком близко к краю изображения - тоже исключаем. Минимум должен лежать не ближе, например, 1/15
//DenseMatrix dmSlicedDataMatrix = (DenseMatrix)dmFieldData.SubMatrix(i, 1, 0, dmFieldData.ColumnCount);
DenseVector dvRowDataVector = (DenseVector)dmFieldData.EnumerateRows().ElementAt(i);
#region // debug plotting
//dvRowDataVector.SaveVectorDataAsImagePlot(
// "D:\\_gulevlab\\SkyImagesAnalysis_appData\\patent-samples\\result.2015-03-24\\img-2014-09-20T16-03-58devID1\\dvRowDataVector-plot-image-" +
// i.ToString("D03") + "-step1.png");
#endregion // debug plotting
dvRowDataVector.MapIndexedInplace((idx, x) => ((x == 0.0d) || (idx < sunDiskData.DRadius * 1.5d)) ? (1.0d) : (x));
#region // debug plotting
//dvRowDataVector.SaveVectorDataAsImagePlot(
// "D:\\_gulevlab\\SkyImagesAnalysis_appData\\patent-samples\\result.2015-03-24\\img-2014-09-20T16-03-58devID1\\dvRowDataVector-plot-image-" +
// i.ToString("D03") + "-step2.png");
#endregion // debug plotting
double phiFromImageCenterToDirection = imageCenterPointRelatedToSunCenter.Phi - currentAngle;
double distanceToImageMargin = distanceSunCenterToImageCenter * Math.Cos(phiFromImageCenterToDirection) +
Math.Sqrt(imageRadius * imageRadius -
distanceSunCenterToImageCenter * distanceSunCenterToImageCenter *
Math.Sin(phiFromImageCenterToDirection) *
Math.Sin(phiFromImageCenterToDirection));
dvRowDataVector.MapIndexedInplace(
(idx, x) => ((double)idx / distanceToImageMargin >= imageCircleCropFactor) ? (1.0d) : (x));
#region // debug plotting
//dvRowDataVector.SaveVectorDataAsImagePlot(
// "D:\\_gulevlab\\SkyImagesAnalysis_appData\\patent-samples\\result.2015-03-24\\img-2014-09-20T16-03-58devID1\\dvRowDataVector-plot-image-" +
// i.ToString("D03") + "-step3.png");
#endregion // debug plotting
double minValue = dvRowDataVector.Minimum();
int minValueIndex = dvRowDataVector.MinimumIndex();
//if (!itsTheCropCase) dmFieldminimumsData[i, minValueIndex] = minValue;
if ((!itsTheCropCase) && ((double)minValueIndex > sunDiskData.DRadius))
{
lRetPoints.Add(new Point3D(currentAngle, minValueIndex, minValue));
}
else
{
continue;
}
}
#region // obsolete
//}
//else if (dimensionNumber == 2)
//{
// for (int i = 0; i < dmFieldData.ColumnCount; i++)
// {
// DenseMatrix dmSlicedDataMatrix = (DenseMatrix)dmFieldData.SubMatrix(0, dmFieldData.RowCount, i, 1);
// DenseVector dvSlicedDataVector = DenseVector.OfEnumerable(dmSlicedDataMatrix.Values);
// dvSlicedDataVector.MapInplace(new Func<double, double>(x => (x == 0.0d) ? (1.0d) : (x)));
// double minValue = dvSlicedDataVector.Minimum();
// int minValueIndex = dvSlicedDataVector.MinimumIndex();
// dmFieldminimumsData[minValueIndex, i] = minValue;
// }
//}
#endregion // obsolete
//return dmFieldminimumsData;
return(lRetPoints);
}
