public static void DistanceWithinRectangle(double height, Vector2d rectangleCenterLineStart, Vector2d rectangleCenterLineEnd, double rectangleHalfWitdth, double influenceDistance, List <EPMPoint> pointList, CurveMode curveMode = CurveMode.ReverseLinear, CombineMode combineMode = CombineMode.Add, double limitation = 0)
{
Vector2d dir = rectangleCenterLineEnd - rectangleCenterLineStart;
double lineLength = dir.Length();
dir.Normalize();
Vector2d normal = new Vector2d(-dir.y, dir.x);
for (int i = 0; i < pointList.Count; i++)
{
EPMPoint p = pointList[i];
Vector2d v2 = p.pos2d - rectangleCenterLineStart;
double hlength = v2 * dir;
double vlength = v2 * normal;
double distance = 0;
if (hlength >= 0 && hlength <= lineLength && System.Math.Abs(vlength) <= rectangleHalfWitdth)
{
//The point is in the rectangle
distance = EPMGlobal.Min(rectangleHalfWitdth - System.Math.Abs(vlength), hlength, lineLength - hlength);
if (distance <= influenceDistance)
{
double y = GetHeightByCurveMode(distance / influenceDistance, curveMode) * height;
SetHeightByCombineMode(p, y, combineMode, limitation);
}
}
else
{
//The point is outside the rectangle, ignore it.
continue;
}
}
}
public static void DistanceToBorderOfRectangle(double height, Vector2d rectangleCenterLineStart, Vector2d rectangleCenterLineEnd, double rectangleHalfWitdth, double influenceDistance, List <EPMPoint> pointList, CurveMode curveMode = CurveMode.ReverseLinear, CombineMode combineMode = CombineMode.Add, double limitation = 0)
{
Vector2d dir = rectangleCenterLineEnd - rectangleCenterLineStart;
double lineLength = dir.Length();
dir.Normalize();
Vector2d normal = new Vector2d(-dir.y, dir.x);
Vector2d corner1, corner2, corner3, corner4;
corner1 = rectangleCenterLineStart + normal * rectangleHalfWitdth;
corner2 = rectangleCenterLineStart - normal * rectangleHalfWitdth;
corner3 = rectangleCenterLineEnd + normal * rectangleHalfWitdth;
corner4 = rectangleCenterLineEnd - normal * rectangleHalfWitdth;
for (int i = 0; i < pointList.Count; i++)
{
EPMPoint p = pointList[i];
Vector2d v2 = p.pos2d - rectangleCenterLineStart;
double hlength = v2 * dir;
double vlength = v2 * normal;
double distance = 0;
if (hlength >= 0 && hlength <= lineLength && System.Math.Abs(vlength) <= rectangleHalfWitdth)
{
//The point is in the rectangle, ignore it.
continue;
}
else
{
if (hlength >= 0 && hlength <= lineLength)
{
distance = System.Math.Abs(vlength - rectangleHalfWitdth);
}
else if (System.Math.Abs(vlength) <= rectangleHalfWitdth)
{
if (hlength > 0)
{
distance = hlength - lineLength;
}
else
{
distance = -hlength;
}
}
else
{
v2 = p.pos2d;
distance = EPMGlobal.Min((v2 - corner1).Length(), (v2 - corner2).Length(), (v2 - corner3).Length(), (v2 - corner4).Length());
}
if (distance <= influenceDistance)
{
double y = GetHeightByCurveMode(distance / influenceDistance, curveMode) * height;
SetHeightByCombineMode(p, y, combineMode, limitation);
}
}
}
}