public override KeyValuePair <double, Handle> GetSelectionDistance(SysPoint point)
{
double distance;
if (!ShouldRender)
{
distance = double.NaN;
}
else
{
BoardPoint boardPoint = Board.GetBoardPoint(point);
BoardPoint observerPosition = GetEffectiveObserverPosition();
Line2 bearingLine = new Line2(observerPosition, new Vector2(0, 1).Rotate(-Bearing));
distance = Math.Abs(bearingLine.DistanceTo(boardPoint)) * Board.ZoomFactor;
// the distance measurement considers the entire infinite line, but we only want to consider the ray starting from the observer, so
// we'll ignore the portion of the line on the other side of the observer point
if (distance > 4 || bearingLine.ClosestPointOnSegment(boardPoint) == bearingLine.Start &&
boardPoint.DistanceTo(bearingLine.Start) * Board.ZoomFactor > 4)
{
distance = double.NaN;
}
}
return(new KeyValuePair <double, Handle>(distance, null));
}
private void DrawResults()
{
Vector2 point = Point.position;
Line2 line = CreateLine2(Line);
Vector2 closestPoint;
float dist0 = Distance.Point2Line2(ref point, ref line, out closestPoint);
float dist1 = line.DistanceTo(point);
DrawVectorLine(closestPoint, point);
/*
* List<Vector2> linePoints = new List<Vector2>();
* linePoints.Add(closestPoint); // ...one on the left side of the screen somewhere
* linePoints.Add(point);
* // ...and one on the right
*
* // Make a VectorLine object using the above points, with a width of 2 pixels
* var vectorLine = new VectorLine("Line", linePoints, 2.0f);
*
* // Draw the line
* vectorLine.Draw();
*/
LogInfo(dist0 + " " + dist1);
}
private void OnDrawGizmos()
{
Vector2 point = Point.position;
Line2 line = CreateLine2(Line);
Vector2 closestPoint;
float dist0 = Distance.Point2Line2(ref point, ref line, out closestPoint);
float dist1 = line.DistanceTo(point);
FiguresColor();
DrawLine(ref line);
ResultsColor();
DrawPoint(closestPoint);
LogInfo(dist0 + " " + dist1);
}
