protected int DrawPath(Bitmap image, Graphics graphics, Point start, Point end, out TimeSpan time)
{
// performs boundary check first
BasePathScenario.CheckBounds(ref start, ref end, DefaultAreaWidth, DefaultAreaHeight);
// determines the options
bool flagPerformOptimizations = (bool)Invoke(getOption, checkPerformOptimization);
bool flagDrawPivotPoints = (bool)Invoke(getOption, checkDrawPivotPoints);
bool flagDrawLargerPivots = (bool)Invoke(getOption, checkDrawLargerPivots);
// initializes the parameters
int result = 0;
IReadOnlyCollection <Point> points;
IReadOnlyCollection <Point> pivotPoints;
// finds the path while measuring time elapsed
DateTime startDate = DateTime.Now;
float precisionAlignment = objectDiameter % 2 == 0 ? 0.5f : 0.0f;
Pen pen = new Pen(Color.DarkGreen)
{
Width = objectDiameter - precisionAlignment, StartCap = LineCap.Round, EndCap = LineCap.Round, LineJoin = LineJoin.Round
};
bool found = activePathFinder.TryFindPath(start, end, stopFunction, out points, out pivotPoints, flagPerformOptimizations);
time = DateTime.Now - startDate;
if (found)
{
// draws connected lines through all the points
if (points.Count > 1)
{
graphics.DrawLines(pen, points.ToArray());
}
// draws markers at pivot points (if turned on)
if (flagDrawPivotPoints && pivotPoints != null)
{
foreach (Point highlightPoint in pivotPoints)
{
if (flagDrawLargerPivots)
{
DrawMarker(graphics, highlightPoint, Brushes.Red, true);
}
else
{
image.SetPixel(highlightPoint.X, highlightPoint.Y, Color.Red);
}
}
}
result = points.Count;
}
return(result);
}
private void ChangeScenario()
{
activeScenario = scenarioList[listScenarios.SelectedIndex];
taskList.Add(() =>
{
RecreateDefaultImage(false, needsUpdate);
needsUpdate = false;
});
}