/// <summary>
/// Gets the ordinate on the specified axis that is represented by the locating value
/// </summary>
/// <param name="locator">The ordinate that is to be displayed</param>
/// <param name="axis">The axis on which the ordinate is required</param>
/// <returns>The value of the ordinate that the point is to be drawn at</returns>
int GetPointOrdinate(float locator, axisParameters axis, bool horizontal)
{
float locatorToRepresent = locator + (horizontal ? -1 : 1) * axis.baseOffset;
int position = (int)(axis.startLocation + (axis.scaleFactor * locatorToRepresent));
return(position);
}
private void MyEvents_AxesModifiedByUser(axisParameters horizontalAxis, axisParameters verticalAxis, NormalisationType normalisation)
{
GraphPanel.SetNormalisationType(normalisation);
GraphPanel.SetHorizontalAxis(horizontalAxis);
GraphPanel.SetVerticalAxis(verticalAxis);
Invalidate();
}
/// <summary>
/// Draws a the line represented by the list of points using the specified graphics
/// </summary>
/// <param name="horizontalAxis">The horizontal axis parameters</param>
/// <param name="verticalAxis">The vertical axis parameters</param>
/// <param name="g">The graphics to use to draw the line</param>
/// <param name="upToLap">The last lap to display</param>
public void DrawLine(axisParameters horizontalAxis, axisParameters verticalAxis, Graphics g, int upToLap)
{
//If the line is to be shown
if (show)
{
Point startPoint = new Point();
Point endPoint = new Point();
Color lineColour = Data.Drivers[driverIndex].LineColour;
Pen pen = new Pen(lineColour, 1);
//Lap number is 0-based
endPoint.X = GetPointOrdinate(points[0].lap, horizontalAxis, true);
endPoint.Y = GetPointOrdinate(points[0].time, verticalAxis, false);
//Cycle through the points
for (int pointIndex = 1; pointIndex < points.Count; pointIndex++)
{
//Set the new start point to the old end point
startPoint = endPoint;
//Update the end point
endPoint.X = GetPointOrdinate(points[pointIndex].lap, horizontalAxis, true);
endPoint.Y = GetPointOrdinate(points[pointIndex].time, verticalAxis, false);
//If the point is within range and is to be shown
if ((startPoint.X >= horizontalAxis.startLocation) && (points[pointIndex].draw) && (points[pointIndex].lap <= upToLap))
{
g.DrawLine(pen, startPoint, endPoint);
}
}
pen.Dispose();
}
}
/// <summary>
/// Sets the axes to the specified values
/// </summary>
void SetupAxes(axisParameters horizontalAxis, axisParameters verticalAxis, NormalisationType normalisation)
{
this.horizontalAxis = horizontalAxis;
this.verticalAxis = verticalAxis;
graphNormalisationType = normalisation;
Invalidate();
}
protected void MyEvents_AxesModified(axisParameters XAxis, axisParameters YAxis, NormalisationType normalisation, bool UserModified)
{
if (UserModified)
{
SetupAxes(XAxis, YAxis, normalisation);
}
}
/// <summary>
/// Fires the AxesChangedByComputer event. This represents any scaling or setting which does not involve the axes panel.
/// </summary>
/// <param name="horizontalAxis">The new horizontal axis</param>
/// <param name="verticalAxis">The new vertical axis</param>
/// <param name="normalisation">The new graph normalisation type</param>
public static void OnAxesComputerGenerated(axisParameters horizontalAxis, axisParameters verticalAxis, NormalisationType normalisation)
{
if (AxesChangedByComputer != null)
{
AxesChangedByComputer(horizontalAxis, verticalAxis, normalisation);
}
}
/// <summary>
/// Populates the text boxes on the panel with data from the given axes
/// </summary>
void PopulateAxesBoxes(axisParameters horizontalAxis, axisParameters verticalAxis, NormalisationType normalisationType)
{
axisParameterDataBoxes[0, 0].Text = Convert.ToString(horizontalAxis.baseOffset);
axisParameterDataBoxes[0, 1].Text = Convert.ToString(horizontalAxis.scaleFactor);
axisParameterDataBoxes[0, 2].Text = Convert.ToString(horizontalAxis.startLocation);
axisParameterDataBoxes[0, 3].Text = Convert.ToString(horizontalAxis.axisLabelSpacing);
axisParameterDataBoxes[1, 0].Text = Convert.ToString(verticalAxis.baseOffset);
axisParameterDataBoxes[1, 1].Text = Convert.ToString(verticalAxis.scaleFactor);
axisParameterDataBoxes[1, 2].Text = Convert.ToString(verticalAxis.startLocation);
axisParameterDataBoxes[1, 3].Text = Convert.ToString(verticalAxis.axisLabelSpacing);
NormalisationTypeSelected.SelectedIndex = (int)normalisationType;
}
/// <summary>
/// Converts a panel coordinate location into a lapDataPoint
/// </summary>
/// <param name="point">The point to be converted</param>
/// <param name="HorizontalAxis">The horizontal axis used for conversion</param>
/// <param name="VerticalAxis">The vertical axis used for conversion</param>
/// <returns>The lapDataPoint closest to the specified point</returns>
public static lapDataPoint GetPositionOfPoint(Point point, axisParameters HorizontalAxis, axisParameters VerticalAxis)
{
lapDataPoint pointOnAxes;
pointOnAxes.driver = -1;
pointOnAxes.draw = true;
int x = point.X;
int y = point.Y;
pointOnAxes.lap = (int)((x - HorizontalAxis.startLocation) / HorizontalAxis.scaleFactor) - HorizontalAxis.baseOffset + 1;
pointOnAxes.time = ((y - VerticalAxis.startLocation) / VerticalAxis.scaleFactor) + VerticalAxis.baseOffset;
return(pointOnAxes);
}
private void AxisModified(object sender, axisParameters e)
{
MyEvents.OnAxesComputerGenerated(GraphPanel.HorizontalAxis, GraphPanel.VerticalAxis, GraphPanel.NormalisationType);
Invalidate();
}
void MyEvents_AxesModified(axisParameters XAxis, axisParameters YAxis, NormalisationType normalisation)
{
localHorizontalAxis = XAxis;
localVerticalAxis = YAxis;
PopulateAxesBoxes(XAxis, YAxis, normalisation);
}
