private void CreateGraphs(float[] monthsAirFrostData, float[] monthsRainfallData, float[] monthsSunshineData,
float[] monthsMinTempData, float[] monthsMaxTempData)
{
Graph sunshineHoursGraph = new Graph("Monthly Hours of Sunshine", "Number of Hours", 20f, 1000f, 0f, monthsSunshineData, Color.Yellow);
Graph airFrostDaysGraph = new Graph("Monthly Days of Airfrost", "Number of Days", 5f, 1000f, 0f, monthsAirFrostData, Color.LightBlue);
Graph rainfallGraph = new Graph("Monthly Amount of Rainfall", "Rainfall (mm)", 10f, 1000f, 0f, monthsRainfallData, Color.RoyalBlue);
Graph minAndMaxTempGraph = new BoxPlotGraph("Monthly Minimum and Maximum Temperature", "Temperature", 2f, 100f, -100f, Color.Orange, monthsMinTempData, monthsMaxTempData);
graphs = new Graph[] { minAndMaxTempGraph, sunshineHoursGraph, airFrostDaysGraph, rainfallGraph };
}
// Bars have a varied start point with provided min and max values
private void DrawBoxPlotGraph(Graphics panelGraphics, SolidBrush writeBrush, float overallRange, float pixelsPerUnit, BoxPlotGraph bpGraph)
{
// Offset required due to negative values
float offset = overallRange - bpGraph.YearMaxValue;
for (int i = 0; i < monthNames.Length; i++)
{
// Min and Max temp of month
float currentMinValue = bpGraph.MinDataSet[i];
float currentMaxValue = bpGraph.MaxDataSet[i];
float rangeBetweenMinAndMax = currentMaxValue - currentMinValue;
// Calculates how box is drawn
float startingPoint = (currentMinValue + offset) * pixelsPerUnit;
float boxLength = rangeBetweenMinAndMax * pixelsPerUnit;
RectangleF boxPlot = new RectangleF(graphStartPosX + startingPoint, yBarPositions[i], boxLength, graphBarThickness);
using (SolidBrush solidBrush = new SolidBrush(bpGraph.GraphBarColour))
{
panelGraphics.FillRectangle(solidBrush, boxPlot);
}
// Draw min and max values alongside boxplot (optional)
if (chkShowValues.Checked)
{
PointF minValueTextPoint = new PointF(graphStartPosX + startingPoint, yBarPositions[i] + (graphBarThickness / 4));
PointF maxValueTextPoint = new PointF(graphStartPosX + startingPoint + boxLength, yBarPositions[i] + (graphBarThickness / 4));
string drawMinValue = currentMinValue.ToString();
string drawMaxValue = currentMaxValue.ToString();
panelGraphics.DrawString(drawMinValue, graphValuesFont, writeBrush, minValueTextPoint);
panelGraphics.DrawString(drawMaxValue, graphValuesFont, writeBrush, maxValueTextPoint);
}
}
}
