/// <summary>
/// The background worker which draws the bitmap, without freezing the GUI thread.
/// Also updates the progress bar.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void imageDrawer_DoWork(object sender, DoWorkEventArgs e)
{
drawParams plotData = e.Argument as drawParams;
Bitmap temp = new Bitmap(plotData.bredde, plotData.højde);
LockBitmap lockBitmap = new LockBitmap(temp);
lockBitmap.LockBits();
//int[,] xy = plotData.rawData;
int[,] xy = createData(plotData.rawData, plotData.radius);
int max = xy.Cast <int>().Max();
Color farve = Color.Black;
int count = 0;
int done = bredde * højde;
for (int i = 0; i < bredde; i++)
{
for (int k = 0; k < højde; k++)
{
imageDrawer.ReportProgress((count * 100) / done);
count++;
if (xy[i, k] != 0)
{
farve = getColor(xy[i, k], max, plotData.off);
//Color farve = Color.Red;
}
else
{
farve = Color.Black;
}
lockBitmap.SetPixel(i, k, farve);
}
}
lockBitmap.UnlockBits();
e.Result = temp;
}
/// <summary>
/// Begins the drawing of the heatmap from the current values
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void draw_Click(object sender, EventArgs e)
{
rad.Enabled = false;
offset.Enabled = false;
drawParams para = new drawParams()
{
rawData = XY,
bredde = bredde,
højde = højde,
radius = (int)rad.Value,
off = (int)offset.Value
};
imageDrawer.RunWorkerAsync(para);
}
