private void button_draw_Click(object sender, EventArgs e)
{
if (!get_parabol())
{
return;
}
DrawParabol drawParapol = new DrawParabol(bitmap);
if (comboBox_algo.Text.Equals("DDA"))
{
drawParapol.DDA(parabol, Color.Blue);
}
else if (comboBox_algo.Text.Equals("Bresenham"))
{
drawParapol.Bresenham(parabol, Color.Blue);
}
else if (comboBox_algo.Text.Equals("MidPoint"))
{
drawParapol.MidPoint(parabol, Color.Blue);
}
// refresh picture box every draw
pictureBox_draw.Refresh();
}
private void button_randDraw_Click(object sender, EventArgs e)
{
if (!get_randNum())
{
return;
}
// clear all drawings before random
clearAll();
// if no random list parabol, or old one is not enough, create new one
// otherwise, use the already have random list parabol
if (parabolS.Count < this.numRand)
{
randParabolS(numRand);
}
// StopWatch object for calculating execution time of the algorithm
// StartNew and Stop for make sure stopwatch is not redundant object
Stopwatch stopwatch = Stopwatch.StartNew();
stopwatch.Stop();
DrawParabol drawParabol = new DrawParabol(bitmap);
if (comboBox_algo.Text.Equals("DDA"))
{
stopwatch.Restart();
for (int i = 0; i < numRand; ++i)
{
drawParabol.DDA(parabolS[i], Color.Blue);
}
stopwatch.Stop();
}
else if (comboBox_algo.Text.Equals("Bresenham"))
{
stopwatch.Restart();
for (int i = 0; i < numRand; ++i)
{
drawParabol.Bresenham(parabolS[i], Color.Blue);
}
stopwatch.Stop();
}
else if (comboBox_algo.Text.Equals("MidPoint"))
{
stopwatch.Restart();
for (int i = 0; i < numRand; ++i)
{
drawParabol.MidPoint(parabolS[i], Color.Blue);
}
stopwatch.Stop();
}
// set running time to text box
textBox_randTime.Text = stopwatch.ElapsedMilliseconds.ToString() + " ms";
// refresh picture box every draw
pictureBox_draw.Refresh();
}