private void Button_draw_3D_Click(object sender, EventArgs e)
{
string exp = textBox_exp_3D.Text;
if (exp == "")
{
MessageBox.Show("请输入表达式。");
return;
}
try
{
Function.Function func = new Function.Function(exp);
Caculate3D = func.GetValue;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
if (MaxX_3D <= MinX_3D || MaxY_3D <= MinY_3D)
{
MessageBox.Show("定义域输入不合法。");
return;
}
Bitmap bitmap = new Bitmap(pictureBox_3D.Width, pictureBox_3D.Height);
using (Graphics g = Graphics.FromImage(bitmap))
{
painter3D = new Painter3D(pictureBox_3D, g, pen_3D, Caculate3D, MinX_3D, MaxX_3D, MinY_3D, MaxY_3D, rate);
try
{
painter3D.Draw();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
pictureBox_3D.Image = bitmap;
}
}
private void Button_draw_Click(object sender, EventArgs e)
{
//double minX, minY, maxX, maxY;
//try
//{
// minX = double.Parse(textBox_minX.Text);
// maxX = double.Parse(textBox_maxX.Text);
// minY = double.Parse(textBox_minY.Text);
// maxY = double.Parse(textBox_maxY.Text);
//}
//catch (Exception ex)
//{
// MessageBox.Show(ex.Message);
// return;
//}
if (maxX <= minX || maxY <= minY)
{
MessageBox.Show("数值输入不合法。");
return;
}
//DrawFunction();
Bitmap bitmap = new Bitmap(pictureBox.Width, pictureBox.Height);
Graphics g = Graphics.FromImage(bitmap);
Painter3D painter = new Painter3D(pictureBox, g, mypen, Caculate, minX, maxX, minY, maxY, rate);
try
{
painter.Draw();
pictureBox.Image = bitmap;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
finally
{
g.Dispose();
}
}
