private void btnEvaluate3_Click(object sender, EventArgs e)
{
try
{
// throw new NotImplementedException();
// if (FormulaHandler != null) mFormula3.ValueChanged -= FormulaHandler;
//if (formula3subscription != null) formula3subscription.Dispose();
using (mFormula3 = ev.Parse(tbExpression3.Text))
{
string v = ev.ConvertToString(mFormula3.ObjectValue);
lblResults3.Text = v;
LogBox3.AppendText(System.DateTime.Now.ToLongTimeString() + ": " + v + "\r\n");
}
//FormulaHandler = new Eval4.Core.ValueChangedEventHandler(mFormula3_ValueChanged);
// mFormula3.ValueChanged += FormulaHandler;
// mFormula3_ValueChanged(null, null);
}
catch (Exception ex)
{
lblResults3.Text = ex.Message;
}
}
private void btnEvaluate3_Click(object sender, EventArgs e)
{
try
{
// throw new NotImplementedException();
// if (FormulaHandler != null) mFormula3.ValueChanged -= FormulaHandler;
//if (formula3subscription != null) formula3subscription.Dispose();
using (mFormula3 = ev.Parse(tbExpression3.Text))
{
string v = ev.ConvertToString(mFormula3.ObjectValue);
lblResults3.Text = v;
LogBox3.AppendText(System.DateTime.Now.ToLongTimeString() + ": " + v + "\r\n");
}
//FormulaHandler = new Eval4.Core.ValueChangedEventHandler(mFormula3_ValueChanged);
// mFormula3.ValueChanged += FormulaHandler;
// mFormula3_ValueChanged(null, null);
}
catch (Exception ex)
{
lblResults3.Text = ex.Message;
}
}
private void btnEvaluate2_Click(object sender, EventArgs e)
{
Eval4.Core.IParsedExpr lCodeR = null;
Eval4.Core.IParsedExpr lCodeG = null;
Eval4.Core.IParsedExpr lCodeB = null;
ev.AddEnvironmentFunctions(typeof(Math));
ev.AddEnvironmentFunctions(new EvalFunctions());
var vX = ev.SetVariable("X", 0.0);
var vY = ev.SetVariable("Y", 0.0);
var vZ = ev.SetVariable("Z", ((double)trackBar1.Value) / trackBar1.Maximum);
BitmapData bmpData = null;
try
{
lCodeR = ev.Parse(tbExpressionRed.Text);
errorProvider1.SetError(tbExpressionRed, lCodeR.Error);
lCodeG = ev.Parse(tbExpressionGreen.Text);
errorProvider1.SetError(tbExpressionGreen, lCodeG.Error);
lCodeB = ev.Parse(tbExpressionBlue.Text);
errorProvider1.SetError(tbExpressionBlue, lCodeB.Error);
PictureBox1.Image = null;
//PictureBox1.Refresh();
//Bitmap bm = (Bitmap)PictureBox1.Image;
if ((bm == null))
{
bm = new Bitmap(256, 256, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
PictureBox1.Image = bm;
}
double mult = (2
* (System.Math.PI / 256));
//double r = 0;
//double g = 0;
//double b = 0;
bmpData = bm.LockBits(new Rectangle(0, 0, 256, 256), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
IntPtr ptr = bmpData.Scan0;
// Get the address of the first line.
int bytes = Math.Abs(bmpData.Stride) * bm.Height;
if (rgbValues == null)
{
rgbValues = new byte[bytes];
}
int rgbValuesIndex = 0;
Stopwatch sw = Stopwatch.StartNew();
for (int Xi = 0; Xi <= 255; Xi++)
{
vX.SetValue((Xi - 128) * mult);
for (int Yi = 0; Yi <= 255; Yi++)
{
vY.SetValue((Yi - 128) * mult);
rgbValues[rgbValuesIndex++] = ZeroTo255(lCodeR.ObjectValue);
rgbValues[rgbValuesIndex++] = ZeroTo255(lCodeG.ObjectValue);
rgbValues[rgbValuesIndex++] = ZeroTo255(lCodeB.ObjectValue);
}
}
Label1.Text = ("196,608 evaluations run in " + (sw.ElapsedMilliseconds + " ms"));
// Copy the RGB values back to the bitmap
System.Runtime.InteropServices.Marshal.Copy(rgbValues, 0, ptr, bytes);
}
catch (Exception ex)
{
Label1.Text = ex.Message;
}
finally
{
if (bmpData != null)
{
bm.UnlockBits(bmpData);
}
if (lCodeR != null)
{
lCodeR.Dispose();
}
if (lCodeG != null)
{
lCodeG.Dispose();
}
if (lCodeB != null)
{
lCodeB.Dispose();
}
PictureBox1.Image = bm;
using (var gr = PictureBox1.CreateGraphics())
{
gr.DrawImageUnscaled(bm, 0, 0);
}
}
}