/// <summary>
/// Graph the equation.
/// </summary>
private void Graph()
{
try {
Equation equation = Equation.ParseEquation(_equation);
Equation xmin = Equation.ParseEquation(_xmin);
Equation xmax = Equation.ParseEquation(_xmax);
_history.Add(_equation);
double min = xmin.GetValue();
double max = xmax.GetValue();
double ymin = Double.NaN;
double ymax = Double.NaN;
_graph = new Graph(250, 250);
double delta = (max - min) / 250.0d;
if (max < min)
{
Debug.Log("Max Less Than Min:" + max + " < " + min);
return;
}
for (double x = min; x <= max; x += delta)
{
double y = equation.GetValue(x);
if (Double.IsNaN(y))
{
continue;
}
if (Double.IsNaN(ymin) || y < ymin)
{
ymin = y;
}
if (Double.IsNaN(ymax) || y > ymax)
{
ymax = y;
}
}
_ymax = ymax;
_ymin = ymin;
_gxmin = min;
_gxmax = max;
Debug.Log("Y min:" + ymin + " max:" + ymax + " delta:" + delta);
_graph.drawGraph(x => equation.GetValue(min + x * delta), ymax, ymin, 250);
_geq = equation;
} catch (ParsingException e) {
Debug.Log(_equation + ":" + e.Message);
_history.Add(_equation + "\n" + e.Message);
}
}
/// <summary>
/// Gets the value after any evaluation and equation parsing.
/// </summary>
/// <returns>The value.</returns>
/// <param name="content">Content.</param>
private string GetValue(string content)
{
if (content.StartsWith("="))
{
string equation = EvalCell(content);
Equation eq = Equation.ParseEquation(equation);
double value = eq.GetValue();
if (value > 1e12d || value < 1e-3d)
{
return(value.ToString("e6"));
}
return(value.ToString("0.####"));
}
return(content);
}
/// <summary>
/// Calculate the equation.
/// </summary>
private void Calculate()
{
double value = 0.0d;
try {
Equation equation = Equation.ParseEquation(_equation);
value = equation.GetValue();
_history.Add(_equation + "=" + value.ToString("G5"));
_windowPos.height = 0.0f;
_windowPos.width = 0.0f;
if (_history.Count > MAX_HISTORY)
{
_history.RemoveRange(0, _history.Count - MAX_HISTORY);
}
} catch (ParsingException e) {
Debug.Log(_equation + ":" + e.Message);
_history.Add(_equation + "\n" + e.Message);
}
}
private void OnGraphWindow(int windowId)
{
bool draw = false;
GUILayout.BeginVertical();
GUILayout.BeginHorizontal();
GUILayout.Label("Lines", _labelStyle);
if (GUILayout.Button("+", _buttonStyle) && _graphLineCnt < _lineColor.Length)
{
_graphLineCnt++;
}
if (GUILayout.Button("-", _buttonStyle) && _graphLineCnt > 1)
{
_graphLineCnt--;
_graphPos.height = 0.0f;
if (_graphLines.ContainsKey(_graphLineCnt))
{
_graphLines.Remove(_graphLineCnt);
}
draw = true;
}
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
bool lockX = GUILayout.Toggle(_lockX, "Lock X");
if (lockX != _lockX)
{
_refreshGraph = true;
_lockX = lockX;
}
bool lockY = GUILayout.Toggle(_lockY, "Lock Y");
if (lockY != _lockY)
{
_refreshGraph = true;
_lockY = lockY;
}
GUILayout.EndHorizontal();
try {
if (_lockX)
{
GUILayout.BeginHorizontal();
string updated = "";
string minPos = "XMin";
GUILayout.Label("Xmin:", _labelStyle, GUILayout.Width(40.0f));
GUI.SetNextControlName(minPos);
updated = GUILayout.TextField(
_graphLineEdit == -1 ? _xmin : GetValue(_xmin), _textFieldStyle,
GUILayout.MinWidth(40.0f));
if (GUI.GetNameOfFocusedControl() == minPos)
{
if (_graphLineEdit == -1 && updated != _xmin)
{
_xmin = updated;
draw = true;
}
_graphLineEdit = -1;
}
GUILayout.Label("Xmax:", _labelStyle, GUILayout.Width(40.0f));
string maxPos = "XMax";
GUI.SetNextControlName(maxPos);
updated = GUILayout.TextField(
_graphLineEdit == -1 ? _xmax : GetValue(_xmax), _textFieldStyle,
GUILayout.MinWidth(40.0f));
if (GUI.GetNameOfFocusedControl() == maxPos)
{
if (_graphLineEdit == -1 && updated != _xmax)
{
_xmax = updated;
draw = true;
}
_graphLineEdit = -1;
}
GUILayout.EndHorizontal();
}
for (int line = 0; line < _graphLineCnt; line++)
{
if (!_graphLines.ContainsKey(line))
{
_graphLines.Add(line, new GraphLine());
_graphLines [line].LineColor = _lineColor [line];
}
GUILayout.BeginHorizontal();
GUIStyle temp = new GUIStyle(_labelStyle);
Texture2D color = new Texture2D(1, 1);
color.wrapMode = TextureWrapMode.Repeat;
color.SetPixel(0, 0, _graphLines [line].LineColor);
color.Apply();
temp.normal.background = color;
GUILayout.Label("", temp, GUILayout.Width(20.0f));
string cPos = "CG" + line;
GUI.SetNextControlName(cPos);
string updated = GUILayout.TextField(
_graphLines [line].Content, _textFieldStyle, GUILayout.MinWidth(150.0f));
if (GUI.GetNameOfFocusedControl() == cPos)
{
if (_graphLineEdit == line)
{
_graphLines [line].Content = updated;
}
_graphLineEdit = line;
}
if (!_lockX)
{
string minPos = "MinG" + line;
GUI.SetNextControlName(minPos);
updated = GUILayout.TextField(
_graphLineEdit == line ? _graphLines [line].XMin : GetValue(_graphLines [line].XMin), _textFieldStyle,
GUILayout.MinWidth(20.0f));
if (GUI.GetNameOfFocusedControl() == minPos)
{
if (_graphLineEdit == line)
{
_graphLines [line].XMin = updated;
}
_graphLineEdit = line;
}
string maxPos = "MaxG" + line;
GUI.SetNextControlName(maxPos);
updated = GUILayout.TextField(
_graphLineEdit == line ? _graphLines [line].XMax : GetValue(_graphLines [line].XMax), _textFieldStyle,
GUILayout.MinWidth(20.0f));
if (GUI.GetNameOfFocusedControl() == maxPos)
{
if (_graphLineEdit == line)
{
_graphLines [line].XMax = updated;
}
_graphLineEdit = line;
}
}
else
{
_graphLines [line].XMin = _xmin;
_graphLines [line].XMax = _xmax;
}
GUILayout.EndHorizontal();
if (_slider > 1e-2d)
{
GUILayout.BeginHorizontal();
GUILayout.Label("X:" + _graphLines[line].x.ToString("0.0###"), _labelStyle);
GUILayout.Label("Y:" + _graphLines[line].y.ToString("0.0###"), _labelStyle);
GUILayout.EndHorizontal();
}
draw = draw || _graphLines [line].Dirty;
}
float slider = GUILayout.HorizontalSlider(_slider, 0.0f, 300.0f);
if (slider != _slider)
{
_slider = slider;
draw = true;
_graphPos.height = 0.0f;
}
if (draw)
{
_ymax = Double.NaN;
_ymin = Double.NaN;
}
if (draw || _refreshGraph)
{
_refreshGraph = false;
_graph.reset();
for (int line = 0; line < _graphLineCnt; line++)
{
_graphLines[line].Dirty = false;
if (_graphLines [line].Content.Length == 0)
{
continue;
}
if (_graphLines [line].XMin.Length == 0)
{
continue;
}
if (_graphLines [line].XMax.Length == 0)
{
continue;
}
Equation equation = Equation.ParseEquation(EvalCell(_graphLines [line].Content));
Equation xmin = Equation.ParseEquation(EvalCell(_graphLines [line].XMin));
Equation xmax = Equation.ParseEquation(EvalCell(_graphLines [line].XMax));
double min = xmin.GetValue();
double max = xmax.GetValue();
double ymin = Double.NaN;
double ymax = Double.NaN;
if (max <= min || Double.IsNaN(max) || Double.IsNaN(min))
{
continue;
}
double delta = (max - min) / 300.0d;
int px = 0;
for (double x = min; x <= max; x += delta)
{
double y = equation.GetValue(x);
if (Double.IsNaN(y))
{
continue;
}
if (Double.IsNaN(ymin) || y < ymin)
{
ymin = y;
}
if (Double.IsNaN(ymax) || y > ymax)
{
ymax = y;
}
if (px == (int)_slider)
{
_graphLines[line].x = x;
_graphLines[line].y = y;
}
px++;
}
if (Double.IsNaN(_ymin) || ymin < _ymin)
{
_ymin = ymin;
_refreshGraph = true;
}
if (Double.IsNaN(_ymax) || ymax > _ymax)
{
_ymax = ymax;
_refreshGraph = true;
}
if (_lockY)
{
ymin = _ymin;
ymax = _ymax;
}
_graph.drawLineOnGraph(x => equation.GetValue(min + x * delta), ymax, ymin, 300,
_graphLines [line].LineColor);
}
if (_slider > 1e-2d)
{
_graph.drawVerticalLine((int)_slider, Color.grey);
}
_graph.Apply();
}
} catch (Exception e) {
Debug.Log(e.Message + "\n" + e.StackTrace);
}
if (_graph != null)
{
GUILayout.Label("Y max:" + _ymax.ToString("G10"), _labelStyle);
GUILayout.Box(_graph.getImage());
GUILayout.Label("Y min:" + _ymin.ToString("G10"), _labelStyle);
}
GUILayout.EndVertical();
GUI.DragWindow();
}