private void GraphScene2D(bool legacy)
{
IExpression xExp = Parse(xt.Text, Settings.xt, Settings.xtReg);
IExpression yExp = Parse(yt.Text, Settings.yt, Settings.ytReg);
double width = CanvasWidth;
double height = CanvasHeight;
double graphToCanvasX = width / (XMax2D - XMin2D);
double graphToCanvasY = height / (YMax2D - YMin2D);
// distance from origin of graph to origin of canvas
double offsetX = -XMin2D;
double offsetY = YMax2D;
PointCollection points = new PointCollection();
for (double t = TMin2D; t <= TMax2D + 0.000001; t += TStep2D)
{
VariableExpression.Define("t", t);
double xGraph = xExp.Evaluate();
double yGraph = yExp.Evaluate();
// Translate the origin based on the max/min parameters (y axis is flipped), then scale to canvas.
double xCanvas = (xGraph + offsetX) * graphToCanvasX;
double yCanvas = (offsetY - yGraph) * graphToCanvasY;
points.Add(ClampedPoint(xCanvas, yCanvas));
}
VariableExpression.Undefine("t");
screenCanvas.Children.Clear();
axisHelper = new DrawAxisHelper(screenCanvas, CanvasSize);
axisHelper.DrawAxes(XMin2D, XMax2D, YMin2D, YMax2D);
Polyline polyLine = new Polyline();
polyLine.Stroke = System.Windows.Media.Brushes.Black;
polyLine.StrokeThickness = 1;
polyLine.Points = points;
screenCanvas.Children.Add(polyLine);
ShowScreenCanvas();
}
private void GraphScene2DP(Canvas c, String inputX, String inputY)
{
IExpression xExp = FunctionParser.Parse(inputX);
IExpression yExp = FunctionParser.Parse(inputY);
double width = CanvasWidth;
double height = CanvasHeight;
double graphToCanvasX = width / (XMax2D - XMin2D);
double graphToCanvasY = height / (YMax2D - YMin2D);
// distance from origin of graph to origin of canvas
double offsetX = -XMin2D;
double offsetY = YMax2D;
PointCollection points = new PointCollection();
for (double t = TMin2D; t <= TMax2D + 0.000001; t += TStep2D)
{
VariableExpression.Define("t", t);
double xGraph = xExp.Evaluate();
double yGraph = yExp.Evaluate();
// Translate the origin based on the max/min parameters (y axis is flipped), then scale to canvas.
double xCanvas = (xGraph + offsetX) * graphToCanvasX;
double yCanvas = (offsetY - yGraph) * graphToCanvasY;
points.Add(ClampedPoint(xCanvas, yCanvas));
}
VariableExpression.Undefine("t");
c.Children.Clear();
DrawAxisHelper axisHelper = new DrawAxisHelper(c, new Size(width, height));
axisHelper.DrawAxes(XMin2D, XMax2D, YMin2D, YMax2D);
Polyline polyLine = new Polyline();
polyLine.Stroke = Brushes.Black;
polyLine.StrokeThickness = 1;
polyLine.Points = points;
c.Children.Add(polyLine);
}
private void GraphScene(bool legacy)
{
IExpression exp = Parse(y.Text, Settings.y, Settings.yReg);
double width = CanvasWidth;
double height = CanvasHeight;
double offsetX = -XMin;
double offsetY = YMax;
double graphToCanvasX = width / (XMax - XMin);
double graphToCanvasY = height / (YMax - YMin);
PointCollection points = new PointCollection();
for (double x = XMin; x < XMax; x += 1 / graphToCanvasX)
{
VariableExpression.Define("x", x);
// Translate the origin based on the max/min parameters (y axis is flipped), then scale to canvas.
double xCanvas = (x + offsetX) * graphToCanvasX;
double yCanvas = (offsetY - exp.Evaluate()) * graphToCanvasY;
points.Add(ClampedPoint(xCanvas, yCanvas));
}
VariableExpression.Undefine("x");
screenCanvas.Children.Clear();
axisHelper = new DrawAxisHelper(screenCanvas, CanvasSize);
axisHelper.DrawAxes(XMin, XMax, YMin, YMax);
Polyline graphLine = new Polyline();
graphLine.Stroke = System.Windows.Media.Brushes.Black;
graphLine.StrokeThickness = 1;
graphLine.Points = points;
screenCanvas.Children.Add(graphLine);
ShowScreenCanvas();
}
private void Show2D(Canvas c, String input)
{
IExpression exp = FunctionParser.Parse(input);
double width = CanvasWidth;
double height = CanvasHeight;
double offsetX = -XMin;
double offsetY = YMax;
double graphToCanvasX = width / (XMax - XMin);
double graphToCanvasY = height / (YMax - YMin);
PointCollection points = new PointCollection();
for (double x = XMin; x < XMax; x += 1 / graphToCanvasX)
{
VariableExpression.Define("x", x);
// Translate the origin based on the max/min parameters (y axis is flipped), then scale to canvas.
double xCanvas = (x + offsetX) * graphToCanvasX;
double yCanvas = (offsetY - exp.Evaluate()) * graphToCanvasY;
points.Add(ClampedPoint(xCanvas, yCanvas));
}
VariableExpression.Undefine("x");
c.Children.Clear();
DrawAxisHelper axisHelper = new DrawAxisHelper(c, new Size(c.Width, c.Height));
axisHelper.DrawAxes(XMin, XMax, YMin, YMax);
Polyline graphLine = new Polyline();
graphLine.Stroke = Brushes.Black;
graphLine.StrokeThickness = 1;
graphLine.Points = points;
c.Children.Add(graphLine);
}
private void GraphScene2DP(Canvas c, String inputX, String inputY)
{
IExpression xExp = FunctionParser.Parse(inputX);
IExpression yExp = FunctionParser.Parse(inputY);
double width = CanvasWidth;
double height = CanvasHeight;
double graphToCanvasX = width / (XMax2D - XMin2D);
double graphToCanvasY = height / (YMax2D - YMin2D);
// distance from origin of graph to origin of canvas
double offsetX = -XMin2D;
double offsetY = YMax2D;
PointCollection points = new PointCollection();
for (double t = TMin2D; t <= TMax2D + 0.000001; t += TStep2D)
{
VariableExpression.Define("t", t);
double xGraph = xExp.Evaluate();
double yGraph = yExp.Evaluate();
// Translate the origin based on the max/min parameters (y axis is flipped), then scale to canvas.
double xCanvas = (xGraph + offsetX) * graphToCanvasX;
double yCanvas = (offsetY - yGraph) * graphToCanvasY;
points.Add(ClampedPoint(xCanvas, yCanvas));
}
VariableExpression.Undefine("t");
c.Children.Clear();
DrawAxisHelper axisHelper = new DrawAxisHelper(c, new Size(width, height));
axisHelper.DrawAxes(XMin2D, XMax2D, YMin2D, YMax2D);
Polyline polyLine = new Polyline();
polyLine.Stroke = Brushes.Black;
polyLine.StrokeThickness = 1;
polyLine.Points = points;
c.Children.Add(polyLine);
}
private void Show2D(Canvas c, String input)
{
IExpression exp = FunctionParser.Parse(input);
double width = CanvasWidth;
double height = CanvasHeight;
double offsetX = -XMin;
double offsetY = YMax;
double graphToCanvasX = width / (XMax - XMin);
double graphToCanvasY = height / (YMax - YMin);
PointCollection points = new PointCollection();
for (double x = XMin; x < XMax; x += 1 / graphToCanvasX)
{
VariableExpression.Define("x", x);
// Translate the origin based on the max/min parameters (y axis is flipped), then scale to canvas.
double xCanvas = (x + offsetX) * graphToCanvasX;
double yCanvas = (offsetY - exp.Evaluate()) * graphToCanvasY;
points.Add(ClampedPoint(xCanvas, yCanvas));
}
VariableExpression.Undefine("x");
c.Children.Clear();
DrawAxisHelper axisHelper = new DrawAxisHelper(c, new Size(c.Width,c.Height));
axisHelper.DrawAxes(XMin, XMax, YMin, YMax);
Polyline graphLine = new Polyline();
graphLine.Stroke = Brushes.Black;
graphLine.StrokeThickness = 1;
graphLine.Points = points;
c.Children.Add(graphLine);
}
