public void drowLine(Equation equation)
{
DLLLandAndDoig.Point start = new DLLLandAndDoig.Point(0, 0);
DLLLandAndDoig.Point end = new DLLLandAndDoig.Point(0, 0);
Equation axesX = new Equation(1, 0, ">=", 0);
Equation axesY = new Equation(0, 1, ">=", 0);
if (Utils.IsLineParallel(equation, axesX))
{
start.X = equation.solveY(0);
start.Y = 0;
end.X = equation.solveY(0);
end.Y = _max;
}
else if (Utils.IsLineParallel(equation, axesY))
{
start.X = 0;
start.Y = equation.solveX(0);
end.X = _max;
end.Y = equation.solveX(0);
}
else
{
start.Y = equation.solveY(0);
if (start.Y > _max)
{
reScale(_scale + 1);
drowLine(equation);
return;
}
end.X = equation.solveX(0);
if (start.Y == end.X)
{
end.X = equation.solveX(_max);
end.Y = _max;
double temp = equation.solveY(_max);
if (temp < end.X)
{
end.Y = temp;
end.X = _max;
}
}
if (end.X > _max)
{
reScale(_scale + 0.5);
drowLine(equation);
return;
}
}
drowLine(start, end, equation.toString());
}
public void handleSelectEvent(SelectBlockObject obj)
{
_func.Clear();
reScale(1);
foreach (var t in obj.Limits)
{
drowLine(t);
}
if (obj.Limit != null)
{
drowLine(obj.Limit);
}
DLLLandAndDoig.Point start = new DLLLandAndDoig.Point(0, 0);
DLLLandAndDoig.Point end = new DLLLandAndDoig.Point(obj.Func.X, obj.Func.Y);
drowLine(start, end, obj.Func.toString());
}
public CoordinatePlane(Canvas canvas, DLLLandAndDoig.Point start, int axesLength)
{
_axesLines = new List <Line>();
_axesLabels = new List <Label>();
_grid = new List <Line>();
_divisionLabels = new List <Label>();
_divisionLines = new List <Line>();
_func = new List <Equation>();
_funcLines = new List <Line>();
_funcLabels = new List <Label>();
_canvas = canvas;
_start = start;
_axesLength = axesLength;
drowGrid();
drowAxes();
reScale(1);
}
public void drowLine(DLLLandAndDoig.Point start, DLLLandAndDoig.Point end, string text)
{
Line line = new Line();
line.X1 = _start.X + ((start.X / _scale) * _step);
line.Y1 = (_axesLength - ((start.Y / _scale) * _step)) - 5;
line.X2 = _start.X + (end.X / _scale) * _step;
line.Y2 = (_axesLength - ((end.Y / _scale) * _step)) - 5;
line.Stroke = _colorFunc;
_funcLines.Add(line);
_canvas.Children.Add(line);
Label labelX = new Label();
labelX.Content = text;
Canvas.SetLeft(labelX, (line.X1 + line.X2) / 2);
Canvas.SetTop(labelX, (line.Y1 + line.Y2) / 2);
labelX.Foreground = _colorFuncLabel;
_divisionLabels.Add(labelX);
_canvas.Children.Add(labelX);
}