public Bitmap Paint(CoordinatePlane space)
{
Bitmap bitmap = new Bitmap((int)space.Size.X, (int)space.Size.Y);
Graphics draw = Graphics.FromImage(bitmap);
Axis size = space.GridSize;
Axis center = space.Center;
float x1, y1, x2, y2;
List <Axis> .Enumerator enumerator = _dots.GetEnumerator();
enumerator.MoveNext();
x1 = (enumerator.Current.X + center.X) * size.X;
y1 = (center.Y - enumerator.Current.Y) * size.Y;
for (int i = 1; i < _dots.Count; i++)
{
enumerator.MoveNext();
x2 = (enumerator.Current.X + center.X) * size.X;
y2 = (center.Y - enumerator.Current.Y) * size.Y;
try
{
draw.DrawLine(Pen, x1, y1, x2, y2);
}
catch { }
x1 = x2;
y1 = y2;
}
return(bitmap);
}
private void cubicGraph(object sender, EventArgs e)
{
Graphics g = CoordinatePlane.CreateGraphics();
if ((string)cubicColor.SelectedValue == "White")
{
selectedPen = new Pen(Color.White);
}
else if ((string)cubicColor.SelectedValue == "Red")
{
selectedPen = new Pen(Color.Red);
}
else if ((string)cubicColor.SelectedValue == "Green")
{
selectedPen = new Pen(Color.Green);
}
else if ((string)cubicColor.SelectedValue == "Blue")
{
selectedPen = new Pen(Color.Blue);
}
List <PointF> pointList = new List <PointF>(); //create list of points
float xMinR = Convert.ToSingle(xMinRange.Value); //gets min x range and scales it to picture box
float xMaxR = Convert.ToSingle(xMaxRange.Value); //gets max x range and scales it to picture box
float AbsXMinR = Math.Abs(xMinR); //gets absolute value of MinRangeX
float AbsXMaxR = Math.Abs(xMaxR); //gets absolute value of MaxRangeX
float yMinR = Convert.ToSingle(yMinRange.Value); //gets min y range and scales it to picture box
float yMaxR = Convert.ToSingle(yMaxRange.Value); //gets max y range and scales it to picture box
float AbsYMinR = Math.Abs(yMinR);
float AbsYMaxR = Math.Abs(yMaxR);
float scaleModX = (AbsXMinR + AbsXMaxR) / 2;
float scaleModY = (AbsYMinR + AbsYMaxR) / 2;
float scale = CoordinatePlane.Height / (AbsXMaxR + AbsXMinR);
float a = Convert.ToSingle(cubicA.Text) * scale;
float b = Convert.ToSingle(cubicB.Text) * scale;
float c = Convert.ToSingle(cubicC.Text) * scale;
float d = Convert.ToSingle(cubicD.Text) * scale;
//loops through the range of xmin to xmax
for (float x = xMinR; x < xMaxR; x++)
{
//cubic equation a,b,c,d are pulled from user entries
float y = ((a * (x * x * x) + (b * (x * x) + (c * x) + d)));
pointList.Add(new PointF((scale * scaleModX) + x * scale, (scale * AbsXMaxR) - y));
}
PointF[] pointArray = pointList.ToArray();
g.DrawCurve(selectedPen, pointArray);
}
public Bitmap Paint(CoordinatePlane space)
{
Bitmap bitmap = new Bitmap((int)space.Size.X, (int)space.Size.Y);
Graphics draw = Graphics.FromImage(bitmap);
draw.DrawLine(Pen,
space.Center.X * space.GridSize.X, 0,
space.Center.X * space.GridSize.X, space.Size.Y);
draw.DrawLine(Pen, 0,
space.Center.Y * space.GridSize.Y, space.Size.X,
space.Center.Y * space.GridSize.Y);
return(bitmap);
}
public Bitmap Paint(CoordinatePlane space)
{
Bitmap bitmap = new Bitmap((int)space.Size.X, (int)space.Size.Y);
Graphics draw = Graphics.FromImage(bitmap);
for (float i = 0; i < space.Size.X; i += space.GridSize.X)
{
draw.DrawLine(Pen, i, 0, i, space.Size.Y);
}
for (float i = 0; i < space.Size.Y; i += space.GridSize.Y)
{
draw.DrawLine(Pen, 0, i, space.Size.X, i);
}
return(bitmap);
}
private void clearGraph(object sender, EventArgs e)
{
Graphics g = CoordinatePlane.CreateGraphics();
xMin = Convert.ToInt32(xMinRange.Value);
xMax = Convert.ToInt32(xMaxRange.Value);
yMin = Convert.ToInt32(yMinRange.Value);
yMax = Convert.ToInt32(yMaxRange.Value);
SolidBrush paintItBlack = new SolidBrush(Color.Black);
g.FillRectangle(paintItBlack, 0, 0, CoordinatePlane.Width, CoordinatePlane.Height);
//Horizontal Axis
g.DrawLine(whitePen, 0, (float)yMax * (600 / ((float)yMax - (float)yMin)), CoordinatePlane.Width, (float)yMax * (600 / ((float)yMax - (float)yMin)));
//Vertical Axis
g.DrawLine(whitePen, (float)Math.Abs(xMin) * (600 / ((float)xMax - (float)xMin)), 0, (float)Math.Abs(xMin) * (600 / ((float)xMax - (float)xMin)), CoordinatePlane.Height);
}
private void quadGraph(object sender, EventArgs e)
{
Graphics g = CoordinatePlane.CreateGraphics();
if ((string)quadColor.SelectedValue == "White")
{
selectedPen = new Pen(Color.White);
}
else if ((string)quadColor.SelectedValue == "Red")
{
selectedPen = new Pen(Color.Red);
}
else if ((string)quadColor.SelectedValue == "Green")
{
selectedPen = new Pen(Color.Green);
}
else if ((string)quadColor.SelectedValue == "Blue")
{
selectedPen = new Pen(Color.Blue);
}
List <PointF> pointList = new List <PointF>();
float xMinR = Convert.ToSingle(xMinRange.Value); //gets min x range and scales it to picture box
float xMaxR = Convert.ToSingle(xMaxRange.Value); //gets max x range and scales it to picture box
float AbsXMinR = Math.Abs(xMinR);
float AbsXMaxR = Math.Abs(xMaxR);
float scale = CoordinatePlane.Height / (AbsXMaxR + AbsXMinR);
float a = Convert.ToSingle(quadA.Text) * scale;
float b = Convert.ToSingle(quadB.Text) * scale;
float c = Convert.ToSingle(quadC.Text) * scale;
//loops through the range of xmin to xmax
for (float x = xMinR; x < xMaxR; x++)
{
//quad equation a,b,c,d are pulled from user entries
float y = (a * (x * x) + (b * x + c));
pointList.Add(new PointF((scale * AbsXMinR) + x * scale, (scale * AbsXMaxR) - y));
}
PointF[] pointArray = pointList.ToArray();
g.DrawCurve(selectedPen, pointArray);
}
private void circleGraph(object sender, EventArgs e)
{
Graphics g = CoordinatePlane.CreateGraphics();
//handles color selction
if ((string)circleColor.SelectedValue == "White")
{
selectedPen = new Pen(Color.White);
}
else if ((string)circleColor.SelectedValue == "Red")
{
selectedPen = new Pen(Color.Red);
}
else if ((string)circleColor.SelectedValue == "Green")
{
selectedPen = new Pen(Color.Green);
}
else if ((string)circleColor.SelectedValue == "Blue")
{
selectedPen = new Pen(Color.Blue);
}
float xMinR = Convert.ToSingle(xMinRange.Value); //gets min x range and scales it to picture box
float xMaxR = Convert.ToSingle(xMaxRange.Value); //gets max x range and scales it to picture box
float AbsXMinR = Math.Abs(xMinR);
float AbsXMaxR = Math.Abs(xMaxR);
float yMinR = Convert.ToSingle(yMinRange.Value); //gets min x range and scales it to picture box
float yMaxR = Convert.ToSingle(yMaxRange.Value); //gets max x range and scales it to picture box
float AbsYMinR = Math.Abs(yMinR);
float AbsYMaxR = Math.Abs(yMaxR);
float scaleModX = (AbsXMinR + AbsXMaxR) / 2;
float scaleModY = (AbsYMinR + AbsYMaxR) / 2;
float scaleX = CoordinatePlane.Height / (AbsXMaxR + AbsXMinR);
float scaleY = CoordinatePlane.Height / (AbsYMinR + AbsYMaxR);
float h = Convert.ToSingle(circleH.Text) * scaleX;
float k = Convert.ToSingle(circleK.Text) * scaleY;
double tempR = Convert.ToSingle(circleR.Text);
float r = (float)Math.Sqrt(tempR) * scaleX; //scales the radius
g.DrawEllipse(selectedPen, h + (scaleModX * scaleX) - r, (scaleY * scaleModY) - k - r, r * 2, r * 2); //draws ellipse
}
public Bitmap Paint(CoordinatePlane space)
{
Bitmap bitmap = new Bitmap((int)space.Size.X, (int)space.Size.Y);
Graphics draw = Graphics.FromImage(bitmap);
Axis size = space.GridSize;
Axis center = space.Center;
float len = Pen.Width / 2f;
foreach (var dot in _dots)
{
try
{
draw.DrawEllipse(Pen,
((dot.X + center.X) * size.X) - len,
((center.Y - dot.Y) * size.Y) - len,
Pen.Width, Pen.Width);
}
catch { }
}
return(bitmap);
}
private void linearGraph(object sender, EventArgs e)
{
Graphics g = CoordinatePlane.CreateGraphics();
if ((string)linearColor.SelectedValue == "White")
{
selectedPen = new Pen(Color.White);
}
else if ((string)linearColor.SelectedValue == "Red")
{
selectedPen = new Pen(Color.Red);
}
else if ((string)linearColor.SelectedValue == "Green")
{
selectedPen = new Pen(Color.Green);
}
else if ((string)linearColor.SelectedValue == "Blue")
{
selectedPen = new Pen(Color.Blue);
}
float m = float.Parse(linearM.Text);
float b = float.Parse(linearB.Text);
float y = (float)yMax;
float x1;
float x2;
float y1;
float y2;
if (m != 0)
{
y1 = y;
x1 = (y - b) / m;
if (x1 < (float)xMin)
{
x1 = (float)xMin;
y1 = (m * x1) + b;
}
x1 = Convert_X_Point(x1);
y1 = Convert_Y_Point(y1);
//Find the second point
y = (float)yMin;
y2 = y;
x2 = (y - b) / m;
if (x2 > (float)xMax)
{
x2 = (float)xMax;
y2 = (m * x2) + b;
}
x2 = Convert_X_Point(x2);
y2 = Convert_Y_Point(y2);
}
else
{
x1 = 0;
y1 = b;
x2 = CoordinatePlane.Width;
y2 = b;
y1 = Convert_Y_Point(y1);
y2 = Convert_Y_Point(y2);
}
g.DrawLine(selectedPen, x1, y1, x2, y2);
}
