public LineGraph()
{
mGraphPane = new GraphPane();
this.SetStyle(ControlStyles.DoubleBuffer, true);
this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
this.SetStyle(ControlStyles.UserPaint, true);
}
public override void Draw(Graphics g, GraphPane pane)
{
SizeF size;
PointF pos;
float x, y1, y2, y3;
string label;
//Draw Axis Title
if (mTitle.Visible) {
using (Brush brush = new SolidBrush(mTitle.Color)) {
if (mTitle.Orientation == Orientation.Vertical) {
g.RotateTransform(-90);
g.TranslateTransform(-mPane.ClientRectangle.Height, 0);
size = g.MeasureString(mTitle.Text, mTitle.Font);
pos = new PointF(mTitle.Padding, mRect.Left + mRect.Width / 2 - size.Height / 2);
g.DrawString(mTitle.Text, mTitle.Font, brush, pos);
g.ResetTransform();
} else {
size = g.MeasureString(mTitle.Text, mTitle.Font);
pos = new PointF(mRect.Left + (mRect.Width / 2 - size.Width / 2), mRect.Top + mTitle.Padding);
if (mLabels.Visible) pos.Y += (mLabels.Font.Height + (mLabels.Padding * 2));
g.DrawString(mTitle.Text, mTitle.Font, brush, pos);
}
}
}
//Draw Minor Gridlines and Marks
y1 = mRect.Top - mMinorMark.Size;
y2 = mRect.Top;
for (double dx = Minimum; dx <= Maximum; dx += mMinorStep) {
x = mRect.X + (float)((dx - mMinimum) * mScale);
if (mMinorMark.Visible) g.DrawLine(mMinorMark.Pen, x, y1, x, y2);
}
//Draw Major Gridlines, Marks and Labels
y1 = mRect.Top - mMajorMark.Size;
y2 = mRect.Top;
y3 = y2 + mLabels.Padding;
using (Brush b = new SolidBrush(mLabels.Color)) {
for (double dx = Minimum; dx <= Maximum; dx += mMajorStep) {
x = mRect.X + (float)((dx - mMinimum) * mScale);
if (mMajorMark.Visible) g.DrawLine(mMajorMark.Pen, x, y1, x, y2);
if (mLabels.Visible) {
label = FormatLabel(dx);
size = g.MeasureString(label, mLabels.Font);
x = x - size.Width / 2;
if (mPane.ClientRectangle.Contains(x, y3) && mPane.ClientRectangle.Contains(x + size.Width, y3 + size.Height))
g.DrawString(label, mLabels.Font, b, x, y3);
}
}
}
//Draw The Axis
g.DrawLine(mPen, mRect.Left, mRect.Top, mRect.Right, mRect.Top);
}
public override void Draw(Graphics g, GraphPane pane)
{
SizeF size;
PointF pos;
float y, x1, x2, x3;
string label;
//Draw Axis Title
if (mTitle.Visible) {
using (Brush b = new SolidBrush(mTitle.Color)) {
if (mTitle.Orientation == Orientation.Vertical) {
g.RotateTransform(-90);
g.TranslateTransform(-mRect.Height, 0);
size = g.MeasureString(mTitle.Text, mTitle.Font);
pos = new PointF(mRect.Height / 2 - size.Width / 2, mRect.Left + mTitle.Padding);
g.DrawString(mTitle.Text, mTitle.Font, b, pos);
g.ResetTransform();
} else {
size = g.MeasureString(mTitle.Text, mTitle.Font);
pos = new PointF(mRect.Left + mTitle.Padding, mRect.Height / 2 - size.Width / 2);
g.DrawString(mTitle.Text, mTitle.Font, b, pos);
}
}
}
//Draw Minor Grid and Mark
x1 = mRect.Right + mMinorMark.Size;
x2 = x1 - mMinorMark.Size;
for (double dy = Minimum; dy < Maximum; dy += mMinorStep) {
y = mRect.Bottom - (float)((dy - mMinimum) * mScale);
if (mMinorMark.Visible) g.DrawLine(mMinorMark.Pen, x1, y, x2, y);
}
//Draw Major Gridlines, Marks and Labels
x1 = mRect.Right + mMajorMark.Size;
x2 = x1 - mMajorMark.Size;
using (Brush b = new SolidBrush(mLabels.Color)) {
for (double dy = Minimum; dy <= Maximum; dy += mMajorStep) {
y = mRect.Bottom - (float)((dy - mMinimum) * mScale);
if (mMajorMark.Visible) g.DrawLine(mMajorMark.Pen, x1, y, x2, y);
if (mLabels.Visible) {
label = dy.ToString(mLabels.Format);
size = g.MeasureString(label, mLabels.Font);
y = y - size.Height / 2;
x3 = x2 - (size.Width + mLabels.Padding);
if (mPane.ClientRectangle.Contains(x3, y) && mPane.ClientRectangle.Contains(x3, y + size.Height))
g.DrawString(label, mLabels.Font, b, x3, y);
}
}
}
//Draw The Axis
g.DrawLine(mPen, mRect.Right, mRect.Top, mRect.Right, mRect.Bottom);
}
public Axis(GraphPane pane)
{
mPane = pane;
mMaximum = 0;
mMinimum = 0;
mScale = 1.0f;
mTitle = new AxisTitle();
mLabels = new AxisLabels();
mMajorMark = new AxisMark(15.0f);
mMinorMark = new AxisMark(6.0f);
mAxisType = AxisType.Linear;
mPen = SystemPens.ControlText;
}
public void Draw(Graphics g, GraphPane pane)
{
if (!mVisible) return;
double scaleX = pane.XAxis.Scale;
double scaleY = pane.YAxis.Scale;
PointF p1 = new PointF();
PointF p2 = new PointF();
DataPoint prev = null;
using (Pen pen = new Pen(mColor, mWidth)) {
using (Brush brush = new SolidBrush(mColor)) {
pen.DashStyle = this.Style;
foreach (DataPoint p in mPoints) {
if (prev != null) {
p1.X = (float)((prev.X - pane.XAxis.Minimum) * scaleX);
p1.Y = (float)((prev.Y - pane.YAxis.Minimum) * scaleY);
p2.X = (float)((p.X - pane.XAxis.Minimum) * scaleX);
p2.Y = (float)((p.Y - pane.YAxis.Minimum) * scaleY);
if (p1.X > 5000) p1.X = 5000;
if (p1.Y > 5000) p1.Y = 5000;
if (p2.X > 5000) p2.X = 5000;
if (p2.Y > 5000) p2.Y = 5000;
g.DrawLine(pen, p1, p2);
}
switch (mSymbolType) {
case SymbolType.Circle:
p1.X = (float)((p.X - pane.XAxis.Minimum) * scaleX);
p1.Y = (float)((p.Y - pane.YAxis.Minimum) * scaleY);
if (p1.X > 5000) p1.X = 5000;
if (p1.Y > 5000) p1.Y = 5000;
g.FillEllipse(brush, p1.X - 3, p1.Y - 3, 6, 6);
break;
}
prev = p;
}
}
}
}
public XAxis(GraphPane pane)
: base(pane)
{
mTitle.Text = "X Axis";
mLabels.Spacing = 30;
}
public abstract void Draw(Graphics g, GraphPane pane);
public YAxis(GraphPane pane)
: base(pane)
{
mTitle.Text = "Y Axis";
mLabels.Spacing = 10;
}