/// <summary>
/// Renders the legend symbol for the series on the specified rendering context.
/// </summary>
/// <param name="rc">
/// The rendering context.
/// </param>
/// <param name="legendBox">
/// The bounding rectangle of the legend box.
/// </param>
public override void RenderLegend(IRenderContext rc, OxyRect legendBox)
{
double xmid = (legendBox.Left + legendBox.Right) / 2;
double yopen = legendBox.Top + ((legendBox.Bottom - legendBox.Top) * 0.7);
double yclose = legendBox.Top + ((legendBox.Bottom - legendBox.Top) * 0.3);
double[] dashArray = LineStyleHelper.GetDashArray(this.LineStyle);
var color = this.GetSelectableColor(this.ActualColor);
rc.DrawLine(
new[] { new ScreenPoint(xmid, legendBox.Top), new ScreenPoint(xmid, legendBox.Bottom) },
color,
this.StrokeThickness,
dashArray,
OxyPenLineJoin.Miter,
true);
rc.DrawLine(
new[] { new ScreenPoint(xmid - this.TickLength, yopen), new ScreenPoint(xmid, yopen) },
color,
this.StrokeThickness,
dashArray,
OxyPenLineJoin.Miter,
true);
rc.DrawLine(
new[] { new ScreenPoint(xmid + this.TickLength, yclose), new ScreenPoint(xmid, yclose) },
color,
this.StrokeThickness,
dashArray,
OxyPenLineJoin.Miter,
true);
}
/// <summary>
/// Draws the clipped line segments.
/// </summary>
/// <param name="rc">The render context.</param>
/// <param name="points">The points.</param>
/// <param name="clippingRectangle">The clipping rectangle.</param>
/// <param name="stroke">The stroke.</param>
/// <param name="strokeThickness">The stroke thickness.</param>
/// <param name="lineStyle">The line style.</param>
/// <param name="lineJoin">The line join.</param>
/// <param name="aliased">if set to <c>true</c> [aliased].</param>
public static void DrawClippedLineSegments(
this IRenderContext rc,
IList <ScreenPoint> points,
OxyRect clippingRectangle,
OxyColor stroke,
double strokeThickness,
LineStyle lineStyle,
OxyPenLineJoin lineJoin,
bool aliased)
{
var clipping = new CohenSutherlandClipping(clippingRectangle.Left, clippingRectangle.Right, clippingRectangle.Top, clippingRectangle.Bottom);
var clippedPoints = new List <ScreenPoint>(points.Count);
for (int i = 0; i + 1 < points.Count; i += 2)
{
var s0 = points[i];
var s1 = points[i + 1];
if (clipping.ClipLine(ref s0, ref s1))
{
clippedPoints.Add(s0);
clippedPoints.Add(s1);
}
}
rc.DrawLineSegments(clippedPoints, stroke, strokeThickness, LineStyleHelper.GetDashArray(lineStyle), lineJoin, aliased);
}
/// <summary>
/// Initializes a new instance of the <see cref="OxyPen"/> class.
/// </summary>
/// <param name="color">
/// The color.
/// </param>
/// <param name="thickness">
/// The thickness.
/// </param>
/// <param name="lineStyle">
/// The line style.
/// </param>
/// <param name="lineJoin">
/// The line join.
/// </param>
public OxyPen(
OxyColor color,
double thickness = 1.0,
LineStyle lineStyle = LineStyle.Solid,
OxyPenLineJoin lineJoin = OxyPenLineJoin.Miter)
{
this.Color = color;
this.Thickness = thickness;
this.DashArray = LineStyleHelper.GetDashArray(lineStyle);
this.LineStyle = lineStyle;
this.LineJoin = lineJoin;
}
/// <summary>
/// The draw clipped polygon.
/// </summary>
/// <param name="rc">
/// The render context.
/// </param>
/// <param name="points">
/// The points.
/// </param>
/// <param name="clippingRectangle">
/// The clipping rectangle.
/// </param>
/// <param name="minDistSquared">
/// The min dist squared.
/// </param>
/// <param name="fill">
/// The fill.
/// </param>
/// <param name="stroke">
/// The stroke.
/// </param>
/// <param name="strokeThickness">
/// The stroke thickness.
/// </param>
/// <param name="lineStyle">
/// The line style.
/// </param>
/// <param name="lineJoin">
/// The line join.
/// </param>
/// <param name="aliased">
/// The aliased.
/// </param>
public static void DrawClippedPolygon(
this IRenderContext rc,
IList <ScreenPoint> points,
OxyRect clippingRectangle,
double minDistSquared,
OxyColor fill,
OxyColor stroke,
double strokeThickness = 1.0,
LineStyle lineStyle = LineStyle.Solid,
OxyPenLineJoin lineJoin = OxyPenLineJoin.Miter,
bool aliased = false)
{
var clippedPoints = SutherlandHodgmanClipping.ClipPolygon(clippingRectangle, points);
rc.DrawPolygon(
clippedPoints, fill, stroke, strokeThickness, LineStyleHelper.GetDashArray(lineStyle), lineJoin, aliased);
}
/// <summary>
/// Renders the legend symbol for the line series on the
/// specified rendering context.
/// </summary>
/// <param name="rc">
/// The rendering context.
/// </param>
/// <param name="legendBox">
/// The bounding rectangle of the legend box.
/// </param>
public override void RenderLegend(IRenderContext rc, OxyRect legendBox)
{
double y0 = (legendBox.Top * 0.2) + (legendBox.Bottom * 0.8);
double y1 = (legendBox.Top * 0.4) + (legendBox.Bottom * 0.6);
double y2 = (legendBox.Top * 0.8) + (legendBox.Bottom * 0.2);
var pts0 = new[] { new ScreenPoint(legendBox.Left, y0), new ScreenPoint(legendBox.Right, y0) };
var pts1 = new[] { new ScreenPoint(legendBox.Right, y2), new ScreenPoint(legendBox.Left, y1) };
var pts = new List <ScreenPoint>();
pts.AddRange(pts0);
pts.AddRange(pts1);
var color = this.GetSelectableColor(this.ActualColor);
rc.DrawLine(pts0, color, this.StrokeThickness, LineStyleHelper.GetDashArray(this.ActualLineStyle));
rc.DrawLine(pts1, color, this.StrokeThickness, LineStyleHelper.GetDashArray(this.ActualLineStyle));
rc.DrawPolygon(pts, this.GetSelectableFillColor(this.Fill), null);
}
/// <summary>
/// Renders the legend symbol for the series on the specified rendering context.
/// </summary>
/// <param name="rc">
/// The rendering context.
/// </param>
/// <param name="legendBox">
/// The bounding rectangle of the legend box.
/// </param>
public override void RenderLegend(IRenderContext rc, OxyRect legendBox)
{
double xmid = (legendBox.Left + legendBox.Right) / 2;
double yopen = legendBox.Top + ((legendBox.Bottom - legendBox.Top) * 0.7);
double yclose = legendBox.Top + ((legendBox.Bottom - legendBox.Top) * 0.3);
double[] dashArray = LineStyleHelper.GetDashArray(this.LineStyle);
rc.DrawLine(
new[] { new ScreenPoint(xmid, legendBox.Top), new ScreenPoint(xmid, legendBox.Bottom) },
this.GetSelectableColor(this.ActualColor),
this.StrokeThickness,
dashArray,
OxyPenLineJoin.Miter,
true);
rc.DrawRectangleAsPolygon(
new OxyRect(xmid - (this.CandleWidth * 0.5), yclose, this.CandleWidth, yopen - yclose),
this.GetSelectableFillColor(this.ActualColor),
this.GetSelectableColor(this.ActualColor),
this.StrokeThickness);
}
/// <summary>
/// Renders the legend symbol on the specified rendering context.
/// </summary>
/// <param name="rc">
/// The rendering context.
/// </param>
/// <param name="legendBox">
/// The legend rectangle.
/// </param>
public override void RenderLegend(IRenderContext rc, OxyRect legendBox)
{
double xmid = (legendBox.Left + legendBox.Right) / 2;
double ybottom = legendBox.Top + ((legendBox.Bottom - legendBox.Top) * 0.7);
double ytop = legendBox.Top + ((legendBox.Bottom - legendBox.Top) * 0.3);
double ymid = (ybottom + ytop) * 0.5;
var halfBoxWidth = legendBox.Width * 0.24;
var halfWhiskerWidth = halfBoxWidth * this.WhiskerWidth;
double strokeThickness = 1;
var strokeColor = this.GetSelectableColor(this.Stroke);
var fillColor = this.GetSelectableFillColor(this.Fill);
rc.DrawLine(
new[] { new ScreenPoint(xmid, legendBox.Top), new ScreenPoint(xmid, ytop) },
strokeColor,
strokeThickness,
LineStyleHelper.GetDashArray(LineStyle.Solid),
OxyPenLineJoin.Miter,
true);
rc.DrawLine(
new[] { new ScreenPoint(xmid, ybottom), new ScreenPoint(xmid, legendBox.Bottom) },
strokeColor,
strokeThickness,
LineStyleHelper.GetDashArray(LineStyle.Solid),
OxyPenLineJoin.Miter,
true);
if (this.WhiskerWidth > 0)
{
// top whisker
rc.DrawLine(
new[]
{
new ScreenPoint(xmid - halfWhiskerWidth - 1, legendBox.Bottom),
new ScreenPoint(xmid + halfWhiskerWidth, legendBox.Bottom)
},
strokeColor,
strokeThickness,
LineStyleHelper.GetDashArray(LineStyle.Solid),
OxyPenLineJoin.Miter,
true);
// bottom whisker
rc.DrawLine(
new[]
{
new ScreenPoint(xmid - halfWhiskerWidth - 1, legendBox.Top),
new ScreenPoint(xmid + halfWhiskerWidth, legendBox.Top)
},
strokeColor,
strokeThickness,
LineStyleHelper.GetDashArray(LineStyle.Solid),
OxyPenLineJoin.Miter,
true);
}
if (this.ShowBox)
{
// box
rc.DrawRectangleAsPolygon(
new OxyRect(xmid - halfBoxWidth, ytop, 2 * halfBoxWidth, ybottom - ytop),
fillColor,
strokeColor,
strokeThickness);
}
// median
if (!this.ShowMedianAsDot)
{
rc.DrawLine(
new[] { new ScreenPoint(xmid - halfBoxWidth, ymid), new ScreenPoint(xmid + halfBoxWidth, ymid) },
strokeColor,
strokeThickness * this.MedianThickness,
LineStyleHelper.GetDashArray(LineStyle.Solid),
OxyPenLineJoin.Miter,
true);
}
else
{
var ellipseRect = new OxyRect(
xmid - this.MedianPointSize,
ymid - this.MedianPointSize,
this.MedianPointSize * 2,
this.MedianPointSize * 2);
rc.DrawEllipse(ellipseRect, fillColor, null);
}
}
/// <summary>
/// Draws the clipped line.
/// </summary>
/// <param name="rc">The render context.</param>
/// <param name="points">The points.</param>
/// <param name="clippingRectangle">The clipping rectangle.</param>
/// <param name="minDistSquared">The min dist squared.</param>
/// <param name="stroke">The stroke.</param>
/// <param name="strokeThickness">The stroke thickness.</param>
/// <param name="lineStyle">The line style.</param>
/// <param name="lineJoin">The line join.</param>
/// <param name="aliased">if set to <c>true</c> [aliased].</param>
/// <param name="pointsRendered">The points rendered callback.</param>
public static void DrawClippedLine(
this IRenderContext rc,
IList <ScreenPoint> points,
OxyRect clippingRectangle,
double minDistSquared,
OxyColor stroke,
double strokeThickness,
LineStyle lineStyle,
OxyPenLineJoin lineJoin,
bool aliased,
Action <IList <ScreenPoint> > pointsRendered = null)
{
var clipping = new CohenSutherlandClipping(
clippingRectangle.Left, clippingRectangle.Right, clippingRectangle.Top, clippingRectangle.Bottom);
var pts = new List <ScreenPoint>();
int n = points.Count;
if (n > 0)
{
if (n == 1)
{
pts.Add(points[0]);
}
var last = points[0];
for (int i = 1; i < n; i++)
{
var s0 = points[i - 1];
var s1 = points[i];
// Clipped version of this and next point.
var s0c = s0;
var s1c = s1;
bool isInside = clipping.ClipLine(ref s0c, ref s1c);
s0 = s1;
if (!isInside)
{
// keep the previous coordinate
continue;
}
// render from s0c-s1c
double dx = s1c.x - last.x;
double dy = s1c.y - last.y;
if (dx * dx + dy * dy > minDistSquared || i == 1 || i == n - 1)
{
if (!s0c.Equals(last) || i == 1)
{
pts.Add(s0c);
}
pts.Add(s1c);
last = s1c;
}
// render the line if we are leaving the clipping region););
if (!clipping.IsInside(s1))
{
if (pts.Count > 0)
{
rc.DrawLine(
pts, stroke, strokeThickness, LineStyleHelper.GetDashArray(lineStyle), lineJoin, aliased);
if (pointsRendered != null)
{
pointsRendered(pts);
}
pts = new List <ScreenPoint>();
}
}
}
// Check if the line contains two points and they are at the same point
if (pts.Count == 2)
{
if (pts[0].DistanceTo(pts[1]) < 1)
{
// Modify to a small horizontal line to make sure it is being rendered
pts[1] = new ScreenPoint(pts[0].X + 1, pts[0].Y);
pts[0] = new ScreenPoint(pts[0].X - 1, pts[0].Y);
}
}
// Check if the line contains a single point
if (pts.Count == 1)
{
// Add a second point to make sure the line is being rendered as a small dot
pts.Add(new ScreenPoint(pts[0].X + 1, pts[0].Y));
pts[0] = new ScreenPoint(pts[0].X - 1, pts[0].Y);
}
if (pts.Count > 0)
{
rc.DrawLine(pts, stroke, strokeThickness, LineStyleHelper.GetDashArray(lineStyle), lineJoin, aliased);
// Execute the 'callback'.
if (pointsRendered != null)
{
pointsRendered(pts);
}
}
}
}
/// <summary>
/// Renders the legend symbol for the line series on the
/// specified rendering context.
/// </summary>
/// <param name="rc">
/// The rendering context.
/// </param>
/// <param name="legendBox">
/// The bounding rectangle of the legend box.
/// </param>
public override void RenderLegend(IRenderContext rc, OxyRect legendBox)
{
double xmid = (legendBox.Left + legendBox.Right) / 2;
double ymid = (legendBox.Top + legendBox.Bottom) / 2;
var pts = new[] { new ScreenPoint(legendBox.Left, ymid), new ScreenPoint(legendBox.Right, ymid) };
rc.DrawLine(pts, this.GetSelectableColor(this.ActualColor), this.StrokeThickness, LineStyleHelper.GetDashArray(this.ActualLineStyle));
var midpt = new ScreenPoint(xmid, ymid);
rc.DrawMarker(
midpt,
legendBox,
this.MarkerType,
this.MarkerOutline,
this.MarkerSize,
this.MarkerFill,
this.MarkerStroke,
this.MarkerStrokeThickness);
}
