public void Render(PlotDimensions dims, Bitmap bmp, bool lowQuality = false) { PointF[] points = new PointF[xs.Length]; for (int i = 0; i < xs.Length; i++) { points[i] = new PointF(dims.GetPixelX(xs[i]), dims.GetPixelY(ys[i])); } using (Graphics gfx = GDI.Graphics(bmp, lowQuality)) using (Brush fillBrush = GDI.Brush(Color.FromArgb((byte)(255 * fillAlpha), fillColor))) using (Pen outlinePen = GDI.Pen(lineColor, (float)lineWidth)) { if (fill) { gfx.FillPolygon(fillBrush, points); } if (lineWidth > 0) { gfx.DrawPolygon(outlinePen, points); } } }
public static void Box(PlotDimensions dims, Bitmap bmp, bool lowQuality, Population pop, Random rand, double popLeft, double popWidth, Color color, Position position, BoxFormat boxFormat, HorizontalAlignment errorAlignment = HorizontalAlignment.Right) { // adjust edges to accomodate special positions if (position == Position.Hide) { return; } if (position == Position.Left || position == Position.Right) { popWidth /= 2; } if (position == Position.Right) { popLeft += popWidth; } double errorMaxPx, errorMinPx; double yPxTop, yPxBase; double yPx; if (boxFormat == BoxFormat.StdevStderrMean) { errorMaxPx = dims.GetPixelY(pop.mean + pop.stDev); errorMinPx = dims.GetPixelY(pop.mean - pop.stDev); yPxTop = dims.GetPixelY(pop.mean + pop.stdErr); yPxBase = dims.GetPixelY(pop.mean - pop.stdErr); yPx = dims.GetPixelY(pop.mean); } else if (boxFormat == BoxFormat.OutlierQuartileMedian) { errorMaxPx = dims.GetPixelY(pop.maxNonOutlier); errorMinPx = dims.GetPixelY(pop.minNonOutlier); yPxTop = dims.GetPixelY(pop.Q3); yPxBase = dims.GetPixelY(pop.Q1); yPx = dims.GetPixelY(pop.median); } else { throw new NotImplementedException(); } // make cap width a fraction of available space double capWidthFrac = .38; double capWidth = popWidth * capWidthFrac; // contract edges slightly to encourage padding between elements double edgePaddingFrac = 0.2; popLeft += popWidth * edgePaddingFrac; popWidth -= (popWidth * edgePaddingFrac) * 2; double leftPx = dims.GetPixelX(popLeft); double rightPx = dims.GetPixelX(popLeft + popWidth); RectangleF rect = new RectangleF( x: (float)leftPx, y: (float)yPxTop, width: (float)(rightPx - leftPx), height: (float)(yPxBase - yPxTop)); // determine location of errorbars and caps double capPx1, capPx2, errorPxX; switch (errorAlignment) { case HorizontalAlignment.Center: double centerX = popLeft + popWidth / 2; errorPxX = dims.GetPixelX(centerX); capPx1 = dims.GetPixelX(centerX - capWidth / 2); capPx2 = dims.GetPixelX(centerX + capWidth / 2); break; case HorizontalAlignment.Right: errorPxX = dims.GetPixelX(popLeft + popWidth); capPx1 = dims.GetPixelX(popLeft + popWidth - capWidth / 2); capPx2 = dims.GetPixelX(popLeft + popWidth); break; case HorizontalAlignment.Left: errorPxX = dims.GetPixelX(popLeft); capPx1 = dims.GetPixelX(popLeft); capPx2 = dims.GetPixelX(popLeft + capWidth / 2); break; default: throw new NotImplementedException(); } using (Graphics gfx = GDI.Graphics(bmp, lowQuality)) using (Pen pen = GDI.Pen(Color.Black)) using (Brush brush = GDI.Brush(color)) { // draw the box gfx.FillRectangle(brush, rect.X, rect.Y, rect.Width, rect.Height); gfx.DrawRectangle(pen, rect.X, rect.Y, rect.Width, rect.Height); // draw the line in the center gfx.DrawLine(pen, rect.X, (float)yPx, rect.X + rect.Width, (float)yPx); // draw errorbars and caps gfx.DrawLine(pen, (float)errorPxX, (float)errorMinPx, (float)errorPxX, rect.Y + rect.Height); gfx.DrawLine(pen, (float)errorPxX, (float)errorMaxPx, (float)errorPxX, rect.Y); gfx.DrawLine(pen, (float)capPx1, (float)errorMinPx, (float)capPx2, (float)errorMinPx); gfx.DrawLine(pen, (float)capPx1, (float)errorMaxPx, (float)capPx2, (float)errorMaxPx); } }
public static void Bar(PlotDimensions dims, Bitmap bmp, bool lowQuality, Population pop, Random rand, double popLeft, double popWidth, Color color, Position position, bool useStdErr = false) { // adjust edges to accomodate special positions if (position == Position.Hide) { return; } if (position == Position.Left || position == Position.Right) { popWidth /= 2; } if (position == Position.Right) { popLeft += popWidth; } // determine the center point and calculate bounds double centerX = popLeft + popWidth / 2; double xPx = dims.GetPixelX(centerX); double yPxTop = dims.GetPixelY(pop.mean); double yPxBase = dims.GetPixelY(0); double errorMaxPx, errorMinPx; if (useStdErr) { errorMaxPx = dims.GetPixelY(pop.mean + pop.stdErr); errorMinPx = dims.GetPixelY(pop.mean - pop.stdErr); } else { errorMaxPx = dims.GetPixelY(pop.mean + pop.stDev); errorMinPx = dims.GetPixelY(pop.mean - pop.stDev); } // make cap width a fraction of available space double capWidthFrac = .38; double capWidth = popWidth * capWidthFrac; double capPx1 = dims.GetPixelX(centerX - capWidth / 2); double capPx2 = dims.GetPixelX(centerX + capWidth / 2); // contract edges slightly to encourage padding between elements double edgePaddingFrac = 0.2; popLeft += popWidth * edgePaddingFrac; popWidth -= (popWidth * edgePaddingFrac) * 2; double leftPx = dims.GetPixelX(popLeft); double rightPx = dims.GetPixelX(popLeft + popWidth); RectangleF rect = new RectangleF((float)leftPx, (float)yPxTop, (float)(rightPx - leftPx), (float)(yPxBase - yPxTop)); using (Graphics gfx = GDI.Graphics(bmp, lowQuality)) using (Pen pen = GDI.Pen(Color.Black)) using (Brush brush = GDI.Brush(color)) { gfx.FillRectangle(brush, rect.X, rect.Y, rect.Width, rect.Height); gfx.DrawRectangle(pen, rect.X, rect.Y, rect.Width, rect.Height); gfx.DrawLine(pen, (float)xPx, (float)errorMinPx, (float)xPx, (float)errorMaxPx); gfx.DrawLine(pen, (float)capPx1, (float)errorMinPx, (float)capPx2, (float)errorMinPx); gfx.DrawLine(pen, (float)capPx1, (float)errorMaxPx, (float)capPx2, (float)errorMaxPx); } }
public void Render(PlotDimensions dims, Bitmap bmp, bool lowQuality = false) { using (Graphics gfx = GDI.Graphics(bmp, lowQuality)) using (Pen backgroundPen = GDI.Pen(dataBackgroundColor)) using (Pen outlinePen = GDI.Pen(outlineColor, outlineSize)) using (Brush brush = GDI.Brush(Color.Black)) using (Brush fontBrush = GDI.Brush(centerTextColor)) using (Font sliceFont = GDI.Font(null, sliceFontSize)) using (Font centerFont = GDI.Font(null, centerFontSize)) using (StringFormat sfCenter = new StringFormat() { LineAlignment = StringAlignment.Center, Alignment = StringAlignment.Center }) { double[] proportions = values.Select(x => x / values.Sum()).ToArray(); AxisLimits2D limits = GetLimits(); double centreX = limits.xCenter; double centreY = limits.yCenter; float diameterPixels = .9f * Math.Min(dims.DataWidth, dims.DataHeight); // record label details and draw them after slices to prevent cover-ups double[] labelXs = new double[values.Length]; double[] labelYs = new double[values.Length]; string[] labelStrings = new string[values.Length]; RectangleF boundingRectangle = new RectangleF( dims.GetPixelX(centreX) - diameterPixels / 2, dims.GetPixelY(centreY) - diameterPixels / 2, diameterPixels, diameterPixels); if (donutSize > 0) { GraphicsPath graphicsPath = new GraphicsPath(); float donutDiameterPixels = (float)donutSize * diameterPixels; RectangleF donutHoleBoundingRectangle = new RectangleF( dims.GetPixelX(centreX) - donutDiameterPixels / 2, dims.GetPixelY(centreY) - donutDiameterPixels / 2, donutDiameterPixels, donutDiameterPixels); graphicsPath.AddEllipse(donutHoleBoundingRectangle); Region excludedRegion = new Region(graphicsPath); gfx.ExcludeClip(excludedRegion); } double start = -90; for (int i = 0; i < values.Length; i++) { // determine where the slice is to be drawn double sweep = proportions[i] * 360; double sweepOffset = explodedChart ? -1 : 0; double angle = (Math.PI / 180) * ((sweep + 2 * start) / 2); double xOffset = explodedChart ? 3 * Math.Cos(angle) : 0; double yOffset = explodedChart ? 3 * Math.Sin(angle) : 0; // record where and what to label the slice double sliceLabelR = 0.35 * diameterPixels; labelXs[i] = (boundingRectangle.X + diameterPixels / 2 + xOffset + Math.Cos(angle) * sliceLabelR); labelYs[i] = (boundingRectangle.Y + diameterPixels / 2 + yOffset + Math.Sin(angle) * sliceLabelR); string sliceLabelValue = (showValues) ? $"{values[i]}" : ""; string sliceLabelPercentage = showPercentages ? $"{proportions[i] * 100:f1}%" : ""; string sliceLabelName = (showLabels && groupNames != null) ? groupNames[i] : ""; labelStrings[i] = $"{sliceLabelValue}\n{sliceLabelPercentage}\n{sliceLabelName}".Trim(); ((SolidBrush)brush).Color = colors[i]; gfx.FillPie(brush: brush, x: (int)(boundingRectangle.X + xOffset), y: (int)(boundingRectangle.Y + yOffset), width: boundingRectangle.Width, height: boundingRectangle.Height, startAngle: (float)start, sweepAngle: (float)(sweep + sweepOffset)); if (explodedChart) { gfx.DrawPie( pen: backgroundPen, x: (int)(boundingRectangle.X + xOffset), y: (int)(boundingRectangle.Y + yOffset), width: boundingRectangle.Width, height: boundingRectangle.Height, startAngle: (float)start, sweepAngle: (float)(sweep + sweepOffset)); } start += sweep; } ((SolidBrush)brush).Color = Color.White; for (int i = 0; i < values.Length; i++) { if (!string.IsNullOrWhiteSpace(labelStrings[i])) { gfx.DrawString(labelStrings[i], sliceFont, brush, (float)labelXs[i], (float)labelYs[i], sfCenter); } } if (outlineSize > 0) { gfx.DrawEllipse( outlinePen, boundingRectangle.X, boundingRectangle.Y, boundingRectangle.Width, boundingRectangle.Height); } gfx.ResetClip(); if (centerText != null) { gfx.DrawString(centerText, centerFont, fontBrush, dims.GetPixelX(0), dims.GetPixelY(0), sfCenter); } if (explodedChart) { // draw a background-colored circle around the perimeter to make it look like all pieces are the same size backgroundPen.Width = 20; gfx.DrawEllipse( pen: backgroundPen, x: boundingRectangle.X, y: boundingRectangle.Y, width: boundingRectangle.Width, height: boundingRectangle.Height); } } }
private void RenderAxis(PlotDimensions dims, Bitmap bmp, bool lowQuality) { using (Graphics gfx = GDI.Graphics(bmp, lowQuality)) using (Pen pen = GDI.Pen(Color.Black)) using (Brush brush = GDI.Brush(Color.Black)) using (Font axisFont = GDI.Font(null, 12)) using (StringFormat right_centre = new StringFormat() { Alignment = StringAlignment.Far, LineAlignment = StringAlignment.Center }) using (StringFormat centre_top = new StringFormat() { Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Near }) { double offset = -2; double minScale = Math.Min(dims.PxPerUnitX, dims.PxPerUnitY); gfx.DrawString($"{AxisOffsets[0]:f3}", axisFont, brush, dims.GetPixelX(0), dims.GetPixelY(offset), centre_top); gfx.DrawString($"{AxisOffsets[0] + AxisMultipliers[0]:f3}", axisFont, brush, new PointF((float)((width * minScale) + dims.GetPixelX(0)), dims.GetPixelY(offset)), centre_top); gfx.DrawString($"{AxisOffsets[1]:f3}", axisFont, brush, dims.GetPixelX(offset), dims.GetPixelY(0), right_centre); gfx.DrawString($"{AxisOffsets[1] + AxisMultipliers[1]:f3}", axisFont, brush, new PointF(dims.GetPixelX(offset), dims.GetPixelY(0) - (float)(height * minScale)), right_centre); } }
public void Render(PlotDimensions dims, Bitmap bmp, bool lowQuality = false) { int numGroups = normalized.GetUpperBound(0) + 1; int numCategories = normalized.GetUpperBound(1) + 1; double sweepAngle = 2 * Math.PI / numCategories; double minScale = new double[] { dims.PxPerUnitX, dims.PxPerUnitX }.Min(); PointF origin = new PointF(dims.GetPixelX(0), dims.GetPixelY(0)); double[] radii = new double[] { 0.25 * minScale, 0.5 * minScale, 1 * minScale }; using (Graphics gfx = GDI.Graphics(bmp, lowQuality)) using (Pen pen = GDI.Pen(webColor)) using (Brush brush = GDI.Brush(Color.Black)) using (StringFormat sf = new StringFormat() { LineAlignment = StringAlignment.Center }) using (Font font = GDI.Font()) { for (int i = 0; i < radii.Length; i++) { gfx.DrawEllipse(pen, (int)(origin.X - radii[i]), (int)(origin.Y - radii[i]), (int)(radii[i] * 2), (int)(radii[i] * 2)); StringFormat stringFormat = new StringFormat() { Alignment = StringAlignment.Near, LineAlignment = StringAlignment.Far }; gfx.DrawString($"{normalizedMax * radii[i] / minScale:f1}", new Font(FontFamily.GenericSansSerif, 8), brush, origin.X, (float)(-radii[i] + origin.Y), stringFormat); } for (int i = 0; i < numCategories; i++) { PointF destination = new PointF((float)(1.1 * Math.Cos(sweepAngle * i - Math.PI / 2) * minScale + origin.X), (float)(1.1 * Math.Sin(sweepAngle * i - Math.PI / 2) * minScale + origin.Y)); gfx.DrawLine(pen, origin, destination); if (categoryNames != null) { PointF textDestination = new PointF( (float)(1.3 * Math.Cos(sweepAngle * i - Math.PI / 2) * minScale + origin.X), (float)(1.3 * Math.Sin(sweepAngle * i - Math.PI / 2) * minScale + origin.Y)); if (Math.Abs(textDestination.X - origin.X) < 0.1) { sf.Alignment = StringAlignment.Center; } else { sf.Alignment = dims.GetCoordinateX(textDestination.X) < 0 ? StringAlignment.Far : StringAlignment.Near; } gfx.DrawString(categoryNames[i], font, brush, textDestination, sf); } } for (int i = 0; i < numGroups; i++) { PointF[] points = new PointF[numCategories]; for (int j = 0; j < numCategories; j++) { points[j] = new PointF( (float)(normalized[i, j] * Math.Cos(sweepAngle * j - Math.PI / 2) * minScale + origin.X), (float)(normalized[i, j] * Math.Sin(sweepAngle * j - Math.PI / 2) * minScale + origin.Y)); } ((SolidBrush)brush).Color = fillColors[i]; pen.Color = lineColors[i]; gfx.FillPolygon(brush, points); gfx.DrawPolygon(pen, points); } } }