public static Bitmap DesignerModeBitmap(Size size, bool drawArrows = false)
{
Bitmap bmp = new Bitmap(size.Width, size.Height);
Graphics gfx = Graphics.FromImage(bmp);
gfx.Clear(ColorTranslator.FromHtml("#003366"));
Brush brushLogo = new SolidBrush(ColorTranslator.FromHtml("#FFFFFF"));
Brush brushMeasurements = new SolidBrush(ColorTranslator.FromHtml("#006699"));
Pen pen = new Pen(ColorTranslator.FromHtml("#006699"), 3);
pen.StartCap = System.Drawing.Drawing2D.LineCap.Round;
pen.EndCap = System.Drawing.Drawing2D.LineCap.Round;
float arrowSize = 7;
float padding = 3;
// logo
FontFamily ff = new FontFamily(Fonts.GetDefaultFontName());
gfx.DrawString("ScottPlot", new Font(ff, 24, FontStyle.Bold), brushLogo, 10, 10);
var titleSize = GDI.MeasureString(gfx, "ScottPlot", new Font(ff, 24, FontStyle.Bold));
gfx.DrawString($"version {GetVersionString()}", new Font(ff, 12, FontStyle.Italic), brushLogo, 12, (int)(10 + titleSize.Height * .7));
if (drawArrows)
{
// horizontal arrow
PointF left = new PointF(padding, size.Height / 2);
PointF leftA = new PointF(left.X + arrowSize, left.Y + arrowSize);
PointF leftB = new PointF(left.X + arrowSize, left.Y - arrowSize);
PointF right = new PointF(size.Width - padding, size.Height / 2);
PointF rightA = new PointF(right.X - arrowSize, right.Y + arrowSize);
PointF rightB = new PointF(right.X - arrowSize, right.Y - arrowSize);
gfx.DrawLine(pen, left, right);
gfx.DrawLine(pen, left, leftA);
gfx.DrawLine(pen, left, leftB);
gfx.DrawLine(pen, right, rightA);
gfx.DrawLine(pen, right, rightB);
gfx.DrawString($"{size.Width}px",
new Font(ff, 12, FontStyle.Bold), brushMeasurements,
(float)(size.Width * .2), (float)(size.Height * .5));
// vertical arrow
PointF top = new PointF(size.Width / 2, padding);
PointF topA = new PointF(top.X - arrowSize, top.Y + arrowSize);
PointF topB = new PointF(top.X + arrowSize, top.Y + arrowSize);
PointF bot = new PointF(size.Width / 2, size.Height - padding);
PointF botA = new PointF(bot.X - arrowSize, bot.Y - arrowSize);
PointF botB = new PointF(bot.X + arrowSize, bot.Y - arrowSize);
gfx.DrawLine(pen, top, bot);
gfx.DrawLine(pen, bot, botA);
gfx.DrawLine(pen, bot, botB);
gfx.DrawLine(pen, top, topA);
gfx.DrawLine(pen, top, topB);
gfx.RotateTransform(-90);
gfx.DrawString($"{size.Height}px",
new Font(ff, 12, FontStyle.Bold), brushMeasurements,
(float)(-size.Height * .4), (float)(size.Width * .5));
}
return(bmp);
}
public override void Render(Settings settings)
{
double[] proportions = values.Select(x => x / values.Sum()).ToArray();
int outlineWidth = 1;
int sliceOutlineWidth = 0;
if (explodedChart)
{
pen.Color = settings.DataBackground.Colour; // TODO: will fail if data background is transparent
outlineWidth = 20;
sliceOutlineWidth = 1;
}
AxisLimits2D limits = GetLimits();
double centreX = limits.xCenter;
double centreY = limits.yCenter;
float diameterPixels = .9f * Math.Min(settings.dataSize.Width, settings.dataSize.Height);
string fontName = Fonts.GetSansFontName();
float fontSize = 12;
// 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((float)settings.GetPixelX(centreX) - diameterPixels / 2, (float)settings.GetPixelY(centreY) - diameterPixels / 2, diameterPixels, diameterPixels);
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[i] : "";
labelStrings[i] = $"{sliceLabelValue}\n{sliceLabelPercentage}\n{sliceLabelName}".Trim();
brush.Color = colors[i];
settings.gfxData.FillPie(brush, (int)(boundingRectangle.X + xOffset), (int)(boundingRectangle.Y + yOffset), boundingRectangle.Width, boundingRectangle.Height, (float)start, (float)(sweep + sweepOffset));
if (explodedChart)
{
pen.Width = sliceOutlineWidth;
settings.gfxData.DrawPie(pen, (int)(boundingRectangle.X + xOffset), (int)(boundingRectangle.Y + yOffset), boundingRectangle.Width, boundingRectangle.Height, (float)start, (float)(sweep + sweepOffset));
}
start += sweep;
}
brush.Color = Color.White;
var font = new Font(fontName, fontSize);
for (int i = 0; i < values.Length; i++)
{
if (!string.IsNullOrWhiteSpace(labelStrings[i]))
{
settings.gfxData.DrawString(labelStrings[i], font, brush,
(float)labelXs[i], (float)labelYs[i], settings.misc.sfCenterCenter);
}
}
pen.Width = outlineWidth;
settings.gfxData.DrawEllipse(pen, boundingRectangle.X, boundingRectangle.Y, boundingRectangle.Width, boundingRectangle.Height);
}
public PlottableBar(double[] xs, double[] ys, string label,
double barWidth, double xOffset,
bool fill, Color fillColor,
double outlineWidth, Color outlineColor,
double[] yErr, double errorLineWidth, double errorCapSize, Color errorColor,
bool horizontal, bool showValues, Color valueColor, double[] yOffsets, Color negativeColor
)
{
if (ys is null || ys.Length == 0)
{
throw new ArgumentException("ys must contain data values");
}
if (xs is null)
{
xs = DataGen.Consecutive(ys.Length);
}
if (xs.Length != ys.Length)
{
throw new ArgumentException("xs and ys must have same number of elements");
}
if (yErr is null)
{
yErr = DataGen.Zeros(ys.Length);
}
if (yErr.Length != ys.Length)
{
throw new ArgumentException("yErr and ys must have same number of elements");
}
if (yOffsets is null)
{
yOffsets = DataGen.Zeros(ys.Length);
}
this.xs = xs;
this.ys = ys;
this.yErr = yErr;
this.xOffset = xOffset;
this.label = label;
this.verticalBars = !horizontal;
this.showValues = showValues;
this.barWidth = barWidth;
this.errorCapSize = errorCapSize;
this.fill = fill;
this.fillColor = fillColor;
this.negativeColor = negativeColor;
this.yOffsets = yOffsets;
fillBrush = new SolidBrush(fillColor);
outlinePen = new Pen(outlineColor, (float)outlineWidth);
errorPen = new Pen(errorColor, (float)errorLineWidth);
valueTextFont = new Font(Fonts.GetDefaultFontName(), 12);
valueTextBrush = new SolidBrush(valueColor);
}