/// <summary>
/// The Copy Constructor
/// </summary>
/// <param name="rhs">The <see cref="TextObj"/> object from which to copy</param>
public TextObj(TextObj rhs)
: base(rhs)
{
_text = rhs.Text;
_fontSpec = new FontSpec(rhs.FontSpec);
}
// Call this method from the Form_Load method
public void CreateChartComb()
{
GraphPane myPane = this.GraphPane;
// Set the titles and axis labels
myPane.Title.Text = "Wacky Widget Company\nProduction Report";
myPane.XAxis.Title.Text = "Time, Days\n(Since Plant Construction Startup)";
myPane.YAxis.Title.Text = "Widget Production\n(units/hour)";
LineItem curve;
// Set up curve "Larry"
double[] x = { 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 };
double[] y = { 20, 10, 50, 25, 35, 75, 94, 40, 33, 50 };
// Use green, with circle symbols
curve = myPane.AddCurve("Larry", x, y, Color.Green, SymbolType.Circle);
curve.Line.Width = 1.5F;
// Fill the area under the curve with a white-green gradient
curve.Line.Fill = new Fill(Color.White, Color.FromArgb(60, 190, 50), 90F);
// Make it a smooth line
curve.Line.IsSmooth = true;
curve.Line.SmoothTension = 0.6F;
// Fill the symbols with white
curve.Symbol.Fill = new Fill(Color.White);
curve.Symbol.Size = 10;
// Second curve is "moe"
double[] x3 = { 150, 250, 400, 520, 780, 940 };
double[] y3 = { 5.2, 49.0, 33.8, 88.57, 99.9, 36.8 };
// Use a red color with triangle symbols
curve = myPane.AddCurve("Moe", x3, y3, Color.FromArgb(200, 55, 135), SymbolType.Triangle);
curve.Line.Width = 1.5F;
// Fill the area under the curve with semi-transparent pink using the alpha value
curve.Line.Fill = new Fill(Color.White, Color.FromArgb(160, 230, 145, 205), 90F);
// Fill the symbols with white
curve.Symbol.Fill = new Fill(Color.White);
curve.Symbol.Size = 10;
// Third Curve is a bar, called "Wheezy"
double[] x4 = { 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 };
double[] y4 = { 30, 45, 53, 60, 75, 83, 84, 79, 71, 57 };
BarItem bar = myPane.AddBar("Wheezy", x4, y4, Color.SteelBlue);
// Fill the bars with a RosyBrown-White-RosyBrown gradient
bar.Bar.Fill = new Fill(Color.RosyBrown, Color.White, Color.RosyBrown);
// Fourth curve is a bar
double[] x2 = { 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 };
double[] y2 = { 10, 15, 17, 20, 25, 27, 29, 26, 24, 18 };
bar = myPane.AddBar("Curly", x2, y2, Color.RoyalBlue);
// Fill the bars with a RoyalBlue-White-RoyalBlue gradient
bar.Bar.Fill = new Fill(Color.RoyalBlue, Color.White, Color.RoyalBlue);
// Fill the pane background with a gradient
myPane.Fill = new Fill(Color.WhiteSmoke, Color.Lavender, 0F);
// Fill the axis background with a gradient
myPane.Chart.Fill = new Fill(Color.FromArgb(255, 255, 245),
Color.FromArgb(255, 255, 190), 90F);
// Make each cluster 100 user scale units wide. This is needed because the X Axis
// type is Linear rather than Text or Ordinal
myPane.BarSettings.ClusterScaleWidth = 100;
// 堆叠柱状图 Bars are stacked
myPane.BarSettings.Type = BarType.Stack;
// 显示X轴Y轴栅格
myPane.XAxis.MajorGrid.IsVisible = true;
myPane.YAxis.MajorGrid.IsVisible = true;
// 设置X和Y轴的最大值,最小值
//myPane.XAxis.Scale.Max = 1400;
//myPane.YAxis.Scale.Max = 120;
//myPane.XAxis.Scale.Min = -100;
// 加入文本标识
TextObj text = new TextObj("First Prod\n21-Oct-93", 175F, 80.0F);
// Align the text such that the Bottom-Center is at (175, 80) in user scale coordinates
text.Location.AlignH = AlignH.Center;
text.Location.AlignV = AlignV.Bottom;
text.FontSpec.Fill = new Fill(Color.White, Color.PowderBlue, 45F);
text.FontSpec.StringAlignment = StringAlignment.Near;
myPane.GraphObjList.Add(text);
// 为上面的文本加箭头
ArrowObj arrow = new ArrowObj(Color.Black, 12F, 175F, 77F, 100F, 45F);
arrow.Location.CoordinateFrame = CoordType.AxisXYScale;
myPane.GraphObjList.Add(arrow);
// 再加一个文本
text = new TextObj("Upgrade", 700F, 50.0F);
// 旋转90度
text.FontSpec.Angle = 90;
// 修改对齐方式 Align the text such that the Right-Center is at (700, 50) in user scale coordinates
text.Location.AlignH = AlignH.Right;
text.Location.AlignV = AlignV.Center;
// 去掉文本框的填充和外框
text.FontSpec.Fill.IsVisible = false;
text.FontSpec.Border.IsVisible = false;
myPane.GraphObjList.Add(text);
// 再为上面的文本加入一个箭头
arrow = new ArrowObj(Color.Black, 15, 700, 53, 700, 80);
arrow.Location.CoordinateFrame = CoordType.AxisXYScale;
//arrow.PenWidth = 2.0F;
myPane.GraphObjList.Add(arrow);
// 添加文本
text = new TextObj("内部资料", 0.85F, -0.03F);
// 使用 ChartFraction coordinates，以便文本和图形矩形坐标相关
text.Location.CoordinateFrame = CoordType.ChartFraction;
// 旋转15度
text.FontSpec.Angle = 15.0F;
// 设置文本特性
text.FontSpec.FontColor = Color.Red;
text.FontSpec.IsBold = true;
text.FontSpec.Size = 16;
// 去除填充和外框显示
text.FontSpec.Border.IsVisible = false;
text.FontSpec.Fill.IsVisible = false;
// 设置对齐方式
text.Location.AlignH = AlignH.Left;
text.Location.AlignV = AlignV.Bottom;
myPane.GraphObjList.Add(text);
// 增加 BoxObj 在数据上部显示一个颜色条
BoxObj box = new BoxObj(0, 110, 1200, 10,
Color.Empty, Color.FromArgb(225, 245, 225));
box.Location.CoordinateFrame = CoordType.AxisXYScale;
// 对齐到 left-top of the box to (0, 110)
box.Location.AlignH = AlignH.Left;
box.Location.AlignV = AlignV.Top;
// 设置Z方向的次序 place the box behind the axis items, so the grid is drawn on top of it
box.ZOrder = ZOrder.F_BehindGrid;
myPane.GraphObjList.Add(box);
// Add some text inside the above box to indicate "Peak Range"
TextObj myText = new TextObj("Peak Range", 1170, 105);
myText.Location.CoordinateFrame = CoordType.AxisXYScale;
myText.Location.AlignH = AlignH.Right;
myText.Location.AlignV = AlignV.Center;
myText.FontSpec.IsItalic = true;
myText.FontSpec.IsBold = false;
myText.FontSpec.Fill.IsVisible = false;
myText.FontSpec.Border.IsVisible = false;
myPane.GraphObjList.Add(myText);
// Calculate the Axis Scale Ranges
this.AxisChange();
}
/// <summary>
/// Create a <see cref="TextObj" /> for each bar in the <see cref="GraphPane" />.
/// </summary>
/// <remarks>
/// This method will go through the bars, create a label that corresponds to the bar value,
/// and place it on the graph depending on user preferences. This works for horizontal or
/// vertical bars in clusters or stacks, but only for <see cref="BarItem" /> types. This method
/// does not apply to <see cref="ErrorBarItem" /> or <see cref="HiLowBarItem" /> objects.
/// Call this method only after calling <see cref="GraphPane.AxisChange()" />.
/// </remarks>
/// <param name="pane">The GraphPane in which to place the text labels.</param>
/// <param name="isBarCenter">true to center the labels inside the bars, false to
/// place the labels just above the top of the bar.</param>
/// <param name="valueFormat">The double.ToString string format to use for creating
/// the labels.
/// </param>
/// <param name="fontColor">The color in which to draw the labels</param>
/// <param name="fontFamily">The string name of the font family to use for the labels</param>
/// <param name="fontSize">The floating point size of the font, in scaled points</param>
/// <param name="isBold">true for a bold font type, false otherwise</param>
/// <param name="isItalic">true for an italic font type, false otherwise</param>
/// <param name="isUnderline">true for an underline font type, false otherwise</param>
public static void CreateBarLabels(GraphPane pane, bool isBarCenter, string valueFormat,
string fontFamily, float fontSize, Color fontColor, bool isBold, bool isItalic,
bool isUnderline)
{
bool isVertical = pane.BarSettings.Base == BarBase.X;
// keep a count of the number of BarItems
int curveIndex = 0;
// Get a valuehandler to do some calculations for us
ValueHandler valueHandler = new ValueHandler(pane, true);
// Loop through each curve in the list
foreach (CurveItem curve in pane.CurveList)
{
// work with BarItems only
BarItem bar = curve as BarItem;
if (bar != null)
{
IPointList points = curve.Points;
// ADD JKB 9/21/07
// The labelOffset should depend on whether the curve is YAxis or Y2Axis.
// JHC - Generalize to any value axis
// Make the gap between the bars and the labels = 1.5% of the axis range
float labelOffset;
Scale scale = curve.ValueAxis(pane).Scale;
labelOffset = (float)(scale._max - scale._min) * 0.015f;
// Loop through each point in the BarItem
for (int i = 0; i < points.Count; i++)
{
// Get the high, low and base values for the current bar
// note that this method will automatically calculate the "effective"
// values if the bar is stacked
double baseVal, lowVal, hiVal;
valueHandler.GetValues(curve, i, out baseVal, out lowVal, out hiVal);
// Get the value that corresponds to the center of the bar base
// This method figures out how the bars are positioned within a cluster
float centerVal = (float)valueHandler.BarCenterValue(bar,
bar.GetBarWidth(pane), i, baseVal, curveIndex);
// Create a text label -- note that we have to go back to the original point
// data for this, since hiVal and lowVal could be "effective" values from a bar stack
string barLabelText = (isVertical ? points[i].Y : points[i].X).ToString(valueFormat);
// Calculate the position of the label -- this is either the X or the Y coordinate
// depending on whether they are horizontal or vertical bars, respectively
float position;
if (isBarCenter)
{
position = (float)(hiVal + lowVal) / 2.0f;
}
else if (hiVal >= 0)
{
position = (float)hiVal + labelOffset;
}
else
{
position = (float)hiVal - labelOffset;
}
// Create the new TextObj
TextObj label;
if (isVertical)
{
label = new TextObj(barLabelText, centerVal, position);
}
else
{
label = new TextObj(barLabelText, position, centerVal);
}
label.FontSpec.Family = fontFamily;
// Configure the TextObj
// CHANGE JKB 9/21/07
// CoordinateFrame should depend on whether curve is YAxis or Y2Axis.
label.Location.CoordinateFrame =
(isVertical && curve.IsY2Axis) ? CoordType.AxisXY2Scale : CoordType.AxisXYScale;
label.FontSpec.Size = fontSize;
label.FontSpec.FontColor = fontColor;
label.FontSpec.IsItalic = isItalic;
label.FontSpec.IsBold = isBold;
label.FontSpec.IsUnderline = isUnderline;
label.FontSpec.Angle = isVertical ? 90 : 0;
label.Location.AlignH = isBarCenter ? AlignH.Center :
(hiVal >= 0 ? AlignH.Left : AlignH.Right);
label.Location.AlignV = AlignV.Center;
label.FontSpec.Border.IsVisible = false;
label.FontSpec.Fill.IsVisible = false;
// Add the TextObj to the GraphPane
pane.GraphObjList.Add(label);
}
curveIndex++;
}
}
}