/// <summary>
/// 图例
/// </summary>
public void DrawLegendColorBar()
{
if (TableValue == null)
{
return;
}
int cellWidth = 12;
int cellHeight = 1;
LineCoordConverter pixeToInputValConverter = new LineCoordConverter(SizeOfLegendColorBar.Height, this.TableValue.ValueSpan.Span);
for (int i = 0; i < SizeOfLegendColorBar.Height; i++)
{
var val = pixeToInputValConverter.GetNew(i) + this.TableValue.ValueSpan.Start; //像素，转换到原始数据，以获取颜色
var color = ColorBuilder.Build(val);
//转回平面坐标
var pt = OriginOfLengendColorBar + new Size(0, i);
var scrPt = UserToScreenCoordConverter.GetScreenCoord(pt);
ChartGraphics.DrawColorPoint(scrPt, cellWidth, cellHeight, color);
}
//绘制文字
ChartGraphics.DrawLabel(Geo.Utils.StringUtil.FillSpaceLeft(this.TableValue.ValueSpan.Start.ToString("0.00"), 6), OriginOfLengendColorBar - new Size(30, 20), 0);
ChartGraphics.DrawLabel(Geo.Utils.StringUtil.FillSpaceLeft(this.TableValue.ValueSpan.End.ToString("0.00"), 6),
OriginOfLengendColorBar + new Size(-30, SizeOfLegendColorBar.Height + 20), 0);
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="Span"></param>
/// <param name="ColorFrom"></param>
/// <param name="ColorTo"></param>
public TwoStepColorBuilder(NumerialSegment Span, Color ColorFrom, Color ColorMiddle, Color ColorTo)
{
MidleValue = Span.Median;
var segA = new NumerialSegment(Span.Start, MidleValue);
var segB = new NumerialSegment(MidleValue, Span.End);
ColorBuilderA = new ColorBuilder(segA, ColorFrom, ColorMiddle);
ColorBuilderB = new ColorBuilder(segB, ColorMiddle, ColorTo);
}
/// <summary>
/// 绘制二维颜色图
/// </summary>
/// <param name="table"></param>
public void DrawColorTable(TwoNumeralKeyAndValueDictionary table)
{
int cellWidth = ToInt(InputToContentCoordConverter.XConverter.Factor * table.IntervalA);
int cellHeight = ToInt(InputToContentCoordConverter.YConverter.Factor * table.IntervalB);
table.ForEach(new Action <double, double, double>(delegate(double x, double y, double val)
{
var xy = new XY(x, y);
var scrPt = InputToScreenPt(xy);
var color = ColorBuilder.Build(val);
ChartGraphics.DrawColorPoint(scrPt, cellWidth, cellHeight, color, ContentBoxInScreenCoord);
}));
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="Span"></param>
/// <param name="ColorFrom"></param>
/// <param name="ColorTo"></param>
public ThreeStepColorBuilder(NumerialSegment Span, Color ColorFrom, Color ColorMiddle, Color ColorMiddleB, Color ColorTo)
{
var smallSpan = Span.Span / 3.0;
FistStep = Span.Start + smallSpan;
SecondStep = Span.Start + smallSpan * 2;
var segA = new NumerialSegment(Span.Start, Span.Start + smallSpan);
var segB = new NumerialSegment(Span.Start + smallSpan, Span.Start + smallSpan * 2);
var segC = new NumerialSegment(Span.Start + smallSpan * 2, Span.End);
ColorBuilderA = new ColorBuilder(segA, ColorFrom, ColorMiddle);
ColorBuilderB = new ColorBuilder(segB, ColorMiddle, ColorMiddleB);
ColorBuilderC = new ColorBuilder(segC, ColorMiddleB, ColorTo);
}
