/// <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>
/// 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>
/// 绘图
/// </summary>
/// <param name="geoCoords"></param>
public Bitmap Draw(List <GeoCoord> geoCoords)
{
if (ChartSize.Width == 0 || ChartSize.Height == 0)
{
return(null);
}
Bitmap bmp = new Bitmap(ChartSize.Width, ChartSize.Height);;
Graphics g = Graphics.FromImage(bmp);
g.Clear(Color.White);
this.UserToScreenCoordConverter = new ScreenCoordConverter(this.ChartSize);
this.GeoCoords = new GeoCoords(geoCoords);
this.ChartGraphics = new Geo.Draw.UserChartGraphics(UserToScreenCoordConverter, g);
InputToContentCoordConverter = new PlainCoordConverter(this.GeoCoords.Size, this.ChartSize, GeoCoords.CoordFrom);
//var ColorBuilder = new TwoStepColorBuilder(this.GeoCoords.HeightSpan, Color.Blue, Color.Yellow, Color.Red);
var ColorBuilder = new ThreeStepColorBuilder(this.GeoCoords.HeightSpan, Color.Blue, Color.Cyan, Color.Yellow, Color.Red);
int cellWidth = (int)Math.Ceiling(InputToContentCoordConverter.XConverter.Factor * GeoCoords.LonInterval);
cellWidth = cellWidth < 1 ? 1 : cellWidth;
int cellHeight = (int)Math.Ceiling(InputToContentCoordConverter.YConverter.Factor * GeoCoords.LatInterval);
cellHeight = cellHeight < 1 ? 1 : cellHeight;
foreach (var geoCoord in geoCoords)
{
var xy = new XY(geoCoord.Lon, geoCoord.Lat);
var pt = InputToContentCoordConverter.GetNewPoint(xy);
var scrPt = UserToScreenCoordConverter.GetScreenCoord(pt);
var color = ColorBuilder.Build(geoCoord.Height);
ChartGraphics.DrawColorPoint(scrPt, cellWidth, cellHeight, color);
}
return(bmp);
// UserChartGraphics.DrawGrid(new Pen(new SolidBrush(Color.FromArgb(100, 100, 100))), 10, 10, Origin, this.ScreenCoordArea.RightTop);
}