public virtual bool Create_Legend(string path, string name)
{
//提取legendInfo
string[] colors = null;
string[] titlesInfo = null;
this.InitRenderInfos("titlesInfo", ref titlesInfo, "legendInfo");
this.InitRenderInfos("colorsInfo", ref colors, "legendInfo");
//计算图例区间
ImageColor pBackground = new ImageColor("#192734");
int fontSize = 18, titleH = 46;
int nOffset_x = 10, nOffset_y = 10, nStepX = 10, nStepY = 10;
int nW_legend = 60, nH_legend = 20;
int nH = colors.Length * (nH_legend + nStepY) - nStepY + nOffset_y * 2 + nStepX + titleH;
int nW = nW_legend + nOffset_x * 2 + nW_legend + nStepY * 2;
int nNum = colors.Length - 1;
string pathLengend = Directory.GetCurrentDirectory() + "/ModelData/Image/GIS/Legend.png";
_Image_legend = new ImageObj();
_Image_legend.Create(pathLengend, nW, nH);
for (int i = 0; i < colors.Length; i++)
{
_Image_legend.DrawPolygon(nOffset_x, nOffset_y + titleH + i * (nH_legend + nStepY), _ImageColors[nNum - i].Color, 1, nW_legend, nH_legend, false);
_Image_legend.DrawText(nOffset_x + nW_legend + nStepX, nOffset_y + titleH + i * (nH_legend + nStepY), _ImageColors[nNum - i].Color, titlesInfo[i], null, 11, true, false, Alignment.Near, Alignment.Near);
}
_Image_legend.DrawText(nW / 2, nOffset_y, pBackground.Color, "图例", null, fontSize, true, false, Alignment.Center, Alignment.Near);
if (name + "" != "")
{
_Image_legend.Name = name;
}
return(_Image_legend.Save(path));
}
public virtual ImageObj Create_Scale(float length = 10000, string unit = "km")
{
string pathScale = Directory.GetCurrentDirectory() + "/ModelData/Image/GIS/Scale.png";
ImageObj imgScale = new ImageObj(100, 100);
//计算图例区间
double W = _Metadata.MaxX - _Metadata.MinX;
double ratioScale = W * 111000 / _Image.Width;
int nPixels = (int)(length / ratioScale);
var font = imgScale.defaultFont(11, "");
var sizeText = imgScale.Graphic.MeasureString(unit, font);
int nOffset_x = 10, nOffset_y = 8;
int nW = nPixels + nOffset_x * 3 + (int)sizeText.Width;
int nH = nOffset_y * 3 + (int)sizeText.Height;
imgScale.Create(pathScale, nPixels, nOffset_y);
//绘制
ImageColor pColor = new ImageColor("#192734");
ImageObj img = new ImageObj(nW, nH);
img.DrawImage(nOffset_x, nOffset_y + (int)sizeText.Height, imgScale, 1);
int hUnit = nOffset_y + (int)(sizeText.Height - imgScale.Height / 2 - 1);
img.DrawText(nOffset_x * 2 + nPixels, hUnit, pColor.Color, unit, font, 0, true, false, Alignment.Near, Alignment.Near);
int hDis = (int)(sizeText.Height / 2 - 1);
img.DrawText(nOffset_x, hDis, pColor.Color, "0", font, 0, true, false, Alignment.Center, Alignment.Near);
img.DrawText(nOffset_x + nPixels / 2 / 2, hDis, pColor.Color, (length / 1000 / 2 / 2).ToString(), font, 0, true, false, Alignment.Center, Alignment.Near);
img.DrawText(nOffset_x + nPixels / 2, hDis, pColor.Color, (length / 1000 / 2).ToString(), font, 0, true, false, Alignment.Center, Alignment.Near);
img.DrawText(nOffset_x + nPixels, hDis, pColor.Color, (length / 1000).ToString(), font, 0, true, false, Alignment.Center, Alignment.Near);
return(img);
}