/// <summary>
/// 根据已有控件重绘
/// </summary>
/// <param name="map"></param>
/// <param name=""></param>
public LegendSymbol(Map.MyMap map, LegendSymbol from, Point location, double resizescale2formal)
{
ResizeScale = resizescale2formal;
SetLegend(map, ResizeScale);
Box.Name = "LegendSymbol";
Box.Location = location;
}
public LegendSymbol(Map.MyMap map, double scale, Point location)
{
SetLegend(map, scale);
Box.Name = "LegendSymbol";
ResizeScale = scale;
Box.Location = location;
}
public LegendSymbol(Map.MyMap map, Point location)
{
Box.Name = "LegendSymbol";
SetLegend(map, 0.8);
ResizeScale = 1;
Box.Location = location;
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="newmap">地图文件</param>
/// <param name="centerpos">中心点位</param>
/// <param name="ratio">比例尺</param>
/// <param name="scaleindex">比例尺索引</param>
internal CGM(Map.MyMap newmap, PointF centerpos, double ratio, int scaleindex)
{
_map = newmap;
//TODO坐标系的记录
_centerpos = centerpos;
_ratio = ratio;
_scaleindex = scaleindex;
}
public Layout(Map.MyMap map, double datascale, Bitmap mapbit, Size size, Point location)
{
boxscale = 1;
mapbitmap = mapbit;
InitializeComponent();
thismap = map;
this.Width = size.Width;
this.Height = size.Height;
this.Location = location;
InitializePB_background();
UpdateMapBackground();
real2map = datascale * ratio2screen;
Update();
}
/// <summary>
/// 绘制图例
/// </summary>
/// <param name="map"></param>
/// <param name="scale"></param>
private void SetLegend(Map.MyMap map, double resizescale)
{
int layercount = map.LayerNum;
int dis = (int)(resizescale * 10);
int layerdis = (int)(resizescale * 20);
int symbolcount = 0;
int visiblelayercount = 0;
List <int> visiblelayers = new List <int>();
Box.BackColor = Color.Transparent;
for (int i = 0; i < layercount; i++)
{
if (map.Layers[i].Visible == true)
{
visiblelayercount++;
symbolcount += map.Layers[i].Renderer.SymbolCount;
visiblelayers.Add(i);
}
}
Bitmap newbitmap = new Bitmap((int)(resizescale * 150), (int)(resizescale * (symbolcount * dis + (visiblelayercount + 2) * layerdis + (symbolcount + visiblelayercount + 1) * 24)));
Graphics image = Graphics.FromImage(newbitmap);
Point start = new Point(0, 0);
image.DrawString("图例", new Font("黑体", (int)(resizescale * 15)), Brushes.Black, start);
start.Y = (layerdis + (int)(resizescale * 15));
for (int i = 0; i < visiblelayercount; i++)
{
start = LegendOfLayer(image, map.Layers[visiblelayers[i]], start, resizescale);
}
Box.AutoSize = false;
Box.Size = new Size((int)(newbitmap.Width * resizescale), (int)(newbitmap.Height * resizescale));
// Bitmap sbit = new Bitmap(newbitmap, new Size((int)(newbitmap.Width * scale), (int)(newbitmap.Height * scale)));
newbitmap.MakeTransparent(Color.White);
Box.Image = newbitmap;
Box.Left = 100;
Box.Top = 30;
}
public void Open()
{
FileStream fs = new FileStream(_filepath, FileMode.Open);
StreamReader sr = new StreamReader(fs);
string line = sr.ReadLine();
string[] words = line.Split(' ');
_Geocoordinate = Map.MyCoordinates.WGS1984; //由于不存在null选项
_Procoordinate = Map.MyCoordinates.WGS1984; //由于不存在null选项
//记录地理坐标系
switch (words[1])
{
case "WGS1984":
_Geocoordinate = Map.MyCoordinates.WGS1984;
break;
}
//记录投影坐标系
switch (words[2])
{
case "WGS1984":
_Geocoordinate = Map.MyCoordinates.WGS1984;
break;
}
//生成地图
_map = new Map.MyMap(words[0], _Geocoordinate, Convert.ToDouble(words[3]));
_ratio = Convert.ToDouble(words[3]);
_scaleindex = Convert.ToInt32(words[4]);
//显示中心点位
_centerpos = new PointF((float)Convert.ToDouble(words[5]), (float)Convert.ToDouble(words[6]));
//图层数量
int layercount = Convert.ToInt32(words[7]);
for (int i = 0; i < layercount; i++)
{
string layerpath = sr.ReadLine();
Map.MyLayer newlayer = null;
if (Path.GetExtension(layerpath) == ".shp")
{
//TODO先只可读SHP
Shapefile newshp = new Shapefile(layerpath);
newlayer = new MyLayer(newshp);
}
else
{
CosmosGisVector newcgv = new CosmosGisVector(layerpath);
newlayer = new MyLayer(newcgv);
}
newlayer.FilePath = layerpath;
//设置是否可见
string visible = sr.ReadLine();
if (visible == "True")
{
newlayer.Visible = true;
}
else
{
newlayer.Visible = false;
}
//获取渲染方式
string layerline = sr.ReadLine();
RendererType newrendertyppe = new GetType().RendererType(layerline.Split(' ')[0]);
newlayer.rendertype = newrendertyppe;
switch (newrendertyppe)
{
//唯一值渲染
case RendererType.UniqueValueRenderer:
string field_uvr = layerline.Split(' ')[1];
//TODO 获得属性唯一值
DataTable dt_uvr = newlayer.SpaceData.Property.SqlQuery("Select Distinct " + field_uvr + " From " + newlayer.LayerName);
List <string> values_uvr = new List <string>();
for (int j = 0; j < dt_uvr.Rows.Count; j++)
{
values_uvr.Add(dt_uvr.Rows[j][field_uvr].ToString());
}
//List<string> values = new List<string>() { "1", "2", "3", "3" ,"3","3","7"};
newlayer.Renderer = new UniqueValueRenderer(newlayer.DataType, field_uvr, values_uvr);
break;
//分级渲染
case RendererType.ClassBreakRenderer:
string field_cbr = layerline.Split(' ')[1];
DataTable dt_cbr = newlayer.SpaceData.Property.SqlQuery("Select Distinct " + field_cbr + " From " + newlayer.LayerName);
List <double> values_cbr = new List <double>();
for (int j = 0; j < dt_cbr.Rows.Count; j++)
{
values_cbr.Add(Convert.ToDouble(dt_cbr.Rows[j][field_cbr]));
}
//List<double> breaks = new List<double>() { 1, 2, 3 };
newlayer.Renderer = new ClassBreakRenderer(newlayer.DataType, field_cbr, values_cbr);
break;
//简单渲染
default:
newlayer.Renderer = new SimpleRenderer(newlayer.DataType);
break;
}
//判断是否有注记信息
string hastext = sr.ReadLine();
if (hastext == "True")
{
newlayer.HasText = true;
newlayer.Textrender = new TextRenderer(sr.ReadLine());
}
else
{
newlayer.HasText = false;
}
_map.AddLayer(newlayer);
}
sr.Close();
fs.Close();
}
