/// <summary>
/// Creates an instance of this class using the provided layer
/// </summary>
/// <param name="layerName">The name of the layer</param>
/// <param name="fileName">The path to the file</param>
public ImageGDILayer(string layerName, string fileName, config incfg)
:this(layerName, Image.FromFile(fileName), incfg)
{
ImageFilename = fileName;
SetEnvelope(fileName);
_envelope = new Envelope(cfg.minX,cfg.maxX,cfg.minY,cfg.maxY);
}
//从内存加载图片
public void addGDIlayer(string layername, IImageDataProvider datapro, config cfg)
{
//delete existing same layer
ILayer layer = this.mapBox.Map.GetLayerByName(layername);
if (layer != null)
{
if (mp != null)
{
mp.Dispose();
mp = null;
}
if (img != null)
{
img.Dispose();
img = null;
}
if (p != null)
{
DeleteObject(p);
}
this.mapBox.Map.Layers.Remove(layer);
((Layer)layer).Dispose();
GC.Collect();
}
//get data from data provider
if (datapro == null)
{
DefaultData dd = new DefaultData();
mp = dd.GetData();
}
else
{
mp = datapro.GetData();
}
p = mp.GetHbitmap();
img = Image.FromHbitmap(p);
ImageGDILayer gdilayer = new ImageGDILayer(layername, img, cfg);
this.mapBox.Map.Layers.Insert(0, gdilayer);
this.mapBox.Map.ZoomToBox(gdilayer.Envelope);
this.mapBox.Refresh();
//System.Diagnostics.Process.GetCurrentProcess().MinWorkingSet = new System.IntPtr(5);
}
//获取shp投影方式
public ICoordinateTransformation getmapTransform(config.ProjPara proj)
{
CoordinateTransformationFactory ctFac = new CoordinateTransformationFactory();
CoordinateSystemFactory cFac = new CoordinateSystemFactory();
ICoordinateTransformation transform = null;
//等经纬，shp数据原始投影
var epsg4326 = cFac.CreateFromWkt("GEOGCS[\"GCS_WGS_1984\",DATUM[\"WGS_1984\",SPHEROID[\"WGS_84\",6378137.0,298.257223563]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]]");
//目标坐标系
var epsg3857 = cFac.CreateFromWkt(getSrcCoordinate(proj));
transform = ctFac.CreateFromCoordinateSystems(epsg4326, epsg3857);
return transform;
}
public short[] getpoints(config cfg)
{
//得到选取的所有点大地坐标
List <PointF> pts = mapControl1.getPoints();
//选取的点与数据进行筛选
short[] selectData;
SelectImageData imgdata = new SelectImageData();
selectData = imgdata.getSelectData(pts, cfg.width * cfg.height, cfg, mapControl1.getPixelsize());
return(selectData);
}
/// <summary>
/// Creates an instance of this class using the provided <paramref name="layerName"/> and <paramref name="image"/>.
/// </summary>
/// <param name="layerName">The layer name</param>
/// <param name="image"></param>
public ImageGDILayer(string layerName, Image image, config incfg)
{
InterpolationMode = InterpolationMode.HighQualityBicubic;
LayerName = layerName;
_image = image;
SetEnvelope();
cfg = incfg;
//for test purposes
//cfg.minX = 152203.122f;
//cfg.maxX = 3158014f;
//cfg.minY = 3086534.736f;
//cfg.maxY = 6023337.07f;
_envelope = new Envelope(cfg.minX, cfg.maxX, cfg.minY, cfg.maxY);
}
public double[] getEagleEnvelope(config cfg)
{
double[] result = mapControl1.getZoomEnvelope(cfg);
return(result);
}
/// <summary>
/// Creates an instance of this class using the provided layer
/// </summary>
/// <param name="fileName">The path to the file</param>
public ImageGDILayer(string fileName,config incfg)
: this(Path.GetFileName(fileName), fileName,incfg)
{
}
public short[] getpoints(config cfg )
{
//得到选取的所有点大地坐标
List<PointF> pts = mapControl1.getPoints();
//选取的点与数据进行筛选
short[] selectData;
SelectImageData imgdata = new SelectImageData();
selectData = imgdata.getSelectData(pts, cfg.width * cfg.height, cfg,mapControl1.getPixelsize());
return selectData;
}
public void setCfg(config incfg)
{
cfg = incfg;
pjPara = incfg.pjPara;
}
public void setcfg(config cfg)
{
mapControl1.setCfg(cfg);
}
//从内存加载图片
public void addGDIlayer(string layername, IImageDataProvider datapro, config cfg)
{
//delete existing same layer
ILayer layer = this.mapBox.Map.GetLayerByName(layername);
if (layer != null)
{
if (mp != null)
{
mp.Dispose();
mp = null;
}
if (img != null)
{
img.Dispose();
img = null;
}
if (p != null)
{
DeleteObject(p);
}
this.mapBox.Map.Layers.Remove(layer);
((Layer)layer).Dispose();
GC.Collect();
}
//get data from data provider
if (datapro == null)
{
DefaultData dd = new DefaultData();
mp = dd.GetData();
}
else
{
mp = datapro.GetData();
}
p = mp.GetHbitmap();
img = Image.FromHbitmap(p);
ImageGDILayer gdilayer = new ImageGDILayer(layername, img, cfg);
this.mapBox.Map.Layers.Insert(0, gdilayer);
this.mapBox.Map.ZoomToBox(gdilayer.Envelope);
this.mapBox.Refresh();
//System.Diagnostics.Process.GetCurrentProcess().MinWorkingSet = new System.IntPtr(5);
}
public double[] getZoomEnvelope(config cfg)
{
double[] scale = new double[4];
Envelope tmpEv = this.mapBox.Map.Envelope;
double x_start = (tmpEv.MinX - cfg.minX) / (cfg.maxX - cfg.minX);
double x_end = (tmpEv.MaxX - cfg.minX) / (cfg.maxX - cfg.minX);
double y_start = (tmpEv.MinY - cfg.minY) / (cfg.maxY - cfg.minY);
double y_end = (tmpEv.MaxY - cfg.minY) / (cfg.maxY - cfg.minY);
scale[0] = x_start;
scale[1] = x_end;
scale[2] = y_start;
scale[3] = y_end;
for (int i = 0; i < scale.Count(); i++)
{
if (scale[i] < 0) scale[i] = 0;
if (scale[i] > 1) scale[i] = 1;
}
return scale;
}
public double[] getEagleEnvelope(config cfg)
{
double[] result = mapControl1.getZoomEnvelope(cfg);
return result;
}
//从路径加载图片
public void addGDIlayer(string layername, string filepath, config cfg)
{
ImageGDILayer gdilayer = new ImageGDILayer(layername, filepath, cfg);
this.mapBox.Map.Layers.Insert(0, gdilayer);
this.mapBox.Map.ZoomToBox(gdilayer.Envelope);
this.mapBox.Refresh();
}
public void getCFG(config inCFG)
{
imgCon = inCFG;
//imgCon.fullPath = "";
}
public void setcfg(config cfg)
{
mapControl1.setCfg(cfg);
}
//test gdi layer
public void addgdilayer(string layername, string filepath,config incfg)
{
//config cfg = getCoordinate(incfg);
Envelope en = new Envelope(incfg.minX, incfg.maxX, incfg.minY, incfg.maxY);
mapControl1.addGDIlayer(layername,filepath,incfg);
}
public void setCfg(config incfg)
{
cfg = incfg;
pjPara = incfg.pjPara;
}
public void addgdilayer(string layername, IImageDataProvider datapro, config incfg)
{
//config cfg = getCoordinate(incfg);
Envelope en = new Envelope(incfg.minX, incfg.maxX, incfg.minY, incfg.maxY);
mapControl1.addGDIlayer(layername, datapro, incfg);
}
public void getCFG(config inCFG)
{
imgCon = inCFG;
//imgCon.fullPath = "";
}
public config getCoordinate(config cfg)
{
Projection pj = new Projection();
PointF p1 = new PointF();
PointF p2 = new PointF();
PointF p1_proj = new PointF();
PointF p2_proj = new PointF();
p1.X = cfg.upperLeftLon; p1.Y = cfg.upperLeftLat;
p1_proj = pj.GetXYFromLatLon(p1,cfg.pjPara);
p2.X = cfg.lowerRightLon; p2.Y = cfg.lowerRightLat;
p2_proj = pj.GetXYFromLatLon(p2, cfg.pjPara);
//cfg.maxX = p2_proj.X;
//cfg.minX = p1_proj.X;
//cfg.maxY = p1_proj.Y;
//cfg.minY = p2_proj.Y;
cfg.minX = p1_proj.X;
cfg.maxX = cfg.minX + cfg.resolution * cfg.width;
cfg.minY = p2_proj.Y;
cfg.maxY = cfg.minY + cfg.resolution * cfg.height;
return cfg;
}