AE Raster Classification Rendering

Arcengine the vector data is really handy, the same for raster images can be styled! No contact before, today just need to make a raster image rendering! The following ideas are implemented:

1. Define a series of interfaces for rendering 2. Determine if the image has a histogram created, if not. 3. Define a color sequence that provides a rendering scheme for rendering. 4. Call the Render method for rendering. Here is the code: there are two methods, one is to load the raster data, one is to render, and then in the event to invoke the method to achieve image rendering!        ///GRID classification thematic map        ///        ///Raster layer         public static void Funcolorforraster_classify (Irasterlayer prasterlayer)         {             Irasterclassifycolorramprenderer prclassrend = new Rasterclassifycolorramprenderer () as irasterclassifycolorramprenderer;             Irasterrenderer prrend = prclassrend as irasterrenderer;              Iraster praster = prasterlayer.raster;             irasterbandcollection prbandcol = praster as Irasterbandcollection;            Irasterband prband = PRBandCol.Item (0);             if (Prband.histogram = = null)              {                 prband.computestatsandhist ();            }            Prrend.raster = pRaster;             Prclassrend.classcount = 10;             prrend.update ();              Irgbcolor pfromcolor = new RgbColor () as irgbcolor;             pfromcolor.red = 255;            PfRomcolor.green = 0;            PFromColor.Blue = 0;             Irgbcolor ptocolor = new RgbColor () as irgbcolor; & nbsp;          ptocolor.red = 0;             Ptocolor.green = 0;             Ptocolor.blue = 255;             Ialgorithmiccolorramp Colorramp = new Algorithmiccolorramp () as ialgorithmiccolorramp;             colorramp.size = 10;             Colorramp.fromcolor = pfromcolor;            Colorramp.tocolor = ptocolor;                     BOOL createcolorramp;              Colorramp.createramp (out Createcolorramp);              Ifillsymbol fillsymbol = new Simplefillsymbol () as ifillsymbol;             for (int i = 0; i < Prclassrend.classcount; i++)    & nbsp;        {                 Fillsymbol.color = Colorramp.get_color (i);                 Prclassrend.set_symbol (i, fillsymbol as Isymbol);                 Prclassrend.set_label (i, Prclassrend.get_break (i). ToString ("0.00"));           }            Prasterlayer.renderer = prrend;        }               ///       ///Open Remote Sensing images        //        ///Image address        //Irasterlayer         Private Irasterlayer Openimage (string imagePath)          {            String ws = Path.getdirectoryname (ImagePath);            string FBS = Path.getfilename (ImagePath);             Iworkspacefactory pwork = new Rasterworkspacefactory ();             IrasterworKspace Prasterws = Pwork.openfromfile (ws,0) as irasterworkspace;             Irasterdataset Prasterdataset = Prasterws.openrasterdataset (FBS);                        Irasterlayer Prasterlayer = new Rasterlayer () as irasterlayer;             Prasterlayer.createfromdataset (Prasterdataset);             return prasterlayer;                    the logic of the event: AxMapControl1.Map.AddLayer (Openimage (FilePath)); AxMapControl1.ActiveView.Refresh (); Funcolorforraster_classify (Axmapcontrol1.get_layer (0) as Irasterlayer);//only One RasterLayeraxMapControl1.Activeview.Refresh ();

AE Raster Hierarchical rendering