Esempio n. 1
0
        private Dictionary <double, object[]> zoneValueDic = null;//value = [count,max,min,sum,sum2,dictionary<int,int>]->dictionary is for unique, entropy, and ASM
        private void calcZoneValues()
        {
            bool   makeDic              = (ZoneClassCount || ZoneTypes.Contains(rasterUtil.zoneType.VARIETY) || ZoneTypes.Contains(rasterUtil.zoneType.ENTROPY) || ZoneTypes.Contains(rasterUtil.zoneType.ASM) || ZoneTypes.Contains(rasterUtil.zoneType.MINORITY) || ZoneTypes.Contains(rasterUtil.zoneType.MODE) || ZoneTypes.Contains(rasterUtil.zoneType.MEDIAN));
            IPnt   zMeanCellSize        = zRs.RasterInfo.CellSize;
            IPnt   vMeanCellSize        = vRs.RasterInfo.CellSize;
            int    intersectWidthCells  = System.Convert.ToInt32(intEnv.Width / zMeanCellSize.X);
            int    intersectHeightCells = System.Convert.ToInt32(intEnv.Height / zMeanCellSize.Y);
            IPoint tl        = intEnv.UpperLeft;
            int    bH        = 512;
            int    bW        = 512;
            int    wCellsMax = intersectWidthCells;
            int    hCellsMax = intersectHeightCells;
            IPnt   zPntLoc   = new PntClass();
            IPnt   vPntLoc   = new PntClass();
            IPnt   zPntSize  = new PntClass();
            IRasterFunctionHelper inZoneHelper = new RasterFunctionHelperClass();

            inZoneHelper.Bind(InZoneRaster);
            IRasterFunctionHelper inValueHelper = new RasterFunctionHelperClass();

            inValueHelper.Bind(InValueRaster);
            IRaster2 zr = (IRaster2)inZoneHelper.Raster;
            IRaster2 vr = (IRaster2)inValueHelper.Raster;
            int      zclm, zrw, vclm, vrw;

            zr.MapToPixel(tl.X + (zMeanCellSize.X / 2), tl.Y - (zMeanCellSize.Y / 2), out zclm, out zrw);
            vr.MapToPixel(tl.X + (zMeanCellSize.X / 2), tl.Y - (zMeanCellSize.Y / 2), out vclm, out vrw);
            int ozclm = zclm;
            int ozrw  = zrw;
            int ovclm = vclm;
            int ovrw  = vrw;

            zPntLoc.SetCoords(zclm, zrw);
            vPntLoc.SetCoords(vclm, vrw);
            for (int brw = 0; brw < hCellsMax; brw += bH)
            {
                int rH = hCellsMax - brw;//Height of block
                if (rH > bH)
                {
                    rH = bH;
                }
                for (int bclm = 0; bclm < wCellsMax; bclm += bW)
                {
                    int cW = wCellsMax - bclm;//Width of block
                    if (cW > bW)
                    {
                        cW = bW;
                    }
                    zPntSize.SetCoords(cW, rH);
                    IPixelBlock zPb = ((IRaster)zr).CreatePixelBlock(zPntSize);
                    IPixelBlock vPb = ((IRaster)vr).CreatePixelBlock(zPntSize);
                    inZoneHelper.Read(zPntLoc, null, (IRaster)zr, zPb);
                    inValueHelper.Read(vPntLoc, null, (IRaster)vr, vPb);
                    for (int i = 0; i < vPb.Planes; i++)
                    {
                        zoneValueDic = zoneValueDicArr[i];
                        //double vNoDataVl = System.Convert.ToDouble(((System.Array)vProps.NoDataValue).GetValue(i));
                        //System.Array vPix = (System.Array)vPb.get_SafeArray(i);
                        for (int r = 0; r < rH; r++)
                        {
                            for (int c = 0; c < cW; c++)
                            {
                                object zObj = zPb.GetVal(0, c, r);
                                if (zObj == null)
                                {
                                    continue;
                                }
                                else
                                {
                                    double z    = System.Convert.ToDouble(zObj);
                                    object vObj = vPb.GetVal(i, c, r);

                                    if (vObj == null)
                                    {
                                        continue;
                                    }
                                    else
                                    {
                                        double   v = System.Convert.ToDouble(vObj);
                                        object[] zoneValue;
                                        if (zoneValueDic.TryGetValue(z, out zoneValue))
                                        {
                                            double cnt = System.Convert.ToDouble(zoneValue[0]);
                                            zoneValue[0] = cnt += 1;
                                            double maxVl = System.Convert.ToDouble(zoneValue[1]);
                                            if (v > maxVl)
                                            {
                                                maxVl        = v;
                                                zoneValue[1] = maxVl;
                                            }
                                            double minVl = System.Convert.ToDouble(zoneValue[2]);
                                            if (v < minVl)
                                            {
                                                minVl        = v;
                                                zoneValue[2] = minVl;
                                            }
                                            double s = System.Convert.ToDouble(zoneValue[3]);
                                            zoneValue[3] = s + v;
                                            double s2 = System.Convert.ToDouble(zoneValue[4]);
                                            zoneValue[4] = s2 + v * v;
                                            if (makeDic)
                                            {
                                                Dictionary <double, int> uDic = (Dictionary <double, int>)zoneValue[5];
                                                int cntVl = 0;
                                                if (uDic.TryGetValue(v, out cntVl))
                                                {
                                                    uDic[v] = cntVl += 1;
                                                }
                                                else
                                                {
                                                    uDic.Add(v, 1);
                                                }
                                                zoneValue[5] = uDic;
                                            }
                                            zoneValueDic[z] = zoneValue;
                                        }
                                        else
                                        {
                                            zoneValue    = new object[6];
                                            zoneValue[0] = 1d;
                                            zoneValue[1] = v;
                                            zoneValue[2] = v;
                                            zoneValue[3] = v;
                                            zoneValue[4] = v * v;
                                            if (makeDic)
                                            {
                                                Dictionary <double, int> uDic = new Dictionary <double, int>();
                                                uDic.Add(v, 1);
                                                zoneValue[5] = uDic;
                                            }
                                            zoneValueDic.Add(z, zoneValue);
                                        }
                                    }
                                }
                            }
                        }
                    }

                    //do this at the end
                    zclm = zclm + cW;
                    vclm = vclm + cW;
                    zPntLoc.SetCoords(zclm, zrw);
                    vPntLoc.SetCoords(vclm, vrw);
                }
                zrw = zrw + rH;
                vrw = vrw + rH;
                //reset PixelBlock columns
                zclm = ozclm;
                vclm = ovclm;
                zPntLoc.SetCoords(zclm, zrw);
                vPntLoc.SetCoords(vclm, vrw);
            }
        }
Esempio n. 2
0
        private void calcZoneValuesFtr()
        {
            //Console.WriteLine("made it to the feature calculations");
            bool makeDic = (ZoneClassCount || ZoneTypes.Contains(rasterUtil.zoneType.VARIETY) || ZoneTypes.Contains(rasterUtil.zoneType.ENTROPY) || ZoneTypes.Contains(rasterUtil.zoneType.ASM) || ZoneTypes.Contains(rasterUtil.zoneType.MINORITY) || ZoneTypes.Contains(rasterUtil.zoneType.MODE) || ZoneTypes.Contains(rasterUtil.zoneType.MEDIAN));
            //
            //HashSet<byte> hByt = new HashSet<byte>();
            //
            ISpatialReference sr     = vRs.RasterInfo.SpatialReference;
            IEnvelope         vrsEnv = vRs.RasterInfo.Extent;
            ISpatialFilter    spFilt = new SpatialFilterClass();

            spFilt.SpatialRel    = esriSpatialRelEnum.esriSpatialRelIntersects;
            spFilt.Geometry      = vrsEnv;
            spFilt.GeometryField = ftrCls.ShapeFieldName;
            IFeatureCursor fCur      = ftrCls.Search(spFilt, true);
            int            zoneIndex = fCur.FindField(InZoneField);
            IFeature       ftr       = fCur.NextFeature();

            while (ftr != null)
            {
                IGeometry geo  = ftr.Shape;
                double    z    = System.Convert.ToDouble(ftr.get_Value(zoneIndex));
                IPolygon4 poly = (IPolygon4)geo;
                if (needToProject)
                {
                    poly.Project(sr);
                }
                IGeometryBag        geoBag  = poly.ExteriorRingBag;
                IGeometryCollection geoColl = (IGeometryCollection)geoBag;
                for (int g = 0; g < geoColl.GeometryCount; g++)
                {
                    IGeometry geo2                  = geoColl.Geometry[g];
                    IFunctionRasterDataset rs       = rsUtil.clipRasterFunction(vRs, geo2, esriRasterClippingType.esriRasterClippingOutside);
                    IEnvelope             rsEnv     = rs.RasterInfo.Extent;
                    IRasterFunctionHelper rsFHelper = new RasterFunctionHelperClass();
                    rsFHelper.Bind(rs);
                    //Console.WriteLine((rsEnv.Width / 30).ToString() + ", " + (rsEnv.Height / 30).ToString());
                    IRasterCursor rsCur = ((IRaster2)rsFHelper.Raster).CreateCursorEx(null);
                    do
                    {
                        IPixelBlock pb = rsCur.PixelBlock;
                        for (int p = 0; p < pb.Planes; p++)
                        {
                            zoneValueDic = zoneValueDicArr[p];
                            object[] zoneValue;
                            double   cnt   = 0;
                            double   maxVl = Double.MinValue;
                            double   minVl = Double.MaxValue;
                            double   s     = 0;
                            double   s2    = 0;
                            Dictionary <double, int> uDic = null;
                            if (zoneValueDic.TryGetValue(z, out zoneValue))
                            {
                                cnt   = System.Convert.ToDouble(zoneValue[0]);
                                maxVl = System.Convert.ToDouble(zoneValue[1]);
                                minVl = System.Convert.ToDouble(zoneValue[2]);
                                s     = System.Convert.ToDouble(zoneValue[3]);
                                s2    = System.Convert.ToDouble(zoneValue[4]);
                                uDic  = (Dictionary <double, int>)zoneValue[5];
                            }
                            else
                            {
                                zoneValue    = new object[6];
                                zoneValue[0] = cnt;
                                zoneValue[1] = maxVl;
                                zoneValue[2] = minVl;
                                zoneValue[3] = s;
                                zoneValue[4] = s2;
                                uDic         = null;
                                if (makeDic)
                                {
                                    uDic = new Dictionary <double, int>();
                                }
                                zoneValue[5] = uDic;
                            }
                            for (int r = 0; r < pb.Height; r++)
                            {
                                for (int c = 0; c < pb.Width; c++)
                                {
                                    object vlo = pb.GetVal(p, c, r);
                                    if (vlo == null)
                                    {
                                        continue;
                                    }
                                    else
                                    {
                                        double vl = System.Convert.ToDouble(vlo);
                                        cnt++;
                                        if (vl > maxVl)
                                        {
                                            maxVl = vl;
                                        }
                                        if (vl < minVl)
                                        {
                                            minVl = vl;
                                        }
                                        s  += vl;
                                        s2 += vl * vl;
                                        if (makeDic)
                                        {
                                            int cntVl = 0;
                                            if (uDic.TryGetValue(vl, out cntVl))
                                            {
                                                uDic[vl] = cntVl += 1;
                                            }
                                            else
                                            {
                                                uDic.Add(vl, 1);
                                            }
                                        }
                                    }
                                }
                            }
                            zoneValue[0]    = cnt;
                            zoneValue[1]    = maxVl;
                            zoneValue[2]    = minVl;
                            zoneValue[3]    = s;
                            zoneValue[4]    = s2;
                            zoneValue[5]    = uDic;
                            zoneValueDic[z] = zoneValue;
                        }
                    } while (rsCur.Next());
                    System.Runtime.InteropServices.Marshal.ReleaseComObject(rsCur);
                }
                ftr = fCur.NextFeature();
            }
            System.Runtime.InteropServices.Marshal.ReleaseComObject(fCur);
        }