Ejemplo n.º 1
0
        public void WriteMapTileFile()
        {
            string fileName = _startIndexX + "_" + _startIndexY + "_" + _endIndexX + "_" + _endIndexY + "_" + _zoomLevel +
                              "_" + _mapType + ".map";
            if (File.Exists(fileName))
            {
                File.Delete(fileName);
            }
            FileStream mapFile = new FileStream(fileName, FileMode.CreateNew);
            BinaryWriter writer = new BinaryWriter(mapFile);
            JavaBinaryWriter javaWriter = new JavaBinaryWriter(writer);
            int headSize = 256;
            int levelSize = 1024;
            int howManyTiles = CalculateHowManyTiles() + 10;
            int indexSize = howManyTiles * 8;
            for (int i = 0; i <= headSize + levelSize + indexSize; i++)
                javaWriter.Write((byte)0);
            mapFile.Seek(0, SeekOrigin.Begin);
            javaWriter.Write("GUIDEBEE MAP");
            mapFile.Seek(16, SeekOrigin.Begin);
            javaWriter.Write("JAVA");
            mapFile.Seek(32, SeekOrigin.Begin);
            javaWriter.Write("TILE");
            mapFile.Seek(48, SeekOrigin.Begin);
            javaWriter.Write(_mapType); //PNG type
            int zoomCount = 0;
            for (int zoom = _zoomLevel; zoom < 18; zoom++)
            {
                if (ZoomLevelSelected[zoom])
                {
                    zoomCount++;
                }
            }
            javaWriter.Write(zoomCount);
            javaWriter.Write(-90.0);
            javaWriter.Write(-180.0);
            javaWriter.Write(90.0);
            javaWriter.Write(180.0);
            mapFile.Seek(256, SeekOrigin.Begin);

            int levelOffset = headSize + levelSize;
            int pngOffset = headSize + levelSize + indexSize;
            zoomCount = 0;
            long imageIndex = 0;
            for (int zoom = _zoomLevel; zoom < 18; zoom++)
            {

                if (ZoomLevelSelected[zoom])
                {
                    int zoomPower = (int)Math.Pow(2, zoom - _zoomLevel);

                    int pngLenght;

                    for (int i = _startIndexX * zoomPower; i < (_endIndexX + 1) * zoomPower; i++)
                    {
                        for (int j = _startIndexY * zoomPower; j < (_endIndexY + 1) * zoomPower; j++)
                        {
                            MapTileIndex mapTileIndex = new MapTileIndex();
                            mapTileIndex.MapType = _mapType;
                            mapTileIndex.ZoomLevel =  zoom;
                            mapTileIndex.XIndex = i;
                            mapTileIndex.YIndex = j;

                            byte[] pngImage = _mapTileDownloadManager.GetFromImageCache(mapTileIndex.MapType, mapTileIndex.XIndex, mapTileIndex.YIndex, mapTileIndex.ZoomLevel);
                            int tryCount = 0;
                            bool failed = false;
                            while (pngImage == null && tryCount < 15)
                            {
                                Thread.Sleep(2000);
                                pngImage = _mapTileDownloadManager.GetFromImageCache(mapTileIndex.MapType, mapTileIndex.XIndex, mapTileIndex.YIndex, mapTileIndex.ZoomLevel);
                                tryCount++;
                            }

                            if (pngImage == null)
                            {
                                pngImage = _notavaiablePng;
                                failed = true;

                            }
                            else
                            {
                                _mapTileDownloadManager.RemoveFromImageCache(mapTileIndex.MapType, mapTileIndex.XIndex, mapTileIndex.YIndex, mapTileIndex.ZoomLevel);
                            }

                            pngLenght = pngImage.Length;
                            mapFile.Seek(headSize + levelSize + imageIndex * 8
                                         , SeekOrigin.Begin);
                            javaWriter.Write(pngOffset);
                            javaWriter.Write(pngLenght);
                            mapFile.Seek(pngOffset
                                         , SeekOrigin.Begin);
                            writer.Write(pngImage);
                            pngOffset += pngLenght;
                            if (writingProgressListener!=null)
                            {
                                writingProgressListener.Progress(imageIndex, i, j, zoom, failed);
                            }
                            imageIndex++;

                        }
                    }
                    int levelLength = (_endIndexX + 1 - _startIndexX) * (_endIndexY + 1 - _startIndexY) * zoomPower * zoomPower * 8;
                    //write level offset
                    mapFile.Seek(headSize + zoomCount * 28
                                 , SeekOrigin.Begin);
                    javaWriter.Write(zoom);
                    javaWriter.Write(_startIndexX * zoomPower);
                    javaWriter.Write(_startIndexY * zoomPower);
                    javaWriter.Write((_endIndexX + 1) * zoomPower - 1);
                    javaWriter.Write((_endIndexY + 1) * zoomPower - 1);
                    javaWriter.Write(levelOffset);
                    javaWriter.Write(levelLength);

                    levelOffset += levelLength;
                    zoomCount++;

                }
            }

            javaWriter.Close();
            mapFile.Close();

            if (writingProgressListener != null)
            {
                writingProgressListener.FinishWriting();
            }
        }
Ejemplo n.º 2
0
        public void WriteMapTileFile()
        {
            string fileName = _startIndexX + "_" + _startIndexY + "_" + _endIndexX + "_" + _endIndexY + "_" + _zoomLevel +
                              "_" + _mapType + ".map";

            if (File.Exists(fileName))
            {
                File.Delete(fileName);
            }
            FileStream       mapFile    = new FileStream(fileName, FileMode.CreateNew);
            BinaryWriter     writer     = new BinaryWriter(mapFile);
            JavaBinaryWriter javaWriter = new JavaBinaryWriter(writer);
            int headSize     = 256;
            int levelSize    = 1024;
            int howManyTiles = CalculateHowManyTiles() + 10;
            int indexSize    = howManyTiles * 8;

            for (int i = 0; i <= headSize + levelSize + indexSize; i++)
            {
                javaWriter.Write((byte)0);
            }
            mapFile.Seek(0, SeekOrigin.Begin);
            javaWriter.Write("GUIDEBEE MAP");
            mapFile.Seek(16, SeekOrigin.Begin);
            javaWriter.Write("JAVA");
            mapFile.Seek(32, SeekOrigin.Begin);
            javaWriter.Write("TILE");
            mapFile.Seek(48, SeekOrigin.Begin);
            javaWriter.Write(_mapType); //PNG type
            int zoomCount = 0;

            for (int zoom = _zoomLevel; zoom < 18; zoom++)
            {
                if (ZoomLevelSelected[zoom])
                {
                    zoomCount++;
                }
            }
            javaWriter.Write(zoomCount);
            javaWriter.Write(-90.0);
            javaWriter.Write(-180.0);
            javaWriter.Write(90.0);
            javaWriter.Write(180.0);
            mapFile.Seek(256, SeekOrigin.Begin);

            int levelOffset = headSize + levelSize;
            int pngOffset   = headSize + levelSize + indexSize;

            zoomCount = 0;
            long imageIndex = 0;

            for (int zoom = _zoomLevel; zoom < 18; zoom++)
            {
                if (ZoomLevelSelected[zoom])
                {
                    int zoomPower = (int)Math.Pow(2, zoom - _zoomLevel);

                    int pngLenght;


                    for (int i = _startIndexX * zoomPower; i < (_endIndexX + 1) * zoomPower; i++)
                    {
                        for (int j = _startIndexY * zoomPower; j < (_endIndexY + 1) * zoomPower; j++)
                        {
                            MapTileIndex mapTileIndex = new MapTileIndex();
                            mapTileIndex.MapType   = _mapType;
                            mapTileIndex.ZoomLevel = zoom;
                            mapTileIndex.XIndex    = i;
                            mapTileIndex.YIndex    = j;



                            byte[] pngImage = _mapTileDownloadManager.GetFromImageCache(mapTileIndex.MapType, mapTileIndex.XIndex, mapTileIndex.YIndex, mapTileIndex.ZoomLevel);
                            int    tryCount = 0;
                            bool   failed   = false;
                            while (pngImage == null && tryCount < 15)
                            {
                                Thread.Sleep(2000);
                                pngImage = _mapTileDownloadManager.GetFromImageCache(mapTileIndex.MapType, mapTileIndex.XIndex, mapTileIndex.YIndex, mapTileIndex.ZoomLevel);
                                tryCount++;
                            }

                            if (pngImage == null)
                            {
                                pngImage = _notavaiablePng;
                                failed   = true;
                            }
                            else
                            {
                                _mapTileDownloadManager.RemoveFromImageCache(mapTileIndex.MapType, mapTileIndex.XIndex, mapTileIndex.YIndex, mapTileIndex.ZoomLevel);
                            }

                            pngLenght = pngImage.Length;
                            mapFile.Seek(headSize + levelSize + imageIndex * 8
                                         , SeekOrigin.Begin);
                            javaWriter.Write(pngOffset);
                            javaWriter.Write(pngLenght);
                            mapFile.Seek(pngOffset
                                         , SeekOrigin.Begin);
                            writer.Write(pngImage);
                            pngOffset += pngLenght;
                            if (writingProgressListener != null)
                            {
                                writingProgressListener.Progress(imageIndex, i, j, zoom, failed);
                            }
                            imageIndex++;
                        }
                    }
                    int levelLength = (_endIndexX + 1 - _startIndexX) * (_endIndexY + 1 - _startIndexY) * zoomPower * zoomPower * 8;
                    //write level offset
                    mapFile.Seek(headSize + zoomCount * 28
                                 , SeekOrigin.Begin);
                    javaWriter.Write(zoom);
                    javaWriter.Write(_startIndexX * zoomPower);
                    javaWriter.Write(_startIndexY * zoomPower);
                    javaWriter.Write((_endIndexX + 1) * zoomPower - 1);
                    javaWriter.Write((_endIndexY + 1) * zoomPower - 1);
                    javaWriter.Write(levelOffset);
                    javaWriter.Write(levelLength);

                    levelOffset += levelLength;
                    zoomCount++;
                }
            }

            javaWriter.Close();
            mapFile.Close();

            if (writingProgressListener != null)
            {
                writingProgressListener.FinishWriting();
            }
        }