private static void writeWmfAuxPixelData(EndianBinaryWriter writer, WmfFile file, WmfPixelInfo pixel)
{
if (file.header.auxDataType > 0)
{
writer.Write(pixel.waterTypeId);
writer.Write(pixel.waterBodyIndex);
}
}
public void saveFile(string fileName, WmfFile file)
{
Stream fs = null;
EndianBinaryWriter writer = null;
try
{
debugLine("file name: " + fileName);
fs = Util.openStream(fileName, FileFormat.UNCOMPRESSED, FileMode.Create);
writer = Util.createEndianBinaryWriterForStream(fs);
writeWmfHeader(writer, file);
writeWmfData(writer, file);
}
catch (Exception ex)
{
throw ex;
}
finally
{
if (writer != null)
{
writer.Close();
}
setDebug(false, null);
}
}
public WmfWaterMap(string filename)
{
L3dtFileManager.L3dtFileManager hfzManager = new L3dtFileManager.L3dtFileManager();
if (filename.EndsWith(".wmf"))
{
this.file = hfzManager.loadWmfFile(filename);
}
else
{
throw new Exception("Not a Wmf map file");
}
}
public WmfFile loadFile(string fileName)
{
WmfFile file = new WmfFile();
Stream fs = null;
EndianBinaryReader reader = null;
try
{
debugLine("file name: " + fileName);
//create a file stream to work with during load
fs = Util.openStream(fileName, FileFormat.UNCOMPRESSED, FileMode.Open);
reader = Util.createEndianBinaryReaderForStream(fs);
WmfHeader header = readWmfHeader(reader);
file.header = header;
if (header.tileSize <= 1)
{
readConventionalData(reader, header, file);
}
else
{
readTiledData(reader, header, file);
}
}
catch (Exception ex)
{
throw ex;
}
finally
{
reader.Close();
if (debug)
{
writeLog.Close();
}
setDebug(false, null);
}
return file;
}
private void writeWmfHeader(EndianBinaryWriter writer, WmfFile file)
{
WmfHeader header = file.header;
writer.Write(Util.StringToByteArray("L3DT", 4));
ushort fileType = 600;
writer.Write(fileType);
writer.Write(Util.StringToByteArray("WMF_v1.0", 8));
writer.Write(header.dataOffset);
writer.Write(header.width);
writer.Write(header.height);
writer.Write(header.waterLevelDataSize);
writer.Write(header.floatingPointFlag == true ? (byte)1 : (byte)0);
writer.Write(header.verticalScale);
writer.Write(header.verticalOffset);
writer.Write(header.horizontalScale);
writer.Write(header.tileSize);
writer.Write(header.wrapFlag == true ? (byte)1 : (byte)0);
writer.Write((byte)0);
writer.Write(header.auxDataType);
writer.Write(header.auxDataSize);
writer.Write(header.auxReserved);
}
private void writeWmfData(EndianBinaryWriter writer, WmfFile file)
{
float minalt = findMinAltitude(file.pixels);
debugLine("minalt: " + minalt);
float maxalt = findMaxAltitude(file.pixels);
debugLine("maxalt: " + maxalt);
float vertScale, formulaResult;
foreach (WmfPixelInfo pixel in file.pixels)
{
if (file.header.floatingPointFlag)
{
formulaResult = ((pixel.data - 0) / 1);
if (pixel.waterTypeId == 0)
{
formulaResult = (float)-1E10;
}
debugLine("v: " + formulaResult);
writer.Write(formulaResult);
writeWmfAuxPixelData(writer, file, pixel);
}
else
{
switch (file.header.waterLevelDataSize)
{
case 2:
vertScale = (maxalt - minalt) / 65535;
debugLine("vertScale: " + vertScale);
formulaResult = (pixel.data - minalt) / vertScale;
if (pixel.waterTypeId == 0)
{
formulaResult = 0.0f;
}
else if (formulaResult < 0.0f)
{
formulaResult = 0.0f;
}
else if(formulaResult > 65535)
{
formulaResult = 65535.0f;
}
debugLine("v: " + formulaResult);
writer.Write(Convert.ToUInt16(formulaResult));
writeWmfAuxPixelData(writer, file, pixel);
break;
default: throw new Exception("Wrong datasize for pixel at x: " + pixel.x + ", y: " + pixel.y);
}
}
}
}
private void readWmfValue(EndianBinaryReader reader, WmfHeader header, WmfFile file, uint xLocation, uint yLocation)
{
float value = readValueFromReader(reader, header, xLocation, yLocation);
if (header.auxDataSize > 0)
{
byte waterTypeId = reader.ReadByte();
ushort waterBodyIndex = reader.ReadUInt16();
file.addPixel(new WmfPixelInfo(xLocation, yLocation, value, waterTypeId, waterBodyIndex));
}
else
{
file.addPixel(new WmfPixelInfo(xLocation, yLocation, value));
}
}
private void readTiledData(EndianBinaryReader reader, WmfHeader header, WmfFile file)
{
validateTileSizeForDimensions(header);
uint horizontalTiles = header.width / header.tileSize;
uint verticalTiles = header.height / header.tileSize;
for (int y = 0; y < verticalTiles; y++)
{
for (int x = 0; x < horizontalTiles; x++)
{
readTile(x, y, header, reader, file);
}
}
}
private void readTile(int x, int y, WmfHeader header, EndianBinaryReader reader, WmfFile file)
{
for (int j = 1; j <= header.tileSize; j++)
{
for (int i = 1; i <= header.tileSize; i++)
{
uint xLocation = (uint)((x * header.tileSize) + i);
uint yLocation = (uint)((y * header.tileSize) + j);
readWmfValue(reader, header, file, xLocation, yLocation);
}
}
}
private void readConventionalData(EndianBinaryReader reader, WmfHeader header, WmfFile file)
{
uint totalPixels = header.width * header.height;
uint xLocation = 1;
uint yLocation = 1;
for (int i = 0; i < totalPixels; i++)
{
readWmfValue(reader, header, file, xLocation, yLocation);
xLocation++;
if (xLocation > header.width)
{
xLocation = 1;
yLocation++;
}
}
debugLine("pixel count: " + file.pixels.Count());
}
public override void Dispose()
{
this.file = null;
}
public void saveWmfFile(string fileName, WmfFile file)
{
wmfManager.saveFile(fileName, file);
}