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* Added "HiRAW" mode export for generating as precise outputs as possible in the .RAW format. Ideal for exporting a heightmap to a simulator only capable of reading the RAW format. If you are exporting between OpenSim regions, use F64 instead.

Sugilite
Adam Frisby 2007-07-02 16:04:50 +00:00
parent fcabdab7bc
commit 858e232cec
1 changed files with 80 additions and 1 deletions
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81
OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs
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@ -192,7 +192,7 @@ namespace OpenSim.Region.Terrain
resultText += "terrain voronoi <points> <blocksize> - generates a worley fractal with X points per block";
resultText += "terrain seed <seed> - sets the random seed value to <seed>\n";
resultText += "terrain load <type> <filename> - loads a terrain from disk, type can be 'F32', 'F64', 'RAW' or 'IMG'\n";
resultText += "terrain save <type> <filename> - saves a terrain to disk, type can be 'F32', 'F64' or 'PNG'\n";
resultText += "terrain save <type> <filename> - saves a terrain to disk, type can be 'F32', 'F64', 'PNG', 'RAW' or 'HIRAW'\n";
resultText += "terrain save grdmap <filename> <gradient map> - creates a PNG snapshot of the region using a named gradient map\n";
resultText += "terrain rescale <min> <max> - rescales a terrain to be between <min> and <max> meters high\n";
resultText += "terrain erode aerobic <windspeed> <pickupmin> <dropmin> <carry> <rounds> <lowest>\n";
@ -295,6 +295,10 @@ namespace OpenSim.Region.Terrain
writeToFileRAW(args[2]);
break;
case "hiraw":
writeToFileHiRAW(args[2]);
break;
default:
resultText = "Unknown image or data format";
return false;
@ -532,6 +536,7 @@ namespace OpenSim.Region.Terrain
/// <summary>
/// A very fast LL-RAW file output mechanism - lower precision mechanism but wont take 5 minutes to run either.
/// (is also editable in an image application)
/// </summary>
/// <param name="filename">Filename to write to</param>
public void writeToFileRAW(string filename)
@ -594,6 +599,80 @@ namespace OpenSim.Region.Terrain
s.Close();
}
/// <summary>
/// Outputs to a LL compatible RAW in the most efficient manner possible
/// </summary>
/// <remarks>Does not calculate the revert map</remarks>
/// <param name="filename">The filename to output to</param>
public void writeToFileHiRAW(string filename)
{
System.IO.FileInfo file = new System.IO.FileInfo(filename);
System.IO.FileStream s = file.Open(System.IO.FileMode.CreateNew, System.IO.FileAccess.Write);
System.IO.BinaryWriter bs = new System.IO.BinaryWriter(s);
// Generate a smegging big lookup table to speed the operation up (it needs it)
double[] lookupTable = new double[65536];
int i, j, x, y;
for (i = 0; i < 256; i++)
{
for (j = 0; j < 256; j++)
{
lookupTable[i + (j * 256)] = ((double)i * ((double)j / 127.0));
}
}
// Output the calculated raw
for (x = 0; x < w; x++)
{
for (y = 0; y < h; y++)
{
double t = heightmap.get(x, y);
double min = double.MaxValue;
int index = 0;
for (i = 0; i < 65536; i++)
{
if (Math.Abs(t - lookupTable[i]) < min)
{
min = Math.Abs(t - lookupTable[i]);
index = i;
}
}
byte red = (byte)(index & 0xFF);
byte green = (byte)((index >> 8) & 0xFF);
byte blue = (byte)watermap.get(x, y);
byte alpha1 = 0; // Land Parcels
byte alpha2 = 0; // For Sale Land
byte alpha3 = 0; // Public Edit Object
byte alpha4 = 0; // Public Edit Land
byte alpha5 = 255; // Safe Land
byte alpha6 = 255; // Flying Allowed
byte alpha7 = 255; // Create Landmark
byte alpha8 = 255; // Outside Scripts
byte alpha9 = red;
byte alpha10 = green;
bs.Write(red);
bs.Write(green);
bs.Write(blue);
bs.Write(alpha1);
bs.Write(alpha2);
bs.Write(alpha3);
bs.Write(alpha4);
bs.Write(alpha5);
bs.Write(alpha6);
bs.Write(alpha7);
bs.Write(alpha8);
bs.Write(alpha9);
bs.Write(alpha10);
}
}
bs.Close();
s.Close();
}
/// <summary>
/// Sets the random seed to be used by procedural functions which involve random numbers.
/// </summary>