/// <summary>
/// Parses ASCII file.
/// </summary>
public static IEnumerable <Chunk> Chunks(string filename, Token[] lineDefinition, ParseConfig config)
{
Chunk?lineParser(byte[] buffer, int count, double filterDist)
=> LineParsers.Custom(buffer, count, filterDist, lineDefinition);
return(Parsing.AsciiLines(lineParser, filename, config));
}
/// <summary>
/// Parses ASCII stream.
/// </summary>
public static IEnumerable <Chunk> Chunks(this Stream stream, long streamLengthInBytes, Token[] lineDefinition, ParseConfig config)
{
Chunk?lineParser(byte[] buffer, int count, double filterDist)
=> LineParsers.Custom(buffer, count, filterDist, lineDefinition);
return(Parsing.AsciiLines(lineParser, stream, streamLengthInBytes, config));
}
private static void ParseAscii_Int_Test(string txt, int result)
{
var buffer = Encoding.ASCII.GetBytes(txt);
var layout = new[] { Token.Intensity };
var data = LineParsers.Custom(buffer, buffer.Length, 0.0, layout);
Assert.IsTrue(data.HasValue && data.Value.Count == 1);
Assert.IsTrue(data.Value.Intensities[0] == result);
}
private static void ParseAscii_Float64_Test(string txt, double result)
{
var buffer = Encoding.ASCII.GetBytes(txt);
var layout = new[] { Token.PositionX };
var data = LineParsers.Custom(buffer, buffer.Length, 0.0, layout);
Assert.IsTrue(data.HasValue && data.Value.Count == 1);
Assert.IsTrue(data.Value.Positions[0].X.ApproximateEquals(result, 10e-15));
}
public void ParseAscii_XYZIRGB_PartialXYZR()
{
var txt = @"
1.2 3.4 5.6 8765 8
";
var buffer = Encoding.ASCII.GetBytes(txt);
var data = LineParsers.XYZIRGB(buffer, buffer.Length, 0.0);
Assert.IsTrue(!data.HasValue);
}
public void ParseAscii_Custom_Intensity()
{
var txt = @"31415";
var buffer = Encoding.ASCII.GetBytes(txt);
var layout = new[] { Token.Intensity };
var data = LineParsers.Custom(buffer, buffer.Length, 0.0, layout);
Assert.IsTrue(data.HasValue && data.Value.Count == 1);
Assert.IsTrue(data.Value.Intensities[0] == 31415);
}
public void ParseAscii_Custom_Normal()
{
var txt = @"0.0 0.1 0.8";
var buffer = Encoding.ASCII.GetBytes(txt);
var layout = new[] { Token.NormalX, Token.NormalY, Token.NormalZ };
var data = LineParsers.Custom(buffer, buffer.Length, 0.0, layout);
Assert.IsTrue(data.HasValue && data.Value.Count == 1);
Assert.IsTrue(data.Value.Normals[0] == new V3f(0.0, 0.1, 0.8));
}
public void ParseAscii_Custom_ColorFloat()
{
var txt = @"0.0 0.5 1.0 0.8";
var buffer = Encoding.ASCII.GetBytes(txt);
var layout = new[] { Token.ColorRf, Token.ColorGf, Token.ColorBf, Token.ColorAf };
var data = LineParsers.Custom(buffer, buffer.Length, 0.0, layout);
Assert.IsTrue(data.HasValue && data.Value.Count == 1);
Assert.IsTrue(data.Value.Colors[0] == new C4b(0, 127, 255, 204));
}
public void ParseAscii_Custom_Color()
{
var txt = @"7 42 255 127";
var buffer = Encoding.ASCII.GetBytes(txt);
var layout = new[] { Token.ColorR, Token.ColorG, Token.ColorB, Token.ColorA };
var data = LineParsers.Custom(buffer, buffer.Length, 0.0, layout);
Assert.IsTrue(data.HasValue && data.Value.Count == 1);
Assert.IsTrue(data.Value.Colors[0] == new C4b(7, 42, 255, 127));
}
public void ParseAscii_Custom_Position()
{
var txt = @"1.2 3.4 5.6";
var buffer = Encoding.ASCII.GetBytes(txt);
var layout = new[] { Token.PositionX, Token.PositionY, Token.PositionZ };
var data = LineParsers.Custom(buffer, buffer.Length, 0.0, layout);
Assert.IsTrue(data.HasValue && data.Value.Count == 1);
Assert.IsTrue(data.Value.Positions[0] == new V3d(1.2, 3.4, 5.6));
}
public void ParseAscii_SingleLine_WithSkip()
{
var txt = @"1.2 3.4 5.6 8 254 97 6543 0.1 0.2 0.3";
var buffer = Encoding.ASCII.GetBytes(txt);
var layout = new[] { Token.PositionX, Token.PositionY, Token.PositionZ, Token.ColorR, Token.ColorG, Token.ColorB, Token.Skip, Token.NormalX, Token.NormalY, Token.NormalZ };
var data = LineParsers.Custom(buffer, buffer.Length, 0.0, layout);
Assert.IsTrue(data.HasValue && data.Value.Count == 1);
Assert.IsTrue(data.Value.Positions[0] == new V3d(1.2, 3.4, 5.6));
Assert.IsTrue(data.Value.Colors[0] == new C4b(8, 254, 97));
Assert.IsTrue(data.Value.Normals[0] == new V3f(0.1, 0.2, 0.3));
}
public void ParseAscii_XYZRGB_0()
{
var txt = @"
1.2 3.4 5.6 8 254 97
";
var buffer = Encoding.ASCII.GetBytes(txt);
var data = LineParsers.XYZRGB(buffer, buffer.Length, 0.0);
Assert.IsTrue(data.HasValue && data.Value.Count == 1);
Assert.IsTrue(data.Value.Positions[0] == new V3d(1.2, 3.4, 5.6));
Assert.IsTrue(data.Value.Colors[0] == new C4b(8, 254, 97));
}
public void ParseAscii_XYZRGB_PartialLinesAreSkipped()
{
var txt = @"
8.2 3.4 5.6
1.2 3.4 5.6 10 20 30
9.2 3.4 5.6
";
var buffer = Encoding.ASCII.GetBytes(txt);
var data = LineParsers.XYZRGB(buffer, buffer.Length, 0.0);
Assert.IsTrue(data.HasValue && data.Value.Count == 1);
Assert.IsTrue(data.Value.Positions[0] == new V3d(1.2, 3.4, 5.6));
Assert.IsTrue(data.Value.Colors[0] == new C4b(10, 20, 30));
}
private static void ParseAscii_FloatColor_Test(string txt, int result, bool isInvalid)
{
var buffer = Encoding.ASCII.GetBytes(txt);
var layout = new[] { Token.ColorRf };
var data = LineParsers.Custom(buffer, buffer.Length, 0.0, layout);
if (isInvalid)
{
Assert.IsTrue(!data.HasValue);
}
else
{
Assert.IsTrue(data.HasValue && data.Value.Count == 1);
Assert.IsTrue(data.Value.Colors[0].R == result);
}
}
public void ParseAscii_EmptyLinesIntermediate()
{
var txt = @"
1.2 3.4 5.6
5.5 6.6 7.7
";
var buffer = Encoding.ASCII.GetBytes(txt);
var layout = new[] { Token.PositionX, Token.PositionY, Token.PositionZ };
var data = LineParsers.Custom(buffer, buffer.Length, 0.0, layout);
Assert.IsTrue(data.HasValue && data.Value.Count == 2);
Assert.IsTrue(data.Value.Positions[0] == new V3d(1.2, 3.4, 5.6));
Assert.IsTrue(data.Value.Positions[1] == new V3d(5.5, 6.6, 7.7));
}
