public GraphicStreamContainer Parse()
{
int triangleCount = Convert.ToInt32(
mTriangleElement.Attribute("count").Value,
CultureInfo.InvariantCulture);
var allIndices = ParseUIntArray(mTriangleElement.Element(
ColladaImporter.Namespace + "p"));
var segmentLenght = allIndices.Count() / triangleCount / 3;
var container = new GraphicStreamContainer();
var indices = allIndices.EachNthElement(segmentLenght).ToArray();
container.Create(GraphicStreamUsage.Index, indices);
var vertexCount = (int)indices.Max() + 1;
var inputs = ParseInputs();
foreach (var input in inputs)
{
var usage = SemanticHelper.GetUsageForSemantic(input.Semantic);
var data = new SourceParser(input.SourceElement).Parse();
if (usage != GraphicStreamUsage.Position)
{
var specificIndices = allIndices.EachNthElement(
segmentLenght, input.Offset).ToArray();
var newData = new float[vertexCount][];
for (int i = 0; i < indices.Length; i++)
{
var positionIndex = (int)indices[i];
newData[positionIndex] = data.ElementAt((int)specificIndices[i]);
}
data = newData;
}
var elementLength = data.First().Length;
switch (elementLength)
{
case 2:
container.Create(usage,
data.Select(element => new Vector2(element)).ToArray());
break;
case 3:
container.Create(usage,
data.Select(element => new Vector3(element)).ToArray());
break;
case 4:
container.Create(usage,
data.Select(element => new Vector4(element)).ToArray());
break;
}
}
return container;
}
public void Parse_for_Normals()
{
var sourceElement = mMesh.Elements()
.Where(s => s.Attribute("id").Value == "Plane-Geometry-Normals")
.FirstOrDefault();
Assert.IsNotNull(sourceElement);
var sourceParser = new SourceParser(sourceElement);
var normals = sourceParser.Parse();
Assert.IsNotNull(normals);
var expected = new[]
{
new[] { 0f, 0f, 1f },
new[] { 0f, 0f, 1f },
};
Assert.AreElementsEqual(expected, normals.ToArray());
}
public void Parse_for_Positions()
{
var sourceElement = mMesh.Elements()
.Where(s => s.Attribute("id").Value == "Plane-Geometry-Position")
.FirstOrDefault();
Assert.IsNotNull(sourceElement);
var sourceParser = new SourceParser(sourceElement);
var positions = sourceParser.Parse();
Assert.IsNotNull(positions);
var expected = new[]
{
new[] { 1f, 1f, 0f },
new[] { 1f, -1f, 0f },
new[] { -1f, -1f, 0f },
new[] { -1f, 1f, 0f }
};
Assert.AreElementsEqual(expected, positions.ToArray());
}
public void Parse_for_Colors()
{
var sourceElement = mMesh.Elements()
.Where(s => s.Attribute("id").Value == "Plane-Geometry-color")
.FirstOrDefault();
Assert.IsNotNull(sourceElement);
var sourceParser = new SourceParser(sourceElement);
var texCoords = sourceParser.Parse();
Assert.IsNotNull(texCoords);
var expected = new[]
{
new[] { 1f, 1f, 1f, 1f },
new[] { 1f, 1f, 1f, 1f },
new[] { 1f, 1f, 1f, 1f },
new[] { 1f, 1f, 1f, 1f },
new[] { 1f, 1f, 1f, 1f },
new[] { 1f, 1f, 1f, 1f },
};
Assert.AreElementsEqual(expected, texCoords.ToArray());
}