public PrimVisualCylinder(OpenMetaverse.Primitive prim)
: base(prim)
{
NumberFaces = 1;
FirstOuterFace = 0;
LastOuterFace = 0;
OuterFaces = new CrossSection[1];
OuterFaces[0] = new CrossSection();
if (prim.PrimData.ProfileHollow != 0)
{
hollow = true;
InnerFaces = new CrossSection[1];
InnerFaces[0] = new CrossSection();
//for (int i = 0; i < 4; i++)
//{
// InnerFaces[i] = new CrossSection();
//}
}
if (prim.PrimData.ProfileBegin != 0 || prim.PrimData.ProfileEnd != 1)
{
cut = true;
CutFaces = new CrossSection[2];
for (int i = 0; i < 2; i++)
{
CutFaces[i] = new CrossSection();
}
}
BuildFaces();
}
// Handles the first face in the cut, starting from cutstart,
// and running anticlockwise to first reference vertex
private float PopulateSingleCutFacePositiveDirection(ref CrossSection face, OpenMetaverse.Vector3 cutPoint, int quadrant,
float halfCubeWidth, bool outer)
{
V3ToV3Xna XnaOMV = new V3ToV3Xna();
quadrant = NormalizeQuadrant(quadrant);
face.RemoveAllPoints();
OpenMetaverse.Vector3 startPoint = cutPoint;
OpenMetaverse.Vector3 endPoint;
if (quadrant < NumberFaces - 1)
{
endPoint = XnaOMV.V3XToV3(ReferenceVertices[quadrant + 1] * halfCubeWidth / 0.5f);
}
else
{
endPoint = XnaOMV.V3XToV3(ReferenceVertices[0] * halfCubeWidth / 0.5f);
}
if (outer)
{
face.AddPoint(startPoint);
face.AddPoint(endPoint);
}
else
{
face.AddPoint(endPoint);
face.AddPoint(startPoint);
}
return OpenMetaverse.Vector3.Distance(startPoint, endPoint);
}
private float PopulateCompleteSide(ref CrossSection face, int quadrant, float halfCubeWidth, bool outer)
{
V3ToV3Xna XnaOMV = new V3ToV3Xna();
quadrant = NormalizeQuadrant(quadrant);
face.RemoveAllPoints();
OpenMetaverse.Vector3 startPoint = XnaOMV.V3XToV3(ReferenceVertices[quadrant]);
OpenMetaverse.Vector3 endPoint;
if (quadrant < NumberFaces - 1)
{
endPoint = XnaOMV.V3XToV3(ReferenceVertices[quadrant + 1]);
}
else
{
endPoint = XnaOMV.V3XToV3(ReferenceVertices[0]);
}
startPoint = startPoint * halfCubeWidth / 0.5f;
endPoint = endPoint * halfCubeWidth / 0.5f;
if (outer)
{
face.AddPoint(startPoint);
face.AddPoint(endPoint);
}
else
{
face.AddPoint(endPoint);
face.AddPoint(startPoint);
}
return 2f * halfCubeWidth;
}
protected void BuildSideVertexes(CrossSection[] crossSection, int transforms)
{
V3ToV3Xna XnaOMV = new V3ToV3Xna();
float transformOffset = 1.0f / (float)transforms;
float currentOffset = -0.5f;
for (int i = 0; i < transforms; i++)
{
for (int j = 0; j < crossSection.Length; j++)
{
int pointCount = crossSection[j].GetNumPoints();
if (pointCount > 0)
{
for (int k = 0; k < pointCount - 1; k++)
{
Vector3 lower1, lower2, upper1, upper2;
float lowerRatio = (float)i / (float)transforms;
float upperRatio = (float)(i + 1) / (float)transforms;
lower1 = XnaOMV.V3ToV3X(crossSection[j].GetRawVertex(k));
lower2 = XnaOMV.V3ToV3X(crossSection[j].GetRawVertex(k + 1));
lower1.Z = currentOffset;
lower2.Z = currentOffset;
upper1 = lower1;
upper2 = lower2;
upper1.Z = currentOffset + transformOffset;
upper2.Z = currentOffset + transformOffset;
lower1 = Transform(lower1, lowerRatio);
lower2 = Transform(lower2, lowerRatio);
upper1 = Transform(upper1, upperRatio);
upper2 = Transform(upper2, upperRatio);
Vertexes.Add(new VertexPositionColor(lower1, color));
Vertexes.Add(new VertexPositionColor(lower2, color));
Vertexes.Add(new VertexPositionColor(upper2, color));
Vertexes.Add(new VertexPositionColor(lower1, color));
Vertexes.Add(new VertexPositionColor(upper2, color));
Vertexes.Add(new VertexPositionColor(upper1, color));
}
}
}
currentOffset += transformOffset;
}
}