/// <summary>
/// Builds a mesh from a spline's approximation points (2D)
/// </summary>
/// <param name="spline">the spline to use</param>
/// <param name="ignoreAxis">the axis to ignore (0=x,1=y,2=z)</param>
/// <param name="close">True to create a mesh with triangles, False to create a vertex line mesh</param>
/// <param name="msh"></param>
public static Mesh CreateSplineMesh(CurvySpline spline, int ignoreAxis, bool close, Mesh msh = null)
{
Vector3[] verts = spline.GetApproximation(true);
if (spline.Closed)
{
CurvySplineSegment.Resize(ref verts, verts.Length - 1);
}
return(buildSplineMesh(verts, ignoreAxis, !close, msh));
}
/// <summary>
/// Internal, don't call directly
/// </summary>
public void _InitializeControlPoint()
{
//mNextControlPoint = NextControlPoint;
mStepSize = 1f / Spline.Granularity;
mControlPointIndex = Spline.ControlPoints.IndexOf(this);
Approximation = new Vector3[0];
ApproximationDistances = new float[0];
ApproximationUp = new Vector3[0];
ApproximationT = new Vector3[0];
if (UserValues.Length != Spline.UserValueSize)
{
CurvySplineSegment.Resize(ref UserValues, Spline.UserValueSize);
}
}
public MeshInfo(Mesh mesh, bool calculateLoops, bool mirror)
{
if (mirror)
{
mesh = MirrorMesh(mesh);
}
Vector3[] vt = mesh.vertices;
Vector2[] uv = mesh.uv;
int[] tri = mesh.triangles;
// Fill data arrays
Vertices = new Vector3[vt.Length];
UVs = new Vector2[uv.Length];
Triangles = new int[tri.Length];
vt.CopyTo(Vertices, 0);
uv.CopyTo(UVs, 0);
tri.CopyTo(Triangles, 0);
if (calculateLoops)
{
// Build Edge Loops
EdgeLoops = MeshHelper.BuildEdgeLoops(MeshHelper.BuildManifoldEdges(mesh));
// Fill Outline Data
EdgeVertices = new Vector3[vt.Length];
EdgeUV = new Vector2[uv.Length];
int minIndex = int.MaxValue;
int vertsUsed = 0;
foreach (EdgeLoop loop in EdgeLoops)
{
for (int vi = 0; vi < loop.vertexCount; vi++)
{
EdgeVertices[vertsUsed + vi] = vt[loop.vertexIndex[vi]];
EdgeUV[vertsUsed + vi] = uv[loop.vertexIndex[vi]];
minIndex = Mathf.Min(minIndex, loop.vertexIndex[vi]);
}
vertsUsed += loop.vertexCount;
}
// modify EdgeLoops' indices (we need to address changed indices by omitting non-outlined edges
foreach (EdgeLoop loop in EdgeLoops)
{
loop.ShiftIndices(-minIndex);
}
CurvySplineSegment.Resize(ref EdgeVertices, vertsUsed);
CurvySplineSegment.Resize(ref EdgeUV, vertsUsed);
}
}
