/// <summary>
/// Set the position of the object frame for this SO without moving the mesh in the scene.
/// The input frame is the new object frame. So, this is a frame "in scene coordinates" unless
/// this object has a parent SceneObject (ie is not a child of Scene directly). In that case
/// the frame needs to be specified relative to that SO. An easy way to do this is to via
/// obj_pivot = GetLocalFrame(Object).FromFrame( SceneTransforms.SceneToObject(pivot_in_scene) )
/// TODO: specify frame coordpace as input argument?
/// </summary>
public void RepositionPivot(Frame3f objFrame)
{
//if (Parent is FScene == false)
// throw new NotSupportedException("DMeshSO.RepositionMeshFrame: have not tested this!");
Frame3f curFrame = this.GetLocalFrame(CoordSpace.ObjectCoords);
bool bNormals = mesh.HasVertexNormals;
// map vertices to new frame
foreach (int vid in mesh.VertexIndices())
{
Vector3f v = (Vector3f)mesh.GetVertex(vid);
v = curFrame.FromFrameP(ref v);
v = objFrame.ToFrameP(ref v);
mesh.SetVertex(vid, v);
if (bNormals)
{
Vector3f n = mesh.GetVertexNormal(vid);
n = curFrame.FromFrameV(ref n);
n = objFrame.ToFrameV(ref n);
mesh.SetVertexNormal(vid, n);
}
}
// set new object frame
SetLocalFrame(objFrame, CoordSpace.ObjectCoords);
fast_mesh_update(bNormals, false);
post_mesh_modified();
}
public void Precompute_SingleVectorBarycentric()
{
int N = DisplaceMesh.MaxTriangleID;
BaryFaceDisplacements = new BaryDisplace[N];
//foreach ( int vid in DisplaceMesh.VertexIndices() ) {
gParallel.ForEach <int>(DisplaceMesh.VertexIndices(), (vid) => {
Vector3d pos = DisplaceMesh.GetVertex(vid);
int tid = BaseSpatial.FindNearestTriangle(pos);
DistPoint3Triangle3 dist = MeshQueries.TriangleDistance(BaseMesh, tid, pos);
Vector3f dv = (Vector3f)(pos - dist.TriangleClosest);
Frame3f triFrame = BaseMesh.GetTriFrame(tid);
Vector3f relVec = triFrame.ToFrameV(dv);
BaryFaceDisplacements[vid] = new BaryDisplace()
{
tID = tid,
a = (float)dist.TriangleBaryCoords.x,
b = (float)dist.TriangleBaryCoords.y,
c = (float)dist.TriangleBaryCoords.z,
dv = relVec
};
});
}
public static void AppendMeshSO(DMeshSO appendTo, DMeshSO append)
{
FScene scene = appendTo.GetScene();
if (scene.IsSelected(appendTo))
{
scene.Deselect(appendTo);
}
if (scene.IsSelected(append))
{
scene.Deselect(append);
}
Frame3f f1 = appendTo.GetLocalFrame(CoordSpace.ObjectCoords);
Vector3f scale1 = appendTo.GetLocalScale();
Frame3f f2 = append.GetLocalFrame(CoordSpace.ObjectCoords);
Vector3f scale2 = append.GetLocalScale();
DMesh3 mesh1 = appendTo.Mesh;
DMesh3 mesh2 = append.Mesh;
foreach (int vid in mesh2.VertexIndices())
{
// convert point in mesh2 to scene coords
Vector3f v2 = (Vector3f)mesh2.GetVertex(vid);
v2 *= scale2;
Vector3f v2s = f2.FromFrameP(v2);
// transfer that scene coord into local coords of mesh1
Vector3f v2in1 = f1.ToFrameP(v2s);
v2in1 /= scale1;
mesh2.SetVertex(vid, v2in1);
if (mesh1.HasVertexNormals && mesh2.HasVertexNormals)
{
Vector3f n = mesh2.GetVertexNormal(vid);
Vector3f ns = f2.FromFrameV(n);
Vector3f ns2 = f1.ToFrameV(ns);
mesh2.SetVertexNormal(vid, ns2);
}
}
MeshEditor editor = new MeshEditor(mesh1);
editor.AppendMesh(mesh2);
appendTo.NotifyMeshEdited();
// [TODO] change record!
scene.RemoveSceneObject(append, false);
}
public static void ToFrame(IDeformableMesh mesh, Frame3f f)
{
int NV = mesh.MaxVertexID;
bool bHasNormals = mesh.HasVertexNormals;
for (int vid = 0; vid < NV; ++vid)
{
if (mesh.IsVertex(vid))
{
Vector3D v = mesh.GetVertex(vid);
Vector3D vf = f.ToFrameP((Vector3F)v);
mesh.SetVertex(vid, vf);
if (bHasNormals)
{
Vector3F n = mesh.GetVertexNormal(vid);
Vector3F nf = f.ToFrameV(n);
mesh.SetVertexNormal(vid, nf);
}
}
}
}