public static void Restore(DMesh3 mesh, BinaryReader reader)
{
int version = reader.ReadInt32();
if (version != DMesh3Version)
{
throw new Exception("gSerialization.Restore: Incorrect DMesh3Version!");
}
MeshComponents components = (MeshComponents)reader.ReadInt32();
Restore(mesh.VerticesBuffer, reader);
Restore(mesh.TrianglesBuffer, reader);
Restore(mesh.EdgesBuffer, reader);
Restore(mesh.EdgesRefCounts.RawRefCounts, reader);
if ((components & MeshComponents.VertexNormals) != 0)
{
mesh.EnableVertexNormals(Vector3F.AxisY);
Restore(mesh.NormalsBuffer, reader);
}
else
{
mesh.DiscardVertexNormals();
}
if ((components & MeshComponents.VertexColors) != 0)
{
mesh.EnableVertexColors(Vector3F.One);
Restore(mesh.ColorsBuffer, reader);
}
else
{
mesh.DiscardVertexColors();
}
if ((components & MeshComponents.VertexUVs) != 0)
{
mesh.EnableVertexUVs(Vector2F.Zero);
Restore(mesh.UVBuffer, reader);
}
else
{
mesh.DiscardVertexUVs();
}
if ((components & MeshComponents.FaceGroups) != 0)
{
mesh.EnableTriangleGroups(0);
Restore(mesh.GroupsBuffer, reader);
}
else
{
mesh.DiscardTriangleGroups();
}
mesh.RebuildFromEdgeRefcounts();
}
public static void test_local_param()
{
//DMesh3 mesh = TestUtil.LoadTestInputMesh("plane_250v.obj");
//DMesh3 mesh = TestUtil.LoadTestInputMesh("hemisphere_nicemesh_3k.obj");
DMesh3 mesh = TestUtil.LoadTestInputMesh("bunny_open_base.obj");
mesh.EnableVertexUVs(Vector2f.Zero);
DMeshAABBTree3 spatial = new DMeshAABBTree3(mesh);
spatial.Build();
//int tid = spatial.FindNearestTriangle(Vector3d.Zero);
//Frame3f seedF = new Frame3f(Vector3d.Zero, Vector3d.AxisY);
int tid = 3137;
Frame3f seedF = mesh.GetTriFrame(tid);
Index3i seedNbrs = mesh.GetTriangle(tid);
MeshLocalParam param = new MeshLocalParam(mesh.MaxVertexID,
mesh.GetVertexf, mesh.GetVertexNormal, mesh.VtxVerticesItr);
param.ComputeToMaxDistance(seedF, seedNbrs, float.MaxValue);
float fR = param.MaxUVDistance;
param.TransformUV(0.5f / fR, 0.5f * Vector2f.One);
param.ApplyUVs((vid, uv) => { mesh.SetVertexUV(vid, uv); });
TestUtil.SetColorsFromScalarF(mesh, (vid) => { return(param.GetUV(vid).Distance(0.5f * Vector2f.One)); }, new Vector2f(0, 0.5f));
OBJWriter writer = new OBJWriter();
var s = new System.IO.StreamWriter(Program.TEST_OUTPUT_PATH + "mesh_local_param.obj", false);
List <WriteMesh> wm = new List <WriteMesh>()
{
new WriteMesh(mesh)
};
WriteOptions opt = new WriteOptions()
{
bCombineMeshes = false, bWriteGroups = false, bPerVertexColors = true, bPerVertexUVs = true,
AsciiHeaderFunc = () => { return("mttllib checkerboard.mtl\r\nusemtl checkerboard\r\n"); }
};
writer.Write(s, wm, opt);
s.Close();
}
public static void CalculateUVs(this DMesh3 dMesh)
{
dMesh.EnableVertexUVs(Vector2f.Zero);
OrthogonalPlaneFit3 orth = new OrthogonalPlaneFit3(dMesh.Vertices());
Frame3f frame = new Frame3f(orth.Origin, orth.Normal);
AxisAlignedBox3d bounds = dMesh.CachedBounds;
AxisAlignedBox2d boundsInFrame = new AxisAlignedBox2d();
for (int i = 0; i < 8; i++)
{
boundsInFrame.Contain(frame.ToPlaneUV((Vector3f)bounds.Corner(i), 3));
}
Vector2f min = (Vector2f)boundsInFrame.Min;
float width = (float)boundsInFrame.Width;
float height = (float)boundsInFrame.Height;
for (int i = 0; i < dMesh.VertexCount; i++)
{
Vector2f UV = frame.ToPlaneUV((Vector3f)dMesh.GetVertex(i), 3);
UV.x = (UV.x - min.x) / width;
UV.y = (UV.y - min.y) / height;
dMesh.SetVertexUV(i, UV);
}
}
public virtual DMesh3 RestoreDMesh(TypedAttribSet attributes)
{
bool is_compressed = false;
TypedAttribSet meshAttr = find_struct(attributes, IOStrings.BinaryDMeshStruct);
if (meshAttr == null)
{
meshAttr = find_struct(attributes, IOStrings.CompressedDMeshStruct);
is_compressed = true;
}
if (meshAttr == null)
{
throw new Exception("SOFactory.RestoreDMesh: DMesh binary or compressed struct not found!");
}
VectorArray3d v = null;
VectorArray3f n = null, c = null;
VectorArray2f uv = null;
VectorArray3i t = null;
int[] g = null;
IndexArray4i e = null;
short[] e_ref = null;
var storageMode = IOStrings.MeshStorageMode.EdgeRefCounts;
if (meshAttr.ContainsKey(IOStrings.AMeshStorageMode))
{
storageMode = (IOStrings.MeshStorageMode)(int) meshAttr[IOStrings.AMeshStorageMode];
}
if (is_compressed)
{
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshVertices3Compressed))
{
v = meshAttr[IOStrings.AMeshVertices3Compressed] as VectorArray3d;
}
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshNormals3Compressed))
{
n = meshAttr[IOStrings.AMeshNormals3Compressed] as VectorArray3f;
}
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshColors3Compressed))
{
c = meshAttr[IOStrings.AMeshColors3Compressed] as VectorArray3f;
}
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshUVs2Compressed))
{
uv = meshAttr[IOStrings.AMeshUVs2Compressed] as VectorArray2f;
}
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshTrianglesCompressed))
{
t = meshAttr[IOStrings.AMeshTrianglesCompressed] as VectorArray3i;
}
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshTriangleGroupsCompressed))
{
g = meshAttr[IOStrings.AMeshTriangleGroupsCompressed] as int[];
}
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshEdgesCompressed))
{
e = meshAttr[IOStrings.AMeshEdgesCompressed] as IndexArray4i;
}
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshEdgeRefCountsCompressed))
{
e_ref = meshAttr[IOStrings.AMeshEdgeRefCountsCompressed] as short[];
}
}
else
{
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshVertices3Binary))
{
v = meshAttr[IOStrings.AMeshVertices3Binary] as VectorArray3d;
}
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshNormals3Binary))
{
n = meshAttr[IOStrings.AMeshNormals3Binary] as VectorArray3f;
}
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshColors3Binary))
{
c = meshAttr[IOStrings.AMeshColors3Binary] as VectorArray3f;
}
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshUVs2Binary))
{
uv = meshAttr[IOStrings.AMeshUVs2Binary] as VectorArray2f;
}
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshTrianglesBinary))
{
t = meshAttr[IOStrings.AMeshTrianglesBinary] as VectorArray3i;
}
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshTriangleGroupsBinary))
{
g = meshAttr[IOStrings.AMeshTriangleGroupsBinary] as int[];
}
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshEdgesBinary))
{
e = meshAttr[IOStrings.AMeshEdgesBinary] as IndexArray4i;
}
if (check_key_or_debug_print(meshAttr, IOStrings.AMeshEdgeRefCountsBinary))
{
e_ref = meshAttr[IOStrings.AMeshEdgeRefCountsBinary] as short[];
}
}
DMesh3 m = new DMesh3();
if (n != null)
{
m.EnableVertexNormals(Vector3f.Zero);
}
if (c != null)
{
m.EnableVertexColors(Vector3f.Zero);
}
if (uv != null)
{
m.EnableVertexUVs(Vector2f.Zero);
}
if (g != null)
{
m.EnableTriangleGroups(0);
}
if (storageMode == IOStrings.MeshStorageMode.EdgeRefCounts)
{
if (v == null || t == null || e == null || e_ref == null)
{
return(null);
}
m.VerticesBuffer = new DVector <double>(v);
if (n != null)
{
m.NormalsBuffer = new DVector <float>(n);
}
if (c != null)
{
m.ColorsBuffer = new DVector <float>(c);
}
if (uv != null)
{
m.UVBuffer = new DVector <float>(uv);
}
m.TrianglesBuffer = new DVector <int>(t);
if (g != null)
{
m.GroupsBuffer = new DVector <int>(g);
}
m.EdgesBuffer = new DVector <int>(e);
m.EdgesRefCounts = new RefCountVector(e_ref);
m.RebuildFromEdgeRefcounts();
}
else if (storageMode == IOStrings.MeshStorageMode.Minimal)
{
if (v == null || t == null)
{
return(null);
}
int NV = v.Count;
NewVertexInfo vinfo = new NewVertexInfo();
for (int k = 0; k < NV; ++k)
{
vinfo.v = v[k];
if (n != null)
{
vinfo.n = n[k];
}
if (c != null)
{
vinfo.c = c[k];
}
if (uv != null)
{
vinfo.uv = uv[k];
}
m.AppendVertex(ref vinfo);
}
int NT = t.Count;
for (int k = 0; k < NT; ++k)
{
Vector3i tri = t[k];
int setg = (g == null) ? -1 : g[k];
m.AppendTriangle(tri, setg);
}
}
else
{
throw new Exception("SOFactory.RestoreDMesh: unsupported mesh storage mode");
}
return(m);
}
public static void test_uv_insert_string()
{
DMesh3 mesh = TestUtil.LoadTestInputMesh("plane_xy_25x25.obj");
mesh.EnableVertexUVs(Vector2f.Zero);
DMeshAABBTree3 spatial = new DMeshAABBTree3(mesh);
spatial.Build();
int tid = spatial.FindNearestTriangle(Vector3d.Zero);
PolygonFont2d font = PolygonFont2d.ReadFont("c:\\scratch\\font.bin");
//List<GeneralPolygon2d> letter = new List<GeneralPolygon2d>(font.Characters.First().Value.Polygons);
//double targetWidth = 20.0f;
List <GeneralPolygon2d> letter = font.GetCharacter('a');
double targetWidth = 10.0f;
AxisAlignedBox2d bounds = font.MaxBounds;
Vector2d center = bounds.Center;
Vector2d scale2d = (targetWidth / font.MaxBounds.Width) * new Vector2d(1, 1);
for (int li = 0; li < letter.Count; ++li)
{
GeneralPolygon2d gp = new GeneralPolygon2d(letter[li]);
gp.Scale(scale2d, center);
gp.Translate(-center);
letter[li] = gp;
}
List <MeshFaceSelection> letter_interiors = new List <MeshFaceSelection>();
bool bSimplify = true;
for (int li = 0; li < letter.Count; ++li)
{
GeneralPolygon2d gp = letter[li];
MeshInsertUVPolyCurve outer = new MeshInsertUVPolyCurve(mesh, gp.Outer);
Util.gDevAssert(outer.Validate() == ValidationStatus.Ok);
outer.Apply();
if (bSimplify)
{
outer.Simplify();
}
List <MeshInsertUVPolyCurve> holes = new List <MeshInsertUVPolyCurve>(gp.Holes.Count);
for (int hi = 0; hi < gp.Holes.Count; ++hi)
{
MeshInsertUVPolyCurve insert = new MeshInsertUVPolyCurve(mesh, gp.Holes[hi]);
Util.gDevAssert(insert.Validate() == ValidationStatus.Ok);
insert.Apply();
if (bSimplify)
{
insert.Simplify();
}
holes.Add(insert);
}
// find a triangle connected to loop that is inside the polygon
// [TODO] maybe we could be a bit more robust about this? at least
// check if triangle is too degenerate...
int seed_tri = -1;
EdgeLoop outer_loop = outer.Loops[0];
for (int i = 0; i < outer_loop.EdgeCount; ++i)
{
if (!mesh.IsEdge(outer_loop.Edges[i]))
{
continue;
}
Index2i et = mesh.GetEdgeT(outer_loop.Edges[i]);
Vector3d ca = mesh.GetTriCentroid(et.a);
bool in_a = gp.Outer.Contains(ca.xy);
Vector3d cb = mesh.GetTriCentroid(et.b);
bool in_b = gp.Outer.Contains(cb.xy);
if (in_a && in_b == false)
{
seed_tri = et.a;
break;
}
else if (in_b && in_a == false)
{
seed_tri = et.b;
break;
}
}
Util.gDevAssert(seed_tri != -1);
// make list of all outer & hole edges
HashSet <int> loopEdges = new HashSet <int>(outer_loop.Edges);
foreach (var insertion in holes)
{
foreach (int eid in insertion.Loops[0].Edges)
{
loopEdges.Add(eid);
}
}
// flood-fill inside loop from seed triangle
MeshFaceSelection sel = new MeshFaceSelection(mesh);
sel.FloodFill(seed_tri, null, (eid) => { return(loopEdges.Contains(eid) == false); });
letter_interiors.Add(sel);
}
// extrude regions
Func <Vector3d, Vector3f, int, Vector3d> OffsetF = (v, n, i) => {
return(v + Vector3d.AxisZ);
};
foreach (var interior in letter_interiors)
{
MeshExtrudeFaces extrude = new MeshExtrudeFaces(mesh, interior);
extrude.ExtrudedPositionF = OffsetF;
extrude.Extrude();
}
TestUtil.WriteTestOutputMesh(mesh, "insert_uv_string.obj");
}
public static void test_uv_insert_segment()
{
DMesh3 mesh = TestUtil.LoadTestInputMesh("plane_250v.obj");
mesh.EnableVertexUVs(Vector2f.Zero);
MeshTransforms.ConvertYUpToZUp(mesh);
DMeshAABBTree3 spatial = new DMeshAABBTree3(mesh);
spatial.Build();
int tid = spatial.FindNearestTriangle(Vector3d.Zero);
//Polygon2d poly = Polygon2d.MakeRectangle(Vector2d.Zero, 5, 5);
Polygon2d poly = Polygon2d.MakeCircle(5, 13);
//PolyLine2d poly = new PolyLine2d( new Vector2d[] { -5 * Vector2d.One, 5 * Vector2d.One });
//int tri_edge0 = mesh.GetTriEdge(tid, 0);
//Index2i edge0_tris = mesh.GetEdgeT(tri_edge0);
//Index2i edge0_verts = mesh.GetEdgeV(tri_edge0);
//Vector3d v0 = mesh.GetVertex(edge0_verts.a), v1 = mesh.GetVertex(edge0_verts.b);
//Vector3d c = mesh.GetTriCentroid(tid);
//Polygon2d poly = new Polygon2d(new Vector2d[] {
// Vector2d.Lerp(v0.xy, v1.xy, -0.25),
// Vector2d.Lerp(v0.xy, v1.xy, 1.5),
// c.xy
//});
MeshInsertUVPolyCurve insert = new MeshInsertUVPolyCurve(mesh, poly);
insert.Apply();
Polygon2d test_poly = new Polygon2d();
List <double> distances = new List <double>();
List <int> nearests = new List <int>();
for (int i = 0; i < insert.Loops[0].VertexCount; ++i)
{
Vector2d v = mesh.GetVertex(insert.Loops[0].Vertices[i]).xy;
test_poly.AppendVertex(v);
int iNear; double fNear;
distances.Add(poly.DistanceSquared(v, out iNear, out fNear));
nearests.Add(iNear);
}
System.Console.WriteLine("inserted loop poly has {0} edges", insert.Loops[0].EdgeCount);
// find a triangle connected to loop that is inside the polygon
// [TODO] maybe we could be a bit more robust about this? at least
// check if triangle is too degenerate...
int seed_tri = -1;
for (int i = 0; i < insert.Loops[0].EdgeCount; ++i)
{
Index2i et = mesh.GetEdgeT(insert.Loops[0].Edges[i]);
Vector3d ca = mesh.GetTriCentroid(et.a);
bool in_a = poly.Contains(ca.xy);
Vector3d cb = mesh.GetTriCentroid(et.b);
bool in_b = poly.Contains(cb.xy);
if (in_a && in_b == false)
{
seed_tri = et.a;
break;
}
else if (in_b && in_a == false)
{
seed_tri = et.b;
break;
}
}
Util.gDevAssert(seed_tri != -1);
// flood-fill inside loop
HashSet <int> loopEdges = new HashSet <int>(insert.Loops[0].Edges);
MeshFaceSelection sel = new MeshFaceSelection(mesh);
sel.FloodFill(seed_tri, null, (eid) => { return(loopEdges.Contains(eid) == false); });
// delete inside loop
MeshEditor editor = new MeshEditor(mesh);
editor.RemoveTriangles(sel, true);
MeshTransforms.ConvertZUpToYUp(mesh);
TestUtil.WriteTestOutputMesh(mesh, "insert_uv_segment.obj");
//OBJWriter writer = new OBJWriter();
//var s = new System.IO.StreamWriter(Program.TEST_OUTPUT_PATH + "mesh_local_param.obj", false);
//List<WriteMesh> wm = new List<WriteMesh>() { new WriteMesh(mesh) };
//WriteOptions opt = new WriteOptions() {
// bCombineMeshes = false, bWriteGroups = false, bPerVertexColors = true, bPerVertexUVs = true,
// AsciiHeaderFunc = () => { return "mttllib checkerboard.mtl\r\nusemtl checkerboard\r\n"; }
//};
//writer.Write(s, wm, opt);
//s.Close();
}
