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Added some comments, and cleared startup a little

This commit is contained in:
Paolo Cignoni 2007-05-22 15:25:14 +00:00
parent dd6a5552dc
commit a9ed51c145
1 changed files with 13 additions and 7 deletions
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20
vcg/complex/trimesh/create/ball_pivoting.h
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@ -73,18 +73,24 @@ class Pivot {
//but adding topology may not be needed anymode //but adding topology may not be needed anymode
int last_seed; int last_seed;
// Parameters:
// <mesh> a standard trimesh. Vertex is required to have normals.
// If some faces are already in the process start from the border edges
// Bounding Box must have been already computed.
// If faces are in border flags must be already computed
// <radius> is the radius of the pivoting ball. If set to 0 an automatic guess is used ( sqrt(BBox_Diag^2 / vn) )
// <mindist> is the minimal distance between two points
// <crease> in the
// <normals>
Pivot(MESH &_mesh, ScalarType _radius, ScalarType _mindist = 0.1, ScalarType _crease = -0.5): Pivot(MESH &_mesh, ScalarType _radius, ScalarType _mindist = 0.1, ScalarType _crease = -0.5):
mesh(_mesh), radius(_radius), mindist(_mindist), crease(_crease), normals(true), last_seed(0) { mesh(_mesh), radius(_radius), mindist(_mindist), crease(_crease), normals(true), last_seed(0) {
box = mesh.bbox;
//Compute bounding box. (this may be passed as a parameter?
for(int i = 0; i < mesh.vert.size(); i++)
box.Add(mesh.vert[i].P());
//estimate radius if not provided //estimate radius if not provided
if(radius <= 0.0f) if(radius <= 0.0f)
radius = sqrt((box.Diag()*box.Diag())/mesh.vn); radius = sqrt((box.Diag()*box.Diag())/mesh.vn);
UpdateFlags<MESH>::VertexClearV(mesh);
/* we need to enlarge the grid to allow queries from little outside of the box /* we need to enlarge the grid to allow queries from little outside of the box
Someone is a bit lazy... */ Someone is a bit lazy... */
box.Offset(4*radius); box.Offset(4*radius);
@ -104,7 +110,7 @@ Pivot(MESH &_mesh, ScalarType _radius, ScalarType _mindist = 0.1, ScalarType _cr
if(face.IsB(k)) { if(face.IsB(k)) {
//compute center: //compute center:
findSphere(face.P(k), face.P((k+1)%3), face.P((k+2)%3), center); findSphere(face.P(k), face.P((k+1)%3), face.P((k+2)%3), center);
newEdge(Edgex(face.V((k)%3) -start, face.V((k+1)%3) - start, face.V((k+2)%3) - start, newEdge(Edgex(face.V0(k) - start, face.V1(k) - start, face.V2(k) - start,
i, center)); i, center));
} }
} }