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Start building mesh primitives.

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This commit is contained in:
James Grogan 2022-11-18 15:11:54 +00:00
parent a20c0183df
commit fcd90b5db4
30 changed files with 856 additions and 97 deletions
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51
src/mesh/TriMesh.cpp
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@ -1,6 +1,5 @@
#include "TriMesh.h"
#include "Node.h"
#include "Edge.h"
#include "TriFace.h"
@ -9,43 +8,39 @@ TriMesh::~TriMesh()
}
void TriMesh::populate(VecNodes& nodes, VecEdges& edges, VecFaces& faces)
AbstractMesh::MeshType TriMesh::getType() const
{
mNodes = std::move(nodes);
mEdges = std::move(edges);
mFaces = std::move(faces);
return AbstractMesh::MeshType::TRI;
}
std::vector<unsigned> TriMesh::getFaceNodeIds() const
std::unique_ptr<AbstractMesh> TriMesh::copy() const
{
unsigned nodes_per_face = 3;
std::vector<unsigned> ids(nodes_per_face*mFaces.size());
for(std::size_t idx=0; idx<mFaces.size(); idx++)
VecNodes nodes(mNodes.size());
unsigned count = 0;
for (auto& node : mNodes)
{
const auto nodeIds = mFaces[idx]->getNodeIds();
for(std::size_t jdx=0; jdx<nodes_per_face; jdx++)
{
ids[nodes_per_face*idx + jdx] = nodeIds[jdx];
}
nodes[count] = std::make_unique<Node>(node->getPoint());
count++;
}
return ids;
}
std::vector<std::vector<double> > TriMesh::getFaceVectorAttributes(const std::string& tag)
{
std::vector<std::vector<double> > attribs(mFaces.size());
for(std::size_t idx=0; idx<mFaces.size(); idx++)
VecEdges edges(mEdges.size());
count = 0;
for (auto& edge : mEdges)
{
attribs[idx] = {mFaces[idx]->getVectorAttribute(tag)};
edges[count] = std::make_unique<Edge>(nodes[edge->getNode0Id()].get(), nodes[edge->getNode0Id()].get());
count++;
}
return attribs;
}
void TriMesh::addConstantFaceVectorAttribute(const std::string& tag, const std::vector<double>& values)
{
for (const auto& face : mFaces)
VecFaces faces(mFaces.size());
count = 0;
for (auto& face : mFaces)
{
face->addVectorAttribute(tag, values);
auto ids = face->getEdgeIds();
faces[count] = std::make_unique<TriFace>(edges[ids[0]].get(), edges[ids[1]].get(), edges[ids[2]].get());
count++;
}
auto mesh = std::make_unique<TriMesh>();
mesh->populate(nodes, edges, faces);
return mesh;
}