add a function to search connected element ids
initial implementation of BoundaryElementSearcher class
use Node::getElements()
correct a function name
update copyright year
introduce BoundaryElementsAlongPolyline and BoundaryElementsAlongSurface to own boundary elements
[WIP] test codes for boundary element search
skip internal elements also in face search
rename BoundaryElementsAlongSurface to BoundaryElementsOnSurface
reverse the 4th edge's node indeces in a quad element
add getConnectedNodeIDs to collected node IDs used in a given set of elements
BoundaryElementsAlongPolyline returns elements sorted according to their distance to the starting point of the polyline
Faces should be searched in BoundaryElementsOnSurface
complete test cases for boundary element searching
revert the change in edge node order in Quad
rewrote BoundaryElementsAlongPolyline which works independently from node order of edges
fix memory leak in BoundaryElementsOnSurface
use Element::isBoundaryElement()
make two standalone functions
Merge pull request #455 from norihiro-w/gen-boundary-ele

Boundary element generator