add a general searching function for any geometric types in MeshNodeSearcher

MeshGeoToolsLib/MeshNodeSearcher.cpp

@@ -75,6 +75,28 @@ MeshNodeSearcher::~MeshNodeSearcher()
 	}
 }
 
+std::vector<std::size_t> MeshNodeSearcher::getMeshNodeIDs(GeoLib::GeoObject const& geoObj)
+{
+	std::vector<std::size_t> vec_nodes;
+	switch (geoObj.getGeoType()) {
+	case GeoLib::GEOTYPE::POINT:
+	{
+		auto node_id = this->getMeshNodeIDForPoint(*dynamic_cast<const GeoLib::PointWithID*>(&geoObj));
+		if (node_id) vec_nodes.push_back(*node_id);
+		break;
+	}
+	case GeoLib::GEOTYPE::POLYLINE:
+		vec_nodes = this->getMeshNodeIDsAlongPolyline(*dynamic_cast<const GeoLib::Polyline*>(&geoObj));
+		break;
+	case GeoLib::GEOTYPE::SURFACE:
+		vec_nodes = this->getMeshNodeIDsAlongSurface(*dynamic_cast<const GeoLib::Surface*>(&geoObj));
+		break;
+	default:
+		break;
+	}
+	return vec_nodes;
+}
+
 boost::optional<std::size_t> MeshNodeSearcher::getMeshNodeIDForPoint(GeoLib::Point const& pnt) const
 {
 	auto* found = _mesh_grid.getNearestPoint(pnt.getCoords());

MeshGeoToolsLib/MeshNodeSearcher.h

@@ -51,6 +51,13 @@ public:
 	explicit MeshNodeSearcher(MeshLib::Mesh const& mesh);
 	virtual ~MeshNodeSearcher();
 
+	/**
+	 * Searches for the nearest mesh nodes on the given geometric object (point, polyline, surface).
+	 * @param geoObj a GeoLib::GeoObject where the nearest mesh node is searched for
+	 * @return a vector of mesh node ids
+	 */
+	std::vector<std::size_t> getMeshNodeIDs(GeoLib::GeoObject const& geoObj);
+
 	/**
 	 * Searches for the node nearest by the given point. If there are two nodes
 	 * with the same distance the id of the one that was first found will be