Class dg.BlockEdge
The class for edges between blocks and for edges between vertices and blocks.
The function is used in returnBlockEdgeList.
dynamicGraphMain will automatic update block edges
when vertices are moved between blocks.
oriented:Object of class "logical",
see "dg.VertexEdge". 
vertex.indices:Object of class "numeric",
see also "dg.Edge".
Vector with abs(vertex.indices)
the indices of the nodes of the block edge.
If the index is positiv then the node is a vertex,
else it is a block.  
width:Object of class "numeric",
see "dg.Edge". 
dash:Object of class "character",
see "dg.Edge". 
color:Object of class "character",
see "dg.Edge". 
label:Object of class "character",
see "dg.Edge". 
label.position:Object of class "numeric",
see "dg.Edge". 
Class "dg.Edge", directly.
Class "dg.Node", directly.
signature(object = "dg.BlockEdge"):
Extract the types ("super classes": "Vertex" or "Block")
of the vertices (nodes) of the edge. 
signature(x = "dg.BlockEdge"): ... 
signature(object = "dg.BlockEdge"): ... 
The methods of dg.Edge also applies for dg.BlockEdge.
The method new also accepts the argument vertices or
vertexList. The label is then extracted from these vertices.
The length of vertices should match vertex.indices, where 
vertex.indices is used to select vertices form vertexList.
Jens Henrik Badsberg
vertices  <- returnVertexList(paste("V", 1:4, sep = ""))
block     <- new("dg.Block", stratum = 1)
blockedge <- new("dg.BlockEdge", vertex.indices = c(4, -1), 
                 vertices = new("dg.VertexList", list(vertices[[1]], block)))
str(blockedge)
color(blockedge)
label(blockedge)
labelPosition(blockedge)
width(blockedge)
nodeIndicesOfEdge(blockedge)
nodeTypesOfEdge(blockedge)
color(blockedge) <- "Black"
label(blockedge) <- "V1~1"
labelPosition(blockedge) <- c(0, 1, 2)
width(blockedge) <- 1
nodeIndicesOfEdge(blockedge) <- c(1, -1)
str(blockedge)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.