RCytoscape (version 1.22.0)

setEdgeSourceArrowOpacityDirect: setEdgeSourceArrowOpacityDirect

Description

In the specified CytoscapeWindow, set the opacity of the source arrow of the specified edge or edges. Opacity is an integer between 0 (invisible) and 255 (fully rendered).

Usage

setEdgeSourceArrowOpacityDirect(obj, edge.names, new.values)

Arguments

obj

a CytoscapeWindowClass object.

edge.names

one or more cy2-style edge names, String objects.

new.values

one or more integer objects, between 0 and 255.

Value

None.

See Also

cy2.edge.names setEdgeTargetArrowOpacityDirect

Examples

  cw <- new.CytoscapeWindow ('setEdgeSourceArrowOpacityDirect.test', graph=makeSimpleGraph())
  displayGraph (cw)
  layoutNetwork(cw, 'jgraph-spring')
  redraw (cw)

  edges.of.interest = as.character (cy2.edge.names (cw@graph))
     # make sure the source arrows are visible
  setEdgeSourceArrowShapeDirect (cw, edges.of.interest, 'Circle')

    # first try passing three edges and three arrow opacity values
  setEdgeSourceArrowOpacityDirect (cw, edges.of.interest, c (64, 128, 255))
  redraw (cw)

  Sys.sleep (1)
  
    # now try passing three edges and one opacity value
  setEdgeSourceArrowOpacityDirect (cw, edges.of.interest, 32)
  redraw (cw)

    # now loop through all of the arrow.opacitys

  for (opacity in seq (0, 255, by=45)) {
    setEdgeSourceArrowOpacityDirect (cw, edges.of.interest, opacity)
    Sys.sleep (1)
    redraw (cw)
    }

    # restore the default
  setEdgeSourceArrowOpacityDirect (cw, edges.of.interest, 255)
  redraw (cw)