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macroScript SpinEdge category:"Bobo_s Polytools"
(
--SpinEdge
--Version 1.0
--Started: 2004/12/06
--Edited: 2004/12/06
--Code by Borislav "Bobo" Petrov
--Copyright (c) 2004
--Make sure exactly one object is selected, it is in Edge SO mode and it is either EditablePoly base object or Edit_Poly modifier.
on isEnabled return
selection.count == 1 and subObjectLevel == 2 and ( classof (modPanel.getCurrentObject()) == Editable_Poly or classof (modPanel.getCurrentObject()) == Edit_Poly )
--when executed, do the magic:
on execute do
(
theObject = modPanel.getCurrentObject() --get the object from the modifier stack
if classof theObject == Edit_Poly then theMode = 1 else theMode = 0 --see what class it is to decide which code to use
--get the selected edges using the corresponding syntax for Epoly or Edit_Poly:
if theMode == 0 then
theEdges = ((polyOp.getEdgeSelection theObject ) as array)
else
theEdges = (theObject.GetSelection #Edge node:selection[1]) as array
if theEdges.count == 1 then --check to make sure only one edge is selected
(
theEdge = theEdges[1] --if only one, get its index!
if theMode == 0 then --if EditablePoly is selected in Modifier panel, then
(
theFaces = (polyOp.getFacesUsingEdge theObject theEdge) as array --grab the faces sharing the selected edge as array
if theFaces.count == 2 then
(
theEdgeVerts = (polyOp.getVertsUsingEdge theObject theEdge) --grab the vertices on both sides of the edge as bitArray
thePolyEdges1 = (polyOp.getEdgesUsingFace theObject theFaces[1]) - #{theEdge} --grab all edges of the first face except the selected one
thePolyEdges2 = (polyOp.getEdgesUsingFace theObject theFaces[2]) - #{theEdge} --grab all edges of the second face except the selected one
--get all edges using the first vertex of the selected edge except the selected edge itself.
--then take the intersection with the edges of the first polygon, convert to array and grab the first edge
theNeighbourEdge1 = ((( (polyOp.getEdgesUsingVert theObject (theEdgeVerts as array)[1]) - #{theEdge} ) * thePolyEdges1 ) as array)[1]
--repeat for the second polygon.
--This gives us knowledge which edges are part of the one or the other polygon AND share a vertex with the selected edge
--(which is the only one that belongs to both polygons)
theNeighbourEdge2 = ((( (polyOp.getEdgesUsingVert theObject (theEdgeVerts as array)[2]) - #{theEdge} ) * thePolyEdges2 ) as array)[1]
--Create an array of the first vertex of both edges collected above.
--Then sort the array to keep the vertices in ascending order.
newVerts = sort #(
(((polyOp.getVertsUsingEdge theObject theNeighbourEdge1) - theEdgeVerts) as array)[1],
(((polyOp.getVertsUsingEdge theObject theNeighbourEdge2) - theEdgeVerts) as array)[1]
)
theObject.remove selLevel:#edge --remove the currently selected edge, turning both polygons into one.
if keyboard.shiftPressed then --depending on the state of the SHIFT key when pressing the script's button, create edge in the one or the other direction
theObject.createEdge newVerts[2] newVerts[1] select:true
else
theObject.createEdge newVerts[1] newVerts[2] select:true
)
else --if the edge does not have two polygons, let the user know!
pushPrompt "Cannot Spin an OPEN Edge!"
)
else --if the object in Modifier Stack is Edit_Poly, work here instead...
(
theFaces = #() --init. an array to collect the faces of the selected edge
theFace1 = theObject.getEdgeFace theEdge 1 --grab the first one
theFace2 = theObject.getEdgeFace theEdge 2 --and the second one
if theFace1 > 0 do append theFaces theFace1 --if it is valid, add it to the array
if theFace2 > 0 do append theFaces theFace2 --same with the second one
if theFaces.count == 2 then --if two faces collected, continue...
(
theEdgeVerts = #{ (theObject.getEdgeVertex theEdge 1), (theObject.getEdgeVertex theEdge 2) } --collect the two vertices of the selected edge
--collect the edges of the first polygon except the selected one
thePolyEdges1 = ((for i = 1 to (theObject.GetFaceDegree theFaces[1]) collect (theObject.getFaceEdge theFaces[1] i) ) as bitArray) - #{theEdge}
--collect the edges of the second polygon except the selected one
thePolyEdges2 = ((for i = 1 to (theObject.GetFaceDegree theFaces[2]) collect (theObject.getFaceEdge theFaces[2] i) ) as bitArray) - #{theEdge}
--collect the edges that share the first vertex of the selected edge and are used by the first polygon, take the first one
theNeighbourEdge1 = ((((( for i = 1 to (theObject.GetVertexEdgeCount (theEdgeVerts as array)[1]) collect theObject.getVertexEdge (theEdgeVerts as array)[1] i) as bitArray) - #{theEdge} ) * thePolyEdges1 ) as array)[1]
--collect the edges that share the second vertex of the selected edge and are used by the second polygon, take the first one
theNeighbourEdge2 = ((((( for i = 1 to (theObject.GetVertexEdgeCount (theEdgeVerts as array)[2]) collect theObject.getVertexEdge (theEdgeVerts as array)[2] i) as bitArray) - #{theEdge} ) * thePolyEdges2 ) as array)[1]
--grab the vertices of the neighbour edge determined above, remove the vertices of the selected edge and take the remaining one
newVert1 = ((#{theObject.getEdgeVertex theNeighbourEdge1 1, theObject.getEdgeVertex theNeighbourEdge1 2} - theEdgeVerts ) as array)[1]
newVert2 = ((#{theObject.getEdgeVertex theNeighbourEdge2 1, theObject.getEdgeVertex theNeighbourEdge2 2} - theEdgeVerts ) as array)[1]
--sort the two vertices in ascending order
newVerts = sort #( newVert1, newVert2)
--remove the selected edge to turn the two polys into one...
theObject.ButtonOp #RemoveEdge
--depending on the state of the SHIFT key, connect the vertices in descending or ascending order
if keyboard.shiftPressed then
theObject.CreateEdge newVerts[2] newVerts[1] node:selection[1]
else
theObject.CreateEdge newVerts[1] newVerts[2] node:selection[1]
theObject.Commit() --commit the change to create two polys again.
)
else --open edge is a no-no
pushPrompt "Cannot Spin an OPEN Edge!"
)--end Edit_Poly code
)--end if one edge
else --let the user know he did not select a single edge!
pushPrompt "Select EXACTLY Only Edge to Spin!"
)--end execute
)--end macro
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