How do I Select Edges Between Material IDs?
A user asked:
I want to select the edges between different Material IDs in an Editable Poly object.
Answer:
The following code implements a possible solution:
SCRIPT
|
macroScript SelMatIDEdges category: "MXS Help"
(
--The ActionItem will only be enabled when a single object with
--Editable_Poly base object is selected:
on isEnabled return
selection.count == 1 and classof selection[1].baseobject == Editable_Poly
--When executed,
on execute do
(
theEP = selection[1].baseobject --get the base object of the selected object
edgeSelArray = #() --init. an empty array to collect the edges
eCount = polyOp.getNumEdges theEP --get the total number of edges
for edge = 1 to eCount do --loop through all edges
(
--get the faces sharing the current edge
theFaces = (polyOp.getFacesUsingEdge theEP #(edge)) as array
--if there are two faces sharing the edge,
if theFaces.count == 2 do
(
--compare their Material IDs. If different, collect the edge
if polyOp.getFaceMatID theEP theFaces[1] != polyOp.getFaceMatID theEP theFaces[2] do
append edgeSelArray edge
)--end if
)--end loop
--After checking all edges, select the collected ones
polyOp.setEdgeSelection theEP edgeSelArray
max Modify Mode-- switch to modify panel
modPanel.setCurrentObject theEP-- go to the BaseObject level
subObjectLevel = 2--and go to Edge SubObject level to show the result
)--end on execute
)--end macroScript
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A Box primitive has 6 Material IDs assigned to its 6 sides. In this example, a box
with 4x4x4 segments was converted to Editable Poly. Then the above script was executed.