3 `circle-opselector` is a tool for creating new circle models by selecting nodes from a model.
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7 ### 1. Select from location numbers
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10 ./circle-opselector --by_id "1-3,5" input.circle output.circle
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13 Then, output.circle which has node 1, 2, 3 and 5 will be created.
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15 ### 2. Select from node names
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18 ./circle-opselector --by_name "Add_1,Sub_1,Concat_2" input.circle output.circle
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21 Then, output.circle which has node Add_1, Sub_1 and Concat_2 will be created.
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