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Finding the boundary number with the Comsol Java API

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Hi everyone,

I am using the Java API with Comsol and I really like it's abilities overall. I build a block first, so there are six boundaries, later I want to set boundary #1(the first index of boundary) and #6(the last index of boundary) as periodic boundaries. However, the index of boundary changes when I add ellipsoids in the block. Is there a way to find the number of last index of boundaries or do you have other suggestion to solve my problem? The code like this:

model.physics("ec").feature("pc1").selection().set(new int[]{1, 54}); // when I add two ellipsoids in the block, the number of last index of boundary changes to 54.

The problem is that IDs of the boundaries – 1, 54 – often change as result of geometry changes. I guess there should be a way to get the IDs through API at runtime, but cannot understand how exactly from reading APIReferenceManual. Did anyone solve such problems? If possible, please write a example code.

Thanks in advance for your help,
Zijiang

0 Replies Last Post 17.10.2015, 18:10 GMT-4
COMSOL Moderator

Hello Zijiang Yang

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