An Introduction to Autodesk Inventor iLogic
Creating iLogic Rules - Continued

We can make the flange hole active by using an iLogic function. At the top of the Rule Editor, select the Rule Syntax tab. In the Categories list choose the Component/Features item. iLogic functions that control Components and Features are found here. Locate the Feature.IsActive(“featurename”) function in the Functions window. Highlight and then double-click the function, and its text will be entered into the rule editor.

Click on the Model tab at the top of the iLogic Rule Editor. Locate the flange_hole in the model tree and click its node. flange_hole will appear in the Names tab in the top right corner. Replace “featurename” in the command with “flange_hole” by highlighting featurename in the rule text, and then double-clicking on flange_hole from the name list.