Vector app with boolean operators

not expecting much, I need some form of vector based (lines, plines, oval, squares etc...) that also has the ability to do basic boolean operations on those shapes, (addition/merging, subtraction, etc...). I would be sending these back to the main computer for more detailed work and conversion to graphic formats to use in programs, but want to work where I want to on the ipad and create the core shapes and drawings.
Any suggestions would be great. I currently use an app called Touchdraw that does everything except the booleans, which would make my life a whole lot easier.
Thanks
Jason

Fyi, eveloper of touch draw let me know at booleans are coming in a future update.

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I cannot do that, because you can set "before aggregation" property only for KF that are built on basis KF. But I have to built my formula using boolean operators that are not basis KF.
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AND is implicit,
xy -- means x AND yThat's not what I need, though, since this is just
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>
You'd probably just be better off doing multiple
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Vector app with boolean operators

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