API: Parsing the "expression" string of the variable for the unit

robert_chiodi

I'm working on an integration where we deal a lot of with updating variables in a Variable Studio and regenerating a geometry. I was wondering if you'd be willing to share some knowledge or code on how you perform parsing of the "expression" string when converting it to the "value" string. As the title says, I am particularly interested in parsing out the unit string from the "expression".

Thanks!

billy2

I might not be following your question and this might not answer your question.

If you want to parse "json" it's best to use a prettyprint function to understand how to build an accessor.

pretty print function

This function will print an indented format allowing you to build a accessor

ie…. json.data[2].unit

println("unit "~json.data[2].unit); //"mm"

robert_chiodi

robert_chiodi

Thank you for the response. My question is about how to parse responses to the GET variables end point, where a single variable looks like, for instance:

{"type": "ANY",
 "name": "ref",
 "value": "383.68955520000003 meter^2",
 "description": "",
 "expression": "594720.0in^2"      
},

In particular, I am finding it difficult to consistently identify the unit in the "expression", but I am now thinking about a different approach. I am left with these questions:
1. Is the "value" string always in SI (meters, rad)?
2. How is the unit determined for "value"? Could it have been meter*meter in my example for instance?

Thanks!