I want to be able to define the size of a line or entity in a sketch without actually giving it a numerical value. This would be incredibly helpful when making an object constructed of more lines that have a relationship with the given dimension, but the dimension of the object as a whole is the main concern.
The main example that is affecting me right now is constructing a rectangle based on the golden ratio. I have a rectangle and a square put together on top of each other (as seen below). I want to make the side of the square (a) be related to the small side of the rectangle (b) by the equation a = b*(1+5^.5)/2, which is the golden ratio.
The problem is that I don't want to define a or b. I instead want to define the length of the big rectangle as exactly 200mm, allowing for a and b to be calculated to make this true.
This feature to put variables into dimensions would help my workflow immensely.
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