Here is an add-in for Autodesk Inventor that should be built into the core of Inventor from the beginning. Thanks to Brian Hall, aka:
@QubeIt we now have this functionality. Center Point Rectangle is now on Version 3.
Center Point Rectangle has four rectangle drawing commands that are used inside the sketch environment. The four commands are listed below:
Center Point Rectangle: This command draws a rectangle about the origin of where the user picks. It constrains the rectangle by adding a vertical and horizontal alignment constraint to
one of the vertical and horizontal lines respectively as well as a coincident constraint to the geometry that the user selects.
Diagonal Center Point Rectangle: This command draws a rectangle about the origin of where the user picks and adds a diagonal construction line that goes from one corner to the opposite corner with a sketch point constrained to the mid-point of the diagonal line.
Horizontal Mid-Point Rectangle: This command draws a rectangle that starts from the mid-point of one of the horizontal lines of the rectangle. A sketch point is then added and constrained to that line’s mid-point.
Vertical Mid-Point Rectangle: This command draws a rectangle that starts from the mid-point of one of the vertical lines of the rectangle. A sketch point is then added and constrained to that line’s mid-point.
Version 3 now supports Autodesk Inventor 2010, 2011, & 2012. You can download this Add-In at
mCADForums.com. He has also included the
source code for this Add-In if you want to do some tweaking on it yourself. Hope you enjoy.
Here are some videos showing the functionality of the Center Point Rectangle Add-In.
Here is a video showing the basics of the Center Point Rectangle Add-In.
Here is a video showing the changes that were made in Version 2.
Here is a video showing the changes that were made for Version 3.