One interesting feature of Visio that is not well documented is that you can create your own custom fill patterns, line patterns and line ends. For now, I will review the procedure for creating a semicircular line end. Something like:
1) Open Drawing Explorer
2) Select New Pattern from Line Ends. Set the name. Set the scaled option.
3) Select the new master, right click and select Edit Pattern Shape.
4) Place a vertical and a horizontal guide line so they intersect at the center of the page. This will be the end point of the line.
5) Draw a circle, set the fill to none and then drop a vertical line over it’s center.
6) Select the circle and the line and choose Operations –> Trim from the Shape menu.
7) Deselect everything and then drag a selection box over the left side of the circle and the vertical line. Delete. This should leave you with the right side of the circle.
8) Place the center of the circle over the intersection point of the guidelines.
You will have to play with the sizing, but this should give you a semicircle line end and the line will end in the end of the circle. If you apply it to the start of the line, begin, it will be a “(” and it will be a “)” at the end. The assumption is that you want the line end at the end of the line placing it at the beginning will reverse it.
John… Visio MVP