ArcTo Row (Geometry Section)
Contains the x- and y-coordinates and bow of a circular arc.
An ArcTo row contains the following cells.
Arcs drawn in Visio are elliptical arcs, even if they are based on a circle. By default, drawn arcs are represented by an EllipticalArcTo row in a ShapeSheet window. To show an ArcTo row in a ShapeSheet window, you must draw an arc, and then change the EllipticalArcTo row type to an ArcTo row type; in effect you are changing an elliptical arc to a circular arc.
To change a row type, right-click a row, and then click Change Row Type on the shortcut menu.