|Visio XML Reference|
Contains a number that specifies the angle of oblique direction when the default page shadow type is applied.
Optional string. Represents a unit of measure. The default is DA. For details about DA, see Units of measure.
Optional string. Represents the element's formula. This attribute can contain one of the following strings: "someFormula" if the formula exists locally, "No Formula" if the formula is locally deleted or blocked, or "Inh" if the formula is inherited.
If the attribute is not present, the element's formula is a simple constant. For example, <element>5</element>.
Optional string. Indicates that the formula evaluates to an error. The value of Err is the current value (an error message string); the value of the element is the last valid value.
A value of zero (0) in this element indicates that the angle direction is straight up and is measured moving clockwise.
The angle described in this cell is used whenever the ShapeShdwType element value (the shadow type for a shape on the page) is set to the page default value, and the shadow type is oblique. The default page shadow type is defined in the ShdwType element.
To set this behavior for an individual shape, use the ShapeShdwObliqueAngle element.
ShdwObliqueAngle cell (Page Properties section)