Enumerates the type of placement modes in a SymbolAnchor.
The SymbolAnchorPlacementMode can be one of:
|SymbolAnchorPlacementMode::Relative (0)||Specify anchor with relative values. This mode causes anchor values to be interpreted as percentages relative to the origin of the symbol. Percentage values must be expressed as fractions between [|
|SymbolAnchorPlacementMode::Absolute (1)||Specify anchor with absolute values. This mode causes anchor values to be interpreted as absolute units (DIPs) rather than percentages.|