ICON_ROTATION_ALIGNMENT_MAP
When SYMBOL_PLACEMENT is set to SYMBOL_PLACEMENT_POINT, aligns icons east-west. When SYMBOL_PLACEMENT is set to SYMBOL_PLACEMENT_LINE or SYMBOL_PLACEMENT_LINE_CENTER, aligns icon x-axes with the line.
When SYMBOL_PLACEMENT is set to SYMBOL_PLACEMENT_POINT, aligns icons east-west. When SYMBOL_PLACEMENT is set to SYMBOL_PLACEMENT_LINE or SYMBOL_PLACEMENT_LINE_CENTER, aligns icon x-axes with the line.