GRE::GROUP Class Reference

#include <gre/group.h>

Inheritance diagram for GRE::GROUP:

Classes
struct	POSN
	Layout/Positioning parameters. More...
Public Types
enum	CREATEFLAGS { CREATEFLAG_None = 0x0000, CREATEFLAG_NoCallCreateCB = 0x0001, CREATEFLAG_Temporary = 0x0002, CREATEFLAG_3D = 0x0004, CREATEFLAG_NoAutoMatch = 0x0008, CREATEFLAG_NoSetActive = 0x0010, CREATEFLAG_DeferCreate = 0x0020, CREATEFLAG_SML = 0x0040 }
enum	EXTENTCOORD { EXTENTCOORD_Group, EXTENTCOORD_Layout, EXTENTCOORD_View }
enum	LABEL_MANAGEMENT_MODE { LABEL_MANAGEMENT_MODE_RenderWithLayer = 0, LABEL_MANAGEMENT_MODE_RenderLast }
enum	ORIENTATION_BASE { ORIENTATION_BASE_Projection = 0, ORIENTATION_BASE_North = 1 }
Public Member Functions
	GROUP (GRE::LAYOUT layout, CREATEFLAGS createflags=CREATEFLAG_None, GRE::LISTPOS listpos=GRE::LISTPOS_Last, GROUP refgroup=0)
	GROUP (CREATEFLAGS createflags=CREATEFLAG_None)
virtual	~GROUP ()
bool	AdjLatLon ()
bool	AdjLatLonCanSet ()
void	AttachLayerCommonParm (LAYER::TYPE LayerType, GRE::LAYER::COMMONPARM *pParmInstance)
bool	ChangeListPos (GROUP *refgroup, GRE::LISTPOS listpos)
ERRVALUE	CheckAddLayer (GRE::LAYER::TYPE layertype=GRE::LAYER::TYPE_None) const
void	CheckGeorefCompatible () const
void	ClearPosns ()
void	ComputeLayoutExtents ()
ERRVALUE	ComputeMapExtents ()
ERRVALUE	ComputeRegionFromLayers (REGION2D &region, bool IncludeMargins, GRE::LAYER::FILTER *filter=0) const
void	Create (CREATEFLAGS createflags=CREATEFLAG_None)
void	DestroyAllLayers ()
void	DestroyLayer (GRE::LAYER *layer)
ERRVALUE	DlgGetClipSettings (MDLGPARENT dlgparent)
ERRVALUE	DrawActiveOverlay (GRE::DRAWFLAGS DrawFlags=GRE::DRAWFLAG_UpdateScreen, GRE::VIEW *view=0)
virtual GRE::LAYER *	FindLayerByID (UINT32 LayerID) const
double	GetAspectX () const
double	GetAspectY () const
const REGION2D &	GetClipRegion () const
bool	GetClipToMatchedLayer () const
ERRVALUE	GetExtents (DRECT2D &extents, EXTENTCOORD coords)
GRE::LAYER *	GetFirstLayer () const
UINT32	GetFlags () const
virtual void	GetFullName (MISTRING &name) const
const REGION2D &	GetFullRegion () const
LABEL_MANAGEMENT_MODE	GetLabelManagementMode () const
GRE::LAYER *	GetLastLayer () const
GRE::LAYER *	GetLayerActive () const
GRE::LAYER::COMMONPARM *	GetLayerCommonParm (LAYER::TYPE LayerType)
const GRE::LAYER::COMMONPARM *	GetLayerCommonParm (LAYER::TYPE LayerType) const
GRE::LAYER *	GetLayerMatched () const
GRE::LAYER *	GetLayerZoom1X (bool PreferredOnly) const
GRE::LAYOUT *	GetLayout () const
const DRECT2D &	GetLayoutExtents () const
int	GetListPos ()
GROUP *	GetMatchedGroup (bool firstonly=false) const
MATTE &	GetMatte ()
UINT32	GetMutualExclusiveGroupSet () const
const MISTRING &	GetName () const
bool	GetNeedUpdateExtents () const
GROUP *	GetNext () const
virtual UINT32	GetNextLayerID () const
const POSN &	GetPosnX () const
const POSN &	GetPosnY () const
GROUP *	GetPrevious () const
double	GetRelativeScale () const
double	GetRotationAngle () const
UINT8	GetRotationBase () const
const MISTRING &	GetSavedLocations () const
SERIALIZER *	GetSerializer () const
virtual ERRVALUE	GetSizeMeters (DPOINT2D &sizemeters)
const TRANS2D_AFFINE &	GetTransViewToGroup () const
const SPATREF::COORDREFSYS &	GetUsedCoordRefSys () const
GRE::VIEWPOINT3D *	GetViewPoint3D () const
GRE::VISIBLEVIEW	GetVisible () const
void	GetVisibleScaleRange (double &MinScaleVisible, double &MaxScaleVisible) const
bool	HasAttachedGroups () const
bool	HasHighlightableLayer (GRE::VIEW *view=0) const
virtual bool	HasLayers () const
bool	HasLegend () const
bool	HasMutuallyExclusiveLayers () const
bool	HasTempLayers () const
bool	HighlightSetupDefault (GRE::VIEW *view=0)
void	InvalidateAllViews (GRE::RENDERTARGET Target=GRE::RENDERTARGET_GroupAll\|GRE::RENDERTARGET_LayerAll)
bool	Is3D () const
bool	IsBeingLoaded () const
bool	IsClipped () const
bool	IsClippedToMatchedLayer () const
bool	IsCreated () const
bool	IsIgnored () const
bool	IsSingleLayer () const
bool	IsValid () const
bool	IsVisibleAtScale (double scale) const
bool	IsVisibleInView (const GRE::VIEW *view) const
virtual ERRVALUE	SerialRead (SERIALIZER &serializer)
virtual ERRVALUE	SerialWrite (SERIALIZER &serializer, const char *tagname=0) const
void	Set2D ()
void	SetActiveLayer (GRE::LAYER *layer)
void	SetAllLayersVisible (VIEW *view, bool visible)
void	SetAllLayersVisible (VISIBLEVIEW views, bool visible)
void	SetClipRect (const DRECT2D &ClipRect, const SPATREF::COORDREFSYS &RectCRS, bool notify=true)
void	SetClipToMatchedLayer (bool ClipToMatchedLayer, bool notify=true)
void	SetFlags (UINT32 flags, UINT32 mask, bool notify)
void	SetFlags (UINT32 flags, UINT32 mask)
void	SetLabelManagementMode (LABEL_MANAGEMENT_MODE mode)
void	SetListPos (int newpos)
void	SetListPos (GRE::LISTPOS listpos, GROUP *refgroup=0)
void	SetMatte (const MATTE &matte, bool notify=true)
void	SetModified (bool notify=true, bool ViewsNeedRedraw=true)
void	SetMutualExclusiveGroupSet (UINT32 GroupSet)
void	SetMutuallyExclusiveLayers (bool LayersMutuallyExclusive=true)
ERRVALUE	SetName (const MISTRING &newname)
void	SetNeedUpdateExtents ()
void	SetOrientation (UINT8 NewRotBase, double NewRotAngle)
void	SetPosnAttachGeographic (GRE::GROUP *RefGroup=0)
void	SetPosnAttachmentX (UINT8 AttachmentThis, UINT8 AttachmentRef)
void	SetPosnAttachmentY (UINT8 AttachmentThis, UINT8 AttachmentRef)
void	SetPosnAttachToX (UINT8 AttachRefType, GRE::GROUP *RefGroup)
void	SetPosnAttachToY (UINT8 AttachRefType, GRE::GROUP *RefGroup)
void	SetPosnOffsetX (double offset)
void	SetPosnOffsetY (double offset)
void	SetPosnStateX (UINT8 PosnState)
void	SetPosnStateY (UINT8 PosnState)
void	SetPosnValuesX (UINT8 AttachRefType, GRE::GROUP *RefGroup, UINT8 AttachmentThis, UINT8 AttachmentRef, double offset)
void	SetPosnValuesY (UINT8 AttachRefType, GRE::GROUP *RefGroup, UINT8 AttachmentThis, UINT8 AttachmentRef, double offset)
void	SetProjView (const GRE::LAYER *layer)
void	SetRelativeScale (double RelativeScale, bool notify=true)
ERRVALUE	SetRenderCoordRefSys (const SPATREF::COORDREFSYS &RenderCRS)
void	SetSavedLocations (const MISTRING &string)
void	SetSingleLayer (bool SingleLayer)
ERRVALUE	SetupEquirectangular (SPATREF::COORDREFSYS &CoordRefSys, const DPOINT2D &center) const
void	SetViewPoint3D (const GRE::VIEWPOINT3D &ViewPoint3D)
void	SetVisible (UINT32 flags, bool set)
void	SetVisibleScaleRange (double MinScaleVisible, double MaxScaleVisible)
void	SetVisibleView (GRE::VIEW *view, bool visible)
ERRVALUE	TemplateWrite (SERIALIZER &serializer, const char *tagname=0)
void	ValidateAttachments ()
Static Public Member Functions
static GROUP *	GetFromWidget (Widget w)
static void	SMLClassInstall (SMLCONTEXT *context)

Member Enumeration Documentation

enum GRE::GROUP::CREATEFLAGS

Flags for group creation.

Enumerator:

CREATEFLAG_None
CREATEFLAG_NoCallCreateCB	Don't call callback list when object created.
CREATEFLAG_Temporary	Object is temporary.
CREATEFLAG_3D	Group is 3D.
CREATEFLAG_NoAutoMatch	Don't default to automatch any layers.
CREATEFLAG_NoSetActive	Don't make newly-created group "active".
CREATEFLAG_DeferCreate	Defer creation until Create() called (standalone group only).
CREATEFLAG_SML	Being created by SML (standalone group only).

enum GRE::GROUP::EXTENTCOORD

Used with GetExtents().

Enumerator:

EXTENTCOORD_Group
EXTENTCOORD_Layout
EXTENTCOORD_View

enum GRE::GROUP::LABEL_MANAGEMENT_MODE

Enumerator:

LABEL_MANAGEMENT_MODE_RenderWithLayer
LABEL_MANAGEMENT_MODE_RenderLast

enum GRE::GROUP::ORIENTATION_BASE

Enumerator:

ORIENTATION_BASE_Projection
ORIENTATION_BASE_North

Constructor & Destructor Documentation

GRE::GROUP::GROUP ( CREATEFLAGS createflags = CREATEFLAG_None ) [explicit]

Construct "stand-alone" group.

GRE::GROUP::GROUP	(	GRE::LAYOUT *	layout,
		CREATEFLAGS	createflags = `CREATEFLAG_None`,
		GRE::LISTPOS	listpos = `GRE::LISTPOS_Last`,
		GROUP *	refgroup = `0`
	)

Construct group within a layout.

virtual GRE::GROUP::~GROUP ( ) [virtual]

Destructor.

Member Function Documentation

bool GRE::GROUP::AdjLatLon ( )

Determine if lat/lon aspect adjustment will be done.

bool GRE::GROUP::AdjLatLonCanSet ( )

Determine if option to adjust lat/lon aspect can be set.

void GRE::GROUP::AttachLayerCommonParm	(	LAYER::TYPE	LayerType,
		GRE::LAYER::COMMONPARM *	pParmInstance
	)

Attach common parameter instance for layer type.

Group will become owner of pointer and delete when necessary.

bool GRE::GROUP::ChangeListPos	(	GROUP *	refgroup,
		GRE::LISTPOS	listpos
	)

Change group position in list.

ERRVALUE GRE::GROUP::CheckAddLayer ( GRE::LAYER::TYPE layertype = GRE::LAYER::TYPE_None ) const

Check if layer of specified type can be added.

void GRE::GROUP::CheckGeorefCompatible ( ) const

Check if georeference for layers in group are compatible.

void GRE::GROUP::ClearPosns ( ) [inline]

void GRE::GROUP::ComputeLayoutExtents ( )

Compute extents of group in layout.

ERRVALUE GRE::GROUP::ComputeMapExtents ( )

Compute map coordinate extents for group.

ERRVALUE GRE::GROUP::ComputeRegionFromLayers	(	REGION2D &	region,
		bool	IncludeMargins,
		GRE::LAYER::FILTER *	filter = `0`
	)			const

Parameters:

	region	Region returned, will be in group's RenderCoordRefSys
	IncludeMargins	Include layer margins
	filter	Filter

void GRE::GROUP::Create ( CREATEFLAGS createflags = CREATEFLAG_None )

Create group if CREATEFLAG_DeferCreate was specified in constructor.

void GRE::GROUP::DestroyAllLayers ( )

Destroy all layers in this group.

void GRE::GROUP::DestroyLayer ( GRE::LAYER * layer )

Destroy specified layer in this group.

ERRVALUE GRE::GROUP::DlgGetClipSettings ( MDLGPARENT dlgparent )

Dialog to specify group clip settings.

ERRVALUE GRE::GROUP::DrawActiveOverlay	(	GRE::DRAWFLAGS	DrawFlags = `GRE::DRAWFLAG_UpdateScreen`,
		GRE::VIEW *	view = `0`
	)

Draw group overlay containing 'active' element for each layer.

Parameters:

view

View to draw overlay for, 0 for all, will be drawn first if drawing multiple

virtual GRE::LAYER* GRE::GROUP::FindLayerByID ( UINT32 LayerID ) const [virtual]

Find layer using unique ID.

Implements GRE::VIEWABLE.

double GRE::GROUP::GetAspectX ( ) const [inline]

Get X aspect of group dimensions.

double GRE::GROUP::GetAspectY ( ) const [inline]

Get Y aspect of group dimensions.

const REGION2D& GRE::GROUP::GetClipRegion ( ) const

Get clipping region for group.

bool GRE::GROUP::GetClipToMatchedLayer ( ) const [inline]

Get setting for "clip to matched layer" regardless of whether or not will be auto-matched.

ERRVALUE GRE::GROUP::GetExtents	(	DRECT2D &	extents,
		EXTENTCOORD	coords
	)

Get extents of group in specified coordinates.

Parameters:

	extents	Group extents returned
	coords	What to return extents in

GRE::LAYER* GRE::GROUP::GetFirstLayer ( ) const [inline]

Get first layer in group.

UINT32 GRE::GROUP::GetFlags ( ) const [inline]

Get current group flag settings.

static GROUP* GRE::GROUP::GetFromWidget ( Widget w ) [static]

Get group from object attached to Widget userData.

virtual void GRE::GROUP::GetFullName ( MISTRING & name ) const [virtual]

Get full group name as MISTRING.

Parameters:

name

Name returned

Implements GRE::VIEWABLE.

const REGION2D& GRE::GROUP::GetFullRegion ( ) const [inline]

LABEL_MANAGEMENT_MODE GRE::GROUP::GetLabelManagementMode ( ) const [inline]

GRE::LAYER* GRE::GROUP::GetLastLayer ( ) const [inline]

Get last layer in group.

GRE::LAYER* GRE::GROUP::GetLayerActive ( ) const [inline]

Get layer set as active.

GRE::LAYER::COMMONPARM* GRE::GROUP::GetLayerCommonParm ( LAYER::TYPE LayerType )

Get common parameter base class pointer for specific layer type.

Returns:: Pointer to parameter instance or NULL if none set for type.

const GRE::LAYER::COMMONPARM* GRE::GROUP::GetLayerCommonParm ( LAYER::TYPE LayerType ) const

Get common parameter base class pointer for specific layer type.

Returns:: Pointer to parameter instance or NULL if none set for type.

GRE::LAYER* GRE::GROUP::GetLayerMatched ( ) const [inline]

Get layer matched to for orientation/projection.

GRE::LAYER* GRE::GROUP::GetLayerZoom1X ( bool PreferredOnly ) const

Get layer to use for 1X zoom.

Parameters:

PreferredOnly

Use 'preferred' layers only

GRE::LAYOUT* GRE::GROUP::GetLayout ( ) const [inline]

Get layout group is contained in.

Returns:: pointer to layout.

const DRECT2D& GRE::GROUP::GetLayoutExtents ( ) const [inline]

int GRE::GROUP::GetListPos ( )

Get current group drawing order position in list.

Returns:: 0 for first group, 1 for second, etc.

GROUP* GRE::GROUP::GetMatchedGroup ( bool firstonly = false ) const

Return geographically-attached reference group if any.

Parameters:

firstonly

True to return immediate (first link) matched group

MATTE& GRE::GROUP::GetMatte ( ) [inline]

UINT32 GRE::GROUP::GetMutualExclusiveGroupSet ( ) const [inline]

Get "set" for mutual exclusiveness between groups.

const MISTRING& GRE::GROUP::GetName ( ) const [inline]

Get group name.

bool GRE::GROUP::GetNeedUpdateExtents ( ) const [inline]

Determine if need updated extents.

GROUP* GRE::GROUP::GetNext ( ) const [inline]

Get next group in layout.

virtual UINT32 GRE::GROUP::GetNextLayerID ( ) const [virtual]

Get next available unique ID.

Implements GRE::VIEWABLE.

const POSN& GRE::GROUP::GetPosnX ( ) const [inline]

Get positioning parameters for X axis.

const POSN& GRE::GROUP::GetPosnY ( ) const [inline]

Get positioning parameters for Y axis.

GROUP* GRE::GROUP::GetPrevious ( ) const [inline]

Get previous group in layout.

double GRE::GROUP::GetRelativeScale ( ) const [inline]

Get relative scale.

double GRE::GROUP::GetRotationAngle ( ) const [inline]

Get rotation angle relative to base in radians.

UINT8 GRE::GROUP::GetRotationBase ( ) const [inline]

Get base for rotation.

const MISTRING& GRE::GROUP::GetSavedLocations ( ) const [inline]

Get Saved Locations string.

SERIALIZER* GRE::GROUP::GetSerializer ( ) const [inline]

Get serializer instance being used to load group.

Returns:: Pointer to SERIALIZER, NULL if not being loaded.

virtual ERRVALUE GRE::GROUP::GetSizeMeters ( DPOINT2D & sizemeters ) [virtual]

Compute dimensions of object based on scale and georeference.

Parameters:

sizemeters

Size returned in meters

Implements GRE::VIEWABLE.

const TRANS2D_AFFINE& GRE::GROUP::GetTransViewToGroup ( ) const [inline]

Get transformation from group to view.

const SPATREF::COORDREFSYS& GRE::GROUP::GetUsedCoordRefSys ( ) const

Get CoordRefSys used for rendering.

GRE::VIEWPOINT3D* GRE::GROUP::GetViewPoint3D ( ) const [inline]

GRE::VISIBLEVIEW GRE::GROUP::GetVisible ( ) const [inline]

Get view visibility.

void GRE::GROUP::GetVisibleScaleRange	(	double &	MinScaleVisible,
		double &	MaxScaleVisible
	)			const `[inline]`

Get scale range over which group is visible.

Parameters:

	MinScaleVisible	Minimum scale visible returned, 0 for no minimum
	MaxScaleVisible	Maximum scale visible returned, 0 for no maximum

bool GRE::GROUP::HasAttachedGroups ( ) const

Determine if group has other groups attached to it.

bool GRE::GROUP::HasHighlightableLayer ( GRE::VIEW * view = 0 ) const

Determine if any layers in group have "highlightable" elements.

Parameters:

view

Reference view for layer visibility test

virtual bool GRE::GROUP::HasLayers ( ) const [virtual]

Determine if group has any layers.

Implements GRE::VIEWABLE.

bool GRE::GROUP::HasLegend ( ) const [inline]

Determine if group has a legend.

bool GRE::GROUP::HasMutuallyExclusiveLayers ( ) const [inline]

Determine if group has mutually-exclusive layers.

bool GRE::GROUP::HasTempLayers ( ) const

Determine if group has any temporary layers.

bool GRE::GROUP::HighlightSetupDefault ( GRE::VIEW * view = 0 )

Setup for default highlighting of active layer elements.

Returns:: true if set highlighting, false if not.

Parameters:

view

Optional view for determining layer visibility

void GRE::GROUP::InvalidateAllViews ( GRE::RENDERTARGET Target = GRE::RENDERTARGET_GroupAll|GRE::RENDERTARGET_LayerAll )

Invalidate all view buffers for this group.

bool GRE::GROUP::Is3D ( ) const [inline]

Determine if group can be viewed in 3D.

bool GRE::GROUP::IsBeingLoaded ( ) const [inline]

bool GRE::GROUP::IsClipped ( ) const

Determine if group is to be clipped.

bool GRE::GROUP::IsClippedToMatchedLayer ( ) const [inline]

Determine if group is to be clipped to the auto-matched layer.

bool GRE::GROUP::IsCreated ( ) const [inline]

Determine if group has been created.

This is done automatically by constructor unless CREATEFLAG_DeferCreate was specified.

bool GRE::GROUP::IsIgnored ( ) const

Determine if group should be ignored for extents determination.

bool GRE::GROUP::IsSingleLayer ( ) const [inline]

Determine if group only allows a single layer.

bool GRE::GROUP::IsValid ( ) const

Determine if group is a valid object.

bool GRE::GROUP::IsVisibleAtScale ( double scale ) const [inline]

Determine if group visible at specified scale.

bool GRE::GROUP::IsVisibleInView ( const GRE::VIEW * view ) const

Determine if group is visible in specified view.

virtual ERRVALUE GRE::GROUP::SerialRead ( SERIALIZER & serializer ) [virtual]

Read from serialization.

Implements SERIALIZABLE.

virtual ERRVALUE GRE::GROUP::SerialWrite	(	SERIALIZER &	serializer,
		const char *	tagname = `0`
	)			const `[virtual]`

Write values to serialization.

Implements SERIALIZABLE.

void GRE::GROUP::Set2D ( )

Set group to 2D.

void GRE::GROUP::SetActiveLayer ( GRE::LAYER * layer )

Set active layer for group.

Parameters:

layer

Layer to make active

void GRE::GROUP::SetAllLayersVisible	(	VIEW *	view,
		bool	visible
	)

Set visibility of all layers in specified view.

void GRE::GROUP::SetAllLayersVisible	(	VISIBLEVIEW	views,
		bool	visible
	)

Set visibility of all layers in specified views.

void GRE::GROUP::SetClipRect	(	const DRECT2D &	ClipRect,
		const SPATREF::COORDREFSYS &	RectCRS,
		bool	notify = `true`
	)

Set clipping rectangle.

Parameters:

	ClipRect	Rectangle to clip to
	RectCRS	Rectangle CRS

void GRE::GROUP::SetClipToMatchedLayer	(	bool	ClipToMatchedLayer,
		bool	notify = `true`
	)

Set clipping region.

Set whether to clip to 'auto-matched' layer

Parameters:

	ClipToMatchedLayer	'true' to clip, 'false' to not
	notify	Send ACTION_ChangeBegin/End notification

void GRE::GROUP::SetFlags	(	UINT32	flags,
		UINT32	mask,
		bool	notify
	)

Set specified group flags.

Parameters:

	flags	GROUPFLAG_... flag values
	mask	GROUPFLAG_... mask for which flags to change

void GRE::GROUP::SetFlags	(	UINT32	flags,
		UINT32	mask
	)

Set specified group flags.

Parameters:

	flags	GROUPFLAG_... flag values
	mask	GROUPFLAG_... mask for which flags to change

void GRE::GROUP::SetLabelManagementMode ( LABEL_MANAGEMENT_MODE mode ) [inline]

void GRE::GROUP::SetListPos ( int newpos )

Set group position in list.

Parameters:

newpos

New list position, starting at 1

void GRE::GROUP::SetListPos	(	GRE::LISTPOS	listpos,
		GROUP *	refgroup = `0`
	)

Set position in list.

Parameters:

	listpos	Position
	refgroup	Reference group

void GRE::GROUP::SetMatte	(	const MATTE &	matte,
		bool	notify = `true`
	)

Set matte values.

Parameters:

	matte	Matte values to set
	notify	Set to invoke callbacks with "Changed" message

void GRE::GROUP::SetModified	(	bool	notify = `true`,
		bool	ViewsNeedRedraw = `true`
	)

Set group to "modified" status.

Parameters:

	notify	Set to invoke callbacks with "Changed" message
	ViewsNeedRedraw	Set all views of group as needing redraw

void GRE::GROUP::SetMutualExclusiveGroupSet ( UINT32 GroupSet )

Set "group set" which group is mutually-exclusive with.

Parameters:

GroupSet

Group set bits

void GRE::GROUP::SetMutuallyExclusiveLayers ( bool LayersMutuallyExclusive = true )

Set whether layers are mutually-exclusive.

ERRVALUE GRE::GROUP::SetName ( const MISTRING & newname )

Set group name.

Parameters:

newname

New name

void GRE::GROUP::SetNeedUpdateExtents ( ) [inline]

Set group to recompute extents.

void GRE::GROUP::SetOrientation	(	UINT8	NewRotBase,
		double	NewRotAngle
	)			`[inline]`

Set group rotation base and orientation.

Parameters:

	NewRotBase	ROTBASE_Projection or ROTBASE_North
	NewRotAngle	Rotation angle, radians clockwise relative to base

void GRE::GROUP::SetPosnAttachGeographic ( GRE::GROUP * RefGroup = 0 )

Set positioning attachment as geographic.