ossimPointCloudGeometry Class Reference

#include <ossimPointCloudGeometry.h>

Inheritance diagram for ossimPointCloudGeometry:

Public Types
enum	PositionFormat { UNKNOWN, GEOGRAPHIC, MAP_PROJECTED, ECF_METERS }

Public Member Functions
	ossimPointCloudGeometry (const ossimString &wkt)
	Constructs from WKT specification. More...
	ossimPointCloudGeometry (PositionFormat f=GEOGRAPHIC)
	If arg left to default GEOGRAPHIC, this geometry is essentially unity transform except for a possible datum change if requested. More...
	~ossimPointCloudGeometry ()
bool	operator== (const ossimPointCloudGeometry &other) const
PositionFormat	getRawPosFormat () const
	While the raw point positions may be specified in the data file as either geographic, map projected (feet or meters), or ECF meters, the point positions are stored in OSSIM as either as geographic or map (meters) only. More...
PositionFormat	getStoredPosFormat () const
	This method will return either GEOGRAPHIC or MAP_PROJECTION. More...
const ossimMapProjection *	getProjection () const
const ossimDatum *	getDatum () const
void	convertPos (const ossimDpt3d &stored_pos, ossimGpt &converted_gpos) const
	Method converts a generic 3D point as stored in the argument ossim3Dpt object, and converts it to an ossimGpt, using the preset datum provided in the argument gpt. More...
Public Member Functions inherited from ossimObject
	ossimObject ()
virtual	~ossimObject ()
virtual ossimObject *	dup () const
virtual ossimString	getShortName () const
virtual ossimString	getLongName () const
virtual ossimString	getDescription () const
virtual ossimString	getClassName () const
virtual RTTItypeid	getType () const
virtual bool	canCastTo (ossimObject *obj) const
virtual bool	canCastTo (const RTTItypeid &id) const
virtual bool	canCastTo (const ossimString &parentClassName) const
virtual bool	saveState (ossimKeywordlist &kwl, const char *prefix=0) const
virtual bool	loadState (const ossimKeywordlist &kwl, const char *prefix=0)
virtual std::ostream &	print (std::ostream &out) const
	Generic print method. More...
virtual bool	isEqualTo (const ossimObject &obj, ossimCompareType compareType=OSSIM_COMPARE_FULL) const
virtual void	accept (ossimVisitor &visitor)
Public Member Functions inherited from ossimReferenced
	ossimReferenced ()
	ossimReferenced (const ossimReferenced &)
ossimReferenced &	operator= (const ossimReferenced &)
void	ref () const
	increment the reference count by one, indicating that this object has another pointer which is referencing it. More...
void	unref () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...
void	unref_nodelete () const
	decrement the reference count by one, indicating that a pointer to this object is referencing it. More...
int	referenceCount () const

Private Attributes
PositionFormat	m_format
ossimRefPtr< ossimMapProjection >	m_projection
const ossimDatum *	m_datum

Additional Inherited Members
Protected Member Functions inherited from ossimReferenced
virtual	~ossimReferenced ()

Detailed Description

Definition at line 26 of file ossimPointCloudGeometry.h.

Member Enumeration Documentation

PositionFormat

enum ossimPointCloudGeometry::PositionFormat

Enumerator
UNKNOWN
GEOGRAPHIC
MAP_PROJECTED
ECF_METERS

Definition at line 29 of file ossimPointCloudGeometry.h.

   {
      UNKNOWN,
      GEOGRAPHIC,     // x=lon, y=lat, z=ellipsoid height
      MAP_PROJECTED, // x=easting, y=northing, z=ellipsoid height
      ECF_METERS      // X, Y, Z (see base/ossimEcef)
   };

Constructor & Destructor Documentation

ossimPointCloudGeometry() [1/2]

ossimPointCloudGeometry::ossimPointCloudGeometry

(

const ossimString &

wkt

)

Constructs from WKT specification.

Since the projection units are unknown when the bounds are established, the caller will not know the units of the point coordinates for establishing the bounds.

Definition at line 18 of file ossimPointCloudGeometry.cpp.

References ossimWktProjectionFactory::createProjection(), ossimMapProjection::getDatum(), ossimWktProjectionFactory::instance(), ossimMapProjection::isGeographic(), m_datum, m_format, m_projection, MAP_PROJECTED, and ossimRefPtr< T >::valid().

      : m_format(GEOGRAPHIC),
        m_projection(0),
        m_datum(ossimDatumFactory::instance()->wgs84())
{
   // Establish projection from WKT:
   m_projection = dynamic_cast<ossimMapProjection*>(
         ossimWktProjectionFactory::instance()->createProjection(wkt));

   if (m_projection.valid())
   {
      m_datum = m_projection->getDatum();
      if (!m_projection->isGeographic())
         m_format = MAP_PROJECTED;
   }
}

ossimPointCloudGeometry() [2/2]

ossimPointCloudGeometry::ossimPointCloudGeometry ( PositionFormat  f = GEOGRAPHIC )

inline

If arg left to default GEOGRAPHIC, this geometry is essentially unity transform except for a possible datum change if requested.

Definition at line 48 of file ossimPointCloudGeometry.h.

         : m_format(f),
           m_projection(0),
           m_datum (ossimDatumFactory::instance()->wgs84()) {}

~ossimPointCloudGeometry()

ossimPointCloudGeometry::~ossimPointCloudGeometry ( )

inline

Definition at line 53 of file ossimPointCloudGeometry.h.

{}

Member Function Documentation

convertPos()

void ossimPointCloudGeometry::convertPos	(	const ossimDpt3d &	stored_pos,
		ossimGpt &	converted_gpos
	)		const

Method converts a generic 3D point as stored in the argument ossim3Dpt object, and converts it to an ossimGpt, using the preset datum provided in the argument gpt.

Definition at line 46 of file ossimPointCloudGeometry.cpp.

References ossimGpt::changeDatum(), ossimGpt::datum(), ECF_METERS, GEOGRAPHIC, ossimUnitConversionTool::getMeters(), getProjection(), ossimMapProjection::getProjectionUnits(), ossimGpt::hgt, m_datum, m_format, m_projection, ossimGpt::makeNan(), MAP_PROJECTED, ossimRefPtr< T >::valid(), ossimDpt3d::x, ossimDpt3d::y, and ossimDpt3d::z.

Referenced by ossimPdalReader::parsePoint().

{
   converted_gpos.makeNan();

   // If the data buffer has existing points, transform them into the new projection and datum:
   if (m_format == GEOGRAPHIC)
   {
      ossimGpt gpt (oldPt.y, oldPt.x, oldPt.z, m_datum);
      gpt.changeDatum(converted_gpos.datum());
      converted_gpos = gpt;
   }
   else if ((m_format == MAP_PROJECTED) && m_projection.valid())
   {
      ossimUnitConversionTool uct (1.0, m_projection->getProjectionUnits());
      double coord_scale = uct.getMeters();

      //Need to convert map E, N to lat, lon
      ossimDpt oldMapPt(oldPt.x*coord_scale, oldPt.y*coord_scale);
      ossimGpt gpt(getProjection()->inverse(oldMapPt));
      gpt.changeDatum(m_datum);
      gpt.hgt = oldPt.z*coord_scale;
      gpt.changeDatum(converted_gpos.datum());
      converted_gpos = gpt;
   }
   else if (m_format == ECF_METERS)
   {
      ossimEcefPoint oldEcfPt(oldPt);
      converted_gpos = ossimGpt (oldEcfPt, converted_gpos.datum());
   }

   return;
}

getDatum()

const ossimDatum* ossimPointCloudGeometry::getDatum ( ) const

inline

Definition at line 72 of file ossimPointCloudGeometry.h.

{ return m_datum; }

getProjection()

const ossimMapProjection* ossimPointCloudGeometry::getProjection ( ) const

inline

Definition at line 71 of file ossimPointCloudGeometry.h.

Referenced by convertPos().

{ return m_projection.get(); }

getRawPosFormat()

PositionFormat ossimPointCloudGeometry::getRawPosFormat ( ) const

inline

While the raw point positions may be specified in the data file as either geographic, map projected (feet or meters), or ECF meters, the point positions are stored in OSSIM as either as geographic or map (meters) only.

This method is used by the Point cloud handler object for interpreting the input file's raw position format.

Definition at line 63 of file ossimPointCloudGeometry.h.

{ return m_format; }

getStoredPosFormat()

PositionFormat ossimPointCloudGeometry::getStoredPosFormat ( ) const

inline

This method will return either GEOGRAPHIC or MAP_PROJECTION.

For the latter, the stored coordinates will be in meters.

Definition at line 69 of file ossimPointCloudGeometry.h.

{ return (m_format==ECF_METERS) ? GEOGRAPHIC : m_format; }

operator==()

bool ossimPointCloudGeometry::operator==

(

const ossimPointCloudGeometry &

other

)

const

Definition at line 35 of file ossimPointCloudGeometry.cpp.

References m_format, m_projection, and ossimRefPtr< T >::valid().

{
   if (m_format != other.m_format)
      return false;

   if (m_projection.valid() && other.m_projection.valid() && (*m_projection == *(other.m_projection)))
      return true;

   return false;
}

Member Data Documentation

m_datum

const ossimDatum* ossimPointCloudGeometry::m_datum

private

Definition at line 83 of file ossimPointCloudGeometry.h.

Referenced by convertPos(), and ossimPointCloudGeometry().

m_format

PositionFormat ossimPointCloudGeometry::m_format

private

Definition at line 81 of file ossimPointCloudGeometry.h.

Referenced by convertPos(), operator==(), and ossimPointCloudGeometry().

m_projection

ossimRefPtr<ossimMapProjection> ossimPointCloudGeometry::m_projection

private

Definition at line 82 of file ossimPointCloudGeometry.h.

Referenced by convertPos(), operator==(), and ossimPointCloudGeometry().

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The documentation for this class was generated from the following files:

• ossimPointCloudGeometry.h
• ossimPointCloudGeometry.cpp