27 #ifndef __TERRALIB_RASTER_INTERNAL_POSITIONITERATOR_H
28 #define __TERRALIB_RASTER_INTERNAL_POSITIONITERATOR_H
31 #include "../common/STLUtils.h"
32 #include "../geometry.h"
82 virtual const std::vector<T>
operator*()
const = 0;
91 virtual T
operator[](
const unsigned int i)
const = 0;
94 virtual unsigned int getRow()
const = 0;
97 virtual unsigned int getColumn()
const = 0;
128 virtual void setEnd() = 0;
183 unsigned int getRow()
const;
256 unsigned int getRow()
const;
319 unsigned int getRow()
const;
357 : m_raster(rhs.m_raster)
392 m_actualintersection(-1),
402 m_maxcolumns(r->getNumberOfColumns()),
403 m_maxrows(r->getNumberOfRows()),
404 m_actualintersection(-1),
409 throw Exception(
TE_TR(
"Invalid polygon SRID") );
452 m_polygon(rhs.m_polygon),
453 m_intersections(rhs.m_intersections),
454 m_currline(rhs.m_currline),
455 m_column(rhs.m_column),
457 m_startingcolumn(rhs.m_startingcolumn),
458 m_endingcolumn(rhs.m_endingcolumn),
459 m_startingrow(rhs.m_startingrow),
460 m_endingrow(rhs.m_endingrow),
461 m_maxcolumns(rhs.m_maxcolumns),
462 m_maxrows(rhs.m_maxrows),
463 m_actualintersection(rhs.m_actualintersection),
464 m_nintersections(rhs.m_nintersections)
470 m_intersections.clear();
475 std::vector<te::gm::LineString*> lines;
511 lineinter->
setX(0, pointinter->getX());
512 lineinter->
setY(0, pointinter->getY());
513 lineinter->
setX(1, pointinter->getX());
514 lineinter->
setY(1, pointinter->getY());
516 lines.push_back(lineinter);
531 lines.push_back(lineinter);
538 std::vector<te::gm::LineString*> vg = decompose(gc->
getGeometryN(i));
540 for (
unsigned int j = 0; j < vg.size(); j++)
541 lines.push_back(vg[j]);
547 std::string message =
"An exception has occurred in Polygon Iterator, with geometry " + g->
toString();
549 throw(message.c_str());
560 if (m_actualintersection == -1 || m_actualintersection >= m_nintersections)
564 double nexty = this->m_raster->getGrid()->gridToGeo(0, m_row).y;
566 m_currline->setX(0, m_polygon->getMBR()->getLowerLeft().x);
567 m_currline->setX(1, m_polygon->getMBR()->getUpperRight().x);
568 m_currline->setY(0, nexty);
569 m_currline->setY(1, nexty);
583 if (m_row > m_endingrow)
595 catch(
const std::exception& e)
597 std::cout <<
"Unhandled exception, status:" << std::endl;
598 std::cout <<
" m_startingcolumn: " << m_startingcolumn <<
" m_endingcolumn: " << m_endingcolumn << std::endl;
599 std::cout <<
" m_startingrow: " << m_startingrow <<
" m_endingrow: " << m_endingrow<< std::endl;
600 std::cout <<
" m_column: " << m_column <<
" m_row: " << m_row << std::endl;
601 std::cout <<
" intersection line: " << m_currline->toString() << std::endl << std::endl;
602 std::cout <<
" current polygon: " << m_polygon->toString() << std::endl << std::endl;
603 std::cout <<
" exception message: " << e.what() << std::endl;
604 std::cout << std::endl;
613 intersections->
add(inter);
615 m_actualintersection = 0;
617 m_intersections.clear();
619 m_intersections = decompose(intersections);
621 m_nintersections = m_intersections.size();
631 if (m_startingcolumn > m_endingcolumn)
633 tmp = m_startingcolumn;
634 m_startingcolumn = m_endingcolumn;
635 m_endingcolumn = tmp;
639 m_startingcolumn = m_startingcolumn < 0? 0: m_startingcolumn;
640 m_startingcolumn = m_startingcolumn >= m_maxcolumns? m_maxcolumns - 1: m_startingcolumn;
642 m_endingcolumn = m_endingcolumn < 0? 0: m_endingcolumn;
643 m_endingcolumn = m_endingcolumn >= m_maxcolumns? m_maxcolumns - 1: m_endingcolumn;
648 std::vector<T> values(this->m_raster->getNumberOfBands());
651 for (
unsigned int b = 0; b < this->m_raster->getNumberOfBands(); b++)
653 this->m_raster->getValue(getColumn(), getRow(), value, b);
654 values[b] = ((T) value);
664 this->m_raster->getValue(m_column, m_row, value, i);
683 if (m_column > m_endingcolumn)
685 m_actualintersection++;
687 if (m_actualintersection >= m_nintersections)
690 if (m_row > m_endingrow)
699 m_column = m_startingcolumn;
707 if (m_column < m_startingcolumn)
709 m_actualintersection--;
711 if (m_actualintersection < 0)
714 if (m_row < m_startingrow)
723 m_column = m_endingcolumn;
762 return ( (this->m_row != rhs.
m_row) && (this->m_column != rhs.
m_column));
769 m_currentpixelindex(0),
777 m_currentpixelindex(0),
786 if (inter->isEmpty())
797 double startingcolumn;
801 startingcolumn, startingrow);
807 endingcolumn, endingrow);
812 double x1, x2, y1, y2, geoX, geoY;
813 for(
int r = (
int)startingrow; r <= (int)endingrow; r++)
814 for(
int c = (
int)startingcolumn; c <= (int)endingcolumn; c++)
818 x1 = geoX - resXdiv2; y1 = geoY - resYdiv2;
819 x2 = geoX + resXdiv2; y2 = geoY + resYdiv2;
831 m_currentpixelindex(rhs.m_currentpixelindex),
832 m_pixelsinline(rhs.m_pixelsinline)
838 m_pixelsinline.clear();
843 std::vector<T> values(this->m_raster->getNumberOfBands());
846 for (
unsigned int b = 0; b < this->m_raster->getNumberOfBands(); b++)
848 this->m_raster->getValue(getColumn(), getRow(), value, b);
849 values[b] = ((T) value);
859 this->m_raster->getValue(getColumn(), getRow(), value, i);
865 return (
unsigned int)(m_pixelsinline[m_currentpixelindex]->getY());
870 return (
unsigned int)(m_pixelsinline[m_currentpixelindex]->getX());
875 m_currentpixelindex++;
877 if (m_currentpixelindex >= (
int)(m_pixelsinline.size()))
883 m_currentpixelindex--;
885 if (m_currentpixelindex < 0)
905 this->m_currentpixelindex = -1;
930 m_pixelsinpointset(0),
931 m_currentpixelindex(0)
937 m_pixelsinpointset(p),
938 m_currentpixelindex(0)
946 std::vector<te::gm::Point*> inside_points;
966 m_pixelsinpointset(rhs.m_pixelsinpointset),
967 m_currentpixelindex(rhs.m_currentpixelindex)
973 m_pixelsinpointset.clear();
978 std::vector<T> values(this->m_raster->getNumberOfBands());
981 for (
unsigned int b = 0; b < this->m_raster->getNumberOfBands(); b++)
983 this->m_raster->getValue(getColumn(), getRow(), value, b);
984 values[b] = ((T) value);
994 this->m_raster->getValue(getColumn(), getRow(), value, i);
1001 return (
unsigned int)(m_pixelsinpointset[m_currentpixelindex]->getY());
1006 return (
unsigned int)(m_pixelsinpointset[m_currentpixelindex]->getX());
1011 m_currentpixelindex++;
1013 if (m_currentpixelindex >= (
int) m_pixelsinpointset.size())
1019 m_currentpixelindex--;
1021 if (m_currentpixelindex < 0)
1040 this->m_currentpixelindex = -1;
1064 #endif // __TERRALIB_RASTER_INTERNAL_POSITIONITERATOR_H
std::size_t getNumGeometries() const
It returns the number of geometries in this GeometryCollection.
int m_row
The current row of the iterator.
te::gm::Envelope * getExtent()
Returns the geographic extension of the raster data.
void setEnd()
Sets the iterator position to the end of the current band.
int getSRID() const
It returns the Spatial Reference System ID associated to this geometric object.
int m_startingcolumn
The starting column (in current line) to initialize the iteration.
int m_startingrow
The starting row of the iteration.
A Line is LineString with 2 points.
It describes one band (or dimension) of a raster.
const std::vector< T > operator*() const
Returns a vector of the values in current position (column, row) from iterator.
void setX(std::size_t i, const double &x)
It sets the n-th x coordinate value.
const te::gm::Line * m_line
The spatial restriction to be applied in the iterator.
Point * getEndPoint() const
It returns the curve end point.
int m_nintersections
The number number of intersected lines in current line of the iterator.
void setEnd()
Sets the iterator position to the end of the current band.
te::gm::Line * m_currline
The current line in the iterator.
virtual void operator--()=0
Returns to the previous position.
int m_maxcolumns
The number of columns in band.
bool operator!=(const PolygonIterator< T > &rhs) const
T operator[](const unsigned int i) const
Returns the value in current position (column, row, band) from iterator.
Point * getStartPoint() const
The length of this Curve in its associated spatial reference.
unsigned int getColumn() const
Returns the current column in iterator.
int m_currentpixelindex
The index of the current pixel location.
This class implements the strategy to iterate with spatial restriction, the iteration occurs inside a...
TEGEOMEXPORT bool SatisfySpatialRelation(const Geometry *g1, const Geometry *g2, SpatialRelation relation)
It returns if two geometries satisfy a given spatial relation.
virtual unsigned int getRow() const =0
Returns the current row in iterator.
This class implements the strategy to iterate with spatial restriction, the iteration occurs inside a...
static PointSetIterator end(const te::rst::Raster *r, const std::vector< te::gm::Point * > p)
Returns an iterator referring to after the end of the iterator.
This class is the base for implementing ways to navigate over the band with spatial restriction...
unsigned int getRow() const
Returns the current row in iterator.
An utility struct for representing 2D coordinates.
bool operator!=(const PointSetIterator< T > &rhs) const
void operator++()
Advances to the next position.
int m_actualintersection
The actual line of the iterator.
const te::gm::Polygon * m_polygon
The spatial restriction to be applied in the iterator.
bool operator!=(const LineIterator< T > &rhs) const
#define TE_TR(message)
It marks a string in order to get translated.
T operator[](const unsigned int i) const
Returns the value in current position (column, row, band) from iterator.
PolygonIterator & operator=(const PolygonIterator &rhs)
PointSetIterator & operator=(const PointSetIterator &rhs)
void geoToGrid(const double &x, const double &y, double &col, double &row) const
Get the grid point associated to a spatial location.
int m_endingrow
The ending row of the iteration.
This class implements the strategy to iterate with spatial restriction, the iteration occurs inside a...
int m_endingcolumn
The column (in current line) to finalize the iteration.
AbstractPositionIterator()
Constructor.
Utility functions for dealing with raster data blocks.
void setNextLine(bool updatecurrline=true)
virtual void operator++()=0
Advances to the next position.
void operator++()
Advances to the next position.
An exception class for the Raster module.
std::vector< te::gm::Point * > m_pixelsinline
A vector of pixel locations that intersects the line.
MultiPoint is a GeometryCollection whose elements are restricted to points.
LineString is a curve with linear interpolation between points.
static PolygonIterator end(const te::rst::Raster *r, const te::gm::Polygon *p)
Returns an iterator referring to after the end of the iterator.
const double & getY() const
It returns the Point y-coordinate value.
A point with x and y coordinate values.
An Envelope defines a 2D rectangular region.
An abstract class for raster data strucutures.
virtual unsigned int getColumn() const =0
Returns the current column in iterator.
int m_currentpixelindex
The index of the current pixel location.
double getResolutionX() const
Returns the raster horizontal (x-axis) resolution.
int m_maxrows
The number of rows in band.
void setEnd()
Sets the iterator position to the end of the current band.
std::vector< te::gm::LineString * > decompose(te::gm::Geometry *g)
Decomponse one geometry collection in a vector of basic components (line, point). ...
It gives access to values in one band (dimension) of a raster.
virtual void setEnd()=0
Sets the iterator position to the end of the current band.
virtual const std::vector< T > operator*() const =0
Returns a vector of the values in current position (column, row) from iterator.
Grid * getGrid()
It returns the raster grid.
GeomType getGeomTypeId() const
It returns the geometry subclass type identifier.
Geometry is the root class of the geometries hierarchy, it follows OGC and ISO standards.
void operator--()
Returns to the previous position.
virtual bool isEmpty() const
It returns true if this geometric object is the empty Geometry.
Geometry * getGeometryN(std::size_t i) const
It returns the n-th geometry in this GeometryCollection.
MultiLineString is a MultiCurve whose elements are LineStrings.
int getSRID() const
Returns the raster spatial reference system identifier.
std::vector< te::gm::Point * > m_pixelsinpointset
The spatial restriction to be applied in the iterator.
~AbstractPositionIterator()
Destructor.
Polygon is a subclass of CurvePolygon whose rings are defined by linear rings.
void operator--()
Returns to the previous position.
static PolygonIterator begin(const te::rst::Raster *r, const te::gm::Polygon *p)
Returns an iterator referring to the first value of the band.
const std::vector< T > operator*() const
Returns a vector of the values in current position (column, row) from iterator.
int m_column
The current column of the iterator.
const te::rst::Raster * m_raster
The band from where to get the values.
void add(Geometry *g)
It adds the geometry into the collection.
unsigned int getColumn() const
Returns the current column in iterator.
static LineIterator end(const te::rst::Raster *r, const te::gm::Line *l)
Returns an iterator referring to after the end of the iterator.
std::string toString() const
It returns the data value in a WKT representation.
virtual bool operator!=(const AbstractPositionIterator &rhs) const
Difference operator.
T operator[](const unsigned int i) const
Returns the value in current position (column, row, band) from iterator.
void gridToGeo(const double &col, const double &row, double &x, double &y) const
Get the spatial location of a grid point.
A rectified grid is the spatial support for raster data.
unsigned int getRow() const
Returns the current row in iterator.
double getResolutionY() const
Returns the raster vertical (y-axis) resolution.
Coord2D getUpperRight() const
It returns the upper right coordinate of the envelope.
AbstractPositionIterator & operator=(const AbstractPositionIterator &rhs)
Assignment operator.
void setY(std::size_t i, const double &y)
It sets the n-th y coordinate value.
virtual Geometry * intersection(const Geometry *const rhs) const
It returns a geometric object that represents the point set intersection with another geometry...
void operator++()
Advances to the next position.
virtual T operator[](const unsigned int i) const =0
Returns the value in current position (column, row, band) from iterator.
void operator--()
Returns to the previous position.
unsigned int getColumn() const
Returns the current column in iterator.
It is a collection of other geometric objects.
Coord2D getLowerLeft() const
It returns the lower left coordinate of the envelope.
std::vector< te::gm::LineString * > m_intersections
The points or lines of the intersection between the geometry and the current line.
const std::vector< T > operator*() const
Returns a vector of the values in current position (column, row) from iterator.
const Envelope * getMBR() const
It returns the minimum bounding rectangle for the geometry in an internal representation.
LineIterator & operator=(const LineIterator &rhs)
unsigned int getRow() const
Returns the current row in iterator.
const double & getX() const
It returns the Point x-coordinate value.
TEGEOMEXPORT Geometry * GetGeomFromEnvelope(const Envelope *const e, int srid)
It creates a Geometry (a polygon) from the given envelope.
static PointSetIterator begin(const te::rst::Raster *r, const std::vector< te::gm::Point * > p)
Returns an iterator referring to the first value of the band.
static LineIterator begin(const te::rst::Raster *r, const te::gm::Line *l)
Returns an iterator referring to the first value of the band.