Rogue Wave Views Maps Package API Reference Guide |
Rogue Wave Views Documentation Home |
Stores information about a CADRG coverage as described in a CADRG table of contents. More...
#include <ilviews/maps/format/cadrg/cadrgutil.h>
Public Member Functions | |
IlInt | getColumns () const |
Returns the number of frame columns in the coverage. More... | |
const IlvCADRGFrame * | getFrame (IlShort row, IlShort column) const |
Returns the frame of the specified row and column. More... | |
IlDouble | getFrameHeight () const |
Returns the height of a frame of the coverage in the file projection system. More... | |
IlDouble | getFrameWidth () const |
Returns the width of a frame of the coverage in the file projection system. More... | |
IlDouble | getHorizontalInterval () const |
Returns the longitude interval between two adjacent pixels of the image. More... | |
IlInt | getIndex () const |
Returns the index of the coverage. More... | |
IlBoolean | getLowerRightCorner (IlvCoordinate &lr) const |
Queries the lower-right corner of the coverage region in the coverage projection. More... | |
IlvProjection * | getProjection () const |
Returns the projection used for the coverage. More... | |
IlInt | getRows () const |
Returns the number of frame rows in the coverage. More... | |
IlBoolean | getUpperLeftCorner (IlvCoordinate &ul) const |
Queries the upper-left corner of the coverage region in the coverage projection. More... | |
IlDouble | getVerticalInterval () const |
Returns the latitude interval between two adjacent pixels of the image. More... | |
Stores information about a CADRG coverage as described in a CADRG table of contents.
Library: ilvmaps
A coverage corresponds physically to a directory in a CADRG distribution. It is composed of a set of frames that are part of the same map.
Most of the coverages are georeferenced, except for those used to store the overview of a CADRG product or the map legends.
Instances of the class IlvCADRGCoverage
are obtained using an IlvCADRGTocReader
.
IlInt IlvCADRGCoverage::getColumns | ( | ) | const |
Returns the number of frame columns in the coverage.
const IlvCADRGFrame* IlvCADRGCoverage::getFrame | ( | IlShort | row, |
IlShort | column | ||
) | const |
Returns the frame of the specified row and column.
row | The row of the frame. |
column | The column of the frame. |
0
if the specified cell is empty. Otherwise, it returns an IlvCADRGFrame
that should not be modified nor deleted. The returned object is deleted by the destructor of the IlvCADRGCoverage
. getRows()
, getColumns()
. IlDouble IlvCADRGCoverage::getFrameHeight | ( | ) | const |
Returns the height of a frame of the coverage in the file projection system.
IlDouble IlvCADRGCoverage::getFrameWidth | ( | ) | const |
Returns the width of a frame of the coverage in the file projection system.
IlDouble IlvCADRGCoverage::getHorizontalInterval | ( | ) | const |
Returns the longitude interval between two adjacent pixels of the image.
IlInt IlvCADRGCoverage::getIndex | ( | ) | const |
Returns the index of the coverage.
IlBoolean IlvCADRGCoverage::getLowerRightCorner | ( | IlvCoordinate & | lr | ) | const |
Queries the lower-right corner of the coverage region in the coverage projection.
lr | Set on return to the coordinates of the lower-right corner of the coverage region into this argument. |
IlTrue
if the coverage is georeferenced. Otherwise, it returns IlFalse
, and the value of ul should not be used. This occurs in the case of legend coverages or of overview coverages. IlvProjection* IlvCADRGCoverage::getProjection | ( | ) | const |
Returns the projection used for the coverage.
The projection is either a geographic projection for non polar areas, or an azimuthal equidistant projection for polar areas.
0
if the coverage is not georeferenced, or shared IlvProjection
that should not be deleted, but that can be locked (and then unlocked when it is not used anymore). IlInt IlvCADRGCoverage::getRows | ( | ) | const |
Returns the number of frame rows in the coverage.
IlBoolean IlvCADRGCoverage::getUpperLeftCorner | ( | IlvCoordinate & | ul | ) | const |
Queries the upper-left corner of the coverage region in the coverage projection.
ul | Set on return to the coordinates of the upper-left corner of the coverage region into this argument. |
IlTrue
if the coverage is georeferenced. Otherwise, it returns IlFalse
, and the value of ul should not be used. This occurs in the case of legend coverages or of overview coverages. IlDouble IlvCADRGCoverage::getVerticalInterval | ( | ) | const |
Returns the latitude interval between two adjacent pixels of the image.
© Copyright 2016, Rogue Wave Software, Inc. All Rights Reserved.
Rogue Wave is a registered trademark of Rogue Wave Software, Inc. in the United States and other countries. All other trademarks are the property of their respective owners.