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Rogue Wave Views Maps Package API Reference Guide |
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Rogue Wave Views Maps Package API Reference Guide |
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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.
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