QgsRasterViewPort Struct Reference

This class provides details of the viewable area that a raster will be rendered into. More...

#include <qgsrasterviewport.h>

Collaboration diagram for QgsRasterViewPort:

Public Attributes
QgsPoint	mTopLeftPoint
	Coordinate (in output device coordinate system) of top left corner of the part of the raster that is to be rendered.
QgsPoint	mBottomRightPoint
	Coordinate (in output device coordinate system) of bottom right corner of the part of the raster that is to be rendered.
int	mWidth
	Width, number of columns to be rendered.
int	mHeight
	Distance in map units from bottom edge to top edge for the part of the raster that is to be rendered.
QgsRectangle	mDrawnExtent
	Intersection of current map extent and layer extent.
QgsCoordinateReferenceSystem	mSrcCRS
	Source coordinate system.
QgsCoordinateReferenceSystem	mDestCRS
	Target coordinate system.
int	mSrcDatumTransform
int	mDestDatumTransform

Detailed Description

This class provides details of the viewable area that a raster will be rendered into.

The qgsrasterviewport class sets up a viewport / area of interest to be used by rasterlayer draw functions at the point of drawing to the screen.

Definition at line 31 of file qgsrasterviewport.h.

Member Data Documentation

QgsPoint QgsRasterViewPort::mBottomRightPoint

Coordinate (in output device coordinate system) of bottom right corner of the part of the raster that is to be rendered.

Definition at line 38 of file qgsrasterviewport.h.

Referenced by QgsRasterLayer::previewAsPixmap().

QgsCoordinateReferenceSystem QgsRasterViewPort::mDestCRS

Target coordinate system.

Definition at line 54 of file qgsrasterviewport.h.

Referenced by QgsRasterLayer::draw(), and QgsRasterLayer::previewAsPixmap().

int QgsRasterViewPort::mDestDatumTransform

Definition at line 57 of file qgsrasterviewport.h.

Referenced by QgsRasterLayer::draw(), and QgsRasterLayer::previewAsPixmap().

QgsRectangle QgsRasterViewPort::mDrawnExtent

Intersection of current map extent and layer extent.

Definition at line 48 of file qgsrasterviewport.h.

Referenced by QgsRasterDrawer::draw(), and QgsRasterLayer::previewAsPixmap().

int QgsRasterViewPort::mHeight

Distance in map units from bottom edge to top edge for the part of the raster that is to be rendered.

Height, number of rows to be rendered

Definition at line 45 of file qgsrasterviewport.h.

Referenced by QgsRasterDrawer::draw(), QgsRasterLayer::init(), and QgsRasterLayer::previewAsPixmap().

QgsCoordinateReferenceSystem QgsRasterViewPort::mSrcCRS

Source coordinate system.

Definition at line 51 of file qgsrasterviewport.h.

Referenced by QgsRasterLayer::draw(), and QgsRasterLayer::previewAsPixmap().

int QgsRasterViewPort::mSrcDatumTransform

Definition at line 56 of file qgsrasterviewport.h.

Referenced by QgsRasterLayer::draw(), and QgsRasterLayer::previewAsPixmap().

QgsPoint QgsRasterViewPort::mTopLeftPoint

Coordinate (in output device coordinate system) of top left corner of the part of the raster that is to be rendered.

Definition at line 35 of file qgsrasterviewport.h.

Referenced by QgsRasterDrawer::drawImage(), and QgsRasterLayer::previewAsPixmap().

int QgsRasterViewPort::mWidth

Width, number of columns to be rendered.

Definition at line 41 of file qgsrasterviewport.h.

Referenced by QgsRasterDrawer::draw(), QgsRasterLayer::init(), and QgsRasterLayer::previewAsPixmap().

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The documentation for this struct was generated from the following file:

• /tmp/buildd/qgis-2.2.0+wheezy1/src/core/raster/qgsrasterviewport.h