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

QgsCoordinateReferenceSystem QgsRasterViewPort::mDestCRS
int QgsRasterViewPort::mDestDatumTransform
QgsRectangle QgsRasterViewPort::mDrawnExtent

Intersection of current map extent and layer extent.

Definition at line 48 of file qgsrasterviewport.h.

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

QgsCoordinateReferenceSystem QgsRasterViewPort::mSrcCRS
int QgsRasterViewPort::mSrcDatumTransform
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(), QgsRasterLayer::previewAsImage(), 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(), QgsRasterLayer::previewAsImage(), and QgsRasterLayer::previewAsPixmap().


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