Base class for 2d point cloud renderer prepared data containers. More...

Inheritance diagram for QgsPreparedPointCloudRendererData:

Public Member Functions
virtual	~QgsPreparedPointCloudRendererData ()

virtual QColor	pointColor (const QgsPointCloudBlock *block, int i, double z)=0
	An optimised method of retrieving the color of a point from a point cloud block.

virtual bool	prepareBlock (const QgsPointCloudBlock *block)=0
	Prepares the renderer for using the specified block.

virtual QSet< QString >	usedAttributes () const =0
	Returns the set of attributes used by the prepared point cloud renderer.

Detailed Description

Base class for 2d point cloud renderer prepared data containers.

Definition at line 259 of file qgspointcloudrenderer.h.

Constructor & Destructor Documentation

QgsPreparedPointCloudRendererData::~QgsPreparedPointCloudRendererData ( )

virtualdefault

virtual QColor QgsPreparedPointCloudRendererData::pointColor	(	const QgsPointCloudBlock *	block,
		int	i,
		double	z
	)

pure virtual

An optimised method of retrieving the color of a point from a point cloud block.

Before calling this method prepareBlock() must be called for each incoming point cloud block.

virtual bool QgsPreparedPointCloudRendererData::prepareBlock ( const QgsPointCloudBlock * block )

pure virtual

Prepares the renderer for using the specified block.

Returns false if preparation failed.

virtual QSet< QString > QgsPreparedPointCloudRendererData::usedAttributes ( ) const

pure virtual

Returns the set of attributes used by the prepared point cloud renderer.

The documentation for this class was generated from the following files: