osgeo::proj::operation::CoordinateOperationFactory Class Reference

Creates coordinate operations. This factory is capable to find coordinate transformations or conversions between two coordinate reference systems. More...

#include <coordinateoperation.hpp>

Public Member Functions
CoordinateOperationPtr	createOperation (const crs::CRSNNPtr &sourceCRS, const crs::CRSNNPtr &targetCRS) const
	Find a CoordinateOperation from sourceCRS to targetCRS. More...
std::vector< CoordinateOperationNNPtr >	createOperations (const crs::CRSNNPtr &sourceCRS, const crs::CRSNNPtr &targetCRS, const CoordinateOperationContextNNPtr &context) const
	Find a list of CoordinateOperation from sourceCRS to targetCRS. More...

Static Public Member Functions
static CoordinateOperationFactoryNNPtr	create ()
	Instanciate a CoordinateOperationFactory.

Detailed Description

Creates coordinate operations. This factory is capable to find coordinate transformations or conversions between two coordinate reference systems.

Remarks

Implements (partially) CoordinateOperationFactory from GeoAPI

Member Function Documentation

CoordinateOperationPtr osgeo::proj::operation::CoordinateOperationFactory::createOperation	(	const crs::CRSNNPtr &	sourceCRS,
		const crs::CRSNNPtr &	targetCRS
	)		const

Find a CoordinateOperation from sourceCRS to targetCRS.

This is a helper of createOperations(), using a coordinate operation context with no authority factory (so no catalog searching is done), no desired accuracy and no area of interest. This returns the first operation of the result set of createOperations(), or null if none found.

Parameters

sourceCRS	source CRS.
targetCRS	source CRS.

Returns

a CoordinateOperation or nullptr.

std::vector< CoordinateOperationNNPtr > osgeo::proj::operation::CoordinateOperationFactory::createOperations	(	const crs::CRSNNPtr &	sourceCRS,
		const crs::CRSNNPtr &	targetCRS,
		const CoordinateOperationContextNNPtr &	context
	)		const

Find a list of CoordinateOperation from sourceCRS to targetCRS.

The operations are sorted with the most relevant ones first: by descending area (intersection of the transformation area with the area of interest, or intersection of the transformation with the area of use of the CRS), and by increasing accuracy. Operations with unknown accuracy are sorted last, whatever their area.

Parameters

sourceCRS	source CRS.
targetCRS	source CRS.
context	Search context.

Returns

a list

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

• include/proj/coordinateoperation.hpp
• src/coordinateoperation.cpp