TECA
The Toolkit for Extreme Climate Analysis
teca_valid_value_mask Class Reference

an algorithm that computes a mask identifying valid values More...

#include <teca_valid_value_mask.h>

Inheritance diagram for teca_valid_value_mask:
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Collaboration diagram for teca_valid_value_mask:
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Public Member Functions

std::shared_ptr< teca_valid_value_maskshared_from_this ()
 
std::shared_ptr< teca_valid_value_mask const > shared_from_this () const
 
 teca_valid_value_mask (const teca_valid_value_mask &src)=delete
 
 teca_valid_value_mask (teca_valid_value_mask &&src)=delete
 
teca_valid_value_maskoperator= (const teca_valid_value_mask &src)=delete
 
teca_valid_value_maskoperator= (teca_valid_value_mask &&src)=delete
 
const char * get_class_name () const override
 
mask_arrays

explicitly set a list of input arrays to process. By default all arrays are processed. Use this property to compute masks for a subset of the arrays,

size_t get_number_of_mask_arrays ()
 
void append_mask_array (const std::string &v)
 
void set_mask_array (const std::string &v)
 
void set_mask_array (size_t i, const std::string &v)
 
void set_mask_arrays (const std::vector< std::string > &v)
 
void set_mask_arrays (const std::initializer_list< std::string > &&l)
 
const std::string & get_mask_array (size_t i) const
 
const std::vector< std::string > & get_mask_arrays () const
 
void clear_mask_arrays ()
 
enable_valid_range

enable the use of valid_range, valid_min, valid_max attributes. by default this is off.

void set_enable_valid_range (const int &v)
 
const int & get_enable_valid_range () const
 
- Public Member Functions inherited from teca_algorithm
 teca_algorithm (const teca_algorithm &src)=delete
 
 teca_algorithm (teca_algorithm &&src)=delete
 
teca_algorithmoperator= (const teca_algorithm &src)=delete
 
teca_algorithmoperator= (teca_algorithm &&src)=delete
 
void set_communicator (MPI_Comm comm)
 
MPI_Comm get_communicator ()
 get the active communicator More...
 
virtual teca_algorithm_output_port get_output_port (unsigned int port=0)
 
void set_input_connection (const teca_algorithm_output_port &port)
 set an input to this algorithm More...
 
virtual void set_input_connection (unsigned int id, const teca_algorithm_output_port &port)
 set an input to this algorithm More...
 
virtual void remove_input_connection (unsigned int id)
 remove input connections More...
 
void clear_input_connections ()
 remove all input connections More...
 
const_p_teca_dataset get_output_data (unsigned int port=0)
 
void pop_cache (unsigned int port=0, int top=0)
 
void set_cache_size (unsigned int n)
 set the cache size. the default is 1. (threadsafe) More...
 
virtual int update ()
 execute the pipeline from this instance up. More...
 
virtual int update (unsigned int port)
 execute the pipeline from this instance up. More...
 
virtual teca_metadata update_metadata (unsigned int port=0)
 get meta data considering this instance up. More...
 
void set_executive (p_teca_algorithm_executive exe)
 set the executive More...
 
p_teca_algorithm_executive get_executive ()
 get the executive More...
 
virtual void to_stream (std::ostream &s) const
 
virtual void from_stream (std::istream &s)
 deserialize from the stream. More...
 
void set_verbose (const int &v)
 
const int & get_verbose () const
 

Static Public Member Functions

static p_teca_valid_value_mask New ()
 

Additional Inherited Members

- Protected Member Functions inherited from teca_algorithm
void set_number_of_input_connections (unsigned int n)
 
void set_number_of_output_ports (unsigned int n)
 
virtual void set_modified ()
 
void set_modified (unsigned int port)
 an overload to set_modified by port More...
 
virtual teca_metadata get_cache_key (unsigned int port, const teca_metadata &request) const
 
virtual teca_metadata get_output_metadata (teca_algorithm_output_port &current)
 
virtual const_p_teca_dataset request_data (teca_algorithm_output_port &port, const teca_metadata &request)
 
virtual int validate_cache (teca_algorithm_output_port &current)
 
virtual void clear_modified (teca_algorithm_output_port current)
 
const_p_teca_dataset get_output_data (unsigned int port, const teca_metadata &request)
 
int cache_output_data (unsigned int port, const teca_metadata &request, const_p_teca_dataset &data)
 
void clear_cache (unsigned int port)
 clear the cache on the given output port More...
 
unsigned int get_number_of_input_connections ()
 get the number of input connections More...
 
teca_algorithm_output_portget_input_connection (unsigned int i)
 
void clear_modified (unsigned int port)
 clear the modified flag on the i'th output More...
 
int get_modified (unsigned int port) const
 return the output port's modified flag value More...
 
- Protected Attributes inherited from teca_algorithm
int verbose
 

Detailed Description

an algorithm that computes a mask identifying valid values

For each requested mask, from its associated input array, compute a mask set to 1 where the data is valid and 0 everywhere else. Downstream algorithms then may look for the mask array and process the data in such a way as to produce valid results in the presence of missing data.

Validity is determined by comparing the array's elements to the fill value as specified in the array's attributes _FillValue or missing_value field. If neither of these attribute fields are present then no mask is computed.

The masks generated are stored in the output mesh with the same centering as the input variable they were generated from, and named using the variable's name with the string "_valid" appended. For example if a mask was generated for a variable named "V" it will be named "V_valid".

Masks are requested for specific arrays in one of two ways. One may use the mask_arrays algorithm property to explicitly name the list of variables to compute masks for. Alternatively, a heuristic applied to incoming requests determines if masks should be generated. Specifically the string "_valid" is looked for at the end of each requested array. If it is found then the mask for the variable named by removing "_valid" is generated. For example the request for "V_valid" would result in the mask being generated for the variable "V".

Member Function Documentation

◆ append_mask_array()

void teca_valid_value_mask::append_mask_array ( const std::string &  v)
inline

append to the mask_array algorithm vector property

◆ clear_mask_arrays()

void teca_valid_value_mask::clear_mask_arrays ( )
inline

clear the mask_array algorithm vector property

◆ get_class_name()

const char* teca_valid_value_mask::get_class_name ( ) const
inlineoverridevirtual

returns the name of the class

Implements teca_algorithm.

◆ get_enable_valid_range()

const int& teca_valid_value_mask::get_enable_valid_range ( ) const
inline

Get the value of the enable_valid_range algorithm property

◆ get_mask_array()

const std::string& teca_valid_value_mask::get_mask_array ( size_t  i) const
inline

get the i-th element of the mask_array algorithm vector property

◆ get_mask_arrays()

const std::vector< std::string >& teca_valid_value_mask::get_mask_arrays ( ) const
inline

get the mask_array algorithm vector property

◆ get_number_of_mask_arrays()

size_t teca_valid_value_mask::get_number_of_mask_arrays ( )
inline

get the size of the mask_array algorithm vector property

◆ New()

static p_teca_valid_value_mask teca_valid_value_mask::New ( )
inlinestatic

Returns an instance of teca_valid_value_mask

◆ set_enable_valid_range()

void teca_valid_value_mask::set_enable_valid_range ( const int &  v)
inline

Set the value of the enable_valid_range algorithm property

◆ set_mask_array() [1/2]

void teca_valid_value_mask::set_mask_array ( const std::string &  v)
inline

set the mask_array algorithm vector property to a single value

◆ set_mask_array() [2/2]

void teca_valid_value_mask::set_mask_array ( size_t  i,
const std::string &  v 
)
inline

set the i-th element of the mask_array algorithm vector property

◆ set_mask_arrays() [1/2]

void teca_valid_value_mask::set_mask_arrays ( const std::initializer_list< std::string > &&  l)
inline

set the mask_array algorithm vector property

◆ set_mask_arrays() [2/2]

void teca_valid_value_mask::set_mask_arrays ( const std::vector< std::string > &  v)
inline

set the mask_array algorithm vector property

◆ shared_from_this() [1/2]

std::shared_ptr< teca_valid_value_mask > teca_valid_value_mask::shared_from_this ( )
inline

Enables the static constructor

◆ shared_from_this() [2/2]

std::shared_ptr< teca_valid_value_mask const> teca_valid_value_mask::shared_from_this ( ) const
inline

Enables the static constructor


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