Flow123d  release_2.2.0-19-g1279b7e
Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes | Friends | List of all members
ObservePoint Class Reference

#include <observe.hh>

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Public Member Functions

 DECLARE_INPUT_EXCEPTION (ExcNoInitialPoint,<< "Failed to find the element containing the initial observe point.\n")
 
 TYPEDEF_ERR_INFO (EI_RegionName, std::string)
 
 TYPEDEF_ERR_INFO (EI_NLevels, unsigned int)
 
 DECLARE_INPUT_EXCEPTION (ExcNoObserveElement,<< "Failed to find the observe element with snap region: "<< EI_RegionName::qval<< " close to the initial observe point. Using maximal number of neighbour levels: "<< EI_NLevels::val<< "\n")
 
unsigned int element_idx () const
 
arma::vec3 global_coords () const
 

Static Public Member Functions

static const Input::Type::Recordget_input_type ()
 

Protected Member Functions

 ObservePoint ()
 
 ObservePoint (Input::Record in_rec, unsigned int point_idx)
 
void update_projection (unsigned int i_elm, arma::vec local_coords, arma::vec3 global_coords)
 
bool have_observe_element ()
 
template<int ele_dim>
void snap_to_subelement ()
 
void snap (Mesh &mesh)
 
void find_observe_point (Mesh &mesh)
 
void output (ostream &out, unsigned int indent_spaces, unsigned int precision)
 

Protected Attributes

Input::Record in_rec_
 Index in the input array. More...
 
std::string name_
 Observation point name. More...
 
arma::vec3 input_point_
 Input coordinates of the initial position of the observation point. More...
 
unsigned int snap_dim_
 
string snap_region_name_
 
unsigned int max_levels_
 
unsigned int element_idx_
 Final element of the observe point. The index in the mesh. More...
 
arma::vec3 global_coords_
 Global coordinates of the observation point. More...
 
arma::vec local_coords_
 Local (barycentric) coordinates on the element. More...
 
double distance_
 

Friends

class Observe
 Only Observe should use this class directly. More...
 

Detailed Description

Class representing single observe point, used internally by the class Observe. Members: input_pos_, snap_dim_, snap_region_name_ are set in constructor. Should be checked before passed in. Members: element_idx_, global_coords_, local_coords_ are derived, set in Observe::find_observe_points.

Definition at line 27 of file observe.hh.

Constructor & Destructor Documentation

ObservePoint::ObservePoint ( )
protected

Default constructor just for testing.

Definition at line 57 of file observe.cc.

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ObservePoint::ObservePoint ( Input::Record  in_rec,
unsigned int  point_idx 
)
protected

Constructor. Read from input.

Definition at line 61 of file observe.cc.

Member Function Documentation

ObservePoint::DECLARE_INPUT_EXCEPTION ( ExcNoInitialPoint  ,
<< "Failed to find the element containing the initial observe point.\n"   
)
ObservePoint::DECLARE_INPUT_EXCEPTION ( ExcNoObserveElement  ,
<< "Failed to find the observe element with snap region: "<< EI_RegionName::qval<< " close to the initial observe point. Using maximal number of neighbour levels: "<< EI_NLevels::val<< "\n"   
)
unsigned int ObservePoint::element_idx ( ) const
inline

Return index of observation point in the mesh.

Definition at line 42 of file observe.hh.

void ObservePoint::find_observe_point ( Mesh mesh)
protected

Find the observe element and the definitive observe point.

Algorithm:

  1. find element containing the point (initial element)
  2. check initial element for region match possibly set it as (observe element)
  3. add neighbours into processing_list for the next level
  4. while we have no observe element: pass through the processing list of the current level
  5. if element match the region, project and clip the init point, update observe element.
  6. snapping on the observe element

Definition at line 135 of file observe.cc.

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const Input::Type::Record & ObservePoint::get_input_type ( )
static

Definition at line 29 of file observe.cc.

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arma::vec3 ObservePoint::global_coords ( ) const
inline

Return global coordinates of the observation point.

Definition at line 48 of file observe.hh.

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bool ObservePoint::have_observe_element ( )
protected

Returns true if we have already found any observe element.

Definition at line 96 of file observe.cc.

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void ObservePoint::output ( ostream &  out,
unsigned int  indent_spaces,
unsigned int  precision 
)
protected

Output the observe point information into a YAML formated stream, indent by given number of spaces + "- ".

Definition at line 260 of file observe.cc.

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void ObservePoint::snap ( Mesh mesh)
protected

Snap to the center of closest subelement with dimension snap_dim_. This makes final adjustment of global_coords_ and local_coords_.

Definition at line 121 of file observe.cc.

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template<int ele_dim>
void ObservePoint::snap_to_subelement ( )
protected

Snap local coords to the subelement. Called by the snap method.

Definition at line 103 of file observe.cc.

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ObservePoint::TYPEDEF_ERR_INFO ( EI_RegionName  ,
std::string   
)
ObservePoint::TYPEDEF_ERR_INFO ( EI_NLevels  ,
unsigned  int 
)
void ObservePoint::update_projection ( unsigned int  i_elm,
arma::vec  local_coords,
arma::vec3  global_coords 
)
protected

Update the observe element and the projection of the initial point on it.

Definition at line 82 of file observe.cc.

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Friends And Related Function Documentation

friend class Observe
friend

Only Observe should use this class directly.

Definition at line 144 of file observe.hh.

Member Data Documentation

double ObservePoint::distance_
protected

Distance of found projection from the initial point. If we find more candidates we pass in the closest one.

Definition at line 141 of file observe.hh.

unsigned int ObservePoint::element_idx_
protected

Final element of the observe point. The index in the mesh.

Definition at line 131 of file observe.hh.

arma::vec3 ObservePoint::global_coords_
protected

Global coordinates of the observation point.

Definition at line 134 of file observe.hh.

Input::Record ObservePoint::in_rec_
protected

Index in the input array.

Definition at line 106 of file observe.hh.

arma::vec3 ObservePoint::input_point_
protected

Input coordinates of the initial position of the observation point.

Definition at line 112 of file observe.hh.

arma::vec ObservePoint::local_coords_
protected

Local (barycentric) coordinates on the element.

Definition at line 137 of file observe.hh.

unsigned int ObservePoint::max_levels_
protected

Maximal number of observe element search levels.

Definition at line 128 of file observe.hh.

std::string ObservePoint::name_
protected

Observation point name.

Definition at line 109 of file observe.hh.

unsigned int ObservePoint::snap_dim_
protected

Snap to the center of the object of given dimension. Value 4 and greater means no snapping.

Definition at line 118 of file observe.hh.

string ObservePoint::snap_region_name_
protected

Region of the snapping element.

Definition at line 123 of file observe.hh.


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