nodes::utils::array_handler::ArrayCache Class Reference

List of all members.

Public Member Functions
def	__contains__
def	__init__
def	__len__
def	add
def	get
def	on_exit
Private Member Functions
def	_remove_array
Private Attributes
	_cache

---

Detailed Description

Caches references to numpy arrays that are not copied but views
of which are converted to VTK arrays.  The caching prevents the user
from deleting or resizing the numpy array after it has been sent
down to VTK.  

Definition at line 52 of file array_handler.py.

---

Member Function Documentation

def nodes::utils::array_handler::ArrayCache::__contains__	(		self,
			vtk_arr
	)

Definition at line 69 of file array_handler.py.

def nodes::utils::array_handler::ArrayCache::__init__

(

self

)

Definition at line 62 of file array_handler.py.

def nodes::utils::array_handler::ArrayCache::__len__

(

self

)

Definition at line 66 of file array_handler.py.

def nodes::utils::array_handler::ArrayCache::_remove_array	(		self,
			key
	)			[private]

Private function that removes the cached array.  Do not
call this unless you know what you are doing.

Definition at line 120 of file array_handler.py.

def nodes::utils::array_handler::ArrayCache::add	(		self,
			vtk_arr,
			np_arr
	)

Add numpy array corresponding to the vtk array to the
cache.

Definition at line 76 of file array_handler.py.

def nodes::utils::array_handler::ArrayCache::get	(		self,
			vtk_arr
	)

Return the cached numpy array given a VTK array.

Definition at line 98 of file array_handler.py.

def nodes::utils::array_handler::ArrayCache::on_exit

(

self

)

Should be registered with atexit.register so the observers are
removed before the VTK arrays destruct.  If not done, this
causes segfaults.  Note that this is not done by default so the
user must explicitly register this function with atexit.

Definition at line 103 of file array_handler.py.

---

Member Data Documentation

nodes::utils::array_handler::ArrayCache::_cache [private]

Definition at line 64 of file array_handler.py.

---

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

• array_handler.py