pub struct MappedImage<T> { /* private fields */ }Expand description
A memory-mapped image that provides lazy access to file data
Implementations§
Source§impl<T: Float + FromPrimitive + Clone> MappedImage<T>
impl<T: Float + FromPrimitive + Clone> MappedImage<T>
Sourcepub fn open(path: &Path, shape: (usize, usize)) -> NdimageResult<Self>
pub fn open(path: &Path, shape: (usize, usize)) -> NdimageResult<Self>
Open an existing raw binary image file
Sourcepub fn create(path: &Path, shape: (usize, usize)) -> NdimageResult<Self>
pub fn create(path: &Path, shape: (usize, usize)) -> NdimageResult<Self>
Create a new memory-mapped image file
Sourcepub fn read_region(
&self,
rows: Range<usize>,
cols: Range<usize>,
) -> NdimageResult<Array2<T>>
pub fn read_region( &self, rows: Range<usize>, cols: Range<usize>, ) -> NdimageResult<Array2<T>>
Read a rectangular region from the file
Sourcepub fn write_region(
&self,
data: &ArrayView2<'_, T>,
row_offset: usize,
col_offset: usize,
) -> NdimageResult<()>
pub fn write_region( &self, data: &ArrayView2<'_, T>, row_offset: usize, col_offset: usize, ) -> NdimageResult<()>
Write a rectangular region to the file
Sourcepub fn to_array(&self) -> NdimageResult<Array2<T>>
pub fn to_array(&self) -> NdimageResult<Array2<T>>
Read the entire image into memory
Sourcepub fn from_array(path: &Path, data: &ArrayView2<'_, T>) -> NdimageResult<Self>
pub fn from_array(path: &Path, data: &ArrayView2<'_, T>) -> NdimageResult<Self>
Write an entire array to the file
Auto Trait Implementations§
impl<T> Freeze for MappedImage<T>
impl<T> RefUnwindSafe for MappedImage<T>where
T: RefUnwindSafe,
impl<T> Send for MappedImage<T>where
T: Send,
impl<T> Sync for MappedImage<T>where
T: Sync,
impl<T> Unpin for MappedImage<T>where
T: Unpin,
impl<T> UnsafeUnpin for MappedImage<T>
impl<T> UnwindSafe for MappedImage<T>where
T: UnwindSafe,
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§impl<T> Pointable for T
impl<T> Pointable for T
Source§impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
Source§fn to_subset(&self) -> Option<SS>
fn to_subset(&self) -> Option<SS>
The inverse inclusion map: attempts to construct
self from the equivalent element of its
superset. Read moreSource§fn is_in_subset(&self) -> bool
fn is_in_subset(&self) -> bool
Checks if
self is actually part of its subset T (and can be converted to it).Source§fn to_subset_unchecked(&self) -> SS
fn to_subset_unchecked(&self) -> SS
Use with care! Same as
self.to_subset but without any property checks. Always succeeds.Source§fn from_subset(element: &SS) -> SP
fn from_subset(element: &SS) -> SP
The inclusion map: converts
self to the equivalent element of its superset.