Struct MatConstIterator

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pub struct MatConstIterator { /* private fields */ }
Expand description

/////////////////////////////// MatConstIterator //////////////////////////////////

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impl MatConstIterator

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pub fn default() -> Result<MatConstIterator>

default constructor

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pub fn over(_m: &impl MatTraitConst) -> Result<MatConstIterator>

constructor that sets the iterator to the beginning of the matrix

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pub fn with_rows_cols( _m: &impl MatTraitConst, _row: i32, _col: i32, ) -> Result<MatConstIterator>

constructor that sets the iterator to the specified element of the matrix

§C++ default parameters
  • _col: 0
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pub fn with_rows_cols_def( _m: &impl MatTraitConst, _row: i32, ) -> Result<MatConstIterator>

constructor that sets the iterator to the specified element of the matrix

§Note

This alternative version of [with_rows_cols] function uses the following default values for its arguments:

  • _col: 0
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pub fn with_start( _m: &impl MatTraitConst, _pt: Point, ) -> Result<MatConstIterator>

constructor that sets the iterator to the specified element of the matrix

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pub fn copy(it: &impl MatConstIteratorTraitConst) -> Result<MatConstIterator>

copy constructor

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impl Boxed for MatConstIterator

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unsafe fn from_raw( ptr: <MatConstIterator as OpenCVFromExtern>::ExternReceive, ) -> Self

Wrap the specified raw pointer Read more
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fn into_raw( self, ) -> <MatConstIterator as OpenCVTypeExternContainer>::ExternSendMut

Return the underlying raw pointer while consuming this wrapper. Read more
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fn as_raw(&self) -> <MatConstIterator as OpenCVTypeExternContainer>::ExternSend

Return the underlying raw pointer. Read more
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fn as_raw_mut( &mut self, ) -> <MatConstIterator as OpenCVTypeExternContainer>::ExternSendMut

Return the underlying mutable raw pointer Read more
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impl Debug for MatConstIterator

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Drop for MatConstIterator

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl MatConstIteratorTrait for MatConstIterator

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fn as_raw_mut_MatConstIterator(&mut self) -> *mut c_void

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fn set_elem_size(&mut self, val: size_t)

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fn set(&mut self, it: &impl MatConstIteratorTraitConst) -> Result<()>

copy operator
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fn decr(&mut self) -> Result<MatConstIterator>

decrements the iterator
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fn incr(&mut self) -> Result<MatConstIterator>

increments the iterator
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fn seek(&mut self, ofs: ptrdiff_t, relative: bool) -> Result<()>

C++ default parameters Read more
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fn seek_def(&mut self, ofs: ptrdiff_t) -> Result<()>

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fn seek_idx(&mut self, _idx: &i32, relative: bool) -> Result<()>

C++ default parameters Read more
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fn seek_idx_def(&mut self, _idx: &i32) -> Result<()>

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impl MatConstIteratorTraitConst for MatConstIterator

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fn as_raw_MatConstIterator(&self) -> *const c_void

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fn m(&self) -> Mat

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fn elem_size(&self) -> size_t

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fn ptr(&self) -> *const u8

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fn slice_start(&self) -> *const u8

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fn slice_end(&self) -> *const u8

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fn try_deref(&self) -> Result<*const u8>

returns the current matrix element
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fn get(&self, i: ptrdiff_t) -> Result<*const u8>

returns the i-th matrix element, relative to the current
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fn pos(&self) -> Result<Point>

returns the current iterator position
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unsafe fn pos_to(&self, _idx: *mut i32) -> Result<()>

returns the current iterator position
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fn lpos(&self) -> Result<ptrdiff_t>

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fn typ(&self) -> i32

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impl Send for MatConstIterator

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> MatConstIteratorTraitManual for T

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impl<Mat> ModifyInplace for Mat
where Mat: Boxed,

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unsafe fn modify_inplace<Res>( &mut self, f: impl FnOnce(&Mat, &mut Mat) -> Res, ) -> Res

Helper function to call OpenCV functions that allow in-place modification of a Mat or another similar object. By passing a mutable reference to the Mat to this function your closure will get called with the read reference and a write references to the same Mat. This is unsafe in a general case as it leads to having non-exclusive mutable access to the internal data, but it can be useful for some performance sensitive operations. One example of an OpenCV function that allows such in-place modification is imgproc::threshold. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.