Trait opencv::prelude::SparseMatTrait

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pub trait SparseMatTrait: SparseMatTraitConst {
Show 21 methods    // Required method
    fn as_raw_mut_SparseMat(&mut self) -> *mut c_void;

    // Provided methods
    fn set_flags(&mut self, val: i32) { ... }
    fn hdr(&mut self) -> SparseMat_Hdr { ... }
    fn set_hdr(&mut self, val: &mut SparseMat_Hdr) { ... }
    fn create(&mut self, dims: i32, _sizes: &i32, _type: i32) -> Result<()> { ... }
    fn clear(&mut self) -> Result<()> { ... }
    fn addref(&mut self) -> Result<()> { ... }
    fn release(&mut self) -> Result<()> { ... }
    fn ptr(
        &mut self,
        i0: i32,
        create_missing: bool,
        hashval: &mut size_t
    ) -> Result<*mut u8> { ... }
    fn ptr_1(
        &mut self,
        i0: i32,
        i1: i32,
        create_missing: bool,
        hashval: &mut size_t
    ) -> Result<*mut u8> { ... }
    fn ptr_2(
        &mut self,
        i0: i32,
        i1: i32,
        i2: i32,
        create_missing: bool,
        hashval: &mut size_t
    ) -> Result<*mut u8> { ... }
    fn ptr_3(
        &mut self,
        idx: &i32,
        create_missing: bool,
        hashval: &mut size_t
    ) -> Result<*mut u8> { ... }
    fn erase(&mut self, i0: i32, i1: i32, hashval: &mut size_t) -> Result<()> { ... }
    fn erase_1(
        &mut self,
        i0: i32,
        i1: i32,
        i2: i32,
        hashval: &mut size_t
    ) -> Result<()> { ... }
    fn erase_2(&mut self, idx: &i32, hashval: &mut size_t) -> Result<()> { ... }
    fn begin_mut(&mut self) -> Result<SparseMatIterator> { ... }
    fn end_mut(&mut self) -> Result<SparseMatIterator> { ... }
    fn node_1(&mut self, nidx: size_t) -> Result<SparseMat_Node> { ... }
    fn new_node(&mut self, idx: &i32, hashval: size_t) -> Result<*mut u8> { ... }
    fn remove_node(
        &mut self,
        hidx: size_t,
        nidx: size_t,
        previdx: size_t
    ) -> Result<()> { ... }
    fn resize_hash_tab(&mut self, newsize: size_t) -> Result<()> { ... }
}

Expand description

Mutable methods for core::SparseMat

Required Methods§

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

Provided Methods§

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fn create(&mut self, dims: i32, _sizes: &i32, _type: i32) -> Result<()>

reallocates sparse matrix.

If the matrix already had the proper size and type, it is simply cleared with clear(), otherwise, the old matrix is released (using release()) and the new one is allocated.

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fn clear(&mut self) -> Result<()>

sets all the sparse matrix elements to 0, which means clearing the hash table.

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fn addref(&mut self) -> Result<()>

manually increments the reference counter to the header.

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fn release(&mut self) -> Result<()>

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fn ptr( &mut self, i0: i32, create_missing: bool, hashval: &mut size_t ) -> Result<*mut u8>

specialized variants for 1D, 2D, 3D cases and the generic_type one for n-D case. return pointer to the matrix element. - if the element is there (it’s non-zero), the pointer to it is returned - if it’s not there and createMissing=false, NULL pointer is returned - if it’s not there and createMissing=true, then the new element is created and initialized with 0. Pointer to it is returned - if the optional hashval pointer is not NULL, the element hash value is not computed, but *hashval is taken instead.

returns pointer to the specified element (1D case)