pub fn from_readable(mut readable: impl Read) -> Result<Self, Error> {
        let mut buffer: [u8; 4] = [0u8; 4];
        readable.read_exact(&mut buffer)?;
        let nstages = i32::from_le_bytes(buffer) as usize;

        readable.read_exact(&mut buffer)?;
        let scale = f32::from_le_bytes(buffer);

        readable.read_exact(&mut buffer)?;
        let ntrees = i32::from_le_bytes(buffer) as usize;

        readable.read_exact(&mut buffer)?;
        let depth = i32::from_le_bytes(buffer) as usize;
        let pred_size: usize = match 2usize.checked_pow(depth as u32) {
            Some(value) => value,
            None => return Err(Error::new(ErrorKind::Other, "depth overflow")),
        };
        let code_size = pred_size - 1;

        let mut stages: Stages = Vec::with_capacity(nstages);

        for _ in 0..nstages {
            let mut stage: Stage = Vec::with_capacity(ntrees);

            for _ in 0..ntrees {
                let mut tree: Tree = Vec::with_capacity(code_size);
                let mut predictions: Predictions = Vec::with_capacity(pred_size);

                for _ in 0..code_size {
                    readable.read_exact(&mut buffer)?;
                    let node = ComparisonNode::from_buffer(&buffer);
                    tree.push(node);
                }

                for _ in 0..pred_size {
                    readable.read_exact(&mut buffer)?;
                    let y = f32::from_le_bytes(buffer);

                    readable.read_exact(&mut buffer)?;
                    let x = f32::from_le_bytes(buffer);

                    predictions.push(Vector2::new(x, y));
                }

                stage.push((tree, predictions));
            }

            stages.push(stage);
        }

        Ok(Self {
            depth,
            dsize: pred_size,
            scale,
            stages,
            distrs: (Uniform::new(0.925, 0.94), Uniform::new(-0.075, 0.075)),
        })
    }
/// Create localizer from a readable source.
Create localizer from a readable source.
Create localizer from a readable source .
pub fn from_readable(mut readable: impl Read) -> Result<Self, Error> {
        let mut buffer: [u8; 4] = [0u8; 4];
        readable.read_exact(&mut buffer)?;
        let nstages = i32::from_le_bytes(buffer) as usize;
        readable.read_exact(&mut buffer)?;
        let scale = f32::from_le_bytes(buffer);
        readable.read_exact(&mut buffer)?;
        let ntrees = i32::from_le_bytes(buffer) as usize;
        readable.read_exact(&mut buffer)?;
        let depth = i32::from_le_bytes(buffer) as usize;
        let pred_size: usize = match 2usize.checked_pow(depth as u32) {
            Some(value) => value,
            None => return Err(Error::new(ErrorKind::Other, "depth overflow")),
        };
        let code_size = pred_size - 1;
        let mut stages: Stages = Vec::with_capacity(nstages);
        for _ in 0..nstages {
            let mut stage: Stage = Vec::with_capacity(ntrees);
            for _ in 0..ntrees {
                let mut tree: Tree = Vec::with_capacity(code_size);
                let mut predictions: Predictions = Vec::with_capacity(pred_size);
                for _ in 0..code_size {
                    readable.read_exact(&mut buffer)?;
                    let node = ComparisonNode::from_buffer(&buffer);
                    tree.push(node);
                }
                for _ in 0..pred_size {
                    readable.read_exact(&mut buffer)?;
                    let y = f32::from_le_bytes(buffer);
                    readable.read_exact(&mut buffer)?;
                    let x = f32::from_le_bytes(buffer);
                    predictions.push(Vector2::new(x, y));
                }
                stage.push((tree, predictions));
            }
            stages.push(stage);
        }
        Ok(Self {
            depth,
            dsize: pred_size,
            scale,
            stages,
            distrs: (Uniform::new(0.925, 0.94), Uniform::new(-0.075, 0.075)),
        })
    }
pub fn from_readable ( mut readable : impl Read ) -> Result < Self , Error > { let mut buffer : [ u8 ; 4 ] = [ 0u8 ; 4 ] ; readable . read_exact ( & mut buffer ) ? ; let nstages = i32 :: from_le_bytes ( buffer ) as usize ; readable . read_exact ( & mut buffer ) ? ; let scale = f32 :: from_le_bytes ( buffer ) ; readable . read_exact ( & mut buffer ) ? ; let ntrees = i32 :: from_le_bytes ( buffer ) as usize ; readable . read_exact ( & mut buffer ) ? ; let depth = i32 :: from_le_bytes ( buffer ) as usize ; let pred_size : usize = match 2usize . checked_pow ( depth as u32 ) { Some ( value ) => value , None => return Err ( Error :: new ( ErrorKind :: Other , " " ) ) , } ; let code_size = pred_size - 1 ; let mut stages : Stages = Vec :: with_capacity ( nstages ) ; for _ in 0 .. nstages { let mut stage : Stage = Vec :: with_capacity ( ntrees ) ; for _ in 0 .. ntrees { let mut tree : Tree = Vec :: with_capacity ( code_size ) ; let mut predictions : Predictions = Vec :: with_capacity ( pred_size ) ; for _ in 0 .. code_size { readable . read_exact ( & mut buffer ) ? ; let node = ComparisonNode :: from_buffer ( & buffer ) ; tree . push ( node ) ; } for _ in 0 .. pred_size { readable . read_exact ( & mut buffer ) ? ; let y = f32 :: from_le_bytes ( buffer ) ; readable . read_exact ( & mut buffer ) ? ; let x = f32 :: from_le_bytes ( buffer ) ; predictions . push ( Vector2 :: new ( x , y ) ) ; } stage . push ( ( tree , predictions ) ) ; } stages . push ( stage ) ; } Ok ( Self { depth , dsize : pred_size , scale , stages , distrs : ( Uniform :: new ( 0.925 , 0.94 ) , Uniform :: new ( - 0.075 , 0.075 ) ) , } ) }
Create localizer from a readable source.
Create localizer from a readable source .
readable
impl Read
readable
impl Read