[−][src]Struct nannou::image::pnm::PNMHeader
Stores the complete header data of a file.
Internally, provides mechanisms for lossless reencoding. After reading a file with the decoder it is possible to recover the header and construct an encoder. Using the encoder on the just loaded image should result in a byte copy of the original file (for single image pnms without additional trailing data).
Methods
impl PNMHeader
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pub fn subtype(&self) -> PNMSubtype
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Retrieve the format subtype from which the header was created.
pub fn width(&self) -> u32
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The width of the image this header is for.
pub fn height(&self) -> u32
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The height of the image this header is for.
pub fn maximal_sample(&self) -> u32
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The biggest value a sample can have. In other words, the colour resolution.
pub fn as_bitmap(&self) -> Option<&BitmapHeader>
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Retrieve the underlying bitmap header if any
pub fn as_graymap(&self) -> Option<&GraymapHeader>
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Retrieve the underlying graymap header if any
pub fn as_pixmap(&self) -> Option<&PixmapHeader>
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Retrieve the underlying pixmap header if any
pub fn as_arbitrary(&self) -> Option<&ArbitraryHeader>
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Retrieve the underlying arbitrary header if any
pub fn write(&self, writer: &mut dyn Write) -> Result<(), Error>
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Write the header back into a binary stream
Trait Implementations
impl From<ArbitraryHeader> for PNMHeader
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fn from(header: ArbitraryHeader) -> PNMHeader
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impl From<BitmapHeader> for PNMHeader
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fn from(header: BitmapHeader) -> PNMHeader
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impl From<GraymapHeader> for PNMHeader
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fn from(header: GraymapHeader) -> PNMHeader
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impl From<PixmapHeader> for PNMHeader
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fn from(header: PixmapHeader) -> PNMHeader
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Auto Trait Implementations
impl RefUnwindSafe for PNMHeader
impl Send for PNMHeader
impl Sync for PNMHeader
impl Unpin for PNMHeader
impl UnwindSafe for PNMHeader
Blanket Implementations
impl<S, D, Swp, Dwp, T> AdaptInto<D, Swp, Dwp, T> for S where
D: AdaptFrom<S, Swp, Dwp, T>,
Dwp: WhitePoint,
Swp: WhitePoint,
T: Component + Float,
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D: AdaptFrom<S, Swp, Dwp, T>,
Dwp: WhitePoint,
Swp: WhitePoint,
T: Component + Float,
fn adapt_into_using<M>(self, method: M) -> D where
M: TransformMatrix<Swp, Dwp, T>,
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M: TransformMatrix<Swp, Dwp, T>,
fn adapt_into(self) -> D
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T, U> ConvertInto<U> for T where
U: ConvertFrom<T>,
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U: ConvertFrom<T>,
fn convert_into(self) -> U
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fn convert_unclamped_into(self) -> U
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fn try_convert_into(self) -> Result<U, OutOfBounds<U>>
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> SetParameter for T
fn set<T>(&mut self, value: T) -> <T as Parameter<Self>>::Result where
T: Parameter<Self>,
T: Parameter<Self>,
impl<T> SetParameter for T
fn set<T>(&mut self, value: T) -> <T as Parameter<Self>>::Result where
T: Parameter<Self>,
T: Parameter<Self>,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,