Struct ZoomLevel 

pub struct ZoomLevel(/* private fields */);

The map tile zoom level for the Second Life main map

Implementations

impl ZoomLevel

pub fn try_new(raw_value: u8) -> Result<Self, ZoomLevelError>

impl ZoomLevel

pub fn into_inner(self) -> u8

impl ZoomLevel

pub fn tile_size(&self) -> u16

returns the map tile size in number of regions at this zoom level

This applies to both dimensions equally since both regions and map tiles are square

pub fn tile_size_in_pixels(&self) -> u32

returns the map tile size in pixels at this zoom level

This applies to both dimensions equally since both regions and map tiles are square

pub fn map_tile_corner(&self, _: &GridCoordinates) -> GridCoordinates

returns the lower left (lowest coordinate for each axis) coordinate of the map tile containing the given grid coordinates at this zoom level

That is the coordinates used for the file name of the map tile at this zoom level that contains the region (or gap where a region could be) given by the grid coordinates

pub fn pixels_per_region(&self) -> u16

returns the size of a region in pixels in a map tile of this zoom level

The size applies to both dimensions equally since both regions and map tiles are square

pub fn pixels_per_meter(&self) -> f32

returns the number of pixels per meter at this zoom level

pub fn max_zoom_level_to_fit_regions_into_output_image( region_x: u16, region_y: u16, output_x: u32, output_y: u32, ) -> Result<Self, ZoomFitError>

returns the zoom level that is the highest zoom level that makes sense to use if we want to fit a given area of regions into a given image size assuming we want to always have one map tile pixel on one output pixel

Errors

returns an error if any of the parameters are zero or in the (theoretically impossible if the algorithm is correct) case that ZoomLevel::try_new() returns an error on the calculated value

Trait Implementations

impl Clone for ZoomLevel

fn clone(&self) -> ZoomLevel

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ZoomLevel

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ZoomLevel

fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer.

impl Display for ZoomLevel

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

Formats the value using the given formatter.

impl FromStr for ZoomLevel

type Err = ZoomLevelParseError

The associated error which can be returned from parsing.

fn from_str(raw_string: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for ZoomLevel

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ZoomLevel

fn cmp(&self, other: &ZoomLevel) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ZoomLevel

fn eq(&self, other: &ZoomLevel) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for ZoomLevel

fn partial_cmp(&self, other: &ZoomLevel) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for ZoomLevel

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for ZoomLevel

impl Eq for ZoomLevel

impl StructuralPartialEq for ZoomLevel