Struct ParamView 

pub struct ParamView<'a>(pub &'a ParamList);

A borrowing view over a ParamList implementing ProjParamLookup and TransParamLookup.

Tuple Fields

0: &'a ParamList

Trait Implementations

impl ProjParamLookup for ParamView<'_>

fn get_dms(&self, key: &str) -> Option<f64>

Look up a key whose value is an angle, returning radians (parsed via PROJ dmstor).

fn get_f64(&self, key: &str) -> Option<f64>

Look up a key whose value is a plain floating-point number.

fn get_int(&self, key: &str) -> Option<i64>

Look up a key whose value is an integer.

fn get_str(&self, key: &str) -> Option<&str>

Look up a key whose value is a string.

fn get_bool(&self, key: &str) -> bool

Return whether a boolean flag is set (bare +key or +key=t/T/true).

fn exists(&self, key: &str) -> bool

Return whether the key is present at all.

impl TransParamLookup for ParamView<'_>

fn get_dms(&self, key: &str) -> Option<f64>

Look up a key whose value is an angle, returning radians (parsed via PROJ dmstor).

fn get_f64(&self, key: &str) -> Option<f64>

Look up a key whose value is a plain floating-point number.

fn get_int(&self, key: &str) -> Option<i64>

Look up a key whose value is an integer.

fn get_str(&self, key: &str) -> Option<&str>

Look up a key whose value is a string.

fn get_bool(&self, key: &str) -> bool

Return whether a boolean flag is set (bare +key or +key=t/T/true).

fn exists(&self, key: &str) -> bool

Return whether the key is present at all.