Type Alias gdal_sys::GDALContourWriter

pub type GDALContourWriter = Option<unsafe extern "C" fn(dfLevel: f64, nPoints: c_int, padfX: *mut f64, padfY: *mut f64, arg1: *mut c_void) -> Type>;

Contour writer callback type

Aliased Type

enum GDALContourWriter {
    None,
    Some(unsafe extern "C" fn(_: f64, _: i32, _: *mut f64, _: *mut f64, _: *mut c_void) -> u32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: f64, _: i32, _: *mut f64, _: *mut f64, _: *mut c_void) -> u32)

Some value of type T.