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v2d_unit_xyd

nappgui_sys

Function v2d_unit_xyd 

Source 
pub unsafe extern "C" fn v2d_unit_xyd(
    x1: real64_t,
    y1: real64_t,
    x2: real64_t,
    y2: real64_t,
    dist: *mut real64_t,
) -> V2Dd