openslide_get_best_level_for_downsample

openslide_sys::sys

Function openslide_get_best_level_for_downsample 

Source 
pub unsafe extern "C" fn openslide_get_best_level_for_downsample(
    osr: *mut openslide_t,
    downsample: f64,
) -> i32
Expand description

Get the best level to use for displaying the given downsample.

@param osr The OpenSlide object. @param downsample The downsample factor. @return The level identifier, or -1 if an error occurred. @since 3.3.0