Elongation(vector data)

Calculate elongation of shape

vm_c_elong_mn(landscape, class_col)

Arguments

landscape

the input landscape image,

class_col

the name of the class column of the input landscape

Value

the function returns tibble with the calculated values in column "value", this function returns also some important information such as level, class, patch id and metric name.

Details

ratio between major and minor axis length

References

Jiao, L., Liu, Y., & Li, H. (2012). Characterizing land-use classes in remote sensing imagery by shape metrics. ISPRS Journal of Photogrammetry and Remote Sensing, 72, 46–55. https://doi.org/10.1016/j.isprsjprs.2012.05.012

Examples

vm_c_elong_mn(vector_landscape, "class")
#> # A tibble: 3 × 5
#>   level class id    metric    value
#>   <chr> <chr> <chr> <chr>     <dbl>
#> 1 class 1     NA    elong_mn 0.0964
#> 2 class 2     NA    elong_mn 0.0669
#> 3 class 3     NA    elong_mn 0.0804