Opisan je postupak određivanja duljine obalne crte i površine otoka Raba s karata mjerila 1:25 000, 1:50 000, 1:100 000, 1:200 000, 1:300 000, 1:500 000, 1:1 000 000 i 1:2 000 000. Listovi karata u mjerilu 1:25 000, 1:100 000 i 1:200 000 dobiveni su u georeferenciranom rasterskom formatu, a ostali su skenirani i georeferencirani. Izvršena je potom ručna vektorizacija obalne crte i transformacija svih koordinata u 5. zonu Gauss-Krügerove projekcije. Duljina obalne crte i površina otoka izračunana je u Gauss-Krügerovoj projekciji pri čem su uzete u obzir deformacije projekcije. Rezultati su dani u tablicama i prikazani grafički.The procedure to determine the coastline length and the area of the island of Rab from the maps at the scales 1:25 000, 1:50 000, 1:100 000, 1:200 000, 1:300 000, 1:500 000, 1:1 000 000 and 1:2 000 000 is described. The map sheets at the scales 1:25 000, 1:100 000 and 1:200 000 were obtained already in a georeferenced raster format, and the others were scanned and georeferenced. This was followed by a manual vectorization of the coastline and a transformation of all coordinates into the 5th zone of the Gauss-Krüger projection. The length of the coastline and the area of the island were calculated in the Gauss-Krüger projection taking into account the deformations of the projection. The results are given in tables and represented graphically
