Deg uḥric-agi, mi id- nesunɣ-d 20 n tkarḍiwin i yimɣan yemxalafen s usesɣan n QGIS s yin yal imɣi nxedm-as tabadut-is.Nufa-d d akken kra n yimɣan mxalafen deg temsislit, kra deg talɣa, wiyaḍ deg umawal maca amgired ameqqran yettili-d seg tama talɣa. Xxas akken yella umgired gar tmeslayin-agi maca yal amdan ifahem gma-s.