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Slide 1 Raster Data Slide 2 The Raster Data Model The Raster Data Model is used to model spatial phenomena that vary continuously over a surface and that do not have discrete…

Slide 1 Geographical Database Presented by: Myriam Benkirane Supervised By: Dr. D. Kettani Slide 2 Outline Introduction. What is a Geographical Database? Spatial Database…

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Slide 1 Spatial Data Model: Basic Data Types 2 basic spatial data models exist vector: based on geometry of points lines Polygons raster: based on geometry of grid cells…