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1. what parameters to describe the ellipsoid earth model 2. link those Raster vector Shapefile Coverage TIN Grid Image vector 3. 4. 5. 6. Point Line Area Network Surface Continuous data Discrete data what is raster data model, the advantages and disadvantages of using this model why a projection or a coordinate system is needed and important for GIS data latitude of 29.375 in DD = degree___, minutes___, second___ in DMS draw a simple graph to illustrate the three different Earth surfaces, and the relationship of them 7. which two basic data models to represent spatial data 8. three different earth surfaces we mentioned in last lecture, which three? How do we define them? 9. what are TIN and grid, the differences and commons of them 10. what is map projection 11. list and explain different data formats to represent the vector and raster data models 12. which three physical models been used to project the 3-D earth to 2-D map 13. what are shapefile and coverage, the differences and commons of them 14. what is datum? 15. what is vector data model, the advantages and disadvantages of using this model 16. what are the meridian and parallel