GIS 6

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Nichols College *

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Computer Science

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Dec 6, 2023

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docx

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The old GIS adage “raster is faster, but vector is corrector” comes from the two different fundamental GIS models: vector and raster. Each of these models has its own advantages and disadvantages. The vector model uses points and line segments to identify locations on the earth while the raster model uses a series of cells to represent locations on the earth. What are your thoughts on this? If you had to explain this to a group of elementary school kids, how would you do this? Determining which model to use really depends on the manner in which one wants their map and data displayed. The vector model uses points and line segments to identify locations on the earth while the raster model uses a series of cells to represent locations on the earth. Based on this, one would assume that vector models are best utilized to highlight points of interest or trails for example while raster models are used for “capturing, storing, and analyzing data such as elevation, temperature, soil pH, etc. that vary continuously from location to location” (What is the Difference, 2019). I feel that vector models provide a better visual representation of the data at hand while vector models provide a more analytical output. When explaining this to a group of elementary school kids, I would emphasize that vector models focus on shapes while raster models use pixels and are more pattern driven. Utilizing a raster model can almost be like playing a game of battleship where the battlefield is essentially a group of pixels and the ships can be data points providing patterns based on how the ships are situated. A vector model could be the instruction manual with a map of the ocean (playing field) and where the ships are shown on here.
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