GEOG 281 - raster vs vector

Question 1

raster - data representation

Answer 1

grid of cells (pixels), each cell has specific value

Question 2

vector - data representation

Answer 2

discrete features using points, lines, and polygons

Question 3

raster - data type suitability

Answer 3

better for continuous data (elevation, temp)

Question 4

vector - data type suitability

Answer 4

better for discrete data (property boundaries, roads)

Question 5

raster - data storage and file size

Answer 5

large file sizes, need to store values for every pixel

Question 6

vector - data size and file size

Answer 6

smaller file size, stores coordinates and attributes efficiently

Question 7

raster - analysis and processing

Answer 7

ideal for mathematical and spatial analysis, often faster for large areas, but less precise at boundaries due to pixel resolution

Question 8

vector - analysis and processing

Answer 8

better for network analysis, topology, and detailed feature-based operations, more precise for representing boundaries and detailed shapes

Question 9

raster - attribute data

Answer 9

cell stores one value; limited ability to associate multiple attributes with single location

Question 10

vector - attribute data

Answer 10

can associate multiple attributes (attribute table) with each feature

Question 11

raster - resolution and precision

Answer 11

limited by cell size; larger cells result in lower resolution and loss of detail

Question 12

vector - resolution and precision

Answer 12

high precision since features are defined by exact coordinates

Question 13

raster - visualization

Answer 13

suitable for imagery and continuous surfaces

Question 14

vector - visualization

Answer 14

better for clear, sharp visualizations of discrete features

Question 15

raster - software and applications

Answer 15

remote sensing

Question 16

vector - software and applications

Answer 16

Computer-aided design systems or urban planning tools

Question 17

raster to vector conversion

Answer 17

oversimplifies continuous data

Question 18

vector to raster data

Answer 18

introduces resolution limits