Projections

Question 1

Map projection

Answer 1

Process of mapping from 3D to 2D

Question 2

Types of developable surfaces

Answer 2

Plane, Cylinder, Cone

Question 3

Secant case

Answer 3

Standard line touches along a parallel of latitude

Question 4

Tangent case

Answer 4

Touches one point on the map

Question 5

Types of aspects

Answer 5

Equatorial, polar, and oblique

Question 6

UTM

Answer 6

Universal transverse Mercator

Question 7

Cylindrical

Answer 7

Rectangle shaped maps with parallels and meridians that intersect at 90 degrees but scale distortion increases as you move away

Question 8

Conic

Answer 8

Doesn’t show the whole world, suitable for areas of mid-latitude, angular extent of pie-wedges determine projections

Question 9

Mathematical projections

Answer 9

Not developed by projective geometry, parallels are straight, non-intersecting lines but meridians converge to the poles

Question 10

Tearing

Answer 10

Maps show an edge on the surface of Earth, every map suffers from tearing

Question 11

Shearing

Answer 11

Bends or warps features without changing their area

Question 12

Compression and exaggeration

Answer 12

Increases or decreases area

Question 13

Equivalent

Answer 13

Areas in the map are identical to the areas on the curved reference surface

Question 14

Conformal

Answer 14

Preserves angular relationships around a point by preserving scale relations about that point in all directions

Question 15

Equidistant

Answer 15

Preserves great circle distance

Question 16

Robinson

Answer 16

Compromise between equivalent and conformal