Understanding Map Projections

Projections (continued)
planar 17, 104
secant 104
tangent 104
true-direction 12, 104
Q
Quartic Authalic 79
R
Radius 104
Rectified Skewed Orthomorphic 80
Reference ellipsoids. See Ellipsoids
Rhumb lines 16, 104
Robinson 81
RSO. See Rectified Skewed Orthomorphic
S
Sanson–Flamsteed 83
Scale factor 20, 104
Secant projections 13, 14, 104
Semimajor axes 4, 104
Semiminor axes 4, 104
Seven-parameter method 25
Simple Conic 82
Sinusoidal 83
Space Oblique Mercator 84
SPCS. See State Plane Coordinate System
Spheres 104
Spherical coordinate systems 104
Spheroids 104
discussion 4
eccentricity 101
ellipticity 101
flattening 4, 102
major axis 103
minor axis 103
semimajor axis 4, 104
semiminor axis 4, 104
using different 4
Standard lines 13, 104
Standard parallel 1 20
Standard parallel 2 20
Standard parallels 14, 104
State Plane Coordinate System 85, 104
Stereographic 87
Polar case 77
T
Tangent projections 13, 104
Three-parameter method 25
Times 88
Transformations
datum 101
Transverse Mercator 16, 89
Transverse projections 16
True-direction projections 104
defined 12
Two-Point Equidistant 91
U
Units of measure 104
angular 101
linear 103
Universal Polar Stereographic 92
Universal Transverse Mercator 93, 105
UPS 92
UTM 93, 105
V
Van Der Grinten I 94
Vertical Near-Side Perspective 75, 95
W
WGS 1984 105
WGS 1984 and NAD 1983 7
Winkel I 96
Winkel II 97
Winkel Tripel 98
X
X-axis 10
XYZ coordinate systems 24
Y
Y-axis 10
110 • Understanding Map Projections