c. brewer, nationalmapping.us systematic color categories for symbols rd yg pu cy bu or yl gn...
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C. Brewer, NationalMapping.us
Systematic color categories for symbols
Rd
YG
Pu Cy
Bu
Or
Yl
Gntransportationbuilt-up areas
wooded areasforest reservesparks
hydrography
points:emergencyhospitalsschools
Gy
boundaries
Br
Human themes: Natural themes:admin reserveshillshade
C. Brewer, NationalMapping.us
Systematic color categories for symbols
Rd
YG
Pu Cy
Bu
Or
Yl
Gntransportationbuilt-up areas
wooded areasforest reservesparks
hydrography
points:emergencyhospitalsschools
Gy
boundaries
Br
Human themes: Natural themes:admin reserveshillshade
C. Brewer, NationalMapping.us
Color contrasts
• Red roads vs brown contours hard to distinguish – use gray contours
• All colors lighter than black labels – few halos• This is not a road map – do not use whole contrast
range on road categories• Leave contrast available for update
and overlay of operational information– magenta could be used for additions if no magenta symbols
• Contrasting outlines on point symbols separate from each other and background
90K
24K
Multiscale durability:good point overlaps
Halos and casings
- Dull greenish brown halo on contour labels
- Slightly blue halo on hydro labels
- Slightly beige casing on local roads
- Slightly gray fill in road shields
- Slightly gray drop shadow on populated place names
Other labels dark enough to read over content
C. Brewer, NationalMapping.us
Geoprocessing for map design
• Contour cracking for faster drawing• Polygon-to-line for dashed lines• Dissolve on attribute to join small segments (e.g., roads)• Pair layers with version not symbolized for labels with
different classes (e.g., flowlines, admin areas, populated places)
• Flowline upstream drainage area (UDA) calculated for stream tapering
• Smooth DEM first to create generalized contours and hillshade for terrain
C. Brewer, NationalMapping.us
HydrographyMO 1:50K
Tapered by symbolizing upstream drainage area (stream order or length not useful)
Intermittent and perennial symbolized
C. Brewer, NationalMapping.us
Stream tapering
Width
(pts) RGB
lighter
0.38100,180,200
0.75100,180,200
med blue
1.13 50,165,200
1.50 50,165,200
darker
1.88 0,150,200
2.25 0,150,200
Viet Nam
Brazil Botswana
Japan
Examples of international topo maps using stream tapering
C. Brewer, NationalMapping.us
HydrographyMO 1:50K
Tapered by symbolizing upstream drainage area (stream order or length not useful)
Intermittent and perennial symbolized
C. Brewer, NationalMapping.us
Stream tapering details
Perennial Flowlines
UDA class breaks Line weights in points
Dry Humid Blues24K - 50KHigh Res
NHD
50K - 215K 50~200K
LoD**
215K - 320K Need new
LoD?320K - 500K
Need new LoD?500K - 1M
Need new LoD?
min-20 min-2 pale 0.38 0.38 0.38 No symbol No symbol
50 5 light 0.75 0.75 0.75 No symbol No symbol
100 10 light 1.13 1.13 1.13 No symbol No symbol
300 30 med 1.50 1.50 *1.13 0.63 0.50
3000 300 med 1.88 1.88 1.50 0.88 0.63
max max dark 2.25 2.25 1.88 1.13 0.75
notes** ’ difs’
removed at 100K
* Color change only
WV 1MArcMap capture
Flowlines
Perrenial Flowlines
Intermittent Flowlines
Flowline Labels
24K…
Waterbodies
Inundation Area
Wash
Sand/Mud Flat
Swamp/Marsh
Lake/Pond
Reservoir
Intermittent Lake
24K…
C. Brewer, NationalMapping.us
Terrain
Multicolor hillshade with transparency
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