c. brewer, nationalmapping.us systematic color categories for symbols rd yg pu cy bu or yl gn...
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![Page 1: C. Brewer, NationalMapping.us Systematic color categories for symbols Rd YG Pu Cy Bu Or Yl Gn transportation built-up areas wooded areas forest reserves](https://reader034.vdocuments.net/reader034/viewer/2022051821/56649d975503460f94a8077c/html5/thumbnails/1.jpg)
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
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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
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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
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90K
24K
Multiscale durability:good point overlaps
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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
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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
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C. Brewer, NationalMapping.us
HydrographyMO 1:50K
Tapered by symbolizing upstream drainage area (stream order or length not useful)
Intermittent and perennial symbolized
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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
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Viet Nam
Brazil Botswana
Japan
Examples of international topo maps using stream tapering
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C. Brewer, NationalMapping.us
HydrographyMO 1:50K
Tapered by symbolizing upstream drainage area (stream order or length not useful)
Intermittent and perennial symbolized
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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
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WV 1MArcMap capture
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Flowlines
Perrenial Flowlines
Intermittent Flowlines
Flowline Labels
24K…
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Waterbodies
Inundation Area
Wash
Sand/Mud Flat
Swamp/Marsh
Lake/Pond
Reservoir
Intermittent Lake
24K…
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C. Brewer, NationalMapping.us
Terrain
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Multicolor hillshade with transparency
To>