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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.

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Presentation on theme: "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."— Presentation transcript:

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 parks hydrography points: emergency hospitals schools Gy boundaries Br Human themes:Natural themes:admin reserves hillshade

2 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 parks hydrography points: emergency hospitals schools Gy boundaries Br Human themes:Natural themes:admin reserves hillshade

3 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

4 90K 24K Multiscale durability: good point overlaps

5 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

6 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

7 C. Brewer, NationalMapping.us Hydrography MO 1:50K Tapered by symbolizing upstream drainage area (stream order or length not useful) Intermittent and perennial symbolized

8 C. Brewer, NationalMapping.us Stream tapering Width (pts)RGB lighter 0.38100,180,200 0.75100,180,200 med blue 1.1350,165,200 1.50 50,165,200 darker 1.880,150,200 2.250,150,200

9 Viet Nam Brazil Botswana Japan Examples of international topo maps using stream tapering

10 C. Brewer, NationalMapping.us Hydrography MO 1:50K Tapered by symbolizing upstream drainage area (stream order or length not useful) Intermittent and perennial symbolized

11 C. Brewer, NationalMapping.us Stream tapering details Perennial Flowlines UDA class breaks Line weights in points DryHumidBlues 24K - 50K High Res NHD 50K - 215K 50~200K LoD** 215K - 320K Need new LoD? 320K - 500K Need new LoD? 500K - 1M Need new LoD? min-20min-2pale0.38 No symbol 505light0.75 No symbol 10010light1.13 No symbol 30030med1.50 *1.130.630.50 3000300med1.88 1.500.880.63 max dark2.25 1.881.130.75 notes ** ’ difs’ removed at 100K * Color change only

12 WV 1M ArcMap capture

13 Flowlines Perrenial Flowlines Intermittent Flowlines Flowline Labels 24K…

14 Waterbodies Inundation Area Wash Sand/Mud Flat Swamp/Marsh Lake/Pond Reservoir Intermittent Lake 24K…

15 C. Brewer, NationalMapping.us Terrain

16 Multicolor hillshade with transparency To>


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