Cartography / GIS Output

 

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GIS output - maps, charts, tables
 

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map purpose (uses of a map) - navigation, data storage (e.g. forest inventory), geographic communication, aid in decision-making
 

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types of maps - general reference (planimetric & topographic), thematic (to illustrate spatial relations & patterns: soils, forest inventory, income)
 

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map components
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"map proper", bounded by neatline, geo-reference grid (UTM and/or graticule)

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title, date, author, legend, direction (north), scale

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symbology, annotation

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projection, datum, inset map
 

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generalization (as discussed before) - selection, simplification, displacement, smoothing
 

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map design
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consider how a map is viewed - title, spatial patterns, legend, peripheral data

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consider map purpose - general reference vs. thematic

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balance - arrangement of elements

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hierarchy - perceived importance
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relative size (map vs. other elements, symbols on the map)

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colour (dark / bright colours standout)

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location (eyes drawn to centre of page)

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figure-ground relationship - for important features and distinguish between land-water

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contrast - how distinguishable are the map features (done with colour, brightness, pattern, line weight, font size, etc.)
 

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Do's
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use a small number of 'related colours'
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better to use different shades of few colours

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'pre-made' colour ramps use complimentary colours

- gradual change for quantitative

- distinct change for qualitative
 

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use few font types, better to vary font size and 'boldness', also use simple font types
 

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annotation should be horizontal (or vertical or follow feature)
 

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use plain colours / patterns to fill large areas
 

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use hierarchy to clearly communicate your intent (important elements should standout)
 

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remember title, 'map' and legend are most important (supporting data should be muted)
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title should be meaningful

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'map' should be "front & centre"

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legend 'supports' map and should not 'dominate', also needs to be clear (no filenames)
 

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if using a scale bar, include units
 

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Do Not (Avoid)
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inappropriate colours (red associated with danger, blue associated with calm or water)

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overlap symbols and annotation

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place annotation (e.g. place names) across important line work

 

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choropleth maps
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thematic map that classifies a quantitative value and symbolizes it using a colour or shading scheme

 

 

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"non-map" outputs
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cartograms - true locations often sacrificed to enhance spatial relations (subway map, relative size of objects-city populations)

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3-D representation - surfaces

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animations
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bye bye Bowen Island

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around Bowen Island

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thru' Bowen Island, thru2
 

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media
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paper - static, long-lived

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computer monitor - dynamic and short-lived

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web-based - dynamic and interactive