cs 128/es 228 - lecture 8a1 map formats & layout muehrcke & muehrcke, 4 ed, p. 1
Post on 22-Dec-2015
216 views
TRANSCRIPT
![Page 1: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/1.jpg)
CS 128/ES 228 - Lecture 8a 1
Map formats & layout
Muehrcke & Muehrcke, 4 ed, p. 1
![Page 2: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/2.jpg)
CS 128/ES 228 - Lecture 8a 2
Maps are: means of
communicating geographical information
visual tools
artistic compositions
Muehrcke & Muehrcke, 4 ed, p. 1
![Page 3: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/3.jpg)
CS 128/ES 228 - Lecture 8a 3
Of first importance:
accurate data,accurately displayed!!
![Page 4: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/4.jpg)
CS 128/ES 228 - Lecture 8a 4
Maps elements*
* aka map components (see text, p. 157 for a different list)
Clarke, 3rd ed. p. 201
![Page 5: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/5.jpg)
CS 128/ES 228 - Lecture 8a 5
Not all maps need all elements
1. Title and figure are virtually always present
2. Place-names (better termed “annotations”) are almost always needed
think attribute data!
3. A legend is necessary whenever symbols are used (which is almost always)
![Page 6: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/6.jpg)
CS 128/ES 228 - Lecture 8a 6
These elements are less standard
5. Credits should be used on all technical maps; I think all maps should be dated
6. North arrow, scale, (and graticle) depend on purpose
7. Borders and neat lines are visually helpful but can be omitted
![Page 7: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/7.jpg)
CS 128/ES 228 - Lecture 8a 7
Map layout
Lo & Yeung. 2002. Concepts & Techniques of GIS. P. 245
there’s more to a GIS output thanjust the map
• one of many possible maplayouts
![Page 8: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/8.jpg)
CS 128/ES 228 - Lecture 8a 8
Designing a map
1. Define your purpose & your audience
2. Make your map tell a story
3. Direct the viewer’s eye
4. Keep it simple
Source: Design a great map layout. Landtrustgis.volcano.onenw.org/Technology/advanced/design
![Page 9: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/9.jpg)
CS 128/ES 228 - Lecture 8a 9
1. Purpose & audience• We tend to think of GIS maps as data
displays, not means of communication
• Ask what you’re trying to show, why, and to whom
![Page 10: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/10.jpg)
CS 128/ES 228 - Lecture 8a 10
2. Tell a story• Take the viewer on a journey into the
map’s meaning
• The main point should be obvious at first glance; additional info. should unfold gradually
http://junkcharts.typepad.com/junk_charts/images/cdc_obesity_slides.gif
![Page 11: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/11.jpg)
CS 128/ES 228 - Lecture 8a 11
3. Direct the viewer’s eye• create an information hierarchy, using
symbol size, color, and placement
• use strongest colors for the most important features
![Page 12: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/12.jpg)
CS 128/ES 228 - Lecture 8a 12
4. Keep it simple
Both: Design a great map layout. Landtrustgis.volcano.onenw.org/Technology/advanced/design
![Page 13: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/13.jpg)
CS 128/ES 228 - Lecture 8a 13
Common design flaws
1. Minor elements dominate map visually
2. Same size/color for all labels
3. Choropleth scale not intuitive
4. Cluttered annotation
See also: Jerry’s top ten crime mapping tips(http://jratcliffe.net/papers/Jerry%27s%20top%20 ten%20mapping
%20tips.pdf)
![Page 14: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/14.jpg)
CS 128/ES 228 - Lecture 8a 14
1. Minor elements dominate• The color of the (main) figure should capture
the viewer’seye
http://www.mapsofworld.com/usa/washington-city-map.html
![Page 15: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/15.jpg)
CS 128/ES 228 - Lecture 8a 15
2. Same size/color labels• How much of an information hierarchy is
shown here?
• What are the mostimportant features?
• How might they beemphasized?
http://www.mapsofworld.com/usa/washington-city-map.html
![Page 16: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/16.jpg)
CS 128/ES 228 - Lecture 8a 16
3. Choropleth scale not intuitive
![Page 17: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/17.jpg)
CS 128/ES 228 - Lecture 8a 17
4. Cluttered annotation
![Page 18: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/18.jpg)
CS 128/ES 228 - Lecture 8a 18
What’s wrong here?
http://www.gisci.org/GISC_Eye/GISCEye_vol1no2.pdf
![Page 19: CS 128/ES 228 - Lecture 8a1 Map formats & layout Muehrcke & Muehrcke, 4 ed, p. 1](https://reader035.vdocument.in/reader035/viewer/2022062421/56649d805503460f94a63fd9/html5/thumbnails/19.jpg)
CS 128/ES 228 - Lecture 8a 19
And finally
… think creatively
Muhrcke & Muhrcke, 4th ed, p 155