Course Summary
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![]() Abstract/Simplify |
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![]() "Assume a sphere…" |
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![]() Project onto 2 Dimensions |
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D A T A![]() |
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V E C T O R D A T A | ||
SHP file(s) | ![]() |
Read directly |
Multiple other formats geojson, KML, GML, GPX, etc. |
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Can be read by QGIS |
Text or spreadsheet with join field |
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Read CSV as vector Layer>Properties>Join Change field data types as needed OR use CSVT file |
Text or spreadsheet with long/lat fields |
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Import as points |
R A S T E R D A T A | ||
BTW: jpeg, tif, gif, png | ||
aerial/satellite photos printed maps |
remote sensing images (pixels have data values) or generated from interpolation (e.g., heat maps) |
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georeferencing digitizing |
raster calculations raster processing |
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I N S I D E T H E G I S | ||
cartography graphic design |
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symbolization simplification visual variables crap |
thematic mapping | ![]() |
equal intervals quantiles standard deviation pretty |
geo-processing | ![]() |
convex hull union/intersection difference buffer |
analysis | ![]() |
e.g., count points in polygons spatial joins |
layout | ![]() |
Fully self documented maps |
W E B M A P P I N G | ||
OSM | ||
FieldPapers | ||
Leaflet | javascript |