Intro GIS

Terminology

• drawing
• layer
• shapefile
• vertex
• coordinate
• branch / piece / part / hole / island
• attributes
• table
• image
• raster
• polygon
• line
• point
• object
• feature
• coverage

Drawings

• objects, attributes, tables
• object selection, attribute selection
• multi-part objects, holes/islands
• editing vertices

Shapefile: ball and chain of GIS

• write wrld_simpl from R
• only points/lines/polygons
• smash headers
• multiple files

QGIS - similar concepts

• project with layers, created from data sources
• layers - Maps!
• intersection

Images

• get example ocean colour image

• manually georeference

• create a map with wrld_simpl

• explore some projections