Cartography, Map Production and GeoVisualization Geog 176B Lecture 10: Longley Chapters 12,13

Visual Variables: Bertin QuantitativeQualitative

Map Types: Point Data Reference Topographic Dot Picture Symbol Graduated Symbol Multivariate symbol

Reference & Topo Map

Simple Dot Map

Picture Symbols/Icon Map

Graduated Symbol Source: Dent

Multivariate Symbol: Chernoff Faces Source: Eugene Turner, Dan Dorling

Map Types: Line Data Network Flow Isopleth Reference

Network Maps

Flow Map: Europe Internet Traffic

Isoline (isobar)

Map Types: Area Data Choropleth Dasymetric Area qualitative Stepped surface Hypsometric Reference

Area Qualitative Map

Stepped Surface

Hypsometric

Choropleth Mapping

Fields and Regions

2D Web Cartography HTML embeds PNG, JPEG and GIF Animation possible with GIF Drawing extensions with SVG (XML) Otherwise, need JAVA or FLASH GIS data can be web enabled with on-line products such as Arc/IMS and GeoMedia Web Map, MapInfo Envinsa Map open source tools

Map Types: Volume Data [Isopleth, Stepped Surface, Hypsometric] Gridded fishnet Realistic perspective Hill-shaded Image map

2.5D Methods

Hill shading

DOQ/Vector integration

Oakland: Integration of Hi-Res Imagery

2.75D Anaglyphic stereo

Map Types: Time Multiple views Animation –Moving map –Fly thru –Fly by

Animations

3D Web Cartography Unload interaction functions to web client Build and make visible 3D models VRML established as 3D web equivalent of HTML GeoVRML is geographically enabled VRML GML, X3D now available

(Geo)VRML Public domain Web tools (CosmoCreate and Player) Works for both immersive and passive displays Symbolization at feature level, any dimension object Integrated environment to develop, test and distribute cartographic methods Combine traditional cartographic portrayal techniques, animation, and 3-dimensional display Importance of nodes and georeferencing Worlds (GeoVRML 1.0) Incorporates visual field depth via proximity sensor and zoom

CosmoWorlds VRML Authoring Package

VRML Object modeling

VRML: Worlds

World plus texture

Dibiase: Public/Private

EDA/Scientific Visualization

Professional map publishing

Avenza, ArcPress etc.