Geovisualization

Question 1

• Builds on the established tenets of map production and display
• Refers to the creation and use of visual representations to facilitate thinking, understanding, and knowledge construction about human and physical environments, at geographic scales of measurement

Answer 1

Geovisualization

Question 2

What are the 4 principal objectives of geovisualization

Answer 2

1. Exploration
2. Synthesis
3. Presentation
4. Analysis

Question 3

• Process of selecting features based on their geographic relationship, or spatial relationship, to other features
• Process of retrieving a data subset from a map layer by working directly with map features

Answer 3

Spatial Query

Question 4

Although most computer interfaces can run software that enables spatial query, the greatest volume is made through __________ and other handheld devices

Answer 4

smartphones

Question 5

• In cartographic sense, it is the taking of once vector space (the real, or observable world) and transforming it into another (geovisualization)
• Geovisualization techniques make it possible to manipulate the shape and form of mapped boundaries using GI systems

Answer 5

Transformation

Question 6

• Are map transformations that lack planimetric correctness and distort area or distance in the interests of some specific objective
• Reveal patterns that might not be readily apparent from a conventional map, or, more generally, to promote legibility

Answer 6

Cartograms

Question 7

Three types of Cartograms

Answer 7

1. Density-Equalizing Cartograms
2. Non-Contiguous Cartograms
3. Dorling Cartograms

Question 8

• A technique in thematic mapping where a choropleth map is refined by incorporating additional geographic information
• The intersection of two datasets is used to suggest more precise estimates of a spatial distribution

Answer 8

Dasymetric Mapping