PDF Version of this document Search Help Glossary

Lesson Navigation IconThematic Cartography

Unit Navigation IconIntroduction to thematic cartography

Unit Navigation IconDesign of thematic maps

LO Navigation IconBasic principles

LO Navigation IconBuilding blocks of a thematic map

LO Navigation IconThematic content

LO Navigation IconBase map

LO Navigation IconSummary

Unit Navigation IconPreliminary decisions and questions for the creation of a thematic map

Unit Navigation IconTransformation of statistical data into thematic maps

Unit Navigation IconMapping techniques for thematic maps

LO Navigation IconThematic map using point symbols

LO Navigation IconNetwork maps

LO Navigation IconArea-class maps

LO Navigation IconChoroplethic maps

LO Navigation IconDiagram maps (cartograms referring to a specific point or area)

LO Navigation IconLine and vector related diagram maps

LO Navigation IconIsoline maps

LO Navigation IconDot maps

LO Navigation IconSummary

LO Navigation IconSelf Assessment

Unit Navigation IconSelf Assessment

Unit Navigation IconRecommended Reading

Unit Navigation IconGlossary

Unit Navigation IconBibliography

Unit Navigation IconMetadata

GITTA/CartouCHe news:

Go to previous page Go to next page

Area-class maps


Area-class maps depict phenomena or objects which are extensively distributed. Imhof (1972, p. 115) distinguishes three types:

Truly areal areas
e.g. rocks, waters, glaciated areas, forest areas and areas of arable lands, etc.
(Spiess 2004)

Fictitious areas
e.g. areas with political or legal properties, areas of influence, etc.
(Spiess 2004)

Areas as a form of generalisation of scattered and isolated single objects
e.g. limits of human occurrence, occurrence of animals, plants, diseases, etc.
(Spiess 2004)

Area patterns

Several graphical display elements can be used for the distinction of areas of different characteristics. The possibilities for variation depend on the chosen pattern type. The most common patterns are dot grids, scattered figures, line screens and fill colours.

The following table shows an overview of the possible display elements and their variation possibilities.

Conceptual differences of individual areas are mostly represented by varying their brightness. Thereby, darker colours indicate higher importance and lighter colours lower importance. If there are no differences in the importance, big differences in brightness should be avoided.

According to the form of the area patterns the items presented in the following interaction should be respected.

Top Go to previous page Go to next page