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Lesson Navigation IconThematic Cartography

Unit Navigation IconIntroduction to thematic cartography

Unit Navigation IconDesign of thematic maps

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

Unit Navigation IconTransformation of statistical data into thematic maps

LO Navigation IconData processing

LO Navigation IconData analysis

LO Navigation IconContinuous depiction of quantities

LO Navigation IconDepiction of intervals

LO Navigation IconDepiction of datasets

LO Navigation IconSummary

LO Navigation IconSelf Assessment

Unit Navigation IconMapping techniques for thematic maps

Unit Navigation IconSelf Assessment

Unit Navigation IconRecommended Reading

Unit Navigation IconGlossary

Unit Navigation IconBibliography

Unit Navigation IconMetadata

GITTA/CartouCHe news:

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Continuous depiction of quantities

If an attribute is given as attribute values, a continuous (or steady) depiction of values can be used. This method can be either strictly proportional to the area of the signature or can be designed continuously in a more arbitrary way.

Source: Source: (Arnberger 1993)

In general, a proportional continuous depiction should be aimed for. This may, however, lead to cluttered maps. This is particularly the case if the values are diverging heavily, which cause extreme values to be represented as symbols whose size would occlude the map too much or which would not be visible anymore. In such cases, the arbitrary continuous depiction should be chosen. It has to be taken care of, however, that extreme values can still be identified as such. For very small values, non-proportional minimal signatures can be used.

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