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Hypsography Portrayal Type (HQC)

DGIF baseline 2026-1, the latest. Earlier baselines: timemap.

RDF: hqc.ttl

Name

hypsographyPortrayalType

Datatype

Enumeration

Definition

The type of a hypsographic portrayal line (for example: a contour line) based on the topography represented and/or portrayal interval.

Description

A contour line is an imaginary line on the ground connecting an infinite number of points of equal elevation. The vertical measurement between two contour lines is called the contour interval. Contour lines are numbered to indicate the elevation value of the contour line.

Accepted

2013-10-18

Defined by

DFDD

Values

• HQC_1 Index Contour
• HQC_12 Approximate Intermediate Contour
• HQC_13 Approximate Auxiliary Contour
• HQC_14 Quarter Auxiliary Contour
• HQC_15 Approximate Depression Index Contour
• HQC_16 Auxiliary Contour
• HQC_18 Approximate Depression Intermediate Contour
• HQC_19 Intermediate Carrying Contour
• HQC_2 Intermediate Contour
• HQC_20 Auxiliary Carrying Contour
• HQC_21 Index Carrying Contour
• HQC_22 Depression Auxiliary Contour
• HQC_23 Approximate Depression Auxiliary Contour
• HQC_3 Half Auxiliary Contour
• HQC_4 Form Line
• HQC_5 Depression Index Contour
• HQC_6 Depression Intermediate Contour
• HQC_7 Approximate Index Contour
• HQC_8 Mound Index Contour
• HQC_9 Mound Intermediate Contour
• HQC_98 Transition Line
• HQC_99 Connector Line

Used by

• CA010 Elevation Contour
• BE015 Depth Contour

Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.