Contour lines - PIX4Dsurvey


Pix4Dsurvey distant outlier filter icon

Outlier Filter

Pix4Dsurvey terrain filter feature icon

Terrain filter

Pix4Dsurvey grid of points feature icon

Grid of points

Pix4Dsurvey TIN feature icon



Contour lines

The Contour lines feature connects points of the same height with a polyline. The height values are extracted from the TIN (Triangular Irregular Network). Major and minor contour lines which are projected also onto the images are generated with this feature.

  • Click Process Pix4Dsurvey process icon or,
  • On the Menu bar, click Process > Contour lines.
Note: To generate contour lines the TIN needs to be generated in the project.

The following setting can be adjusted:

  • Interval [units]: It defines the contour line elevation interval. It can be in meters or in imperial according to the coordinate system used:
    • 1 m - default.
    • 3 ft(US) - default.
  • Discard contour loops shorter than [units]: It detects and discards contour lines with shorter length. It can be in meters or in imperial according to the coordinate system used:
    • 10 m - default.
    • 30 ft(US) - default.
Example: Contour lines generated from terrain points of the PIX4Dsurvey example dataset.


Major and minor contour lines (1m interval) displayed in the 3D view of PIX4Dsurvey. Contour loops shorter than 10m are discarded.

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