[Qgis-user] Colourising contour lines

[Brent Wood]

Hi Grant,

I'm not sure I understand your question, or at least the context in detail.

This depends on how the grid colours are defined in QGIS.

If the grid is of elevation data,  pixel values are elevations (heights/depths) then to get colours applied you must be applying a colour map to the grid which assigns different colours to different elevation values. Applying the same colour map to your vector contours should give the same colours assigned to the same values in the grid.

If you are not already aware of it, QGIS can import colour maps from cpt-city & colour brewer, both of which have a very wide range of predefined colour maps.
Choose "Create new color ramp" in the QGIS layer Symbology->color ramp  properties.


Brent Wood

Principal Technician, Fisheries
NIWA
DDI:  +64 (4) 3860529
________________________________
From: QGIS-User <qgis-user-bounces at lists.osgeo.org> on behalf of Grant Boxer via QGIS-User <qgis-user at lists.osgeo.org>
Sent: Sunday, August 3, 2025 15:35
To: qgis-user at lists.osgeo.org <qgis-user at lists.osgeo.org>
Subject: [Qgis-user] Colourising contour lines


I would like to apply colours to vector contour lines that would be derived from a coloured grid of the same data. Anyone have any thoughts on how this is best done?

Cheers Grant



Brent Wood
Principal Technician - GIS and Spatial Data Management
Programme Leader - Environmental Information Delivery
+64-4-386-0529
301 Evans Bay Parade Hataitai Wellington New Zealand
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