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How can I hide the positive contour labels covering the green area and only display the negative contour labels over the ocean areas? I am using QGIS 2.18.2. The contour file is a separate layer and when I enable labels I cannot hide the positive contours. Refer to the image below.

Contours showing up on land area

mgri
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ChrisW
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    See the answers to this question: https://gis.stackexchange.com/questions/121585/qgis-choose-contour-line-labels/121591#121591 – Dan C May 26 '17 at 13:57

1 Answers1

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You can use the if statement to only show values which are negative, something like the following:

if("fieldName" < 0, "fieldName", '')

Example

Example:

  • Before using if statement (blue = positive contours; red = negative contours):

    Before statement

  • After using if statement:

    After statement

Joseph
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