The output image of Tecplot sometimes has two black lines on the border. Many people's solution is to take a screenshot. In fact, there is a one-and-done method, which is to modify the tecplot.cfg file. This file is under the tecplot installation path, and it is generally in /usr/local/tecplotxxx in ubuntu. Add two lines at the end of this file:
$!Interface OpenGLConfig {ScreenRendering {AdjustRectangleRightAndBottom = yes}}
$!Interface OpenGLConfig {ImageRendering {AdjustRectangleRightAndBottom = yes}}
That should solve the problem. The Tecplot2017 version and below are available for personal testing, and other versions have not been tested. If possible, please come back to the comment area to talk about it.
Before adding the modification
After adding two lines of text
