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# How to save high resolution images in Pymol using command line?

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Previously, we have provided a tutorial on saving good-quality images using Pymol GUI. In this article, we are going to save high-resolution images using the Pymol commands.

Open Pymol by typing Pymol in a terminal or by double-clicking the shortcut or by launching the Pymol app. Now follow the steps explained below.

### Opening an input file

Go to File --> Open --> Select an input PDB file.

### Setting display

You can set some parameters such as background color, view, and so on. Details are provided in the previous article.

### Saving image

You can also ‘draw‘ an image but the resolution will not be high. Therefore, we will use the ‘ray‘ command. But if you want to draw an image anyway then use the following command.

> draw 1600

1600 is the dimension of image, you can set it to any number.

#### Saving image with transparent background

> set ray_opaque_background, 0

> ray

> png /path/to/folder/ex.png, dpi=1000

> png /home/user/Downloads/ex.png, dpi=1000

If you are saving on Windows, then remember to use ‘\’ as shown below

> png path\to\folder\ex.png, dpi=1000

#### Saving image with background color

You can set the background color either by GUI (go to Display –> Background –> White) or by using the following command.

> bg_color white

Define any color in place of ‘white’ in the above command.

Now, let’s save the image with background color.

> set ray_opaque_background, 1

> ray

> png /path/to/folder/ex.png, dpi=1000

#### References

1. The PyMOL Molecular Graphics System, Version 1.2r3pre, Schrödinger, LLC.

Tariq is founder of Bioinformatics Review and CEO at IQL Technologies. His areas of expertise include algorithm design, phylogenetics, MicroArray, Plant Systematics, and genome data analysis. If you have questions, reach out to him via his homepage.

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# How to take snapshots of structure at specific times in GROMACS?

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It is important to see the behavior of protein during an MD simulation. This can be achieved by taking snapshots in the form of PDB format. In this article, we have provided a few commands that you can use to take snapshots of a complete system or protein during MD simulation. (more…)

# [Tutorial] How to install Autodock Vina on Mac OS?

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We have provided several articles on Vina [1] installation on Ubuntu including the video tutorials. In this article, we are going to install Autodock Vina on Mac OS. (more…)

# GENPPI- Tool to create protein interaction networks from genomes.

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A new software called GENPPI [1] is developed to create protein interaction networks from genomes. (more…)