13.7. Panorama Projection

13.7.1. Overview

This filter converts a 360° x 180° image, also known as equirectangular image, into a panorama.

13.7.2. Activate the filter

This filter is found in the image window menu under Filters → Map → Panorama Projection….

13.7.3. Options

图 17.304. “Panorama Projection” filter options

These options are the same as 第 13.6 节 “Little Planet” options.

13.7.4. Key Modifiers

Click and drag to pan.

Shift + Click and drag to rotate.

Ctrl + Click and drag to pan with a constrained axis.

Alt + Click and drag to zoom.

13.7.5. Using Panorama Projection filter

	提示
	You can find free equirectangular images at https://commons.wikimedia.org/wiki/Category:360°_panoramas_with_equirectangular_projection.

Of course, you can get only a part of the original image in your panorama. The first thing you have to do is creating a new image with the size of your future panorama. Then, open the original image.

Parc_de_Belleville,_Paris_June_2007.jpg by Alexandre Duret-Lutz under CC by-sa 4.0

GIMP opened this 4000x2000 pixels original image in a 1000x500 px frame at zoom 12.5. This is a screenshot scaled to 400x200 px.

Open the Panorama Projection filter. Only the central part of the image is visible. Pan across the image to find your panorama using the Pan option or click and dragging. You can zoom in to have a wider view.

图 17.305. “Panorama Projection” filter applied

Pan = 0.00

Pan = 66.00