Follow Techotopia on Twitter

On-line Guides
All Guides
eBook Store
iOS / Android
Linux for Beginners
Office Productivity
Linux Installation
Linux Security
Linux Utilities
Linux Virtualization
Linux Kernel
System/Network Admin
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Mail Systems
Eclipse Documentation

How To Guides
General System Admin
Linux Security
Linux Filesystems
Web Servers
Graphics & Desktop
PC Hardware
Problem Solutions
Privacy Policy




4.12.  Polar Coords

4.12.1.  Overview

Figure 16.62.  Example for Polar Coords filter

Example for Polar Coords filter

Original image

Example for Polar Coords filter

Polar Coords” filter applied

It gives a circular or a rectangular representation of your image with all the possible intermediates between both.

4.12.2.  Activate the filter

You can find this filter through FiltersDistortsPolar Coords.

4.12.3.  Options

Figure 16.63.  Polar Coords” filter options

Polar Coords filter options


The result of your settings will appear in the Preview without affecting the image until you click on OK.

Circle Depth in Percent

Slider and input box allow you to set the "circularity" of the transformation, from rectangle (0%) to circle (100%).

Offset Angle

This option controls the angle the drawing will start from (0 - 359°), and so turns it around the circle center.

Map Backwards

When this option is checked, the drawing will start from the right instead of the left.

Map from Top

If unchecked, the mapping will put the bottom row in the middle and the top row on the outside. If checked, it will be the opposite.

To Polar

If unchecked, the image will be circularly mapped into a rectangle (odd effect). If checked, the image will be mapped into a circle.

4.12.4.  Examples

Figure 16.64.  With text

With text

If you have just written the text, you must Flatten the image before using the filter.

Figure 16.65.  With two horizontal bars

With two horizontal bars

  Published under the terms of the GNU General Public License Design by Interspire