https://github.com/jdhoek/inkscape-isometric-projection

Inkscape extension for converting objects to an isometric projection
https://github.com/jdhoek/inkscape-isometric-projection

inkscape-extension isometric svg

Last synced: 3 months ago
JSON representation

Inkscape extension for converting objects to an isometric projection

• Host: GitHub
• URL: https://github.com/jdhoek/inkscape-isometric-projection
• Owner: jdhoek
• License: gpl-3.0
• Created: 2016-03-28T15:39:59.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2023-10-04T06:38:14.000Z (over 1 year ago)
• Last Synced: 2024-08-02T05:16:56.106Z (6 months ago)
• Topics: inkscape-extension, isometric, svg
• Language: Python
• Homepage:
• Size: 563 KB
• Stars: 197
• Watchers: 16
• Forks: 20
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• Awesome-Daily - Isometric Projection

README

        
Inkscape extension: isometric projection converter

==================================================

*This version of the extension is for Inkscape `1.2` or newer. For older versions of

Inkscape, please use [v2.1](../../tree/v2.1) (for Inkscape `1.0.*` and `1.1.*`), or

[v1.2](../../tree/v1.2) (for Inkscape versions before `1.0`).*

This [Inkscape](https://inkscape.org) extension transforms objects drawn on a

two-dimensional plane to an isometric or dimetric projection.

Inkscape provides an [axonometric

grid](https://en.wikipedia.org/wiki/Axonometric_projection) that by default is

configured for the [isometric

projection](https://en.wikipedia.org/wiki/Isometric_projection) (i.e., the

three axes are set at 120° angles). Drawing with this grid works quite well for

simple shapes, but sometimes it is easier to draw the details of an object

using a two-dimensional grid, and then scale, shear, and rotate the object to

set it on an isometric plane.

This extension conveniently automates these transformations.

![Example created with this extension](doc/example.png)

In addition to the isometric projection (a dimetric projection where both angles are 30°), the

extension supports arbitrary angles as well (here the angles are set to 15°). 

![A dimetric projection example](doc/dimetric.png)

This example shows a trimetric projection with two different angles for the left and right hand sides.

![A trimetric projection example](doc/trimetric.png)

## Installation

Copy `isometric_projection.inx`, `dimetric_projection.inx`, and `axonometric_projection.py` to your

Inkscape extensions directory, listed at `Edit » Preferences » System: User extensions`.  After a

restart of Inkscape, the new extension will be available.

## Usage

The extension can now be found in the **Extensions** menu under `Axonometric

Projection`. To convert a flat two-dimensional object

to one of the three visible isometric planes (i.e., top, left-hand side, and

right-hand side), select the object, and perform select the desired conversion

via the `Isometric Projection…` entry from that submenu.

![Extension settings (isometric)](doc/dialog.png)

To perform the opposite action (i.e., convert from one of the isometric sides

to a flat two-dimensional object) select the appropiate isometric side, and

enable the *Reverse transformation* option.

For dimetric projections using an angle other than 30°, use `Axonometric Projection » Dimetric

Projection…`, and set the angle to an appropriate value.

![Extension settings (dimetric)](doc/dimetric-dialog.png)

For trimetric projections using different angles for the left and right hand sides, use 

`Axonometric Projection » Trimetric Projection…`, and set both angles to appropriate values.

## Further reading

More information about the transformations and maths used by this extension can 

be found in this 

[write-up](http://jeroenhoek.nl/articles/svg-and-isometric-projection.html).