https://github.com/tito/projectionmapping

Kivy widget for grid-based projection mapping
https://github.com/tito/projectionmapping

Last synced: about 1 year ago
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Kivy widget for grid-based projection mapping

• Host: GitHub
• URL: https://github.com/tito/projectionmapping
• Owner: tito
• Created: 2019-04-04T08:59:28.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2019-04-04T13:31:38.000Z (over 7 years ago)
• Last Synced: 2025-04-23T13:44:15.771Z (over 1 year ago)
• Language: Python
• Size: 104 KB
• Stars: 11
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Projection Mapping

Kivy widget that reproject its content according to a calibration grid.

It includes a calibration tool accessible from F2.



Projection to a curved wall:

![projection_to_curved_wall](https://user-images.githubusercontent.com/37904/55559503-a3186180-56ee-11e9-8832-1b145110666f.png)

## Usage

```python

from kivy.app import App

from projectionmapping import ProjectionMapping

from kivy.uix.image import Image

class SimpleProjectionMapping(App):

    def build(self):

        self.root = ProjectionMapping(filename="calibration.json")

        self.root.add_widget(

            Image(source="projectionmapping/data/mirefullhd.jpg"))

```

## Keybinding

- F2: Toggle calibration

- space: Toggle help

- r: Reset the calibration grid

- s: Save the current calibration

- l: Load latest calibration

- x/c: Remove/add a column (current calibration is lost)

- v/b: Remove/add a row (current calibration is lost)

## Resources

- http://www.reedbeta.com/blog/quadrilateral-interpolation-part-2/

- http://iquilezles.org/www/articles/ibilinear/ibilinear.htm