Cette page https://primaire.forge.apps.education.fr/ a pour but de proposer des ressources de la Forge utiles aux enseignants du premier degré.

Portail premier degré / Portail primaire · GitLab

inform@lire – 5 décembre – portailecole

Abc-Map est un logiciel de cartographie en ligne, simple à comprendre et à utiliser.

Avec Abc-Map vous pouvez créer:

• Des itinéraires de balades ou de randonnées
• Des cartes routières, des cartes touristiques, des itinéraires événementiels, ...
• Des cartes pour activités professionnelles : places de marchés, zones de travail, ...
• Des cartes statistiques : densité de population par régions, budgets par communes, ...
• Et plus !

Earlier this year we’ve been asked to help redesign the website of lowtechmagazine.com. The primary goal of the redesign was to radically reduce the energy use associated with accessing their web content. At the same time it is an attempt to find out what a low-tech website could be.

In general the idea behind lowtechmagazine.com is to understand technologies and techniques of the past and combine them with the knowledge of today. Not in order to be able to ‘do more with the same’, but rather ‘to do the same with less’.

What is Dithering?

Dithering is a method for trying to make an image look good while reducing the number of colors it uses, or as wikipedia puts it:

Dithering is used in computer graphics to create the illusion of "color depth" in images with a limited color palette - a technique also known as color quantization. In a dithered image, colors that are not available in the palette are approximated by a diffusion of colored pixels from within the available palette. The human eye perceives the diffusion as a mixture of the colors within it (see color vision). Dithered images, particularly those with relatively few colors, can often be distinguished by a characteristic graininess or speckled appearance.

For more information, see this list of dithering resources from around the web: explainers, algorithms, examples, etc.

About this site

Dither it! is built by Alex Harris.

It was inspired by a blog post from Low-tech Magazine about how to reduce the energy usage associated with running websites. One method discussed was to reduce full color images to dithered images with very few colors and subsequently smaller file sizes. Ensuing discussion clarified that there are other, more modern ways to compress images (try Squoosh) which achieve reduced file sizes while maintaining color. Nonetheless, dithering is a fun technique that looks cool and is interesting to learn about.

The Dither it! source code is freely available on the Dither it! Github page. Please feel free to contribute, share or pilfer.

Thanks to Leon Sorokin, for making RgbQuant.js and Don for making vue-color.

Image slider for examples: Img Comparison Slider

Le transport aérien est l’un des secteurs les plus pointés du doigt en raison de son impact environnemental. Mais alors que les émissions de gaz à effet de serre liées au numérique explosent, celles-ci deviennent une excuse pour ne pas se préoccuper de l’aviation, qui serait plus vertueuse en comparaison. Un amalgame fallacieux.

Générateur de fonds de carte

AtelierCartographie/graticule Générateur de fonds de carte

Les fonctionnalités classiques de cartographie thématique couplées à des méthodes innovantes (symboles proportionnels, cartes choroplèthes, cartes des discontinuités, cartes lissées, carroyages, anamorphose, etc.).

Our new website is designed to radically reduce the energy use associated with accessing our content.

Low-tech Magazine was born in 2007 and has seen minimal changes ever since. Because a website redesign was long overdue — and because we try to practice what we preach — we decided to build a low-tech, self-hosted, and solar-powered version of Low-tech Magazine. The new blog is designed to radically reduce the energy use associated with accessing our content.

Change the world! Not really, but you can create a custom map for your school/uni project, your work presentation, your next blog post, or your social media account. Check out the showcase to see some examples of data visualized with MapChart!

Créer simplement des cartes thématiques en 3 étapes

Géoréférencement automatique

Les noms de pays, les codes ISO ou les coordonnées associés à vos données sont reconnus automatiquement.

Projections paramétrables

Dites adieu à Mercator et changez de projection à tous moments. Montrez le monde qui correspond à vos données.

Visualisations

Huit formes de visualisations paramétrables et combinables à l'envi.

Fonds de carte

Plusieurs fonds de cartes à disposition avec différents découpages géographiques.

If you’ve been running your own personal website or a blog for a while, you are likely familiar with the og:image and twitter:image meta tags that let you specify an image that will be shown when you or someone else shares a link to your site or an article on social media.

Did you also know that there are accompanying meta tags that let you provide alt text for this image?

That would be og:image:alt and twitter:image:alt.