With Node.js you can add real-time capabilities to Drupal like instant messaging(chat), live update of views or feeds, etc. Here you will find a detailed tutorial on how to install Node.js integration module in localhost in Windows.
Converting an image to its digital negative is very easy using JavaScript. We can achieve it in three steps.
Unlike converting an image to grayscale where same values are used for all the color channels in a pixel, applying sepia tone is little different.
Understanding grayscale bitmap(digital) images:
We can do many things with an image drawn on canvas. We can invert the image colors, change the image to grayscale, remove red or green color from the image, etc. Every pixel of a digital image(bitmap or raster graphics like jpeg, png, gif, etc.) can be manipulated using the canvas api.
The <canvas> tag is mainly used to draw and manipulate graphics. But sometimes you may need to draw text in canvas. This text is not normal in the sense that it cannot be selected using mouse. It is like an image drawn on the canvas.
In this tutorial we will do two basic things:
Using Drupal's multisite feature you can easily run multiple sites using the same core codebase of drupal. Although the codebase is same, it is a good idea to have different databases for different sites inside the multisite environment.
If you are developing multiple sites locally, you might have organised your local sites in folders like
“C:\xampp\htdocs\mysite1”, “C:\xampp\htdocs\mysite2”, etc.
Before you start synchronizing your files between desktop, mobile devices, and hosted ownCloud server, you would like to try it in localhost. For this, you will need to download and install the ownCloud sync client.
