triadacre.blogg.se - Does open canvas 6 export pngs

#Does open canvas 6 export pngs how to#
#Does open canvas 6 export pngs install#

Note: I made the image 800px wide because we’re rendering it at 400px and it’ll still look crisp on higher DPR screens. We’re going to have to make a few logical changes here. How does it work html2canvas reads a webpage as a canvas image. This results in an HTML5 canvas element that can be used to create an image file or to generate a preview of the screenshot on the user’s screen. This is starting to look like something we can use! Adding a logo image Technically, html2canvas does not actually take a screenshot, rather it creates a view based on the data that is present on the page. `, 600, authorY) Ĭonst buffer = canvas.toBuffer("image/png") Add to that section a draw script that runs node draw.js. In your package.json file, you probably have a scripts section, which is a test script. For now, let’s use it to log a “hello world” message.

#Does open canvas 6 export pngs install#

npm install canvasĬreate a new file in the root of your project called draw.js. For this project, all we need is node-canvas. Once you have the basics in place, install your dependencies.

#Does open canvas 6 export pngs how to#

(If you know how to do that, great! If not, here’s a handy guide.) Drawing images with Canvas and Nodeįirst thing’s first: we’re going to start our new JavaScript project. And, links with images are more likely to get clicked by users. But for those who don’t already generate images, it makes your content look more polished when shared. If I could automate that process, I wouldn’t have to do any work and would still have a decent-looking image.įor me, or anyone already manually generating images, it’s a time-saver. It makes the experience more pleasant for readers perusing post lists, and it looks good when shared on social media.īut it takes quite a bit of time for me to find the right icon, choose a color I haven’t overused recently, export the image, and add it to my project. I manually generate meta images for each of the posts I write for my blog.

We want to include a logo at the top of the image.

The post has a title of varying length, and, if it’s too long, we’ll truncate it and indicate we’ve done so with ellipses (…).

Let’s take a look at how you can use Node.js to generate a meta image for some piece of content, like a blog post.

Creating and saving images with node-canvas Sean Davis Follow Tinkerer, teacher, sandwich-eater.