August 2017
Beginner
298 pages
7h 4m
English
Content preview from JavaScript by Example
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Rendering text on the canvas
We have an image now, but we are still missing the top text and bottom text. Here are a few things we need as the text property:
- The font size should be responsive to the size of the image
- The text should be center-aligned
- The text should have margin space at the top and bottom of the image
- The text should have a black stroke so that it can be seen clearly over the image
For our first step, we need the font size to be responsive. If the user selects either a large image or a small one, we need to have a relative font size. Since we have the canvas height and width, we can use that to get a font size that is 4% of the average of the image height and width. We can center align the text using the textAlign property. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.