Rendering text in regular HTML is easy, rendering text in an HTML5 Canvas is a little more involved but the effects that can be applied to text is greater than that of plain HTML and CSS. Here we show how to render some basic text using a variety of fonts, colors and font weights.
Firstly we set the font property, this property can contain the font name and size as well as the font weight, here we set it to Arial, 30px in size. The fillStyle controls how the text is painted onto the canvas, here we set it to a solid Red.
Finally we call the fillText method that does that actual text rendering, this method takes the text string to draw and the x and y position from the top-left of the canvas.
So far we could have displayed the above text using standard HTML and CSS, however when using the Canvas to draw text you have a whole lot more possibilities, one of these is the ability to apply gradients to text:
Here we create a vertical gradient that flows from dark Red to bright Red. For more details on using gradients and fill styles please see the Shapes and Fill Styles tutorial.
A common requirement when dealing with text is to be able to measure how many pixels a block of text occupies. For this we can use the measureText() method that can be found on the graphics context:
This method returns a size object which contains the text dimensions.
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