Tutorials with Creative Demos
How Cordova app uploads a Canvas image via Ajax will be presented here. We create a signature image data by HTML DOM TouchEvent on the Canvas element. The canvas data can be sent to the server and saved. Behind the topics, there are two essential limits that should be fixed for Cordova upload through Ajax. … Read more
You can sign a signature on HTML5 Canvas by moving mouses. Listening to 3 mouse events, we discover a straight-forward and event-driven approach to do it. Furthermore, you can save your signature as an image file. All codes here are not complicated, so you can easily understand even though you are still students in school. … Read more
This article offers a complete approach of building a HTML bar chart using JavaScript canvas. In 7 steps, you can customize your bar chart with designed bar colors and the legend to distinguish them. More than one series of data can be set in the chart. Essentially, the JS object is truly in clear codes … Read more
We are proposing an elegant approach to draw HTML5 Canvas line chart. Each line illustrates the distribution of one series of data, and we allow multiple series to be sketched. This article divides the drawing procedure into 7 steps for which several sections explain the principle and usage. All codes here are not complicated, so … Read more