Drawing a graph on a pre-existing canvas

• April 5, 2015 at 1:25 am #8538
  
  Yacob14

  Hello,

  I was wondering if was possible to draw a graph on a pre-existing canvas. From the docs I’ve seen, you’re not required to specify a canvas element beforehand. I’m making an application that runs a simulation on canvas and then shows the results, and I would prefer to have those results appear in the same area.

  April 6, 2015 at 7:51 pm #8552
  
  Sunil Urs

  Yacob,

  As of now it requires a div element inside which the chart is rendered. This is because chart includes various other DOM elements like menu button, etc.

  I would suggest rendering chart inside a hidden div element and then copying the content of chart into your canvas using drawImage method.

  —
  Sunil Urs