Hi, addChild: expects a BlElement not a canvas. A BlElement draws on a canvas object that is passed to it. SpartaCanvas is an abstract class. If you want to instantiate a canvas, pick one of the subclasses. For example, for MozCanvas, see MozExamples. Cheers, Tudor

On Feb 25, 2019, at 4:55 PM, David Richards <david.i.richards.iii@gmail.com> wrote:

| canvas space node text |

. BlUniverse reset

. space := BlSpace new . space show . space title: 'Test Space' . space extent: 800@400 . space root background: Color lightBlue . space position: 1@25

. canvas := BlSpartaMozCanvasBuilder extent: 400@250

. space root addChild: canvas

This fails.

Any ideas how to create a Sparta Canvas, to draw some text on?

-- www.feenk.com "There are no old things, there are only old ways of looking at them."