[Moose-dev] Re: [Mondrian] Where can we set the canvas to draw elements?

In the Rome examples, we create a Canvas on a 'Form' (and it's on this Form that the drawing will be visible). In all RomeExample, the form on which we display is 'Display' (the class representing the display screen), but we can choose any other kind of Form. So basically , if you want to use a RomeCairoCanvas, you do: |canvas| canvas := RomeCairoCanvas on: Display (or any other kind of Form). canvas drawRectangle: ... .... canvas finish (=> to make the changes visible) Then if you choose to display on a basic Form, I guess you can integrate this Form to a Morph (?).

2010/6/15 Alexandre Bergel <alexandre.bergel(a)inria.fr> one proposed by jannik a while ago Yes, I will work on it. I have to identify where the slowness comes from, from Mondrian or package blueprint. Alexandre is difficult to find where problems are by looking at a very complex case. When the problems were raised, we did look into the issues, but it was just too difficult especially when we had multiple problems in the same time. multiple problems, there are some fixes, but there are still problems left. So, we have to dig deeper and we should do it more systematically by creating simpler cases that reproduce the problem. It's not an issue of "I told you so", it's an issue of "We need help to identify all problems" :). him that he did not want to help. blocks, you can easily get to quadratic algorithms. each]) size]. again, so N^2. complex graphs. And those people that have a direct interest in getting Mondrian fast would be good to help in this direction, because it can get difficult to understand the particularities of each model :) for us: DSM, package blueprint, torch are all slow. found. Like not computing all the blocks all over the time. not clear what exactly generates the slowness. I believe the problem comes from the edges, but we have to take a more systematic look. computes everything lazily, so even if the visualization appears, scrolling might still be problematic the first time you go through the entire picture. So, testing should also take this into account. in MOBrowser and MOEasel, which in their turn create a StandardWindow that holds the MOCanvas. adding the Athens canvas (which provides an abstraction over Cairo, Balloon and possibly others) behind Mondrian. canvas to use in Mondrian, but I didn't find. there is no references to FormCanvas in mondrian classes. the class Form for example, so maybe such a method is use somewhere in the code. at them." _______________________________________________ Moose-dev mailing list Moose-dev(a)iam.unibe.ch https://www.iam.unibe.ch/mailman/listinfo/moose-dev _______________________________________________ Moose-dev mailing list Moose-dev(a)iam.unibe.ch https://www.iam.unibe.ch/mailman/listinfo/moose-dev