To which problem?
The problem is that RTSpringLayoutStepping always uses all the elements in the view and ignores what you set to the layout. This is a problem, because it will try to also layout the anchor, but that will trigger the anchor to fix itself⦠and we get endless spinning. On Thu, Mar 10, 2016 at 4:21 PM, Johan Fabry <jfabry@dcc.uchile.cl> wrote:
On Mar 10, 2016, at 12:08, Alexandre Bergel <alexandre.bergel@me.com> wrote:
There is no other solution? Alex, do you have any idea?
To which problem?
Copy-paste from original mail:
anchor constraints: they do not play well with layouts and animations. Try the code below (adapted from the example to use the layout and animation of LRP ) and you will see that the circles keep spinning around, they never stop. I think it would be better for them to stop ;-)
| v lbls es e1 e2 a1 a2 layout stepping| v := RTView new. lbls := RTLabel new elementsOn: #(#First #Second). es := RTEllipse new size: 30; borderColor: Color black; elementsOn: #(#source #dest). v addAll: lbls; addAll: es. es @ RTDraggable. es @ RTLabeled. e1 := RTArrowedLine new withContinuousCircleAttachPoint; color: Color black; edgeFrom: es first to: es second. v add: e1. e2 := RTArrowedLine new withContinuousCircleAttachPoint; color: Color black; edgeFrom: es second to: es first. v add: e2. a1 := RTAnchorConstraint new. a1 anchorShape size: 10. a1 guideLine color: Color red. a1 element: lbls first; edge: e1; balance: 0.2; minDistance: 10; build. (a2 := RTAnchorConstraint new) element: lbls second; edge: e2; balance: 0.2; minDistance: 10; build. layout := RTForceBasedLayout new charge: -450; length: 100; doNotUseProgressBar; applyOn: es; yourself. layout initialLayout: RTSugiyamaLayout new. stepping := RTSpringLayoutStepping new view: v; layout: layout; afterBlock: [ v canvas camera focusOnCenter]. v addAnimation: stepping. ^ v
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Johan Fabry - http://pleiad.cl/~jfabry PLEIAD and RyCh labs - Computer Science Department (DCC) - University of Chile
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