<![CDATA[Dynamically Construct Path and PathLines]]>Hi,
I'm trying to extend my code to refactor QtQuick 1.1 qml using a repeater or timer onTriggered JS. My ugly code (working), with 24 PathLine elements,
Item {
property Path myPath: Path {
PathLine {x: 0; y: 0}
PathLine {x: 1; y: 0}
PathLine {x: 2; y: 0}
...
PathLine {x: 23; y: 0}
}
}

I've tried variations on Repeater/Model.... without success. Usually QT returns 'can't assign object to list'.

Is there a way through code to initialize the Path with 'n' number of PathLines. Any help would be most appreciated.
Thank you

]]>https://forum.qt.io/topic/146022/dynamically-construct-path-and-pathlinesRSS for NodeFri, 06 Nov 2026 09:43:22 GMTMon, 26 Jun 2023 21:57:40 GMT60<![CDATA[Reply to Dynamically Construct Path and PathLines on Thu, 29 Jun 2023 22:02:16 GMT]]>I have the Path and PathLine working with the above initial declaration of Path and Pathline. What I've been trying to do is either user a timer OnTriggered to create the Path and append/push... pathElements, or, use a Repeater to create the path. Variations on things I've tried below.

a) Timer OnTriggered,

var pathLine = Qt.createQmlObject('import QtQuick 1.1;PathLine {x:0; y:0}',_myPath)
  if(_myPath.pathElements.length == 0) {
        for(var j=0;j<24;j++) {
        _myPath.pathElements.push({"x":j,"y":0})
       }
     }

b) Repeater,

Repeater{
  	id: repeater
  	model: myModel
  		delegate: Item{
  			property ShapePath s: ShapePath{					
  			strokeWidth: 2
      PathLine{x: model.x; y: model.y}
  			}
  			Component.onCompleted: {
  				shape.data.push(s)
  			}
  		}
  	}		
  }

My line chart is 48 segments and is fine for what I'm trying to do. The code is not very elegant, but works. Thanks

]]>https://forum.qt.io/post/763094https://forum.qt.io/post/763094Thu, 29 Jun 2023 22:02:16 GMT<![CDATA[Reply to Dynamically Construct Path and PathLines on Tue, 27 Jun 2023 20:51:59 GMT]]>@dmac001 Use PathPolyLine and just give it a list of points.

https://doc.qt.io/qt-6/qml-qtquick-pathpolyline.html

]]>https://forum.qt.io/post/762798https://forum.qt.io/post/762798Tue, 27 Jun 2023 20:51:59 GMT<![CDATA[Reply to Dynamically Construct Path and PathLines on Tue, 27 Jun 2023 10:24:16 GMT]]>@dmac001 I haven't any experience with this, but from looking at the docs, it looks like you could programmatically assign to the pathElements property. I don't think Path supports a model-based instantiation of its children.

]]>https://forum.qt.io/post/762734https://forum.qt.io/post/762734Tue, 27 Jun 2023 10:24:16 GMT