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PODelete 3D Element from ObservableCollection
 

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  1. PODelete 3D Element from ObservableCollection
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    <p>In my WPF 4.0 project, I have an ObservableCollection that contain some selected Visual3D from the view : </p> <pre><code>public ObservableCollection&lt;Visual3D&gt; SelectedElements { get { return _selectedElements; } set { if (Equals(_selectedElements, value)) { return; } _selectedElements = value; RaisePropertyChanged(() =&gt; SelectedElements); } } </code></pre> <p>Visual3D elements are selected by clicking and the source-code in the VM is : </p> <pre><code>public HitTestResultBehavior HitTestDown(HitTestResult result) { var resultMesh = result as RayMeshGeometry3DHitTestResult; if (resultMesh == null) return HitTestResultBehavior.Continue; // Obtain clicked ModelVisual3D. var vis = resultMesh.VisualHit as ModelVisual3D; if (vis != null) { Type visType = vis.GetType(); if (visType.Name == "TruncatedConeVisual3D" || visType.Name == "BoxVisual3D") { var geoModel = resultMesh.ModelHit as GeometryModel3D; if (geoModel != null) { var selecteMat = geoModel.Material as DiffuseMaterial; if (selecteMat != null) selecteMat.Brush.Opacity = selecteMat.Brush.Opacity &lt;= 0.7 ? 1 : 0.7; } // Otherwise it's a chair. Get the Transform3DGroup. var xformgrp = vis.Transform as Transform3DGroup; // This should not happen, but play it safe anyway. if (xformgrp == null) { return HitTestResultBehavior.Stop; } // Loop through the child tranforms. foreach (Transform3D t in xformgrp.Children) { // Find the TranslateTransform3D. var trans = t as TranslateTransform3D; if (trans != null) { // Define an animation for the transform. var anima = new DoubleAnimation(); if (trans.OffsetY == 0) { DependencyProperty prop = TranslateTransform3D.OffsetZProperty; if (Math.Abs(trans.OffsetZ) &lt; 2) { anima.To = 20.5*Math.Sign(trans.OffsetZ); Debug.Assert(SelectedElements != null, "SelectedElements != null"); } else { anima.To = 1*Math.Sign(trans.OffsetZ); SelectedElements.Add(vis); } // Start the animation and stop the hit-testing. trans.BeginAnimation(prop, anima); return HitTestResultBehavior.Stop; } } } } } return (HitTestResultBehavior) HitTestFilterBehavior.Continue; } </code></pre> <p>and I want to delete one or all this Visual3D element Thank you in advance </p> <p>I have implemented this methode but it's not work :</p> <pre><code>private void UnloadProduct() { if (CanUnload) { foreach (Visual3D selectedElement in SelectedElements) { if (selectedElement.DependencyObjectType.Name == "TruncatedConeVisual3D") { var test = (TruncatedConeVisual3D) selectedElement; int id = test.VisualId; ElementsCollection.RemoveAt(id); RaisePropertyChanged(() =&gt; ElementsCollection); } else { var test = (BoxVisual3D) selectedElement; int id = test.VisualId; ProductsCollection.RemoveAt(id); } } } } </code></pre>
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    1. PTQuestion
    1. USChimouRabane
    1. USChimouRabane
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    1. This table or related slice is empty.
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    1. COHave you tried anything yet?
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      1. PODelete 3D Element from ObservableCollection
      1. USKobunite
    2. COYes: i implemented a methode private void UnloadProduct() { if (CanUnload){ foreach(Visual3D selectedElement in SelectedElements) var elem = (TruncatedCodeVisual3D) selectedElement; int id = elem.VisualId;
      singulars
      1. PODelete 3D Element from ObservableCollection
      1. USChimouRabane
    3. CObut it doesn't work :(
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      1. PODelete 3D Element from ObservableCollection
      1. USChimouRabane
 

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