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#rb none #rnx #jira none #preflight 60c52c5db9446100014da02d [CL 16653115 by Ryan Schmidt in ue5-main branch]
74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "MeshBoundaryToolBase.h"
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#include "BaseBehaviors/SingleClickBehavior.h"
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#include "BaseBehaviors/MouseHoverBehavior.h"
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#include "DynamicMesh/DynamicMesh3.h"
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#include "InteractiveToolManager.h"
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#include "MeshDescriptionToDynamicMesh.h"
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#include "Selection/PolygonSelectionMechanic.h"
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#include "TargetInterfaces/MeshDescriptionProvider.h"
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#include "TargetInterfaces/PrimitiveComponentBackedTarget.h"
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#include "ExplicitUseGeometryMathTypes.h" // using UE::Geometry::(math types)
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using namespace UE::Geometry;
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#define LOCTEXT_NAMESPACE "UMeshBoundaryToolBase"
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void UMeshBoundaryToolBase::Setup()
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{
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USingleSelectionTool::Setup();
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if (!Target)
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{
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return;
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}
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// create mesh to operate on
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OriginalMesh = MakeShared<FDynamicMesh3, ESPMode::ThreadSafe>();
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FMeshDescriptionToDynamicMesh Converter;
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Converter.Convert(Cast<IMeshDescriptionProvider>(Target)->GetMeshDescription(), *OriginalMesh);
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// initialize hit query
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MeshSpatial.SetMesh(OriginalMesh.Get());
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// initialize topology
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Topology = MakeUnique<FBasicTopology>(OriginalMesh.Get(), false);
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bool bTopologyOK = Topology->RebuildTopology();
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// Set up selection mechanic to find and select edges
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SelectionMechanic = NewObject<UPolygonSelectionMechanic>(this);
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SelectionMechanic->bAddSelectionFilterPropertiesToParentTool = false;
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SelectionMechanic->Setup(this);
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SelectionMechanic->Properties->bSelectEdges = true;
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SelectionMechanic->Properties->bSelectFaces = false;
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SelectionMechanic->Properties->bSelectVertices = false;
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SelectionMechanic->Initialize(OriginalMesh.Get(),
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Cast<IPrimitiveComponentBackedTarget>(Target)->GetWorldTransform(),
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TargetWorld,
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Topology.Get(),
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[this]() { return &MeshSpatial; }
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);
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SelectionMechanic->OnSelectionChanged.AddUObject(this, &UMeshBoundaryToolBase::OnSelectionChanged);
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}
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void UMeshBoundaryToolBase::Shutdown(EToolShutdownType ShutdownType)
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{
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if (SelectionMechanic)
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{
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SelectionMechanic->Shutdown();
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}
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}
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void UMeshBoundaryToolBase::Render(IToolsContextRenderAPI* RenderAPI)
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{
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if (SelectionMechanic)
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{
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SelectionMechanic->Render(RenderAPI);
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}
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}
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#undef LOCTEXT_NAMESPACE
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