62 lines
1.4 KiB
C++
62 lines
1.4 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "Snapping/BasePositionSnapSolver3.h"
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#define UE_API MODELINGCOMPONENTS_API
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class FToolDataVisualizer;
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namespace UE
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{
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namespace Geometry
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{
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/**
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* FRaySpatialSnapSolver solves for a Point snap location based on an input Ray
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* and a set of snap targets (3D points and 3D lines).
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*
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* See FBasePositionSnapSolver3 for details on how to set up the snap problem
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* and get results.
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*/
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class FRaySpatialSnapSolver : public FBasePositionSnapSolver3
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{
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public:
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UE_API FRaySpatialSnapSolver();
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/**
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* Optional function that will be used to project potential snap points onto constraints.
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* Note that Line/Curve constraints are still respected, so eg if this projects to a 3D grid,
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* then when calculating possible line-snap positions, the 3D grid point will be projected back
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* onto the line targets.
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*/
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TFunction<FVector3d(const FVector3d&)> PointConstraintFunc = nullptr;
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//
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// solving
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//
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/** Solve the snapping problem */
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UE_API void UpdateSnappedPoint(const FRay3d& Ray);
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//
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// Utility rendering
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//
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/** Visualization of snap targets and result (if available) */
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UE_API void Draw(FToolDataVisualizer* Renderer, float LineLength, TMap<int,FLinearColor>* ColorMap = nullptr);
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protected:
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TArray<FSnapTargetPoint> GeneratedTargetPoints;
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UE_API void GenerateTargetPoints(const FRay3d& Ray);
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};
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} // end namespace UE::Geometry
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} // end namespace UE
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#undef UE_API
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