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79 lines
3.4 KiB
C++
79 lines
3.4 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2025 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#ifndef __OPENSPACE_MODULE_TOUCH___DIRECTINPUT_SOLVER___H__
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#define __OPENSPACE_MODULE_TOUCH___DIRECTINPUT_SOLVER___H__
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#include <openspace/util/touch.h>
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#include <modules/touch/ext/levmarq.h>
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#include <vector>
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namespace openspace {
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class Camera;
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class SceneGraphNode;
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/**
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* The DirectInputSolver is used to minimize the L2 error of touch input to 3D camera
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* position. It uses the levmarq algorithm in order to do this.
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*/
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class DirectInputSolver {
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public:
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/**
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* Stores the selected node, the cursor ID as well as the surface coordinates the
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* cursor touched
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*/
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struct SelectedBody {
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size_t id = 0;
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SceneGraphNode* node = nullptr;
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glm::dvec3 coordinates = glm::dvec3(0.0);
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};
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DirectInputSolver();
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/**
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* Returns true if the error could be minimized within certain bounds. If the error is
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* found to be outside the bounds after a certain amount of iterations, this function
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* fails.
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*/
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bool solve(const std::vector<TouchInputHolder>& list,
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const std::vector<SelectedBody>& selectedBodies,
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std::vector<double>* calculatedValues, const Camera& camera);
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int nDof() const;
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const LMstat& levMarqStat();
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void setLevMarqVerbosity(bool verbose);
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private:
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int _nDof = 0;
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LMstat _lmstat;
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};
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} // openspace namespace
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#endif // __OPENSPACE_MODULE_TOUCH___DIRECTINPUT_SOLVER___H__
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