mirror of
https://github.com/OpenSpace/OpenSpace.git
synced 2026-01-05 03:00:58 -06:00
206 lines
8.2 KiB
C++
206 lines
8.2 KiB
C++
/*****************************************************************************************
|
|
* *
|
|
* OpenSpace *
|
|
* *
|
|
* Copyright (c) 2014-2017 *
|
|
* *
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
|
|
* software and associated documentation files (the "Software"), to deal in the Software *
|
|
* without restriction, including without limitation the rights to use, copy, modify, *
|
|
* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
|
|
* permit persons to whom the Software is furnished to do so, subject to the following *
|
|
* conditions: *
|
|
* *
|
|
* The above copyright notice and this permission notice shall be included in all copies *
|
|
* or substantial portions of the Software. *
|
|
* *
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
|
|
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
|
|
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
|
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
|
|
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
|
|
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
|
|
****************************************************************************************/
|
|
|
|
#ifndef __OPENSPACE_MODULE_TOUCH___TOUCH_INTERACTION___H__
|
|
#define __OPENSPACE_MODULE_TOUCH___TOUCH_INTERACTION___H__
|
|
|
|
#include <openspace/properties/propertyowner.h>
|
|
|
|
#include <modules/touch/ext/levmarq.h>
|
|
#include <modules/touch/include/tuioear.h>
|
|
|
|
#include <openspace/properties/scalar/boolproperty.h>
|
|
#include <openspace/properties/scalar/floatproperty.h>
|
|
#include <openspace/properties/scalar/intproperty.h>
|
|
#include <openspace/properties/stringproperty.h>
|
|
#include <openspace/properties/vector/ivec2property.h>
|
|
#include <openspace/properties/vector/vec4property.h>
|
|
|
|
namespace openspace {
|
|
|
|
class Camera;
|
|
class SceneGraphNode;
|
|
|
|
class TouchInteraction : public properties::PropertyOwner {
|
|
public:
|
|
using Point = std::pair<int, TUIO::TuioPoint>;
|
|
|
|
TouchInteraction();
|
|
|
|
// for interpretInteraction()
|
|
enum Type { ROT = 0, PINCH, PAN, ROLL, PICK };
|
|
|
|
// Stores the velocity in all 6DOF
|
|
struct VelocityStates {
|
|
glm::dvec2 orbit;
|
|
double zoom;
|
|
double roll;
|
|
glm::dvec2 pan;
|
|
};
|
|
|
|
// Stores the selected node, the cursor ID as well as the surface coordinates the
|
|
// cursor touched
|
|
struct SelectedBody {
|
|
int id;
|
|
SceneGraphNode* node;
|
|
glm::dvec3 coordinates;
|
|
};
|
|
|
|
// Used in the LM algorithm
|
|
struct FunctionData {
|
|
std::vector<glm::dvec3> selectedPoints;
|
|
std::vector<glm::dvec2> screenPoints;
|
|
int nDOF;
|
|
glm::dvec2(*castToNDC)(glm::dvec3, Camera&, SceneGraphNode*);
|
|
double(*distToMinimize)(double* par, int x, void* fdata, LMstat* lmstat);
|
|
Camera* camera;
|
|
SceneGraphNode* node;
|
|
LMstat stats;
|
|
double objectScreenRadius;
|
|
};
|
|
|
|
/* Main function call
|
|
* 1 Checks if doubleTap occured
|
|
* 2 Goes through the guiMode() function
|
|
* 3 Continues if GUI isn't on
|
|
* 4 If the node in focus is large enough and all contact points have selected it,
|
|
* calls directControl() function for direct-manipulation
|
|
* 5 Updates std::vector<SelectedBody> _selected (only if LMA successfully
|
|
* converged, avoids interaction to snap on LMA fails)
|
|
* 6 If directControl() wasn't called this frame, interpret the incoming
|
|
* list and decide what type of interaction this frame should do
|
|
* 7 Compute the new total velocities after interaction
|
|
* 8 Evaluate if directControl should be called next frame- true if all contact points
|
|
* select the same node and said node is larger than _nodeRadiusThreshold
|
|
*/
|
|
void updateStateFromInput(const std::vector<TUIO::TuioCursor>& list,
|
|
std::vector<Point>& lastProcessed);
|
|
|
|
// Calculates the new camera state with velocities and time since last frame
|
|
void step(double dt);
|
|
|
|
// Used to save LMA data for one frame if the user chose to
|
|
void unitTest();
|
|
|
|
// Called each frame we have no new input, used to reset data
|
|
void resetAfterInput();
|
|
|
|
// Sets _tap to true, called if tap occured current frame (called from touchmodule)
|
|
void tap();
|
|
// Set touchactive as true from the touchmodule if incoming list isn't empty, used to
|
|
// void mouse input
|
|
void touchActive(bool active);
|
|
|
|
// Get & Setters
|
|
Camera* getCamera();
|
|
SceneGraphNode* getFocusNode();
|
|
void setFocusNode(SceneGraphNode* focusNode);
|
|
void setCamera(Camera* cam);
|
|
|
|
private:
|
|
/* Returns true if we have the GUI window open. If so, emulates the incoming touch
|
|
* input to a mouse such that we can interact with the GUI
|
|
*/
|
|
bool guiMode(const std::vector<TUIO::TuioCursor>& list);
|
|
|
|
/* Function that calculates the new camera state such that it minimizes the L2 error
|
|
* in screenspace
|
|
* between contact points and surface coordinates projected to clip space using LMA
|
|
*/
|
|
void directControl(const std::vector<TUIO::TuioCursor>& list);
|
|
|
|
/* Traces each contact point into the scene as a ray
|
|
* if the ray hits a node, save the id, node and surface coordinates the cursor hit
|
|
* in the list _selected
|
|
*/
|
|
void findSelectedNode(const std::vector<TUIO::TuioCursor>& list);
|
|
|
|
/* Returns an int (ROT = 0, PINCH, PAN, ROLL, PICK) for what interaction to be used,
|
|
* depending on what input was gotten
|
|
*/
|
|
int interpretInteraction(const std::vector<TUIO::TuioCursor>& list,
|
|
const std::vector<Point>& lastProcessed);
|
|
|
|
// Compute new velocity according to the interpreted action
|
|
void computeVelocities(const std::vector<TUIO::TuioCursor>& list,
|
|
const std::vector<Point>& lastProcessed);
|
|
|
|
/* Decelerate the velocities. Function is called in step() but is dereferenced from
|
|
* frame time to assure same behaviour on all systems
|
|
*/
|
|
void decelerate(double dt);
|
|
|
|
// Resets all properties that can be changed in the GUI to default
|
|
void resetToDefault();
|
|
|
|
Camera* _camera;
|
|
SceneGraphNode* _focusNode = nullptr;
|
|
|
|
// Property variables
|
|
properties::StringProperty _origin;
|
|
properties::BoolProperty _unitTest;
|
|
properties::BoolProperty _touchActive;
|
|
properties::BoolProperty _reset;
|
|
properties::IntProperty _maxTapTime;
|
|
properties::IntProperty _deceleratesPerSecond;
|
|
properties::FloatProperty _touchScreenSize;
|
|
properties::FloatProperty _tapZoomFactor;
|
|
properties::FloatProperty _nodeRadiusThreshold;
|
|
properties::FloatProperty _rollAngleThreshold;
|
|
properties::FloatProperty _orbitSpeedThreshold;
|
|
properties::FloatProperty _spinSensitivity;
|
|
properties::FloatProperty _inputStillThreshold;
|
|
properties::FloatProperty _centroidStillThreshold;
|
|
properties::FloatProperty _interpretPan;
|
|
properties::FloatProperty _slerpTime;
|
|
properties::IVec2Property _guiButton;
|
|
properties::Vec4Property _friction;
|
|
|
|
// Class variables
|
|
VelocityStates _vel;
|
|
VelocityStates _lastVel;
|
|
VelocityStates _sensitivity;
|
|
|
|
double _projectionScaleFactor;
|
|
double _currentRadius;
|
|
double _slerpdT;
|
|
double _timeSlack;
|
|
int _numOfTests;
|
|
TUIO::TuioTime _time;
|
|
bool _directTouchMode;
|
|
bool _tap;
|
|
bool _doubleTap;
|
|
bool _lmSuccess;
|
|
bool _guiON;
|
|
std::vector<SelectedBody> _selected;
|
|
LMstat _lmstat;
|
|
glm::dquat _toSlerp;
|
|
glm::dvec3 _centroid;
|
|
};
|
|
|
|
} // openspace namespace
|
|
|
|
#endif // __OPENSPACE_MODULE_TOUCH___TOUCH_INTERACTION___H__
|
|
|