Merge remote-tracking branch 'aesylwinn/editor_camera'
Marc Zinnschlag
9 years ago
commit
60509875e8
@ -0,0 +1,628 @@
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#include "cameracontroller.hpp"
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#include <cmath>
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#include <QKeyEvent>
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#include <osg/BoundingBox>
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#include <osg/Camera>
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#include <osg/ComputeBoundsVisitor>
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#include <osg/Drawable>
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#include <osg/Group>
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#include <osg/Matrixd>
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#include <osg/Quat>
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#include <osgUtil/LineSegmentIntersector>
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namespace CSVRender
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{
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/*
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Camera Controller
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*/
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const osg::Vec3d CameraController::WorldUp = osg::Vec3d(0, 0, 1);
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const osg::Vec3d CameraController::LocalUp = osg::Vec3d(0, 1, 0);
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const osg::Vec3d CameraController::LocalLeft = osg::Vec3d(1, 0, 0);
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const osg::Vec3d CameraController::LocalForward = osg::Vec3d(0, 0, 1);
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CameraController::CameraController()
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: mActive(false)
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, mInverted(false)
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, mCameraSensitivity(1/650.f)
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, mSecondaryMoveMult(50)
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, mWheelMoveMult(8)
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, mCamera(NULL)
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{
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}
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CameraController::~CameraController()
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{
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}
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bool CameraController::isActive() const
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{
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return mActive;
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}
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osg::Camera* CameraController::getCamera() const
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{
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return mCamera;
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}
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double CameraController::getCameraSensitivity() const
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{
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return mCameraSensitivity;
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}
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bool CameraController::getInverted() const
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{
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return mInverted;
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}
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double CameraController::getSecondaryMovementMultiplier() const
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{
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return mSecondaryMoveMult;
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}
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double CameraController::getWheelMovementMultiplier() const
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{
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return mWheelMoveMult;
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}
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void CameraController::setCamera(osg::Camera* camera)
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{
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mCamera = camera;
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mActive = (mCamera != NULL);
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if (mActive)
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onActivate();
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}
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void CameraController::setCameraSensitivity(double value)
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{
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mCameraSensitivity = value;
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}
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void CameraController::setInverted(bool value)
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{
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mInverted = value;
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}
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void CameraController::setSecondaryMovementMultiplier(double value)
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{
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mSecondaryMoveMult = value;
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}
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void CameraController::setWheelMovementMultiplier(double value)
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{
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mWheelMoveMult = value;
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}
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void CameraController::setup(osg::Group* root, unsigned int mask, const osg::Vec3d& up)
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{
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// Find World bounds
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osg::ComputeBoundsVisitor boundsVisitor;
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osg::BoundingBox& boundingBox = boundsVisitor.getBoundingBox();
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boundsVisitor.setTraversalMask(mask);
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root->accept(boundsVisitor);
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if (!boundingBox.valid())
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{
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// Try again without any mask
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boundsVisitor.reset();
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boundsVisitor.setTraversalMask(~0);
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root->accept(boundsVisitor);
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// Last resort, set a default
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if (!boundingBox.valid())
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{
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boundingBox.set(-1, -1, -1, 1, 1, 1);
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}
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}
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// Calculate a good starting position
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osg::Vec3d minBounds = boundingBox.corner(0) - boundingBox.center();
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osg::Vec3d maxBounds = boundingBox.corner(7) - boundingBox.center();
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osg::Vec3d camOffset = up * maxBounds > 0 ? maxBounds : minBounds;
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camOffset *= 2;
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osg::Vec3d eye = camOffset + boundingBox.center();
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osg::Vec3d center = boundingBox.center();
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getCamera()->setViewMatrixAsLookAt(eye, center, up);
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}
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/*
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Free Camera Controller
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*/
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FreeCameraController::FreeCameraController()
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: mLockUpright(false)
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, mModified(false)
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, mFast(false)
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, mLeft(false)
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, mRight(false)
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, mForward(false)
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, mBackward(false)
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, mRollLeft(false)
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, mRollRight(false)
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, mUp(LocalUp)
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, mLinSpeed(1000)
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, mRotSpeed(osg::PI / 2)
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, mSpeedMult(8)
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{
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}
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double FreeCameraController::getLinearSpeed() const
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{
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return mLinSpeed;
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}
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double FreeCameraController::getRotationalSpeed() const
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{
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return mRotSpeed;
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}
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double FreeCameraController::getSpeedMultiplier() const
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{
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return mSpeedMult;
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}
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void FreeCameraController::setLinearSpeed(double value)
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{
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mLinSpeed = value;
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}
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void FreeCameraController::setRotationalSpeed(double value)
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{
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mRotSpeed = value;
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}
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void FreeCameraController::setSpeedMultiplier(double value)
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{
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mSpeedMult = value;
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}
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void FreeCameraController::fixUpAxis(const osg::Vec3d& up)
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{
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mLockUpright = true;
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mUp = up;
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mModified = true;
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}
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void FreeCameraController::unfixUpAxis()
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{
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mLockUpright = false;
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}
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bool FreeCameraController::handleKeyEvent(QKeyEvent* event, bool pressed)
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{
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if (!isActive())
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return false;
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if (event->key() == Qt::Key_Q)
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{
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mRollLeft = pressed;
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}
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else if (event->key() == Qt::Key_E)
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{
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mRollRight = pressed;
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}
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else if (event->key() == Qt::Key_A)
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{
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mLeft = pressed;
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}
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else if (event->key() == Qt::Key_D)
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{
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mRight = pressed;
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}
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else if (event->key() == Qt::Key_W)
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{
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mForward = pressed;
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}
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else if (event->key() == Qt::Key_S)
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{
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mBackward = pressed;
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}
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else if (event->key() == Qt::Key_Shift)
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{
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mFast = pressed;
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}
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else
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{
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return false;
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}
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return true;
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}
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bool FreeCameraController::handleMouseMoveEvent(std::string mode, int x, int y)
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{
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if (!isActive())
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return false;
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if (mode == "p-navi")
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{
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double scalar = getCameraSensitivity() * (getInverted() ? -1.0 : 1.0);
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yaw(x * scalar);
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pitch(y * scalar);
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}
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else if (mode == "s-navi")
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{
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osg::Vec3d movement;
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movement += LocalLeft * -x * getSecondaryMovementMultiplier();
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movement += LocalUp * y * getSecondaryMovementMultiplier();
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translate(movement);
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}
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else if (mode == "t-navi")
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{
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translate(LocalForward * x * (mFast ? getWheelMovementMultiplier() : 1));
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}
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else
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{
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return false;
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}
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return true;
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}
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void FreeCameraController::update(double dt)
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{
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if (!isActive())
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return;
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double linDist = mLinSpeed * dt;
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double rotDist = mRotSpeed * dt;
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if (mFast)
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linDist *= mSpeedMult;
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if (mLeft)
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translate(LocalLeft * linDist);
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if (mRight)
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translate(LocalLeft * -linDist);
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if (mForward)
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translate(LocalForward * linDist);
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if (mBackward)
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translate(LocalForward * -linDist);
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if (!mLockUpright)
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{
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if (mRollLeft)
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roll(-rotDist);
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if (mRollRight)
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roll(rotDist);
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}
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else if(mModified)
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{
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stabilize();
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mModified = false;
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}
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// Normalize the matrix to counter drift
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getCamera()->getViewMatrix().orthoNormal(getCamera()->getViewMatrix());
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}
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void FreeCameraController::yaw(double value)
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{
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getCamera()->getViewMatrix() *= osg::Matrixd::rotate(value, LocalUp);
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mModified = true;
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}
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void FreeCameraController::pitch(double value)
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{
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const double Constraint = osg::PI / 2 - 0.1;
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if (mLockUpright)
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{
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osg::Vec3d eye, center, up;
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getCamera()->getViewMatrixAsLookAt(eye, center, up);
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osg::Vec3d forward = center - eye;
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osg::Vec3d left = up ^ forward;
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double pitchAngle = std::acos(up * mUp);
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if ((mUp ^ up) * left < 0)
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pitchAngle *= -1;
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if (std::abs(pitchAngle + value) > Constraint)
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value = (pitchAngle > 0 ? 1 : -1) * Constraint - pitchAngle;
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}
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getCamera()->getViewMatrix() *= osg::Matrixd::rotate(value, LocalLeft);
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mModified = true;
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}
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void FreeCameraController::roll(double value)
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{
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getCamera()->getViewMatrix() *= osg::Matrixd::rotate(value, LocalForward);
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mModified = true;
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}
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void FreeCameraController::translate(const osg::Vec3d& offset)
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{
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getCamera()->getViewMatrix() *= osg::Matrixd::translate(offset);
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mModified = true;
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}
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void FreeCameraController::stabilize()
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{
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osg::Vec3d eye, center, up;
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getCamera()->getViewMatrixAsLookAt(eye, center, up);
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getCamera()->setViewMatrixAsLookAt(eye, center, mUp);
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}
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/*
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Orbit Camera Controller
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*/
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OrbitCameraController::OrbitCameraController()
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: mInitialized(false)
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, mFast(false)
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, mLeft(false)
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, mRight(false)
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, mUp(false)
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, mDown(false)
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, mRollLeft(false)
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, mRollRight(false)
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, mPickingMask(~0)
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, mCenter(0,0,0)
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, mDistance(0)
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, mOrbitSpeed(osg::PI / 4)
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, mOrbitSpeedMult(4)
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{
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}
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osg::Vec3d OrbitCameraController::getCenter() const
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{
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return mCenter;
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}
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double OrbitCameraController::getOrbitSpeed() const
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{
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return mOrbitSpeed;
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}
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double OrbitCameraController::getOrbitSpeedMultiplier() const
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{
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return mOrbitSpeedMult;
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}
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unsigned int OrbitCameraController::getPickingMask() const
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{
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return mPickingMask;
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}
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void OrbitCameraController::setCenter(const osg::Vec3d& value)
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{
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osg::Vec3d eye, center, up;
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getCamera()->getViewMatrixAsLookAt(eye, center, up);
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mCenter = value;
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mDistance = (eye - mCenter).length();
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getCamera()->setViewMatrixAsLookAt(eye, mCenter, up);
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mInitialized = true;
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}
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void OrbitCameraController::setOrbitSpeed(double value)
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{
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mOrbitSpeed = value;
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}
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void OrbitCameraController::setOrbitSpeedMultiplier(double value)
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{
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mOrbitSpeedMult = value;
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}
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void OrbitCameraController::setPickingMask(unsigned int value)
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{
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mPickingMask = value;
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}
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bool OrbitCameraController::handleKeyEvent(QKeyEvent* event, bool pressed)
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{
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if (!isActive())
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return false;
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if (!mInitialized)
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initialize();
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if (event->key() == Qt::Key_Q)
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{
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mRollLeft = pressed;
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}
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else if (event->key() == Qt::Key_E)
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{
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mRollRight = pressed;
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}
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else if (event->key() == Qt::Key_A)
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{
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mLeft = pressed;
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}
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else if (event->key() == Qt::Key_D)
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{
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mRight = pressed;
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}
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else if (event->key() == Qt::Key_W)
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{
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mUp = pressed;
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}
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else if (event->key() == Qt::Key_S)
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{
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mDown = pressed;
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}
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else if (event->key() == Qt::Key_Shift)
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{
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mFast = pressed;
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}
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else
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{
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return false;
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}
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return true;
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}
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bool OrbitCameraController::handleMouseMoveEvent(std::string mode, int x, int y)
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{
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if (!isActive())
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return false;
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if (!mInitialized)
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initialize();
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if (mode == "p-navi")
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{
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double scalar = getCameraSensitivity() * (getInverted() ? -1.0 : 1.0);
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rotateHorizontal(x * scalar);
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rotateVertical(-y * scalar);
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}
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else if (mode == "s-navi")
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{
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osg::Vec3d movement;
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movement += LocalLeft * x * getSecondaryMovementMultiplier();
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movement += LocalUp * -y * getSecondaryMovementMultiplier();
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||||
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translate(movement);
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}
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else if (mode == "t-navi")
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{
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zoom(-x * (mFast ? getWheelMovementMultiplier() : 1));
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||||
}
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||||
else
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||||
{
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return false;
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||||
}
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return true;
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}
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||||
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void OrbitCameraController::update(double dt)
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{
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||||
if (!isActive())
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return;
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if (!mInitialized)
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initialize();
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||||
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||||
double rotDist = mOrbitSpeed * dt;
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if (mFast)
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rotDist *= mOrbitSpeedMult;
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if (mLeft)
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rotateHorizontal(-rotDist);
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if (mRight)
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rotateHorizontal(rotDist);
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||||
if (mUp)
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rotateVertical(rotDist);
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if (mDown)
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||||
rotateVertical(-rotDist);
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||||
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||||
if (mRollLeft)
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roll(-rotDist);
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||||
if (mRollRight)
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roll(rotDist);
|
||||
|
||||
// Normalize the matrix to counter drift
|
||||
getCamera()->getViewMatrix().orthoNormal(getCamera()->getViewMatrix());
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||||
}
|
||||
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void OrbitCameraController::onActivate()
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||||
{
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mInitialized = false;
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}
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||||
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||||
void OrbitCameraController::initialize()
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||||
{
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||||
static const int DefaultStartDistance = 10000.f;
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||||
|
||||
// Try to intelligently pick focus object
|
||||
osg::ref_ptr<osgUtil::LineSegmentIntersector> intersector (new osgUtil::LineSegmentIntersector(
|
||||
osgUtil::Intersector::PROJECTION, osg::Vec3d(0, 0, 0), LocalForward));
|
||||
|
||||
intersector->setIntersectionLimit(osgUtil::LineSegmentIntersector::LIMIT_NEAREST);
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||||
osgUtil::IntersectionVisitor visitor(intersector);
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||||
|
||||
visitor.setTraversalMask(mPickingMask);
|
||||
|
||||
getCamera()->accept(visitor);
|
||||
|
||||
osg::Vec3d eye, center, up;
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||||
getCamera()->getViewMatrixAsLookAt(eye, center, up, DefaultStartDistance);
|
||||
|
||||
if (intersector->getIntersections().begin() != intersector->getIntersections().end())
|
||||
{
|
||||
mCenter = intersector->getIntersections().begin()->getWorldIntersectPoint();
|
||||
mDistance = (eye - mCenter).length();
|
||||
}
|
||||
else
|
||||
{
|
||||
mCenter = center;
|
||||
mDistance = DefaultStartDistance;
|
||||
}
|
||||
|
||||
mInitialized = true;
|
||||
}
|
||||
|
||||
void OrbitCameraController::rotateHorizontal(double value)
|
||||
{
|
||||
osg::Vec3d eye, center, up;
|
||||
getCamera()->getViewMatrixAsLookAt(eye, center, up);
|
||||
|
||||
osg::Quat rotation = osg::Quat(value, up);
|
||||
osg::Vec3d oldOffset = eye - mCenter;
|
||||
osg::Vec3d newOffset = rotation * oldOffset;
|
||||
|
||||
getCamera()->setViewMatrixAsLookAt(mCenter + newOffset, mCenter, up);
|
||||
}
|
||||
|
||||
void OrbitCameraController::rotateVertical(double value)
|
||||
{
|
||||
osg::Vec3d eye, center, up;
|
||||
getCamera()->getViewMatrixAsLookAt(eye, center, up);
|
||||
|
||||
osg::Vec3d forward = center - eye;
|
||||
osg::Quat rotation = osg::Quat(value, up ^ forward);
|
||||
osg::Vec3d oldOffset = eye - mCenter;
|
||||
osg::Vec3d newOffset = rotation * oldOffset;
|
||||
|
||||
getCamera()->setViewMatrixAsLookAt(mCenter + newOffset, mCenter, up);
|
||||
}
|
||||
|
||||
void OrbitCameraController::roll(double value)
|
||||
{
|
||||
getCamera()->getViewMatrix() *= osg::Matrixd::rotate(value, LocalForward);
|
||||
}
|
||||
|
||||
void OrbitCameraController::translate(const osg::Vec3d& offset)
|
||||
{
|
||||
osg::Vec3d eye, center, up;
|
||||
getCamera()->getViewMatrixAsLookAt(eye, center, up);
|
||||
|
||||
osg::Vec3d newOffset = getCamera()->getViewMatrix().getRotate().inverse() * offset;
|
||||
mCenter += newOffset;
|
||||
eye += newOffset;
|
||||
|
||||
getCamera()->setViewMatrixAsLookAt(eye, mCenter, up);
|
||||
}
|
||||
|
||||
void OrbitCameraController::zoom(double value)
|
||||
{
|
||||
mDistance = std::max(10., mDistance + value);
|
||||
|
||||
osg::Vec3d eye, center, up;
|
||||
getCamera()->getViewMatrixAsLookAt(eye, center, up, 1.f);
|
||||
|
||||
osg::Vec3d offset = (eye - center) * mDistance;
|
||||
|
||||
getCamera()->setViewMatrixAsLookAt(mCenter + offset, mCenter, up);
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,152 @@
|
||||
#ifndef OPENCS_VIEW_CAMERACONTROLLER_H
|
||||
#define OPENCS_VIEW_CAMERACONTROLLER_H
|
||||
|
||||
#include <string>
|
||||
|
||||
#include <osg/ref_ptr>
|
||||
#include <osg/Vec3d>
|
||||
|
||||
class QKeyEvent;
|
||||
|
||||
namespace osg
|
||||
{
|
||||
class Camera;
|
||||
class Group;
|
||||
}
|
||||
|
||||
namespace CSVRender
|
||||
{
|
||||
class CameraController
|
||||
{
|
||||
public:
|
||||
|
||||
static const osg::Vec3d WorldUp;
|
||||
|
||||
static const osg::Vec3d LocalUp;
|
||||
static const osg::Vec3d LocalLeft;
|
||||
static const osg::Vec3d LocalForward;
|
||||
|
||||
CameraController();
|
||||
virtual ~CameraController();
|
||||
|
||||
bool isActive() const;
|
||||
|
||||
osg::Camera* getCamera() const;
|
||||
double getCameraSensitivity() const;
|
||||
bool getInverted() const;
|
||||
double getSecondaryMovementMultiplier() const;
|
||||
double getWheelMovementMultiplier() const;
|
||||
|
||||
void setCamera(osg::Camera*);
|
||||
void setCameraSensitivity(double value);
|
||||
void setInverted(bool value);
|
||||
void setSecondaryMovementMultiplier(double value);
|
||||
void setWheelMovementMultiplier(double value);
|
||||
|
||||
// moves the camera to an intelligent position
|
||||
void setup(osg::Group* root, unsigned int mask, const osg::Vec3d& up);
|
||||
|
||||
virtual bool handleKeyEvent(QKeyEvent* event, bool pressed) = 0;
|
||||
virtual bool handleMouseMoveEvent(std::string mode, int x, int y) = 0;
|
||||
|
||||
virtual void update(double dt) = 0;
|
||||
|
||||
protected:
|
||||
|
||||
virtual void onActivate(){}
|
||||
|
||||
private:
|
||||
|
||||
bool mActive, mInverted;
|
||||
double mCameraSensitivity;
|
||||
double mSecondaryMoveMult;
|
||||
double mWheelMoveMult;
|
||||
|
||||
osg::Camera* mCamera;
|
||||
};
|
||||
|
||||
class FreeCameraController : public CameraController
|
||||
{
|
||||
public:
|
||||
|
||||
FreeCameraController();
|
||||
|
||||
double getLinearSpeed() const;
|
||||
double getRotationalSpeed() const;
|
||||
double getSpeedMultiplier() const;
|
||||
|
||||
void setLinearSpeed(double value);
|
||||
void setRotationalSpeed(double value);
|
||||
void setSpeedMultiplier(double value);
|
||||
|
||||
void fixUpAxis(const osg::Vec3d& up);
|
||||
void unfixUpAxis();
|
||||
|
||||
bool handleKeyEvent(QKeyEvent* event, bool pressed);
|
||||
bool handleMouseMoveEvent(std::string mode, int x, int y);
|
||||
|
||||
void update(double dt);
|
||||
|
||||
private:
|
||||
|
||||
void yaw(double value);
|
||||
void pitch(double value);
|
||||
void roll(double value);
|
||||
void translate(const osg::Vec3d& offset);
|
||||
|
||||
void stabilize();
|
||||
|
||||
bool mLockUpright, mModified;
|
||||
bool mFast, mLeft, mRight, mForward, mBackward, mRollLeft, mRollRight;
|
||||
osg::Vec3d mUp;
|
||||
|
||||
double mLinSpeed;
|
||||
double mRotSpeed;
|
||||
double mSpeedMult;
|
||||
};
|
||||
|
||||
class OrbitCameraController : public CameraController
|
||||
{
|
||||
public:
|
||||
|
||||
OrbitCameraController();
|
||||
|
||||
osg::Vec3d getCenter() const;
|
||||
double getOrbitSpeed() const;
|
||||
double getOrbitSpeedMultiplier() const;
|
||||
unsigned int getPickingMask() const;
|
||||
|
||||
void setCenter(const osg::Vec3d& center);
|
||||
void setOrbitSpeed(double value);
|
||||
void setOrbitSpeedMultiplier(double value);
|
||||
void setPickingMask(unsigned int value);
|
||||
|
||||
bool handleKeyEvent(QKeyEvent* event, bool pressed);
|
||||
bool handleMouseMoveEvent(std::string mode, int x, int y);
|
||||
|
||||
void update(double dt);
|
||||
|
||||
private:
|
||||
|
||||
void onActivate();
|
||||
|
||||
void initialize();
|
||||
|
||||
void rotateHorizontal(double value);
|
||||
void rotateVertical(double value);
|
||||
void roll(double value);
|
||||
void translate(const osg::Vec3d& offset);
|
||||
void zoom(double value);
|
||||
|
||||
bool mInitialized;
|
||||
bool mFast, mLeft, mRight, mUp, mDown, mRollLeft, mRollRight;
|
||||
unsigned int mPickingMask;
|
||||
osg::Vec3d mCenter;
|
||||
double mDistance;
|
||||
|
||||
double mOrbitSpeed;
|
||||
double mOrbitSpeedMult;
|
||||
};
|
||||
}
|
||||
|
||||
#endif
|
||||
@ -0,0 +1,37 @@
|
||||
#include "orbitcameramode.hpp"
|
||||
|
||||
#include <QMenu>
|
||||
|
||||
#include "worldspacewidget.hpp"
|
||||
|
||||
namespace CSVRender
|
||||
{
|
||||
OrbitCameraMode::OrbitCameraMode(WorldspaceWidget* worldspaceWidget, const QIcon& icon, const QString& tooltip,
|
||||
QWidget* parent)
|
||||
: ModeButton(icon, tooltip, parent)
|
||||
, mWorldspaceWidget(worldspaceWidget)
|
||||
, mCenterOnSelection(0)
|
||||
{
|
||||
}
|
||||
|
||||
void OrbitCameraMode::activate(CSVWidget::SceneToolbar* toolbar)
|
||||
{
|
||||
mCenterOnSelection = new QAction("Center on selected object", this);
|
||||
connect(mCenterOnSelection, SIGNAL(triggered()), this, SLOT(centerSelection()));
|
||||
}
|
||||
|
||||
bool OrbitCameraMode::createContextMenu(QMenu* menu)
|
||||
{
|
||||
if (menu)
|
||||
{
|
||||
menu->addAction(mCenterOnSelection);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
void OrbitCameraMode::centerSelection()
|
||||
{
|
||||
mWorldspaceWidget->centerOrbitCameraOnSelection();
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,33 @@
|
||||
#ifndef CSV_RENDER_ORBITCAMERAPICKMODE_H
|
||||
#define CSV_RENDER_ORBITCAMERAPICKMODE_H
|
||||
|
||||
#include "../widget/modebutton.hpp"
|
||||
|
||||
namespace CSVRender
|
||||
{
|
||||
class WorldspaceWidget;
|
||||
|
||||
class OrbitCameraMode : public CSVWidget::ModeButton
|
||||
{
|
||||
Q_OBJECT
|
||||
|
||||
public:
|
||||
|
||||
OrbitCameraMode(WorldspaceWidget* worldspaceWidget, const QIcon& icon, const QString& tooltip = "",
|
||||
QWidget* parent = 0);
|
||||
|
||||
virtual void activate(CSVWidget::SceneToolbar* toolbar);
|
||||
virtual bool createContextMenu(QMenu* menu);
|
||||
|
||||
private:
|
||||
|
||||
WorldspaceWidget* mWorldspaceWidget;
|
||||
QAction* mCenterOnSelection;
|
||||
|
||||
private slots:
|
||||
|
||||
void centerSelection();
|
||||
};
|
||||
}
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue