/**************************************************************************** ** ** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** This file is part of the QtSensors module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** You may use this file under the terms of the BSD license as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names ** of its contributors may be used to endorse or promote products derived ** from this software without specific prior written permission. ** ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** ** $QT_END_LICENSE$ ** ****************************************************************************/ import QtQuick 2.1 import QtQuick.Controls 1.0 //! [0] import QtSensors 5.0 //! [0] ApplicationWindow { title: "Accelerate Bubble" id: mainWindow width: 320 height: 480 visible: true //! [1] Accelerometer { id: accel dataRate: 100 //! [1] //! [2] active:true //! [2] //! [3] onReadingChanged: { var newX = (bubble.x + calcRoll(accel.reading.x, accel.reading.y, accel.reading.z) * .1) var newY = (bubble.y - calcPitch(accel.reading.x, accel.reading.y, accel.reading.z) * .1) if (newX < 0) newX = 0 if (newX > mainWindow.width - bubble.width) newX = mainWindow.width - bubble.width if (newY < 18) newY = 18 if (newY > mainWindow.height - bubble.height) newY = mainWindow.height - bubble.height bubble.x = newX bubble.y = newY } //! [3] } function calcPitch(x,y,z) { return -(Math.atan(y / Math.sqrt(x * x + z * z)) * 57.2957795); } function calcRoll(x,y,z) { return -(Math.atan(x / Math.sqrt(y * y + z * z)) * 57.2957795); } Image { id: bubble source: "content/Bluebubble.svg" smooth: true property real centerX: mainWindow.width / 2 property real centerY: mainWindow.height / 2 property real bubbleCenter: bubble.width / 2 x: centerX - bubbleCenter y: centerY - bubbleCenter Behavior on y { SmoothedAnimation { easing.type: Easing.Linear duration: 100 } } Behavior on x { SmoothedAnimation { easing.type: Easing.Linear duration: 100 } } } }