├── .gitignore ├── LeapCameraControls.js ├── LeapObjectControls.js ├── README.md ├── css └── style.css ├── example.html └── js ├── Detector.js ├── jquery.min.js ├── leap.min.js └── three.min.js /.gitignore: -------------------------------------------------------------------------------- 1 | .DS_Store -------------------------------------------------------------------------------- /LeapCameraControls.js: -------------------------------------------------------------------------------- 1 | /* 2 | * @author Torsten Sprenger / http://torstensprenger.com 3 | * 4 | * Leap Camera Controls (http://leapmotion.com) 5 | * 6 | */ 7 | 8 | THREE.LeapCameraControls = function(camera) { 9 | var _this = this; 10 | 11 | this.camera = camera; 12 | 13 | // api 14 | this.enabled = true; 15 | this.target = new THREE.Vector3(0, 0, 0); 16 | this.step = (camera.position.z == 0 ? Math.pow(10, (Math.log(camera.near) + Math.log(camera.far))/Math.log(10))/10.0 : camera.position.z); 17 | this.fingerFactor = 2; 18 | 19 | // `...Hands` : integer or range given as an array of length 2 20 | // `...Fingers` : integer or range given as an array of length 2 21 | // `...RightHanded` : boolean indicating whether to use left or right hand for controlling (if number of hands > 1) 22 | // `...HandPosition`: boolean indicating whether to use palm position or finger tip position (if number of fingers == 1) 23 | // `...Stabilized` : boolean indicating whether to use stabilized palm/finger tip position or not 24 | 25 | // rotation 26 | this.rotateEnabled = true; 27 | this.rotateSpeed = 1.0; 28 | this.rotateHands = 1; 29 | this.rotateFingers = [2, 3]; 30 | this.rotateRightHanded = true; 31 | this.rotateHandPosition = true; 32 | this.rotateStabilized = false; 33 | this.rotateMin = 0; 34 | this.rotateMax = Math.PI; 35 | 36 | // zoom 37 | this.zoomEnabled = true; 38 | this.zoomSpeed = 1.0; 39 | this.zoomHands = 1; 40 | this.zoomFingers = [4, 5]; 41 | this.zoomRightHanded = true; 42 | this.zoomHandPosition = true; 43 | this.zoomStabilized = false; 44 | this.zoomMin = _this.camera.near; 45 | this.zoomMax = _this.camera.far; 46 | 47 | // pan 48 | this.panEnabled = true; 49 | this.panSpeed = 1.0; 50 | this.panHands = 2; 51 | this.panFingers = [6, 12]; 52 | this.panRightHanded = true; 53 | this.panHandPosition = true; 54 | this.panStabilized = false; 55 | 56 | // internals 57 | var _rotateXLast = null; 58 | var _rotateYLast = null; 59 | var _zoomZLast = null; 60 | var _panXLast = null; 61 | var _panYLast = null; 62 | var _panZLast = null; 63 | 64 | // helpers 65 | this.transformFactor = function(action) { 66 | switch(action) { 67 | case 'rotate': 68 | return _this.rotateSpeed * (_this.rotateHandPosition ? 1 : _this.fingerFactor); 69 | case 'zoom': 70 | return _this.zoomSpeed * (_this.zoomHandPosition ? 1 : _this.fingerFactor); 71 | case 'pan': 72 | return _this.panSpeed * (_this.panHandPosition ? 1 : _this.fingerFactor); 73 | }; 74 | }; 75 | 76 | this.rotateTransform = function(delta) { 77 | return _this.transformFactor('rotate') * THREE.Math.mapLinear(delta, -400, 400, -Math.PI, Math.PI); 78 | }; 79 | 80 | this.zoomTransform = function(delta) { 81 | return _this.transformFactor('zoom') * THREE.Math.mapLinear(delta, -400, 400, -_this.step, _this.step); 82 | }; 83 | 84 | this.panTransform = function(delta) { 85 | return _this.transformFactor('pan') * THREE.Math.mapLinear(delta, -400, 400, -_this.step, _this.step); 86 | }; 87 | 88 | this.applyGesture = function(frame, action) { 89 | var hl = frame.hands.length; 90 | var fl = frame.pointables.length; 91 | 92 | switch(action) { 93 | case 'rotate': 94 | if (_this.rotateHands instanceof Array) { 95 | if (_this.rotateFingers instanceof Array) { 96 | if (_this.rotateHands[0] <= hl && hl <= _this.rotateHands[1] && _this.rotateFingers[0] <= fl && fl <= _this.rotateFingers[1]) return true; 97 | } else { 98 | if (_this.rotateHands[0] <= hl && hl <= _this.rotateHands[1] && _this.rotateFingers == fl) return true; 99 | }; 100 | } else { 101 | if (_this.rotateFingers instanceof Array) { 102 | if (_this.rotateHands == hl && _this.rotateFingers[0] <= fl && fl <= _this.rotateFingers[1]) return true; 103 | } else { 104 | if (_this.rotateHands == hl && _this.rotateFingers == fl) return true; 105 | }; 106 | }; 107 | break; 108 | case 'zoom': 109 | if (_this.zoomHands instanceof Array) { 110 | if (_this.zoomFingers instanceof Array) { 111 | if (_this.zoomHands[0] <= hl && hl <= _this.zoomHands[1] && _this.zoomFingers[0] <= fl && fl <= _this.zoomFingers[1]) return true; 112 | } else { 113 | if (_this.zoomHands[0] <= hl && hl <= _this.zoomHands[1] && _this.zoomFingers == fl) return true; 114 | }; 115 | } else { 116 | if (_this.zoomFingers instanceof Array) { 117 | if (_this.zoomHands == hl && _this.zoomFingers[0] <= fl && fl <= _this.zoomFingers[1]) return true; 118 | } else { 119 | if (_this.zoomHands == hl && _this.zoomFingers == fl) return true; 120 | }; 121 | }; 122 | break; 123 | case 'pan': 124 | if (_this.panHands instanceof Array) { 125 | if (_this.panFingers instanceof Array) { 126 | if (_this.panHands[0] <= hl && hl <= _this.panHands[1] && _this.panFingers[0] <= fl && fl <= _this.panFingers[1]) return true; 127 | } else { 128 | if (_this.panHands[0] <= hl && hl <= _this.panHands[1] && _this.panFingers == fl) return true; 129 | }; 130 | } else { 131 | if (_this.panFingers instanceof Array) { 132 | if (_this.panHands == hl && _this.panFingers[0] <= fl && fl <= _this.panFingers[1]) return true; 133 | } else { 134 | if (_this.panHands == hl && _this.panFingers == fl) return true; 135 | }; 136 | }; 137 | break; 138 | }; 139 | 140 | return false; 141 | }; 142 | 143 | this.hand = function(frame, action) { 144 | var hds = frame.hands; 145 | 146 | if (hds.length > 0) { 147 | if (hds.length == 1) { 148 | return hds[0]; 149 | } else if (hds.length == 2) { 150 | var lh, rh; 151 | if (hds[0].palmPosition[0] < hds[1].palmPosition[0]) { 152 | lh = hds[0]; 153 | rh = hds[1]; 154 | } else { 155 | lh = hds[1]; 156 | rh = hds[0]; 157 | } 158 | switch(action) { 159 | case 'rotate': 160 | if (_this.rotateRightHanded) { 161 | return rh; 162 | } else { 163 | return lh; 164 | }; 165 | case 'zoom': 166 | if (_this.zoomRightHanded) { 167 | return rh; 168 | } else { 169 | return lh; 170 | }; 171 | case 'pan': 172 | if (_this.panRightHanded) { 173 | return rh; 174 | } else { 175 | return lh; 176 | }; 177 | }; 178 | }; 179 | }; 180 | 181 | return false; 182 | }; 183 | 184 | this.position = function(frame, action) { 185 | // assertion: if `...HandPosition` is false, then `...Fingers` needs to be 1 or [1, 1] 186 | var h; 187 | switch(action) { 188 | case 'rotate': 189 | h = _this.hand(frame, 'rotate'); 190 | return (_this.rotateHandPosition 191 | ? (_this.rotateStabilized ? h.stabilizedPalmPosition : h.palmPosition) 192 | : (_this.rotateStabilized ? frame.pointables[0].stabilizedTipPosition : frame.pointables[0].tipPosition) 193 | ); 194 | case 'zoom': 195 | h = _this.hand(frame, 'zoom'); 196 | return (_this.zoomHandPosition 197 | ? (_this.zoomStabilized ? h.stabilizedPalmPosition : h.palmPosition) 198 | : (_this.zoomStabilized ? frame.pointables[0].stabilizedTipPosition : frame.pointables[0].tipPosition) 199 | ); 200 | case 'pan': 201 | h = _this.hand(frame, 'pan'); 202 | return (_this.panHandPosition 203 | ? (_this.panStabilized ? h.stabilizedPalmPosition : h.palmPosition) 204 | : (_this.panStabilized ? frame.pointables[0].stabilizedTipPosition : frame.pointables[0].tipPosition) 205 | ); 206 | }; 207 | }; 208 | 209 | // methods 210 | this.rotateCamera = function(frame) { 211 | if (_this.rotateEnabled && _this.applyGesture(frame, 'rotate')) { 212 | // rotate around axis in xy-plane (in target coordinate system) which is orthogonal to camera vector 213 | var y = _this.position(frame, 'rotate')[1]; 214 | if (!_rotateYLast) _rotateYLast = y; 215 | var yDelta = y - _rotateYLast; 216 | var t = new THREE.Vector3().subVectors(_this.camera.position, _this.target); // translate 217 | angleDelta = _this.rotateTransform(yDelta); 218 | newAngle = t.angleTo(new THREE.Vector3(0, 1, 0)) + angleDelta; 219 | if (_this.rotateMin < newAngle && newAngle < _this.rotateMax) { 220 | var n = new THREE.Vector3(t.z, 0, -t.x).normalize(); 221 | var matrixX = new THREE.Matrix4().makeRotationAxis(n, angleDelta); 222 | _this.camera.position = t.applyMatrix4(matrixX).add(_this.target); // rotate and translate back 223 | }; 224 | 225 | // rotate around y-axis translated by target vector 226 | var x = _this.position(frame, 'rotate')[0]; 227 | if (!_rotateXLast) _rotateXLast = x; 228 | var xDelta = x - _rotateXLast; 229 | var matrixY = new THREE.Matrix4().makeRotationY(-_this.rotateTransform(xDelta)); 230 | _this.camera.position.sub(_this.target).applyMatrix4(matrixY).add(_this.target); // translate, rotate and translate back 231 | _this.camera.lookAt(_this.target); 232 | 233 | _rotateYLast = y; 234 | _rotateXLast = x; 235 | _zoomZLast = null; 236 | _panXLast = null; 237 | _panYLast = null; 238 | _panZLast = null; 239 | } else { 240 | _rotateYLast = null; 241 | _rotateXLast = null; 242 | }; 243 | }; 244 | 245 | this.zoomCamera = function(frame) { 246 | if (_this.zoomEnabled && _this.applyGesture(frame, 'zoom')) { 247 | var z = _this.position(frame, 'zoom')[2]; 248 | if (!_zoomZLast) _zoomZLast = z; 249 | var zDelta = z - _zoomZLast; 250 | var t = new THREE.Vector3().subVectors(_this.camera.position, _this.target); 251 | lengthDelta = _this.zoomTransform(zDelta); 252 | newLength = t.length() - lengthDelta; 253 | if (_this.zoomMin < newLength && newLength < _this.zoomMax) { 254 | t.normalize().multiplyScalar(lengthDelta); 255 | _this.camera.position.sub(t); 256 | }; 257 | 258 | _zoomZLast = z; 259 | _rotateXLast = null; 260 | _rotateYLast = null; 261 | _panXLast = null; 262 | _panYLast = null; 263 | _panZLast = null; 264 | } else { 265 | _zoomZLast = null; 266 | }; 267 | }; 268 | 269 | this.panCamera = function(frame) { 270 | if (_this.panEnabled && _this.applyGesture(frame, 'pan')) { 271 | var x = _this.position(frame, 'pan')[0]; 272 | var y = _this.position(frame, 'pan')[1]; 273 | var z = _this.position(frame, 'pan')[2]; 274 | if (!_panXLast) _panXLast = x; 275 | if (!_panYLast) _panYLast = y; 276 | if (!_panZLast) _panZLast = z; 277 | var xDelta = x - _panXLast; 278 | var yDelta = y - _panYLast; 279 | var zDelta = z - _panZLast; 280 | 281 | var v = _this.camera.localToWorld(new THREE.Vector3(_this.panTransform(xDelta), _this.panTransform(yDelta), _this.panTransform(zDelta))); 282 | v.sub(_this.camera.position); 283 | 284 | _this.camera.position.sub(v); 285 | _this.target.sub(v); 286 | 287 | _panXLast = x; 288 | _panYLast = y; 289 | _panZLast = z; 290 | _rotateXLast = null; 291 | _rotateYLast = null; 292 | _zoomZLast = null; 293 | } else { 294 | _panXLast = null; 295 | _panYLast = null; 296 | _panZLast = null; 297 | }; 298 | }; 299 | 300 | this.update = function(frame) { 301 | if (_this.enabled) { 302 | _this.rotateCamera(frame); 303 | _this.zoomCamera(frame); 304 | _this.panCamera(frame); 305 | }; 306 | }; 307 | }; -------------------------------------------------------------------------------- /LeapObjectControls.js: -------------------------------------------------------------------------------- 1 | /* 2 | * @author Torsten Sprenger / http://torstensprenger.com 3 | * 4 | * Leap Object Controls (http://leapmotion.com) 5 | * 6 | */ 7 | 8 | THREE.LeapObjectControls = function(camera, object) { 9 | var _this = this; 10 | 11 | this.camera = camera; 12 | this.object = object; 13 | 14 | // api 15 | this.enabled = true; 16 | this.step = (camera.position.z == 0 ? Math.pow(10, (Math.log(camera.near) + Math.log(camera.far))/Math.log(10))/10.0 : camera.position.z); 17 | this.fingerFactor = 2; 18 | 19 | // `...Hands` : integer or range given as an array of length 2 20 | // `...Fingers` : integer or range given as an array of length 2 21 | // `...RightHanded` : boolean indicating whether to use left or right hand for controlling (if number of hands > 1) 22 | // `...HandPosition`: boolean indicating whether to use palm position or finger tip position (if number of fingers == 1) 23 | // `...Stabilized` : boolean indicating whether to use stabilized palm/finger tip position or not 24 | 25 | // rotation 26 | this.rotateEnabled = true; 27 | this.rotateSpeed = 4.0; 28 | this.rotateHands = 1; 29 | this.rotateFingers = [2, 3]; 30 | this.rotateRightHanded = true; 31 | this.rotateHandPosition = true; 32 | this.rotateStabilized = false; 33 | this.rotateMin = 0; 34 | this.rotateMax = Math.PI; 35 | 36 | // scale 37 | this.scaleEnabled = true; 38 | this.scaleSpeed = 1.0; 39 | this.scaleHands = 1; 40 | this.scaleFingers = [4, 5]; 41 | this.scaleRightHanded = true; 42 | this.scaleHandPosition = true; 43 | this.scaleStabilized = false; 44 | this.scaleMin = 0.1; 45 | this.scaleMax = 10; 46 | 47 | // pan 48 | this.panEnabled = true; 49 | this.panSpeed = 1.0; 50 | this.panHands = 2; 51 | this.panFingers = [6, 12]; 52 | this.panRightHanded = true; 53 | this.panHandPosition = true; 54 | this.panStabilized = false; 55 | 56 | // internals 57 | var _rotateXLast = null; 58 | var _rotateYLast = null; 59 | var _scaleZLast = null; 60 | var _panXLast = null; 61 | var _panYLast = null; 62 | var _panZLast = null; 63 | 64 | // helpers 65 | this.transformFactor = function(action) { 66 | switch(action) { 67 | case 'rotate': 68 | return _this.rotateSpeed * (_this.rotateHandPosition ? 1 : _this.fingerFactor); 69 | case 'scale': 70 | return _this.scaleSpeed * (_this.scaleHandPosition ? 1 : _this.fingerFactor); 71 | case 'pan': 72 | return _this.panSpeed * (_this.panHandPosition ? 1 : _this.fingerFactor); 73 | }; 74 | }; 75 | 76 | this.rotateTransform = function(delta) { 77 | return _this.transformFactor('rotate') * THREE.Math.mapLinear(delta, -400, 400, -Math.PI, Math.PI); 78 | }; 79 | 80 | this.scaleTransform = function(delta) { 81 | return _this.transformFactor('scale') * THREE.Math.mapLinear(delta, -400, 400, -2, 2); 82 | }; 83 | 84 | this.panTransform = function(delta) { 85 | return _this.transformFactor('pan') * THREE.Math.mapLinear(delta, -400, 400, -_this.step, _this.step); 86 | }; 87 | 88 | this.applyGesture = function(frame, action) { 89 | var hl = frame.hands.length; 90 | var fl = frame.pointables.length; 91 | 92 | switch(action) { 93 | case 'rotate': 94 | if (_this.rotateHands instanceof Array) { 95 | if (_this.rotateFingers instanceof Array) { 96 | if (_this.rotateHands[0] <= hl && hl <= _this.rotateHands[1] && _this.rotateFingers[0] <= fl && fl <= _this.rotateFingers[1]) return true; 97 | } else { 98 | if (_this.rotateHands[0] <= hl && hl <= _this.rotateHands[1] && _this.rotateFingers == fl) return true; 99 | }; 100 | } else { 101 | if (_this.rotateFingers instanceof Array) { 102 | if (_this.rotateHands == hl && _this.rotateFingers[0] <= fl && fl <= _this.rotateFingers[1]) return true; 103 | } else { 104 | if (_this.rotateHands == hl && _this.rotateFingers == fl) return true; 105 | }; 106 | }; 107 | break; 108 | case 'scale': 109 | if (_this.scaleHands instanceof Array) { 110 | if (_this.scaleFingers instanceof Array) { 111 | if (_this.scaleHands[0] <= hl && hl <= _this.scaleHands[1] && _this.scaleFingers[0] <= fl && fl <= _this.scaleFingers[1]) return true; 112 | } else { 113 | if (_this.scaleHands[0] <= hl && hl <= _this.scaleHands[1] && _this.scaleFingers == fl) return true; 114 | }; 115 | } else { 116 | if (_this.scaleFingers instanceof Array) { 117 | if (_this.scaleHands == hl && _this.scaleFingers[0] <= fl && fl <= _this.scaleFingers[1]) return true; 118 | } else { 119 | if (_this.scaleHands == hl && _this.scaleFingers == fl) return true; 120 | }; 121 | }; 122 | break; 123 | case 'pan': 124 | if (_this.panHands instanceof Array) { 125 | if (_this.panFingers instanceof Array) { 126 | if (_this.panHands[0] <= hl && hl <= _this.panHands[1] && _this.panFingers[0] <= fl && fl <= _this.panFingers[1]) return true; 127 | } else { 128 | if (_this.panHands[0] <= hl && hl <= _this.panHands[1] && _this.panFingers == fl) return true; 129 | }; 130 | } else { 131 | if (_this.panFingers instanceof Array) { 132 | if (_this.panHands == hl && _this.panFingers[0] <= fl && fl <= _this.panFingers[1]) return true; 133 | } else { 134 | if (_this.panHands == hl && _this.panFingers == fl) return true; 135 | }; 136 | }; 137 | break; 138 | }; 139 | 140 | return false; 141 | }; 142 | 143 | this.hand = function(frame, action) { 144 | var hds = frame.hands; 145 | 146 | if (hds.length > 0) { 147 | if (hds.length == 1) { 148 | return hds[0]; 149 | } else if (hds.length == 2) { 150 | var lh, rh; 151 | if (hds[0].palmPosition[0] < hds[1].palmPosition[0]) { 152 | lh = hds[0]; 153 | rh = hds[1]; 154 | } else { 155 | lh = hds[1]; 156 | rh = hds[0]; 157 | } 158 | switch(action) { 159 | case 'rotate': 160 | if (_this.rotateRightHanded) { 161 | return rh; 162 | } else { 163 | return lh; 164 | }; 165 | case 'scale': 166 | if (_this.scaleRightHanded) { 167 | return rh; 168 | } else { 169 | return lh; 170 | }; 171 | case 'pan': 172 | if (_this.panRightHanded) { 173 | return rh; 174 | } else { 175 | return lh; 176 | }; 177 | }; 178 | }; 179 | }; 180 | 181 | return false; 182 | }; 183 | 184 | this.position = function(frame, action) { 185 | // assertion: if `...HandPosition` is false, then `...Fingers` needs to be 1 or [1, 1] 186 | var h; 187 | switch(action) { 188 | case 'rotate': 189 | h = _this.hand(frame, 'rotate'); 190 | return (_this.rotateHandPosition 191 | ? (_this.rotateStabilized ? h.stabilizedPalmPosition : h.palmPosition) 192 | : (_this.rotateStabilized ? frame.pointables[0].stabilizedTipPosition : frame.pointables[0].tipPosition) 193 | ); 194 | case 'scale': 195 | h = _this.hand(frame, 'scale'); 196 | return (_this.scaleHandPosition 197 | ? (_this.scaleStabilized ? h.stabilizedPalmPosition : h.palmPosition) 198 | : (_this.scaleStabilized ? frame.pointables[0].stabilizedTipPosition : frame.pointables[0].tipPosition) 199 | ); 200 | case 'pan': 201 | h = _this.hand(frame, 'pan'); 202 | return (_this.panHandPosition 203 | ? (_this.panStabilized ? h.stabilizedPalmPosition : h.palmPosition) 204 | : (_this.panStabilized ? frame.pointables[0].stabilizedTipPosition : frame.pointables[0].tipPosition) 205 | ); 206 | }; 207 | }; 208 | 209 | // methods 210 | this.rotateObject = function(frame) { 211 | if (_this.rotateEnabled && _this.applyGesture(frame, 'rotate')) { 212 | // rotate around axis in xy-plane which is orthogonal to camera vector 213 | var y = _this.position(frame, 'rotate')[1]; 214 | if (!_rotateYLast) _rotateYLast = y; 215 | var yDelta = y - _rotateYLast; 216 | // TODO: apply correct rotation to object 217 | // 218 | // var t = new THREE.Vector3().subVectors(_this.camera.position, _this.object.position); 219 | // angleDelta = _this.rotateTransform(yDelta); 220 | // newAngle = t.angleTo(new THREE.Vector3(0, 1, 0)) + angleDelta; 221 | // if (_this.rotateMin < newAngle && newAngle < _this.rotateMax) { 222 | // var n = new THREE.Vector3(t.z, 0, -t.x).normalize(); 223 | // var rotationMatrix = new THREE.Matrix4(); 224 | // rotationMatrix.makeRotationAxis(n, angleDelta); 225 | // rotationMatrix.multiply(_this.object.matrix); 226 | // _this.object.rotation.setFromRotationMatrix(rotationMatrix, _this.camera.rotation.order); 227 | // }; 228 | 229 | // rotate around y-axis 230 | var x = _this.position(frame, 'rotate')[0]; 231 | if (!_rotateXLast) _rotateXLast = x; 232 | var xDelta = x - _rotateXLast; 233 | _this.object.rotation.y += _this.rotateTransform(xDelta); 234 | 235 | _rotateYLast = y; 236 | _rotateXLast = x; 237 | _scaleZLast = null; 238 | _panXLast = null; 239 | _panYLast = null; 240 | _panZLast = null; 241 | } else { 242 | _rotateYLast = null; 243 | _rotateXLast = null; 244 | }; 245 | }; 246 | 247 | this.scaleObject = function(frame) { 248 | if (_this.scaleEnabled && _this.applyGesture(frame, 'scale')) { 249 | var z = _this.position(frame, 'scale')[2]; 250 | if (!_scaleZLast) _scaleZLast = z; 251 | var zDelta = z - _scaleZLast; 252 | scaleDelta = _this.scaleTransform(zDelta); 253 | var newScale = _this.object.scale.x + scaleDelta; 254 | if (_this.scaleMin < newScale && newScale < _this.scaleMax) { 255 | _this.object.scale = new THREE.Vector3(newScale, newScale, newScale); 256 | }; 257 | 258 | _scaleZLast = z; 259 | _rotateXLast = null; 260 | _rotateYLast = null; 261 | _panXLast = null; 262 | _panYLast = null; 263 | _panZLast = null; 264 | } else { 265 | _scaleZLast = null; 266 | }; 267 | }; 268 | 269 | this.panObject = function(frame) { 270 | if (_this.panEnabled && _this.applyGesture(frame, 'pan')) { 271 | var x = _this.position(frame, 'pan')[0]; 272 | var y = _this.position(frame, 'pan')[1]; 273 | var z = _this.position(frame, 'pan')[2]; 274 | if (!_panXLast) _panXLast = x; 275 | if (!_panYLast) _panYLast = y; 276 | if (!_panZLast) _panZLast = z; 277 | var xDelta = x - _panXLast; 278 | var yDelta = y - _panYLast; 279 | var zDelta = z - _panZLast; 280 | 281 | var v = _this.camera.localToWorld(new THREE.Vector3(_this.panTransform(xDelta), _this.panTransform(yDelta), _this.panTransform(zDelta))); 282 | v.sub(_this.camera.position); 283 | _this.object.position.add(v); 284 | 285 | _panXLast = x; 286 | _panYLast = y; 287 | _panZLast = z; 288 | _rotateXLast = null; 289 | _rotateYLast = null; 290 | _scaleZLast = null; 291 | } else { 292 | _panXLast = null; 293 | _panYLast = null; 294 | _panZLast = null; 295 | }; 296 | }; 297 | 298 | this.update = function(frame) { 299 | if (_this.enabled) { 300 | _this.rotateObject(frame); 301 | _this.scaleObject(frame); 302 | _this.panObject(frame); 303 | }; 304 | }; 305 | }; -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | threeleapcontrols 2 | ================= 3 | 4 | ## Introduction 5 | 6 | [Three.js](http://threejs.org) provides several control classes in order to interact with your 3D world. 7 | They are located under `three.js/examples/js/controls` in your Three.js directory. 8 | With **threeleapcontrols** you can use your leap motion controller to rotate, zoom/scale and pan 9 | any camera or object in your 3D scene. 10 | 11 | ## Requirements 12 | 13 | - a [leap motion](http://leapmotion.com) controller 14 | - [leapjs](http://js.leapmotion.com) (javascript sdk for leap motion controller) 15 | - [Three.js](http://threejs.org) (javascript library for creating and displaying 3D computer graphics on a browser) 16 | - a browser which supports WebGL, e.g. Google Chrome 17 | 18 | ## Showcase 19 | 20 | Check out the example file `example.html` and/or see it in action [here](http://youtu.be/SQDAa-cqlrA). 21 | 22 | ## Usage 23 | 24 | First, you load the necessary javascript files in your HTML document 25 | ```html 26 | 27 | 28 | 29 | ``` 30 | 31 | You create a `scene`, a `camera` and a `renderer` with Three.js. 32 | Then connect your `camera` of your `scene` with leap camera controls by setting 33 | 34 | ```javascript 35 | cameraControls = new THREE.LeapCameraControls(camera); 36 | ``` 37 | 38 | In your `Leap.loop` you need to call the `update` method on `frame`. After that it is necessary to `render` 39 | again. 40 | 41 | ```javascript 42 | Leap.loop(function(frame){ 43 | // maybe some modifications to your scene 44 | // ... 45 | 46 | cameraControls.update(frame); // rotating, zooming & panning 47 | renderer.render(scene, camera); 48 | }); 49 | ``` 50 | 51 | In order to `rotate`, `scale` and `pan` an arbitrary object in your scene, load the leap object controls 52 | 53 | ```html 54 | 55 | ``` 56 | and then connect the `camera` and your object, e.g. a `cube` by 57 | 58 | ```javascript 59 | cubeControls = new THREE.LeapObjectControls(camera, cube); 60 | ``` 61 | 62 | The corresponding `Leap.loop` looks like 63 | 64 | ```javascript 65 | Leap.loop(function(frame){ 66 | // maybe some modifications to your scene 67 | // ... 68 | 69 | cubeControls.update(frame); // rotating, scaling & panning 70 | renderer.render(scene, camera); 71 | }); 72 | ``` 73 | **Note**: Rotating objects with `LeapObjectControls` is work in progress and not yet finished! 74 | 75 | ### Configuration 76 | 77 | There are several options for your camera actions `rotate`, `zoom` and `pan` available. 78 | Here, we are setting the `pan` options (you can set the same attributes for rotating and panning): 79 | 80 | ```javascript 81 | controls.panEnabled = true; 82 | controls.panSpeed = 1.0; 83 | controls.panHands = 2; 84 | controls.panFingers = [6, 12]; 85 | controls.panRightHanded = true; // right-handed 86 | controls.panHandPosition = true; // palm position used 87 | controls.panStabilized = true; // stabilized palm position used 88 | ``` 89 | 90 | You can disable panning by setting `panEnabled` to `false`. Increase or decrease the speed of panning by adjusting 91 | `panSpeed`. You can set the number of hands with option `panHands`, i.e. the gesture is only triggered if the number of hands over your leap is equal to 92 | the specified `panHands`. It is possible to use a range of numbers (array of length 2 with integers), e.g. if `[1, 2]` is given, panning will be done, if one or two hands 93 | are used. The same goes for `panFingers`. If you set `panHands` to 2, then you can specify via `panRightHanded`, which hand will be used for controlling the camera. If you set `panFingers` to 1 or `[1, 1]` and `panHandPosition` to `false`, then the position of your finger tip will be used (instead of the position of your palm). If you set `panStabilized` to true the stabilized palm or finger tip position is used. 94 | 95 | By default vertical rotating is bounded to a range of π, meaning the angle between the camera-to-target vector and the y-axis is greater than 0 and less than π. You can modify the range by setting `rotateMin` and `rotateMax`. Horizontal rotating is not limited. 96 | 97 | You can set the minimum and maximum distances for zooming with `zoomMin` and `zoomMax`. 98 | 99 | The default values are 100 | 101 | ```javascript 102 | // rotation 103 | this.rotateEnabled = true; 104 | this.rotateSpeed = 1.0; 105 | this.rotateHands = 1; 106 | this.rotateFingers = [2, 3]; 107 | this.rotateRightHanded = true; 108 | this.rotateHandPosition = true; 109 | this.rotateStabilized = false; 110 | this.rotateMin = 0; 111 | this.rotateMax = Math.PI; 112 | 113 | // zoom 114 | this.zoomEnabled = true; 115 | this.zoomSpeed = 1.0; 116 | this.zoomHands = 1; 117 | this.zoomFingers = [4, 5]; 118 | this.zoomRightHanded = true; 119 | this.zoomHandPosition = true; 120 | this.zoomStabilized = false; 121 | this.zoomMin = _this.camera.near; 122 | this.zoomMax = _this.camera.far; 123 | 124 | // pan 125 | this.panEnabled = true; 126 | this.panSpeed = 1.0; 127 | this.panHands = 2; 128 | this.panFingers = [6, 12]; 129 | this.panRightHanded = true; 130 | this.panHandPosition = true; 131 | this.panStabilized = false; 132 | ``` 133 | 134 | In your leap object controls the zoom options are scale options, i.e. `zoomEnabled` will be `scaleEnabled`, etc.. -------------------------------------------------------------------------------- /css/style.css: -------------------------------------------------------------------------------- 1 | body { 2 | font-family: 'Fauna One', serif; 3 | font-size: 12px; 4 | cursor: none; 5 | } 6 | 7 | h3 {font-weight: normal;} 8 | 9 | a {color: #ff0000;} 10 | 11 | #info { 12 | position: absolute; 13 | width: 800px; 14 | margin-left: -400px; 15 | left: 50%; 16 | text-align: center; 17 | overflow: hidden; 18 | z-index: 2; 19 | } 20 | 21 | #container { 22 | position: absolute; 23 | display: block; 24 | height: auto; 25 | width: auto; 26 | top: 0; 27 | left: 0; 28 | right: 0; 29 | bottom: 0; 30 | margin: 5px; 31 | overflow: hidden; 32 | border: 1px solid #cccccc; 33 | z-index: 0; 34 | } 35 | 36 | canvas { 37 | display: block; 38 | margin: auto; 39 | width: 100%; 40 | } 41 | 42 | #cursor { 43 | position: absolute; 44 | left: -1000px; 45 | top: -1000px; 46 | z-index: 1; 47 | width: 9px; 48 | height: 9px; 49 | background-color: #ffffff; 50 | border-radius: 6px; 51 | -moz-border-radius: 6px; 52 | -webkit-border-radius: 6px; 53 | border: 1px solid #ff0000; 54 | } -------------------------------------------------------------------------------- /example.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | Three.js ・ Leap Controls 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 249 | 250 | 251 | 252 |
253 |

threeleapcontrols ・ Leap Controls for Three.js

254 | 255 |

Camera & Object Controls

256 | 257 | ROTATING ➞ 1 Hand & 2-3 Fingers ・ ZOOMING/SCALING ➞ 1 Hand & 4-5 Fingers ・ PANNING ➞ 2 Hands & 6-10 Fingers 258 | 259 |

Switch between Camera & Object Mode

260 | 261 | SWITCHING ➞ 1 Hand & 1 Finger & Choose object or nothing 262 |
263 |
264 |
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