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Merge pull request #3046 from Atlante45/more_intuitive_rotation_UI

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More intuitive rotation UI
This commit is contained in:
Brad Hefta-Gaub 2014-06-18 15:04:34 -07:00
commit 4699a8011c
1 changed files with 16 additions and 6 deletions
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22
examples/editModels.js
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@ -974,17 +974,27 @@ function mouseMoveEvent(event) {
var pixelPerDegrees = windowDimensions.y / (1 * 360); // the entire height of the window allow you to make 2 full rotations
var STEP = 15;
var delta = Math.floor((event.x - mouseLastPosition.x) / pixelPerDegrees);
//compute delta in pixel
var cameraForward = Quat.getFront(Camera.getOrientation());
var rotationAxis = (!zIsPressed && xIsPressed) ? { x: 1, y: 0, z: 0 } :
(!zIsPressed && !xIsPressed) ? { x: 0, y: 1, z: 0 } :
{ x: 0, y: 0, z: 1 };
rotationAxis = Vec3.multiplyQbyV(selectedModelProperties.modelRotation, rotationAxis);
var orthogonalAxis = Vec3.cross(cameraForward, rotationAxis);
var mouseDelta = { x: event.x - mouseLastPosition
.x, y: mouseLastPosition.y - event.y, z: 0 };
var transformedMouseDelta = Vec3.multiplyQbyV(Camera.getOrientation(), mouseDelta);
var delta = Math.floor(Vec3.dot(transformedMouseDelta, Vec3.normalize(orthogonalAxis)) / pixelPerDegrees);
var STEP = 15;
if (!event.isShifted) {
delta = Math.floor(delta / STEP) * STEP;
delta = Math.round(delta / STEP) * STEP;
}
var rotation = Quat.fromVec3Degrees({
x: (!zIsPressed && xIsPressed) ? delta : 0, // z is pressed
y: (!zIsPressed && !xIsPressed) ? delta : 0, // x is pressed
z: (zIsPressed && !xIsPressed) ? delta : 0 // neither is pressed
x: (!zIsPressed && xIsPressed) ? delta : 0, // x is pressed
y: (!zIsPressed && !xIsPressed) ? delta : 0, // neither is pressed
z: (zIsPressed && !xIsPressed) ? delta : 0 // z is pressed
});
rotation = Quat.multiply(selectedModelProperties.oldRotation, rotation);