void
dxJointHinge2::getInfo1( dxJoint::Info1 *info )
{
info->m = 4;
info->nub = 4;
// see if we're powered or at a joint limit for axis 1
limot1.limit = 0;
if (( limot1.lostop >= -M_PI || limot1.histop <= M_PI ) &&
limot1.lostop <= limot1.histop )
{
dReal angle = measureAngle();
limot1.testRotationalLimit( angle );
}
if ( limot1.limit || limot1.fmax > 0 ) info->m++;
// see if we're powering axis 2 (we currently never limit this axis)
limot2.limit = 0;
if ( limot2.fmax > 0 ) info->m++;
}
bool UVRotateTool::doMouseDrag(const InputState& inputState) {
assert(m_helper.valid());
Model::BrushFace* face = m_helper.face();
const Plane3& boundary = face->boundary();
const Ray3& pickRay = inputState.pickRay();
const FloatType curPointDistance = pickRay.intersectWithPlane(boundary.normal, boundary.anchor());
const Vec3 curPoint = pickRay.pointAtDistance(curPointDistance);
const Mat4x4 toFaceOld = face->toTexCoordSystemMatrix(Vec2f::Null, Vec2f::One, true);
const Mat4x4 toWorld = face->fromTexCoordSystemMatrix(Vec2f::Null, Vec2f::One, true);
const Vec2f curPointInFaceCoords(toFaceOld * curPoint);
const float curAngle = measureAngle(curPointInFaceCoords);
const float angle = curAngle - m_initalAngle;
const float snappedAngle = Math::correct(snapAngle(angle), 4, 0.0f);
const Vec2f oldCenterInFaceCoords = m_helper.originInFaceCoords();
const Vec3 oldCenterInWorldCoords = toWorld * Vec3(oldCenterInFaceCoords);
Model::ChangeBrushFaceAttributesRequest request;
request.setRotation(snappedAngle);
MapDocumentSPtr document = lock(m_document);
document->setFaceAttributes(request);
// Correct the offsets and the position of the rotation center.
const Mat4x4 toFaceNew = face->toTexCoordSystemMatrix(Vec2f::Null, Vec2f::One, true);
const Vec2f newCenterInFaceCoords(toFaceNew * oldCenterInWorldCoords);
m_helper.setOrigin(newCenterInFaceCoords);
const Vec2f delta = (oldCenterInFaceCoords - newCenterInFaceCoords) / face->scale();
const Vec2f newOffset = (face->offset() + delta).corrected(4, 0.0f);
request.clear();
request.setOffset(newOffset);
document->setFaceAttributes(request);
return true;
}
bool UVRotateTool::doStartMouseDrag(const InputState& inputState) {
assert(m_helper.valid());
if (!inputState.modifierKeysPressed(ModifierKeys::MKNone) ||
!inputState.mouseButtonsPressed(MouseButtons::MBLeft))
return false;
const Model::PickResult& pickResult = inputState.pickResult();
const Model::Hit& angleHandleHit = pickResult.query().type(AngleHandleHit).occluded().first();
if (!angleHandleHit.isMatch())
return false;
const Model::BrushFace* face = m_helper.face();
const Mat4x4 toFace = face->toTexCoordSystemMatrix(Vec2f::Null, Vec2f::One, true);
const Vec2f hitPointInFaceCoords(toFace * angleHandleHit.hitPoint());
m_initalAngle = measureAngle(hitPointInFaceCoords) - face->rotation();
MapDocumentSPtr document = lock(m_document);
document->beginTransaction("Rotate Texture");
return true;
}