@Override
public void computeTransform(RigidBodyTransform currXform) {
update();
CameraMountInterface cameraMount = getCameraMount();
if (isMounted() && (cameraMount != null)) {
cameraMount.getTransformToCamera(currXform);
return;
}
positionOffset.set(getCamX(), getCamY(), getCamZ());
xAxis.set(getFixX(), getFixY(), getFixZ());
fixPointNode.translateTo(getFixX(), getFixY(), getFixZ());
xAxis.sub(positionOffset);
xAxis.normalize();
zAxis.set(0.0, 0.0, 1.0);
yAxis.cross(zAxis, xAxis);
zAxis.cross(xAxis, yAxis);
rotationMatrix.setColumn(0, xAxis);
rotationMatrix.setColumn(1, yAxis);
rotationMatrix.setColumn(2, zAxis);
currXform.setRotationAndZeroTranslation(rotationMatrix);
currXform.setTranslation(positionOffset);
currXform.normalizeRotationPart();
}
public void doMouseDraggedRight(double dx, double dy) {
// Elevate up and down
double delX0 = camX - fixX, delY0 = camY - fixY, delZ0 = camZ - fixZ;
v3d.set(delX0, delY0, delZ0);
// double offsetDistance = v3d.length();
t3d.setRotationYawAndZeroTranslation(-dx * rotate_camera_factor);
t3d.transform(v3d);
if (!isTracking || (!isTrackingX && !isTrackingY)) {
fixX = camX - v3d.getX();
fixY = camY - v3d.getY();
}
delX0 = camX - fixX;
delY0 = camY - fixY;
delZ0 = camZ - fixZ;
// v3d.set(delX0, delY0, delZ0);
rotVector.set(-1.0, 0.0, 0.0);
rotVector.cross(new Vector3d(0.0, 0.0, -1.0), v3d);
rotAxisAngle4d.set(rotVector, dy * rotate_camera_factor / 4.0);
t3d.setRotationAndZeroTranslation(rotAxisAngle4d);
t3d.transform(v3d);
if ((v3d.getX() * delX0 > 0.0) && (v3d.getY() * delY0 > 0.0)) {
if (!isTracking || (!isTrackingX && !isTrackingY)) {
fixX = camX - v3d.getX();
fixY = camY - v3d.getY();
}
if (!isTracking || !isTrackingZ) {
fixZ = camZ - v3d.getZ();
/*
* double factor = elevate_camera_factor * offsetDistance;
* //Math.abs(camZ-fixZ); if (factor < elevate_camera_factor) factor
* = elevate_camera_factor; fixZ = camZ - v3d.z + dy factor; //fixZ
* = camZ - v3d.z + dy * elevate_factor;
*/
}
}
// transformChanged(currXform);
}
public void doMouseDraggedLeft(double dx, double dy) {
// Rotate around fix point:
double delX0 = camX - fixX, delY0 = camY - fixY, delZ0 = camZ - fixZ;
v3d.set(delX0, delY0, delZ0);
// double offsetDistance = v3d.length();
t3d.setRotationYawAndZeroTranslation(-dx * rotate_factor);
t3d.transform(v3d);
if (!isDolly || (!isDollyX && !isDollyY)) {
camX = v3d.getX() + fixX;
camY = v3d.getY() + fixY;
}
delX0 = camX - fixX;
delY0 = camY - fixY;
delZ0 = camZ - fixZ;
// v3d.set(delX0, delY0, delZ0);
rotVector.cross(new Vector3d(0.0, 0.0, -1.0), v3d);
rotAxisAngle4d.set(rotVector, dy * rotate_factor / 4.0);
t3d.setRotationAndZeroTranslation(rotAxisAngle4d);
t3d.transform(v3d);
if ((v3d.getX() * delX0 > 0.0) && (v3d.getY() * delY0 > 0.0)) {
if (!isDolly || (!isDollyX && !isDollyY)) {
camX = v3d.getX() + fixX;
camY = v3d.getY() + fixY;
}
if (!isDolly || !isDollyZ) {
camZ = v3d.getZ() + fixZ;
/*
* double factor = elevate_factor * Math.abs(offsetDistance);
* //camZ-fixZ); if (factor < elevate_factor) factor =
* elevate_factor; //camZ = v3d.z + fixZ + dy * elevate_factor; camZ
* = v3d.z + fixZ + dy * factor;
*/
}
}
// transformChanged(currXform);
}
public void rotateAroundFix(double dx, double dy) {
double distanceFromCameraToFix =
Math.sqrt(Math.pow(camX - fixX, 2) + Math.pow(camY - fixY, 2) + Math.pow(camZ - fixZ, 2));
if (distanceFromCameraToFix > 1.0) {
dx /= distanceFromCameraToFix;
dy /= distanceFromCameraToFix;
}
double delX0 = camX - fixX, delY0 = camY - fixY, delZ0 = camZ - fixZ;
v3d.set(delX0, delY0, delZ0);
t3d.setRotationYawAndZeroTranslation(-dx * rotate_factor);
t3d.transform(v3d);
if (!isDolly || (!isDollyX && !isDollyY)) {
camX = v3d.getX() + fixX;
camY = v3d.getY() + fixY;
}
delX0 = camX - fixX;
delY0 = camY - fixY;
delZ0 = camZ - fixZ;
rotVector.cross(new Vector3d(0.0, 0.0, -1.0), v3d);
rotAxisAngle4d.set(rotVector, dy * rotate_factor / 4.0);
t3d.setRotationAndZeroTranslation(rotAxisAngle4d);
t3d.transform(v3d);
if ((v3d.getX() * delX0 > 0.0) && (v3d.getY() * delY0 > 0.0)) {
if (!isDolly || (!isDollyX && !isDollyY)) {
camX = v3d.getX() + fixX;
camY = v3d.getY() + fixY;
}
if (!isDolly || !isDollyZ) {
camZ = v3d.getZ() + fixZ;
}
}
}