Do not zoom camera when changing view

When changing the view by clicking the axis helper, maintain the
current view camera zoom

Task-number: QDS-1274
Change-Id: Icb502bd70da1e6348be90a52885366393ea072c6
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>
This commit is contained in:
Mahmoud Badri
2019-11-27 15:48:51 +02:00
parent 811db1129c
commit de141661df
5 changed files with 15 additions and 14 deletions

View File

@@ -120,8 +120,8 @@ View3D {
onPressed: {
pick(mouse);
if (pickObj) {
axisHelperView.editCameraCtrl.fitObject(axisHelperView.selectedNode,
pickObj.cameraRotation);
axisHelperView.editCameraCtrl.focusObject(axisHelperView.selectedNode,
pickObj.cameraRotation, false);
} else {
mouse.accepted = false;
}

View File

@@ -45,11 +45,11 @@ Item {
property real _defaultCameraLookAtDistance: 0
property Camera _prevCamera: null
function fitObject(targetObject, rotation)
function focusObject(targetObject, rotation, updateZoom)
{
camera.rotation = rotation;
var newLookAtAndZoom = _generalHelper.fitObjectToCamera(
camera, _defaultCameraLookAtDistance, targetObject, view3d);
var newLookAtAndZoom = _generalHelper.focusObjectToCamera(
camera, _defaultCameraLookAtDistance, targetObject, view3d, _zoomFactor, updateZoom);
_lookAtPoint = newLookAtAndZoom.toVector3d();
_zoomFactor = newLookAtAndZoom.w;
}

View File

@@ -443,7 +443,7 @@ Window {
if (selected) {
var targetNode = viewWindow.selectedNodes.length > 0
? selectionBoxes[0].model : null;
cameraControl.fitObject(targetNode, editView.camera.rotation);
cameraControl.focusObject(targetNode, editView.camera.rotation, true);
}
}
}

View File

@@ -139,8 +139,9 @@ float GeneralHelper::zoomCamera(QQuick3DCamera *camera, float distance, float de
}
// Return value contains new lookAt point (xyz) and zoom factor (w)
QVector4D GeneralHelper::fitObjectToCamera(QQuick3DCamera *camera, float defaultLookAtDistance,
QQuick3DNode *targetObject, QQuick3DViewport *viewPort)
QVector4D GeneralHelper::focusObjectToCamera(QQuick3DCamera *camera, float defaultLookAtDistance,
QQuick3DNode *targetObject, QQuick3DViewport *viewPort,
float oldZoom, bool updateZoom)
{
if (!camera)
return QVector4D(0.f, 0.f, 0.f, 1.f);
@@ -189,11 +190,10 @@ QVector4D GeneralHelper::fitObjectToCamera(QQuick3DCamera *camera, float default
camera->setPosition(lookAt + newLookVector);
// Emprically determined algorithm for nice zoom
float newZoomFactor = qBound(.0001f, float(maxExtent / 700.), 10000.f);
float newZoomFactor = updateZoom ? qBound(.0001f, float(maxExtent / 700.), 10000.f) : oldZoom;
float cameraZoomFactor = zoomCamera(camera, 0, defaultLookAtDistance, lookAt, newZoomFactor, false);
return QVector4D(lookAt,
zoomCamera(camera, 0, defaultLookAtDistance, lookAt, newZoomFactor, false));
return QVector4D(lookAt, cameraZoomFactor);
}
void GeneralHelper::delayedPropertySet(QObject *obj, int delay, const QString &property,

View File

@@ -62,8 +62,9 @@ public:
Q_INVOKABLE float zoomCamera(QQuick3DCamera *camera, float distance,
float defaultLookAtDistance, const QVector3D &lookAt,
float zoomFactor, bool relative);
Q_INVOKABLE QVector4D fitObjectToCamera(QQuick3DCamera *camera, float defaultLookAtDistance,
QQuick3DNode *targetObject, QQuick3DViewport *viewPort);
Q_INVOKABLE QVector4D focusObjectToCamera(QQuick3DCamera *camera, float defaultLookAtDistance,
QQuick3DNode *targetObject, QQuick3DViewport *viewPort,
float oldZoom, bool updateZoom = true);
Q_INVOKABLE void delayedPropertySet(QObject *obj, int delay, const QString &property,
const QVariant& value);