diff options
Diffstat (limited to 'silx/gui/plot3d/scene/viewport.py')
| -rw-r--r-- | silx/gui/plot3d/scene/viewport.py | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/silx/gui/plot3d/scene/viewport.py b/silx/gui/plot3d/scene/viewport.py index 83cda43..72e1ea3 100644 --- a/silx/gui/plot3d/scene/viewport.py +++ b/silx/gui/plot3d/scene/viewport.py @@ -314,6 +314,9 @@ class Viewport(event.Notifier): (e.g., if spanning behind the viewpoint with perspective projection). """ bounds = self.scene.bounds(transformed=True) + if bounds is None: + bounds = numpy.array(((0., 0., 0.), (1., 1., 1.)), + dtype=numpy.float32) bounds = self.camera.extrinsic.transformBounds(bounds) if isinstance(self.camera.intrinsic, transform.Perspective): @@ -337,7 +340,11 @@ class Viewport(event.Notifier): It updates the camera position and depth extent. Camera sight direction and up are not affected. """ - self.camera.resetCamera(self.scene.bounds(transformed=True)) + bounds = self.scene.bounds(transformed=True) + if bounds is None: + bounds = numpy.array(((0., 0., 0.), (1., 1., 1.)), + dtype=numpy.float32) + self.camera.resetCamera(bounds) def orbitCamera(self, direction, angle=1.): """Rotate the camera around center of the scene. @@ -347,6 +354,9 @@ class Viewport(event.Notifier): :param float angle: he angle in degrees of the rotation. """ bounds = self.scene.bounds(transformed=True) + if bounds is None: + bounds = numpy.array(((0., 0., 0.), (1., 1., 1.)), + dtype=numpy.float32) center = 0.5 * (bounds[0] + bounds[1]) self.camera.orbit(direction, center, angle) @@ -359,6 +369,9 @@ class Viewport(event.Notifier): :param float step: The ratio of data to step for each pan. """ bounds = self.scene.bounds(transformed=True) + if bounds is None: + bounds = numpy.array(((0., 0., 0.), (1., 1., 1.)), + dtype=numpy.float32) bounds = self.camera.extrinsic.transformBounds(bounds) center = 0.5 * (bounds[0] + bounds[1]) ndcCenter = self.camera.intrinsic.transformPoint( |