def test_get_camera_non_standard_transform_node_type(self):
"""
Test getting a camera from a single half, transform or shape node.
This function also tests non-standard transform node types.
In this example we use 'mmMarkerGroupTransform' for the test.
GitHub issue #123.
"""
# Custom transform node type. GitHub issue #123.
custom_node_type = 'mmMarkerGroupTransform'
cam_tfm, cam_shp = self.create_camera(
'myCamera', tfm_node_type=custom_node_type)
# Must be a transform type.
inherited_types = maya.cmds.nodeType(cam_tfm, inherited=True) or []
self.assertIn('transform', inherited_types)
# Get from transform node.
x, y = camera_utils.get_camera(cam_tfm)
self.assertEqual(cam_tfm, x)
self.assertEqual(cam_shp, y)
# Get from shape node.
x, y = camera_utils.get_camera(cam_shp)
self.assertEqual(cam_tfm, x)
self.assertEqual(cam_shp, y)
return
def _find_camera_from_selection(sel):
cam = None
filtered_nodes = mmapi.filter_nodes_into_categories(sel)
cam_nodes = filtered_nodes['camera']
mkr_grp_nodes = filtered_nodes['markergroup']
mkr_nodes = filtered_nodes['marker']
# Check selected camera.
if len(cam_nodes) > 0:
cam_node = cam_nodes[0]
cam_tfm, cam_shp = camera_utils.get_camera(cam_node)
if cam_tfm is not None and cam_shp is not None:
cam = mmapi.Camera(transform=cam_tfm, shape=cam_shp)
if cam is not None and cam.is_valid():
return cam
# Check selected marker group.
if len(mkr_grp_nodes) > 0:
mkr_grp_node = mkr_grp_nodes[0]
mkr_grp = mmapi.MarkerGroup(node=mkr_grp_node)
cam = mkr_grp.get_camera()
if cam is not None and cam.is_valid():
return cam
# Check selected marker.
if len(mkr_nodes) > 0:
mkr_node = mkr_nodes[0]
mkr = mmapi.Marker(node=mkr_node)
cam = mkr.get_camera()
if cam is not None and cam.is_valid():
return cam
return None
def test_get_camera(self):
"""
Test getting a camera from a single half, transform or shape node.
"""
cam_tfm, cam_shp = self.create_camera('myCamera')
# Get from transform node.
x, y = camera_utils.get_camera(cam_tfm)
self.assertEqual(cam_tfm, x)
self.assertEqual(cam_shp, y)
# Get from shape node.
x, y = camera_utils.get_camera(cam_shp)
self.assertEqual(cam_tfm, x)
self.assertEqual(cam_shp, y)
return
def _get_active_or_selected_camera(cam_node_list):
active_cam_tfm = None
active_cam_shp = None
if len(cam_node_list) > 0:
cam_node = cam_node_list[0]
active_cam_tfm, active_cam_shp = camera_utils.get_camera(cam_node)
else:
model_editor = viewport_utils.get_active_model_editor()
if model_editor is not None:
active_cam_tfm, active_cam_shp = viewport_utils.get_viewport_camera(
model_editor)
return active_cam_tfm, active_cam_shp
def get_viewport_camera(model_editor):
"""
Get the camera from the model editor.
:param model_editor: The viewport model editor to get the camera from.
:type model_editor: str
:returns: Camera transform and camera shape nodes.
:rtype: (str, str) or (None, None)
"""
if model_editor is None:
msg = 'Cannot get camera, Model Editor is invalid! model_editor=%r'
LOG.warning(msg, model_editor)
cam = maya.cmds.modelEditor(model_editor, query=True, camera=True)
cam_tfm, cam_shp = camera_utils.get_camera(cam)
return cam_tfm, cam_shp
def main():
# Get selected camera node.
sel = maya.cmds.ls(selection=True, long=True, type='transform') or []
if len(sel) == 0:
sel += maya.cmds.ls(selection=True, long=True, type='camera') or []
if len(sel) != 1:
LOG.warn('Please select one camera: selection=%r', sel)
return
cam_tfm, cam_shp = camera_utils.get_camera(sel[0])
if cam_tfm is None or cam_shp is None:
LOG.warn('Selected node is not a camera, please select one camera.')
return
# Get the connected image planes
# If more than one image plane exists, print a warning.
img_pl_shps = camera_utils.get_image_plane_shapes_from_camera(
cam_tfm, cam_shp)
img_pl_shp = None
if len(img_pl_shps) == 0:
msg = 'No image plane nodes found.'
LOG.warn(msg)
elif len(img_pl_shps) > 1:
img_pl_shp = img_pl_shps[0]
msg = 'More than one image plane was found, using first image plane.'
LOG.warn(msg)
else:
# Exactly one image plane node.
img_pl_shp = img_pl_shps[0]
# Query plate data from the image plane
test_disk = const.TEST_DISK
frame_range = time_utils.get_maya_timeline_range_inner()
plate_data = {}
if img_pl_shp is not None:
plate_data = lib.query_plate_data(cam_tfm, cam_shp, img_pl_shp,
test_disk)
# Calculate the frame range.
image_file_path = plate_data.get('file_path')
if image_file_path is not None:
frame_range = lib.get_frame_range_from_file_pattern(
image_file_path, fallback_range=frame_range)
assert isinstance(frame_range, (time_utils.FrameRange, tuple))
frames = list(range(frame_range.start, frame_range.end + 1))
assert len(frames) > 0
# Node must be transform and have a camera shape node to be valid.
rotate_order = const.ROTATE_ORDER
with tools_utils.tool_context(use_undo_chunk=False,
use_dg_evaluation_mode=True,
disable_viewport=True):
cam_data = lib.query_camera_data(cam_tfm, cam_shp, frames,
rotate_order, test_disk)
# Generate file contents.
data_str = lib.generate(cam_data, plate_data, frame_range)
# Write out file.
file_path = lib.write_temp_file(data_str)
if not os.path.isfile(file_path):
msg = 'Failed to write temp file. path=%r'
LOG.error(msg, file_path)
return
msg = 'Successfully wrote to temporary file. path=%r'
LOG.info(msg, file_path)
# Set Copy/Paste Clipboard buffer.
try:
clippy = QtGui.QClipboard()
clippy.setText(file_path)
except Exception as e:
msg = 'Could not set file path on clipboard. path=%r'
LOG.warn(msg, file_path)
LOG.info(str(e))
return file_path
def create_screen_space_motion_trail(cam,
tfm,
name=None,
use_frame_range=None,
pre_frame=None,
post_frame=None,
start_frame=None,
end_frame=None,
increment=None):
"""
Create a Screen-Space Maya Locator that may be solved in Screen XYZ.
"""
assert isinstance(cam, pycompat.TEXT_TYPE)
assert isinstance(tfm, pycompat.TEXT_TYPE)
if name is None:
name = tfm.rpartition('|')[-1]
frame_range = time_utils.get_maya_timeline_range_inner()
if use_frame_range is None:
use_frame_range = const.USE_FRAME_RANGE_DEFAULT
if pre_frame is None:
pre_frame = const.PRE_FRAME_DEFAULT
if post_frame is None:
post_frame = const.POST_FRAME_DEFAULT
if start_frame is None:
start_frame = frame_range.start
if end_frame is None:
end_frame = frame_range.end
if increment is None:
if use_frame_range:
increment = const.FRAME_RANGE_INCREMENT_DEFAULT
else:
increment = const.PER_FRAME_INCREMENT_DEFAULT
tfm_attrs = [
'translateX', 'translateY', 'translateZ', 'rotateX', 'rotateY',
'rotateZ', 'scaleX', 'scaleY', 'scaleZ'
]
maya.cmds.loadPlugin('matrixNodes', quiet=True)
cam_tfm, cam_shp = camera_utils.get_camera(cam)
# Create temporary group
temp_grp_name = const.TEMP_OBJECT_NAME
temp_grp = temp_grp_name
if not maya.cmds.objExists(temp_grp):
temp_grp = maya.cmds.createNode('transform', name=temp_grp_name)
maya.cmds.setAttr(temp_grp + '.visibility', False)
# Create Temporary transform node to calculate motion path on.
temp_tfm_name = name + '_TEMP_NULL'
temp_tfm_name = mmapi.find_valid_maya_node_name(temp_tfm_name)
temp_tfm = maya.cmds.createNode('transform',
parent=temp_grp,
name=temp_tfm_name)
# Create trail group under the camera.
trail_handle_grp_name = const.MOTION_PATH_GROUP_NAME
trail_handle_grp = cam_tfm + '|' + trail_handle_grp_name
if not maya.cmds.objExists(trail_handle_grp):
trail_handle_grp = maya.cmds.createNode('transform',
name=trail_handle_grp_name,
parent=cam_tfm)
# Trails are non-selectable by default.
plug_name = trail_handle_grp + '.template'
maya.cmds.setAttr(plug_name, True)
# Lock transform attributes.
for attr in tfm_attrs:
plug_name = trail_handle_grp + '.' + attr
maya.cmds.setAttr(plug_name, lock=True)
# Matrix Multiply
mult_mat = maya.cmds.createNode('multMatrix')
src = tfm + '.worldMatrix[0]'
dst = mult_mat + '.matrixIn[0]'
maya.cmds.connectAttr(src, dst)
src = cam_tfm + '.worldInverseMatrix[0]'
dst = mult_mat + '.matrixIn[1]'
maya.cmds.connectAttr(src, dst)
# Decompose Matrix
decompose = maya.cmds.createNode('decomposeMatrix')
src = mult_mat + '.matrixSum'
dst = decompose + '.inputMatrix'
maya.cmds.connectAttr(src, dst)
src = decompose + '.outputTranslate'
dst = temp_tfm + '.translate'
maya.cmds.connectAttr(src, dst)
# Lock the temporary transform node.
for attr in tfm_attrs:
plug_name = temp_tfm + '.' + attr
maya.cmds.setAttr(plug_name, lock=True)
# Create Motion Trail
update_mode = 'always'
handle_tfm, handle_shp, trail_shp = create_motion_trail_setup(
temp_tfm,
trail_handle_grp,
name,
use_frame_range,
start_frame,
end_frame,
pre_frame,
post_frame,
increment,
update_mode,
)
return handle_tfm, handle_shp, trail_shp
