Source Code for Module nukescripts.crop

 1  # Copyright (c) 2009 The Foundry Visionmongers Ltd.  All Rights Reserved. 
 2   
 3  import nuke 
 4  import nodes 
 5   
 6 -def autocrop(first=None, last=None, inc=None, layer="rgba"): 
 7    """Run the CurveTool's AutoCrop function on each selected node over the 
 8    specified frame range and channels. If the range values are None, the 
 9    project first_frame and last_frame are used; if inc is None, 1 is used. 
10    After execution, the CurveTool AutoCrop results are copied into a Crop 
11    node attached to each selected node.""" 
12   
13    # Sort out execute range 
14    root = nuke.root() 
15    if first is None: 
16      first = int(root.knob("first_frame").value()) 
17    if last is None: 
18      last = int(root.knob("last_frame").value()) 
19    if inc is None: 
20      inc = 1 
21   
22    # Remember original set of selected nodes...we'll need this 
23    original_nodes = nuke.selectedNodes() 
24   
25    # Deselect everything so we can add CurveTool nodes 
26    all_nodes = nuke.allNodes() 
27    for i in all_nodes: 
28      i.knob("selected").setValue(False) 
29   
30    for i in original_nodes: 
31      # Reselect originally selected nodes and create a CurveTool node, 
32      # which will automatically connect to the last selected. 
33      i.knob("selected").setValue(True) 
34      autocropper = nuke.createNode("CurveTool", 
35        '''operation 0 ROI {0 0 input.width input.height} Layer %s label "Processing Crop..." selected true''' % (str(layer), ), False) 
36   
37      # Execute the CurveTool node thru all the frames 
38      nuke.executeMultiple([autocropper,], ([first, last, inc],)) 
39   
40      # select the curvewriter 
41      autocropper.knob("selected").setValue(True) 
42   
43      # add crop node 
44      cropnode = nuke.createNode("Crop", "label AutoCrop", False) 
45   
46      # put the new data from the autocrop into the new crop 
47      cropbox = cropnode.knob("box"); 
48      autocropbox = autocropper.knob("autocropdata"); 
49      cropbox.copyAnimations(autocropbox.animations()) 
50   
51      # turn on the animated flag 
52      cropnode.knob("indicators").setValue(1) 
53   
54      # deselect everything 
55      all_nodes = nuke.allNodes() 
56      for j in all_nodes: 
57        j.knob("selected").setValue(False) 
58   
59      # select the curvewriter and delete it 
60      autocropper.knob("selected").setValue(True) 
61   
62      # delete the autocropper to make it all clean 
63      nodes.node_delete() 
64   
65      # deselect everything 
66      all_nodes = nuke.allNodes() 
67      for j in all_nodes: 
68        j.knob("selected").setValue(False) 
69   
70      # select the new crop 
71      cropnode.knob("selected").setValue(True) 
72   
73      # place it in a nice spot 
74      nuke.autoplace(cropnode) 
75   
76      # De-Select it 
77      cropnode.knob("selected").setValue(False) 
78