light9 Changeset - 7ccf1d10804b

Changeset - 7ccf1d10804b

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drewp - 21 years ago 2003-07-08 09:19:10

lots more notes

1 file changed with 108 insertions and 5 deletions:

flax/Node.py

108

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flax/Node.py

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@@ @@ -3,13 +3,13 @@ @@
 # The magic value
 NoChange = "NoChange"
 class NodeType:
     def __init__(self, iports=None, oports=None):
         make_attributes_from_args('iports', 'oports')
     def process(self):
+    def process(self,iports,oports):
         pass
         # TODO: handle NoChange stuff
 class AddNode(NodeType):
     """Adds two nodes together"""
     def __init__(self):
@@ @@ -31,16 +31,16 @@ class SumNode(NodeType): @@
         ports.out1 = val
 class FadeNode(NodeType):
     """Provides a UI scaler to let you fade a value"""
     def __init__(self):
         NodeType.__init__(self, iports={'in1' : Port,
                                         'scale1' : Port},
                                 oports={'out1' : Port},
     def process(self, ports):
         NodeType.__init__(self, iports={'in1' : Port(),
                                         'scale1' : Port()},
                                 oports={'out1' : Port()},
     def process(self, iports, oports):
         ports.out1 = ports.in1 * ports.scale1
 class FadeConstellation(Constellation):
     """This somehow describes the following:
     [      ]    [ UI.Scale ]
@@ @@ -72,6 +72,109 @@ class FadeConstellation(Constellation): @@
+      |
   \ - - - - - - - - - - - -- - - /
+      |
       | out
+      |
     """
 Persistence
 node instance saves:
     node name, id, and such
     input ports:
         any port details
         what the port connects to
     values:
         maybe UI.Scale level
         maybe group contents
 p=InputPort(node=self,minconns=1,maxconns=2) # an input port to this node
 p.connect(othernode)
 print p.connections()
 p.connect(yetanother)
 op=OutputPort(node=self) # an output port
 print op.connections() # lists all the nodes that call us an input node
 op.connect(n) # calls n.connect(self)
 Ports
     Port: "scalar"
     MultiPort: "array of Port"
     ^ all wrong
     Ports II:
         min/max number of connections
            (failure to fit these numbers means port is "deactivated")
         "Normal" ports are min=1, max=1
         "Multiports" are min=0, max=None
         "Binary" ports are min=2, max=2
         oh yeah, there are two totally different types of ports
         Input ports: min/max numbers of connections
            store current connections
         Output ports: nothing
            store nothing!
 fake node persistence for subtract node
 <!-- "my subtract" is a unique id -->
 <!-- drew: there is no such thing as a subtract group -->
 <node name="my subtract" type="math.Add">
   <inputs>
     <port name="in1">
        <noderef name="node I"/>
        <noderef name="node II"/>
     </port>
   </inputs>
   <state>
   </state>
 </node>
 <node name="the group" type="group">
   <!-- all of the port names of the group are being made up right
   here- a group has no preset inputs or outputs-->
   <inputs>
     <port name="group-in 1">
       <noderef name="node5"/>
       <noderef name="node6"/>
     </port>
   </inputs>
   <state>
     <children>
       <noderef name="node3">
         <connect localPort="in1" groupPort="group-in1"/>
       </noderef>
       <noderef name="node4">
         <connect localPort="in1" groupPort="group-in1"/>
         <connect localPort="out1" groupPort="theoutput"/>
       </noderef>
     </children>
   </state>
 </node>
 <node name="preset value" type="source.Scalar">
   <!-- no inputs, node has output only -->
   <state>
     <value>8.3</value>
     <minvalue>0</minvalue>
     <maxvalue>100</maxvalue>
     <gui>
       <slider res=".1" height="200" bgcolor="red"/>
       <priority>very high</priority>
       <xpos>395</xpos>
       <ypos>21</ypos>
     </gui>
   </state>
 </node>

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