<script >Python and the PPG global variable? 2005-04-22 - By Bernard Lebel
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Hi Nick,
Here is an example of a ppg item in Python:
# Create custom pset
oProp = xsi.activesceneroot.addproperty( 'CustomProperty', False,
'ColorPicker' )
# Create color parameters
oProp.addparameter3( 'red', c.siDouble )
oProp.addparameter3( 'green', c.siDouble )
oProp.addparameter3( 'blue', c.siDouble )
oProp.addparameter3( 'alpha', c.siDouble )
# Provide layout to pset
oLayout = oProp.ppglayout
# Add widget
oColor = oLayout.addcolor( 'red', 'red', True )
oColor.setattribute( 'NoLabel', True )
Hope this helps
Bernard
Bernard Lebel wrote:
>Is PPG indeed defined somewhere? If so, where?
>
>Perhaps you are running into a scope problem, wich is critical in
>Python. Keep in mind that a name assigned on the wrong scope will
>prevent it from being usable in other scopes.
>For instance, if you run a command that assigns a name a the top level
>(a global for the entire script), this global will not be accessible
>outside this file unless you import the file as a module and then
>fetch the variable by name qualification (ie: myvariable =
>modulename.variablename).
>
>Normally functions inside a module can access all global names from
>that same module, but not from other functions, unless all these
>functions are nested into another function and the name is assigned in
>that one. The only way to make a name global from a function is to
>declare it first as global (with the global statement), then assign it
>to a value.
>
>
>Cheers
>Bernard
>
>
>On 4/22/05, Nick <nick.petit@(protected)> wrote:
>
>
>>I haven't seen any docs or examples of creating dynamic ppgs done in
>>Python but I'm sure it must be feasable... so far I can't seem to get
>>the PPG global variable to work with the OnChange callback... I'm
>>probably doing this entirely wrong as I'm still fumbling around in the
>>dark, but this works in jscript and in vbs but I can't seem to make it
>>work in python...
>>
>>olayout.Logic = str(OnInit()) + \
>> str(Cons_OnChanged())
>>
>># then I define my functions
>>
>>def OnInit(opset):
>> olayout = PPG.PPGLayout
>>
>>This keeps on returning this error:
>>
>>#ERROR : Traceback (most recent call last):
>># File "<Script Block >", line 100, in ?
>># PPGCreator()
>># File "<Script Block >", line 38, in PPGCreator
>># olayout.Logic = str(OnInit(opset)) + str(Cons_OnChanged(opset))
>># File "<Script Block >", line 41, in OnInit
>># olayout = PPG.PPGLayout
>>#NameError: global name 'PPG' is not defined
>># - [line 41]
>>
>>I can hack it in a very fugly way so it will work on init by passing
>>the functions the actual custom prop object as a variable, but after
>>it's been created this variable no longer exists in the logic section
>>and I'd rather not get it using a Dictionary.GetObject as it's just
>>not reliable enough. If someone could shed some light on where I've
>>gone wrong that would be really appreciated... :)
>>
>>Cheers!
>>Nick.
>>
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>
>
>
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