71 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			71 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
from lnx.logicnode.lnx_nodes import *
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import re
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class MathTermNode(LnxLogicTreeNode):
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    """Formula for symbolic Math"""
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    bl_idname = 'LNMathTermNode'
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    bl_label = 'Math Term'
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    lnx_version = 0
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    num_params: IntProperty(default=2, min=0)
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    property0: HaxeBoolProperty('property0', name='Resolve params', description='Resolve input param values/subterms for output term/transformations', default=False)
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    def __init__(self, *args, **kwargs):
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        super(MathTermNode, self).__init__(*args, **kwargs)
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        self.register_id()
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    def lnx_init(self, context):
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        # OUTPUTS:
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        self.add_output('LnxDynamicSocket', 'Math Term')
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        self.add_output('LnxDynamicSocket', 'Simplifyed')
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        self.add_output('LnxDynamicSocket', 'Derivate')
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        self.add_output('LnxFloatSocket', 'Result')
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        self.add_output('LnxStringSocket', 'Error')
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        self.add_output('LnxIntSocket', 'ErrorPos')
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        # INPUTS:
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        # HOW to setup a Tooltip here and how to put it above the param-add/remove-buttons into layout ?
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        self.add_input('LnxStringSocket', 'Math Term', default_value='a+b')
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        # two default parameters at start
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        self.add_input('LnxStringSocket', 'Param 0', default_value='a')
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        self.add_input('LnxDynamicSocket', 'Value / Term 0')
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        self.add_input('LnxStringSocket', 'Param 1', default_value='b')
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        self.add_input('LnxDynamicSocket', 'Value / Term 1')
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    def add_sockets(self):
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        self.add_input('LnxStringSocket', 'Name ' + str(self.num_params))
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        #self.add_input('LnxFloatSocket', 'Value ' + str(self.num_params))
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        self.add_input('LnxDynamicSocket', 'Value / Term ' + str(self.num_params))
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        self.num_params += 1
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    def remove_sockets(self):
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        if self.num_params > 0:
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            self.inputs.remove(self.inputs.values()[-1])
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            self.inputs.remove(self.inputs.values()[-1])
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            self.num_params -= 1
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    def draw_buttons(self, context, layout):
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        # Bind values to params Property
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        layout.prop(self, 'property0')
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        # Button ADD parameter
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        row = layout.row(align=True)
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        column = row.column(align=True)
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        op = column.operator('lnx.node_call_func', text='Add Param', icon='PLUS', emboss=True)
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        op.node_index = self.get_id_str()
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        op.callback_name = 'add_sockets'
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        # Button REMOVE parameter
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        column = row.column(align=True)
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        op = column.operator('lnx.node_call_func', text='', icon='X', emboss=True)
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        op.node_index = self.get_id_str()
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        op.callback_name = 'remove_sockets'
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        if self.num_params == 0:
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            column.enabled = False
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