add_curve_aceous_galore.py

        # options per GalloreType
        box = layout.box()
        if self.GalloreType == 'Profile':
            box.prop(self, 'ProfileCurveType')
            box.prop(self, 'ProfileCurvevar1')
            box.prop(self, 'ProfileCurvevar2')
        if self.GalloreType == 'Miscellaneous':
            box.prop(self, 'MiscCurveType')
            box.prop(self, 'MiscCurvevar1', text='Width')
            box.prop(self, 'MiscCurvevar2', text='Height')
            if self.MiscCurveType == 5:
                box.prop(self, 'MiscCurvevar3', text='Rounded')
        if self.GalloreType == 'Flower':
            box.prop(self, 'petals')
            box.prop(self, 'petalWidth')
            box.prop(self, 'innerRadius')
            box.prop(self, 'outerRadius')
        if self.GalloreType == 'Star':
            box.prop(self, 'starPoints')
            box.prop(self, 'starTwist')
            box.prop(self, 'innerRadius')
            box.prop(self, 'outerRadius')
        if self.GalloreType == 'Arc':
            box.prop(self, 'arcSides')
            box.prop(self, 'arcType') # has only one Type?
            box.prop(self, 'startAngle')
            box.prop(self, 'endAngle')
            box.prop(self, 'innerRadius') # doesn't seem to do anything
            box.prop(self, 'outerRadius')
        if self.GalloreType == 'Cogwheel':
            box.prop(self, 'teeth')
            box.prop(self, 'bevel')
            box.prop(self, 'innerRadius')
            box.prop(self, 'middleRadius')
            box.prop(self, 'outerRadius')
        if self.GalloreType == 'Nsided':
            box.prop(self, 'Nsides')
            box.prop(self, 'outerRadius', text='Radius')

        if self.GalloreType == 'Splat':
            box.prop(self, 'splatSides')
            box.prop(self, 'outerRadius')
            box.prop(self, 'splatScale')
            box.prop(self, 'seed')
            box.prop(self, 'basis')

        if self.GalloreType == 'Helix':
            box.prop(self, 'helixPoints')
            box.prop(self, 'helixHeight')
            box.prop(self, 'helixWidth')
            box.prop(self, 'helixStart')
            box.prop(self, 'helixEnd')
            box.prop(self, 'helix_a')
            box.prop(self, 'helix_b')
        if self.GalloreType == 'Cycloid':
            box.prop(self, 'cycloPoints')
            #box.prop(self, 'cycloType') # needs the other types first
            box.prop(self, 'cycloStart')
            box.prop(self, 'cycloEnd')
            box.prop(self, 'cyclo_a')
            box.prop(self, 'cyclo_b')
            box.prop(self, 'cyclo_d')

        col = layout.column()
        col.label(text="Output Curve Type")
        row = layout.row()
        row.prop(self, 'outputType', expand=True)
        col = layout.column()
        col.label(text="Curve Options")

        # output options
        box = layout.box()
        if self.outputType == 'NURBS':
            box.row().prop(self, 'shape', expand=True)
            #box.prop(self, 'use_cyclic_u')
            #box.prop(self, 'endp_u')
            box.prop(self, 'order_u')

        if self.outputType == 'POLY':
            box.row().prop(self, 'shape', expand=True)
            #box.prop(self, 'use_cyclic_u')

        if self.outputType == 'BEZIER':
            box.row().prop(self, 'shape', expand=True)
            box.row().prop(self, 'handleType', expand=True)
            #box.prop(self, 'use_cyclic_u')


    ##### POLL #####
    @classmethod
    def poll(cls, context):
        return context.scene != None

    ##### EXECUTE #####
    def execute(self, context):
        # turn off undo
        undo = bpy.context.user_preferences.edit.use_global_undo
        bpy.context.user_preferences.edit.use_global_undo = False

        # deal with 2D - 3D curve differences
        if self.GalloreType in ['Helix', 'Cycloid']:
            self.shape = '3D'
        #else:
            #self.shape = '2D'     # someone decide if we want this

        if self.GalloreType in ['Helix']:
            self.use_cyclic_u = False
        else:
            self.use_cyclic_u = True


        # main function
        main(context, self, self.align_matrix)
        
        # restore pre operator undo state
        bpy.context.user_preferences.edit.use_global_undo = undo

        return {'FINISHED'}

    ##### INVOKE #####
    def invoke(self, context, event):
        # store creation_matrix
        self.align_matrix = align_matrix(context)
        self.execute(context)

        return {'FINISHED'}

################################################################################
##### REGISTER #####

def Curveaceous_galore_button(self, context):
    self.layout.operator(Curveaceous_galore.bl_idname, text="curvatures gallore", icon="PLUGIN")


def register():
    bpy.types.INFO_MT_curve_add.append(Curveaceous_galore_button)

def unregister():
    bpy.types.INFO_MT_curve_add.remove(Curveaceous_galore_button)

if __name__ == "__main__":
    register()