CavinHuang-comfyui-nodes-docs/docs/Compare.md

Documentation

• Class name: Compare
• Category: Logic
• Output node: False
• Repo Ref: https://github.com/comfyanonymous/ComfyUI

Compare节点旨在根据指定的比较操作（如相等、不等、大于、小于）评估两个输入之间的关系。它将比较逻辑抽象成一个简单的接口，使用户能够动态评估和处理其数据或变量的条件。

Input types

Required

• a
  • 第一个待比较的输入。它在决定比较操作结果中起着至关重要的作用。
  • Comfy dtype: *
  • Python dtype: Any
• b
  • 与第一个输入进行比较的第二个输入。它的值在评估指定比较条件时至关重要。
  • Comfy dtype: *
  • Python dtype: Any
• comparison
  • 指定在两个输入之间执行的比较类型（如'=='、'!='、'<'、'>'、'<='、'>='）。这决定了用于比较的逻辑，直接影响结果。
  • Comfy dtype: COMBO[STRING]
  • Python dtype: str

Output types

• B
  • 比较操作的结果，表示两个输入之间的指定条件是否成立。
  • Comfy dtype: BOOLEAN
  • Python dtype: bool

Usage tips

• Infra type: CPU
• Common nodes: unknown

Source code

class Compare:
    """
    This nodes compares the two inputs and outputs the result of the comparison.
    """

    @classmethod
    def INPUT_TYPES(s):
        """
        Comparison node takes two inputs, a and b, and compares them.
        """
        s.compare_functions = list(COMPARE_FUNCTIONS.keys())
        return {
            "required": {
                "a": (AlwaysEqualProxy("*"), {"default": 0}),
                "b": (AlwaysEqualProxy("*"), {"default": 0}),
                "comparison": (s.compare_functions, {"default": "a == b"}),
            },
        }

    RETURN_TYPES = ("BOOLEAN",)

    RETURN_NAMES = "BOOLEAN"

    FUNCTION = "compare"

    CATEGORY = "Logic"

    def compare(self, a, b, comparison):
        """
        Compare two inputs and return the result of the comparison.

        Args:
            a (UNKNOWN): The first input.
            b (UNKNOWN): The second input.
            comparison (STRING): The comparison to perform. Can be one of "==", "!=", "<", ">", "<=", ">=".

        Returns:
            : The result of the comparison.
        """
        return (COMPARE_FUNCTIONS[comparison](a, b),)