SDXL Aspect Ratio

Documentation

• Class name: SDXLAspectRatioSelector
• Category: Art Venture/Utils
• Output node: False

The SDXLAspectRatioSelector node is designed to select and adjust the aspect ratio for images, ensuring they fit specific dimensions while maintaining the original proportions. It provides a mechanism to scale images to a wide range of predefined aspect ratios, making it suitable for various display or processing requirements.

Input types

Required

• aspect_ratio
  • Specifies the desired aspect ratio for the image, chosen from a predefined list of ratios. This selection determines the dimensions to which the image will be scaled, affecting its final appearance.
  • Comfy dtype: COMBO[STRING]
  • Python dtype: str

Output types

• ratio
  • Comfy dtype: STRING
  • The selected aspect ratio as a string, indicating the proportion between width and height of the image.
  • Python dtype: str
• width
  • Comfy dtype: INT
  • The calculated width of the image after scaling to the selected aspect ratio.
  • Python dtype: int
• height
  • Comfy dtype: INT
  • The calculated height of the image after scaling to the selected aspect ratio.
  • Python dtype: int

Usage tips

• Infra type: CPU
• Common nodes: unknown

Source code

class UtilSDXLAspectRatioSelector:
    @classmethod
    def INPUT_TYPES(s):
        return {
            "required": {
                "aspect_ratio": (
                    [
                        "1:1",
                        "2:3",
                        "3:4",
                        "5:8",
                        "9:16",
                        "9:19",
                        "9:21",
                        "3:2",
                        "4:3",
                        "8:5",
                        "16:9",
                        "19:9",
                        "21:9",
                    ],
                ),
            }
        }

    RETURN_TYPES = ("STRING", "INT", "INT")
    RETURN_NAMES = ("ratio", "width", "height")
    FUNCTION = "get_aspect_ratio"
    CATEGORY = "Art Venture/Utils"

    def get_aspect_ratio(self, aspect_ratio):
        width, height = 1024, 1024

        if aspect_ratio == "1:1":
            width, height = 1024, 1024
        elif aspect_ratio == "2:3":
            width, height = 832, 1216
        elif aspect_ratio == "3:4":
            width, height = 896, 1152
        elif aspect_ratio == "5:8":
            width, height = 768, 1216
        elif aspect_ratio == "9:16":
            width, height = 768, 1344
        elif aspect_ratio == "9:19":
            width, height = 704, 1472
        elif aspect_ratio == "9:21":
            width, height = 640, 1536
        elif aspect_ratio == "3:2":
            width, height = 1216, 832
        elif aspect_ratio == "4:3":
            width, height = 1152, 896
        elif aspect_ratio == "8:5":
            width, height = 1216, 768
        elif aspect_ratio == "16:9":
            width, height = 1344, 768
        elif aspect_ratio == "19:9":
            width, height = 1472, 704
        elif aspect_ratio == "21:9":
            width, height = 1536, 640

        return (aspect_ratio, width, height)