ImageDrawArc

Documentation

• Class name: ImageDrawArc
• Category: image/draw
• Output node: False

The ImageDrawArc node is designed for drawing arcs on images. It leverages parameters such as dimensions, color, and arc specifics to render arcs directly onto a given image canvas, facilitating the creation of graphical representations and annotations.

Input types

Required

• width
  • Specifies the width of the image canvas where the arc will be drawn.
  • Comfy dtype: INT
  • Python dtype: int
• height
  • Specifies the height of the image canvas where the arc will be drawn.
  • Comfy dtype: INT
  • Python dtype: int
• size
  • Determines the thickness of the arc line.
  • Comfy dtype: INT
  • Python dtype: int
• start_x
  • The starting x-coordinate for the arc on the image canvas.
  • Comfy dtype: FLOAT
  • Python dtype: float
• start_y
  • The starting y-coordinate for the arc on the image canvas.
  • Comfy dtype: FLOAT
  • Python dtype: float
• end_x
  • The ending x-coordinate for the arc on the image canvas.
  • Comfy dtype: FLOAT
  • Python dtype: float
• end_y
  • The ending y-coordinate for the arc on the image canvas.
  • Comfy dtype: FLOAT
  • Python dtype: float
• start
  • The starting angle of the arc.
  • Comfy dtype: INT
  • Python dtype: float
• end
  • The ending angle of the arc.
  • Comfy dtype: INT
  • Python dtype: float
• red
  • The red component of the arc's color.
  • Comfy dtype: INT
  • Python dtype: int
• green
  • The green component of the arc's color.
  • Comfy dtype: INT
  • Python dtype: int
• blue
  • The blue component of the arc's color.
  • Comfy dtype: INT
  • Python dtype: int
• alpha
  • The alpha (transparency) component of the arc's color.
  • Comfy dtype: FLOAT
  • Python dtype: float
• SSAA
  • Super Sampling Anti-Aliasing factor for higher quality rendering.
  • Comfy dtype: INT
  • Python dtype: int
• method
  • The method used for resizing the image after drawing the arc, affecting the final image quality.
  • Comfy dtype: COMBO[STRING]
  • Python dtype: str

Output types

• image
  • Comfy dtype: IMAGE
  • Returns the image tensor with the drawn arc.
  • Python dtype: torch.Tensor

Usage tips

• Infra type: GPU
• Common nodes: unknown

Source code

class ImageDrawArc:
    def __init__(self):
        pass

    @classmethod
    def INPUT_TYPES(cls):
        return {
            "required": {
                "width": ("INT", {
                    "default": 256,
                    "min": 1,
                    "step": 1
                }),
                "height": ("INT", {
                    "default": 256,
                    "min": 1,
                    "step": 1
                }),
                "size": ("INT", {
                    "default": 1,
                    "min": 1,
                    "step": 1
                }),
                "start_x": ("FLOAT", {
                    "default": 0.0,
                    "max": 1.0,
                    "step": 0.01
                }),
                "start_y": ("FLOAT", {
                    "default": 0.0,
                    "max": 1.0,
                    "step": 0.01
                }),
                "end_x": ("FLOAT", {
                    "default": 1.0,
                    "max": 1.0,
                    "step": 0.01
                }),
                "end_y": ("FLOAT", {
                    "default": 1.0,
                    "max": 1.0,
                    "step": 0.01
                }),
                "start": ("INT", {
                    "default": 0,
                    "max": 360,
                    "step": 1
                }),
                "end": ("INT", {
                    "default": 180,
                    "max": 360,
                    "step": 1
                }),
                "red": ("INT", {
                    "default": 255,
                    "max": 255,
                    "step": 1
                }),
                "green": ("INT", {
                    "default": 255,
                    "max": 255,
                    "step": 1
                }),
                "blue": ("INT", {
                    "default": 255,
                    "max": 255,
                    "step": 1
                }),
                "alpha": ("FLOAT", {
                    "default": 1.0,
                    "max": 1.0,
                    "step": 0.01
                }),
                "SSAA": ("INT", {
                    "default": 4,
                    "min": 1,
                    "max": 16,
                    "step": 1
                }),
                "method": (["lanczos", "bicubic", "hamming", "bilinear", "box", "nearest"],),
            },
        }

    RETURN_TYPES = ("IMAGE",)
    FUNCTION = "node"
    CATEGORY = "image/draw"

    # noinspection PyPep8Naming, PyUnresolvedReferences
    def node(self, width, height, size, start_x, start_y, end_x, end_y, start, end, red, green, blue, alpha, SSAA, method):
        canvas = Image.new("RGBA", (width * SSAA, height * SSAA), (0, 0, 0, 0))

        draw = ImageDraw.Draw(canvas)
        draw.arc(
            [
                (width * start_x * SSAA, height * start_y * SSAA),
                (width * end_x * SSAA, height * end_y * SSAA)
            ],
            start, end, (red, green, blue, int(alpha * 255)), size * SSAA
        )

        canvas = canvas.resize((width, height), get_sampler_by_name(method))

        return (canvas.image_to_tensor().unsqueeze(0),)