IceBerg

Iceberg is a compositional diagramming and graphics library embedded in Python. It is designed to be performant, extensible, and easy to use.

The above animation was 33 lines of code

Playground

Online Interactive Playground on Colab!

Documentation

A walkthrough tutorial on diagramming with Iceberg can be found here.

Showcase

Geometry

Neural Network

A composable Neural Network diagramming class written in iceberg. Full example in examples/neural_network.py.

import iceberg as ice

network = NeuralNetwork(
    # Number of nodes in each layer!
    layer_node_counts=[3, 4, 4, 2],
    node_border_color=ice.Colors.BLACK,
    line_path_style=ice.PathStyle(ice.Colors.BLACK, thickness=3),
)

canvas = ice.Blank(ice.Bounds(size=(1080, 720)), background=ice.Colors.WHITE)
scene = canvas.add_centered(network)
scene.render("test.png")

Tex, Arrangements, SVG Outputs

Iceberg supports Tex and Arrangements. Full example in examples/connect.py.

import iceberg as ice

left_ellipse = ice.Ellipse(
    rectangle=ice.Bounds(size=(_CIRCLE_WIDTH, _CIRCLE_WIDTH)),
    border_color=ice.Color.from_hex("#d63031"),
    border_thickness=_BORDER_THICKNESS,
    fill_color=ice.Color.from_hex("#ff7675"),
).pad(_CIRCLE_PAD)

right_ellipse = ice.Ellipse(
    rectangle=ice.Bounds(size=(_CIRCLE_WIDTH, _CIRCLE_WIDTH)),
    border_color=ice.Color.from_hex("#0984e3"),
    border_thickness=_BORDER_THICKNESS,
    fill_color=ice.Color.from_hex("#74b9ff"),
).pad(_CIRCLE_PAD)

ellipses = ice.Arrange(
    [left_ellipse, right_ellipse],
    gap=500,
)

with ellipses:
    # Within this context, we can use `relative_bounds` to get the bounds of the
    # `left_ellipse` and `right_ellipse` relative to the `ellipses` object.
    arrow = ice.Arrow(
        left_ellipse.relative_bounds.corners[Corner.MIDDLE_RIGHT],
        right_ellipse.relative_bounds.corners[Corner.MIDDLE_LEFT],
        line_path_style=ice.PathStyle(
            color=ice.Colors.BLACK,
            thickness=3,
        ),
    )

arrow_label = ice.MathTex("f(x) = x^2").scale(4)
arrow = ice.LabelArrow(
    arrow,
    arrow_label,
    ice.Corner.BOTTOM_MIDDLE,
    distance=20,
)
connection = ice.Compose([ellipses, arrow])

text_block = ice.Text(
    "This is some really long text, and it's going to wrap around at some point, because it's so long and I spent a lot of time on it.",
    font_style=ice.FontStyle(
        family=_FONT_FAMILY,
        size=28,
        color=ice.Colors.BLACK,
    ),
    width=connection.bounds.width,
)

scene = ice.Arrange(
    [connection, text_block],
    gap=10,
    arrange_direction=ice.Arrange.Direction.VERTICAL,
)

Animations

IceBerg can take a difference between two scenes and interpolate the difference.

sceneA = blank.add_centered(arrangeA)
sceneB = blank.add_centered(arrangeB)

# Interpolate between two different arrangements.
scene = tween(sceneA, sceneB, t / self.duration)

Install

The library is still under development, hence updates are frequent. To install the latest version, run the following command:

pip install git+https://github.com/revalo/iceberg.git

Not recommended yet, but if you want a stable version, use the PyPI package.:

pip install -U iceberg-dsl

Quickstart

Full example in examples/quickstart.py.

import iceberg as ice

# What font?
_FONT_FAMILY = "Arial"

# Create a blank canvas.
canvas = ice.Blank(ice.Bounds(size=(1080, 720)))

# Create a rectangle.
rectangle = ice.Rectangle(
    ice.Bounds(size=(500, 100)),
    ice.Colors.WHITE,
    border_thickness=3,
)

# Create some text.
text = ice.SimpleText(
    text="Hello, World!",
    font_style=ice.FontStyle(
        family=_FONT_FAMILY,
        size=28,
        color=ice.Colors.WHITE,
    ),
)

# Combine the rectangle and text into a _new_ object that has
# the text placed 10 pixels under the rectangle.
rectangle_and_text = rectangle.next_to(text, ice.Directions.DOWN * 10)

# Place the rectangle and text in the center of the canvas.
scene = canvas.add_centered(rectangle_and_text)
scene.render("test.png")

Should produce:

Citation

Cite Iceberg by clicking the "cite this repository" button on the right sidebar.

@software{IceBerg_Contributors_IceBerg_Compositional_2023,
    author = {{IceBerg Contributors}},
    license = {MIT},
    month = jul,
    title = {{IceBerg – Compositional Graphics & Diagramming}},
    url = {https://github.com/revalo/iceberg},
    year = {2023}
}