thresholdfloor 0.3.4

A floor below for tuning to what's above

ThresholdFloor

ThresholdFloor is a geolocated simulation of light, shadow, and sky.

It answers a very old question:

If I stand here, what is the sky doing right now?

Where MoonTime tracks cycles, and AetherField tracks positions, ThresholdFloor brings those movements down to Earth — into light, into shadow, into place.

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🌍 What It Does

ThresholdFloor creates a virtual “floor” at a real location on Earth and lets you observe:

• ☀️ The Sun’s angle across the sky
• 🌗 The shifting length and direction of shadows
• 🌅 Sunrise and sunset behavior
• 🌞 Seasonal turning points (equinoxes, solstices)
• 🌌 Zodiac regions above and below the horizon

It turns celestial motion into something physical:

light touching ground

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🧭 Core Idea

In many ancient systems, knowledge of time and season did not come from clocks.

It came from:

• shadows on the ground
• the angle of light
• where the sun rose and set

ThresholdFloor recreates that perspective computationally.

Instead of asking:

What time is it?

You can ask:

Where is the light?

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🚀 Quick Example

from thresholdfloor import ThresholdFloor as tf

def test_one():

    tfloor = tf(
        name="meow meow tehran",
        latitude=35.6892,
        longitude=51.3890,
        tz="Asia/Tehran"
    )

    print(tfloor.get_phase())  # Shadow-based phase

    tfloor.sigil()  # Visual representation of current state

    hkfloor = tf(
        "meow meow hongkong",
        22.3027,
        114.1772,
        "Asia/Hong_Kong",
        elevation_m=958
    )

    sigil = hkfloor.sigil(show=False)

    print(hkfloor.get_sunrise())  # Sunrise angle

    bfloor = tf(
        "meow meow beijing",
        39.9075,
        116.3972,
        "Asia/Shanghai",
        elevation_m=50
    )

    print(bfloor.as_above())  # Zodiac above horizon
    print(bfloor.so_below())  # Zodiac below horizon

    tofloor = tf(
        "meow meow tokyo",
        35.68972,
        139.69222,
        "Asia/Tokyo"
    )

    print(tofloor.now())      # Local MoonTime
    print(tofloor.observe())  # Current solar geometry

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🌞 Solar Cycle Example

def test_two():

    jfloor = tf(
        "Jericho",
        latitude=31.871,
        longitude=35.443,
        tz="Asia/Jerusalem"
    )

    # Configure observation point
    jfloor.configure_gatehouse(31.8720, 35.4440, -245.0, bearing_deg=90.7)

    # Compute solstice anchors
    summer, winter = jfloor.compute_solstice_anchors()

    # Lay out solar markers across the year
    jfloor.auto_layout_gate_posts_across_solar_range(
        start_date=winter,
        days=366,
        num_pegs=7,
    )

    # Scan solar cycle into months
    result = jfloor.scan_solar_cycle_for_months(winter, days=366)

    for m in range(1, 13):
        print(f"Month {m}: first hit on {result['first_hits'][m]}")

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🧩 Core Concepts

Floor

A Floor is a fixed location defined by:

• latitude
• longitude
• timezone
• optional elevation

It represents a real place on Earth.

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Observation

tfloor.observe()

Returns the current solar position relative to the floor:

• altitude
• azimuth
• light direction

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Phase

tfloor.get_phase()

A shadow-based phase derived from solar geometry.

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Sigil

tfloor.sigil()

Generates a visual encoding of the current state of the floor.

This is an evolving feature and may expand in future releases.

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Horizon Mapping

tfloor.as_above()
tfloor.so_below()

Maps zodiac regions relative to the local horizon.

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Local Time

tfloor.now()

Returns the current moment expressed relative to the floor.

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🌌 Design Philosophy

ThresholdFloor is built around a simple inversion:

Modern systems:

• abstract time
• global reference
• detached observation

ThresholdFloor:

• grounded time
• local reference
• embodied observation

It does not ask you to synchronize with a global clock.

It lets you observe what is happening where you are.

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🧬 Ecosystem

ThresholdFloor builds on:

• moontime → temporal cycles
• aetherfield → celestial positions

Together they form:

• Time → MoonTime
• Sky → AetherField
• Ground → ThresholdFloor

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🧪 Status

Alpha release.

Core functionality is in place, but APIs and visual systems (such as sigils) are still evolving.

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🕯️ Closing Note

There was a time when people did not need instruments to understand the day.

They could look at a shadow and know:

• how far the sun had traveled
• what season they were in
• where they stood in the cycle

ThresholdFloor is an attempt to rebuild that intuition.

Not by replacing modern systems —

but by letting light and shadow speak again.