Error rendering ArcLayer

[kylebarron]

from geodatafusion import register_all
from datafusion import SessionContext
from geoarrow.rust.core import GeoChunkedArray
from lonboard import viz
from arro3.core import Table
import numpy as np
import pyarrow as pa
import requests
from lonboard import Map, ScatterplotLayer
from lonboard.experimental import ArcLayer
from lonboard.layer_extension import BrushingExtension

def create_context():
    ctx = SessionContext()
    register_all(ctx)
    ctx.register_parquet(
        "trips",
        "yellow_tripdata_2010-01_geo.parquet",
        skip_metadata=False,
    )
    return ctx

ctx = create_context()

sql = "SELECT * FROM trips LIMIT 100000;"

table = Table.from_arrow(ctx.sql(sql))
non_geo_table = table.select([col for col in table.column_names if col not in ["pickup", "dropoff"]] )

layer = ArcLayer(
    table=non_geo_table,
    get_source_position=table["pickup"],
    get_target_position=table["dropoff"],
    get_source_color=[166, 3, 3],
    get_target_color = [35, 181, 184],
    get_width=200,
    width_min_pixels=50,
)

view_state = dict(longitude=-73.95305330000001, latitude=40.742175399999994, zoom=10, pitch=0, bearing=0)
m = Map([layer], view_state=view_state)

m

Error loading child models or setting bounds: RuntimeError: unreachable
    at parquet_wasm_bg.wasm:0x364e78
    at parquet_wasm_bg.wasm:0x3f3bf1
    at parquet_wasm_bg.wasm:0x94b69
    at parquet_wasm_bg.wasm:0x16a0e6
    at parquet_wasm_bg.wasm:0x15dcb2
    at parquet_wasm_bg.wasm:0x29dd1b
    at parquet_wasm_bg.wasm:0x35b55c
    at parquet_wasm_bg.wasm:0x384331
    at Yae (fd98ff29-36e3-46b7-8c4b-100f918bc846:2228:755)
    at gLe (fd98ff29-36e3-46b7-8c4b-100f918bc846:2237:48404)
(anonymous) @ fd98ff29-36e3-46b7-8c4b-100f918bc846:4057

[kylebarron]

I need to check but I think this may be the same as #871, fixed by #872

[kylebarron]

This is working now:

Fixed by #877 and #872

from arro3.core import Table
from datafusion import SessionContext
from geodatafusion import register_all

from lonboard import Map
from lonboard.experimental import ArcLayer
from lonboard.layer_extension import BrushingExtension

path = "/Users/kyle/github/kylebarron/datafusion-nyc-2025-demo/yellow_tripdata_2010-01_geo.parquet"
ctx = SessionContext()
register_all(ctx)
ctx.register_parquet("trips", path, skip_metadata=False)

sql = "SELECT * FROM trips LIMIT 100000;"

table = Table.from_arrow(ctx.sql(sql))
non_geo_table = table.select(
    [col for col in table.column_names if col not in ["pickup", "dropoff"]],
)


layer = ArcLayer(
    table=non_geo_table,
    get_source_position=table["pickup"],
    get_target_position=table["dropoff"],
    get_source_color=[166, 3, 3],
    get_target_color=[35, 181, 184],
    get_width=0.5,
    width_min_pixels=0.5,
    opacity=0.1,
)

view_state = dict(
    longitude=-73.95305330000001,
    latitude=40.742175399999994,
    zoom=10,
    pitch=0,
    bearing=0,
)
m = Map([layer], view_state=view_state)

m