[Bug] Error in 'PathLayer' to show z-axis

Description

Problem

When you write a code like this to visualize z-axis in 'OrbitView', only the z-axis didn't show up. No matter how you moved the viewpoint.

    axis_data = [
        # X-axis
        {"path": [[0, 0, 0], [AXIS_LENGTH, 0, 0]], "name": "X", "color": [255, 0, 0]},
        # Y-axis
        {"path": [[0, 0, 0], [0, AXIS_LENGTH, 0]], "name": "Y", "color": [0, 255, 0]},
        # Z-axis
        {"path": [[0, 0, 0], [0, 0, AXIS_LENGTH]], "name": "Z", "color": [0, 0, 255]},
    ]
    axis_layer = pdk.Layer(
        'PathLayer',
        data=axis_data,
        get_path='path',
        get_width=20,
        get_color='color',
        pickable=False
    )

Solution

However when you put a small value in y coordinates like this, it showed. So probably zero-division-error?

    axis_data = [
        # X-axis
        {"path": [[0, 0, 0], [AXIS_LENGTH, 0, 0]], "name": "X", "color": [255, 0, 0]},
        # Y-axis
        {"path": [[0, 0, 0], [0, AXIS_LENGTH, 0]], "name": "Y", "color": [0, 255, 0]},
        # Z-axis
        {"path": [[0, 0, 0], [0, 0.01, AXIS_LENGTH]], "name": "Z", "color": [0, 0, 255]},
    ]
    axis_layer = pdk.Layer(
        'PathLayer',
        data=axis_data,
        get_path='path',
        get_width=20,
        get_color='color',
        pickable=False
    )

Flavors

• Script tag
• React
• Python/Jupyter notebook
• MapboxOverlay
• GoogleMapsOverlay
• CARTO
• ArcGIS

Expected Behavior

As explained above

Steps to Reproduce

As explained above

Environment

• Framework version: deck.gl@0.9.1
• Browser:
• OS:

Logs

No response

Reproduce the example in a Python/Jupyter notebook using PathLayer and OrbitView, then trace the PathLayer rendering path for a segment whose z coordinate changes while y remains zero. Done means the z-axis renders without adding a y offset, while the existing x- and y-axis behavior remains intact.