plotly / plotly/plotly.js

[BUG]: Clusters within scattermaps fail to display with at least one custom style

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#7,742 2 comentarios 0 reacciones 0 asignados Ver en GitHub

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bug
Lenguaje dominante
JavaScript
Estrellas
18.3k
Forks
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Merge medio
2 d 12 h
PR fusionados (30 d)
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Descripción

Description

I am attempting to add clusters to a Plotly.js scattermap that uses a custom style ("https://tiles.openfreemap.org/styles/bright") for the map's style argument. When clusters are disabled, the map appears as expected:

Image

Meanwhile, when clusters are enabled, only points not grouped into a cluster (i.e. Honolulu) are visible:

Image

When I checked my console, I saw the following error:

Image

Basically, the clusters appear to require a specific font (Open Sans Regular) for the cluster labels, but this font isn't available within openfreemap's server. (In other words, Plotly is requesting font information from https://tiles.openfreemap.org/fonts/Open%20Sans%20Regular/0-255.pbf , but that page shows a 404 Not Found message.)

One option would of course be for OpenFreeMap to add this font to their server, but it would be preferable to modify the library, if possible, to not require this particular font. (If there's already an option to do so, please let me know.) If that wouldn't be possible, perhaps the library could be updated to show clusters but not labels? That would still be a major improvement.

Thank you in advance for your assistance!

Steps to reproduce

Here is a Codepen that demonstrates this functionality. Note that, if you zoom in enough, the underlying clusters' dots will begin to appear. Thus, the issue is with clusters rather than their data.

Notes

One of my reasons for using this custom library is that, based on my correspondence with Carto, our organization may need to pay a substantial amount of money to use Carto's own tiles for our work. This is not the case with OpenFreeMap, which is why I strongly prefer using them in place of Carto. If I'm misunderstanding this licensing situation, just let me know.

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Línea de trabajo

Reproduce el fallo con el CodePen enlazado utilizando el estilo personalizado de OpenFreeMap y los clústeres de scattermap habilitados. Inspecciona el punto de entrada del renderizado de clústeres de scattermap y la solicitud de fuente mostrada en el informe; se considera terminado cuando los puntos agrupados se renderizan con ese estilo sin requerir una fuente no disponible, o cuando se establece claramente la limitación admitida.

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Evaluación

Stack tecnológico
javascript
Área
data-visualization, frontend
Tipo de issue
Error
Dificultad
4/5
Tiempo estimado
3-5 días
Estado de actividad
Tranquilo
Claridad
Bastante claro
Aptitud para principiantes
45/100

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