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

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評估

難度
4/5
預估耗時
3-5 天
新手友好度
45/100
Issue 類型
缺陷
描述清晰度
基本清楚
活躍度
冷清
技術堆疊
javascript
領域
data-visualization, frontend

研究方向

使用 OpenFreeMap 自訂樣式和已啟用的 scattermap 聚類，透過連結的 CodePen 重現此失敗。檢查 scattermap 聚類的轉譯進入點，以及報告中顯示的字型請求；當聚類點能以該樣式轉譯而不需要不可用的字型，或已明確確立受支援的限制時，即表示完成。

由索引模型根據 Issue 內容生成。

描述

bug
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.

主要語言
JavaScript
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