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[OutSystems Charts]  [OutSystems Mobile] Stacked Bar Chart with Border Radius – Overlap Issue
Question
outsystems-charts
Reactive icon
Forge asset by OutSystems
Application Type
Mobile
Service Studio Version
11.55.28 (Build 64236)

Hi everyone,

I'm currently building a stacked bar chart for a Mobile app in OutSystems, and I’ve encountered a visual rendering issue when trying to apply border radius to each segment in a column. This is UI in Figma

After researching libraries like Chart.js, Highcharts, and ApexCharts, it appears that only Chart.js supports the level of customization I need for rounded corners on individual segments in a stacked bar chart. However, I'm not sure how to properly import and use Chart.js inside OutSystems Mobile.

In Highchart or ApexCharts this causes a visual overlap where the rounded corners from both segments meet. The result is a strange visual bump or double rounding effect in the middle of the column, which makes the chart look inconsistent.


I’d really appreciate guidance on:

  • How to import Chart.js into an OutSystems Mobile app

  • Or any alternative techniques to achieve smooth stacking with border radius

Thanks a lot in advance! 🙏

UserImage.jpg
Tuan Duong

Do someone can help me solve the problem?

2025-05-15 01-57-31
Grace Tamayo

This may not be an exact solution for your use case but a possible workaround for what you want

Highcharts Sample 

I just changed these values to get the result

2022-11-12 11-28-30
Gonçalo Martins
Staff

Hello @Tuan Duong 

To make this more collaborative and to make sure the community is looking into the same use case that you're reporting, please share a sample oml where that can be reproduced and please indicate the steps to reproduce the scenario you mentioned (include a GIF/video if it's easier).

Cheers,
GM

2022-11-12 11-28-30
Gonçalo Martins
Staff

Hello @Tuan Duong 

Any update about this reported issue?

Cheers,
GM

Community GuidelinesBe kind and respectful, give credit to the original source of content, and search for duplicates before posting.