[Bug] wordcloud fontSizeLimitMax not work

Description

const spec = {
  type: 'wordCloud',
  nameField: 'name',
  valueField: 'value',
  wordCloudConfig: {
    zoomToFit: {
      enlarge: true,
      fontSizeLimitMax: 20,
      // fontSizeLimitMin: 10,
    }
  },
  data: {
    name: 'baseData',
    values: [
      {
        name: '螺蛳粉',
        value: 957
      },
      {
        name: '钵钵鸡',
        value: 942
      },
      {
        name: '板栗',
        value: 842
      },
      {
        name: '胡辣汤',
        value: 828
      },
      {
        name: '关东煮',
        value: 665
      },
      {
        name: '羊肉汤',
        value: 627
      },
      {
        name: '热干面',
        value: 574
      }
    ]
  }
};
const vchart = new VChart(spec, { dom: CONTAINER_ID });
vchart.renderSync();

// Just for the convenience of console debugging, DO NOT COPY!
window['vchart'] = vchart;

- OS:
- Browser:
- Framework:

Contributor guide

Tech stack

typescriptjavascripthtmlcss

Domain

frontenddata

Issue type

bug

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

3

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

half day

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

blocked

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

clear

Prerequisites

TypeScript proficiencyUnderstanding of VChart word cloud APIBasic debugging skills

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

35

Research direction

Investigate the VChart word cloud component's zoomToFit logic. Search for fontSizeLimitMax usage in the source code. The bug suggests that when fontSizeLimitMax is set, the font size is not being capped. Look at the rendering pipeline for word clouds to see where the font size is calculated and ensure the limit is applied correctly. Check existing tests for zoomToFit to understand expected behavior.