Release 1.1.2

June 10, 2026 · 3 min read

sporritt

In release 1.1.1 we added support for rotating label and custom overlays to match their connectors, which we thought was a cool feature. After configuring it in our Flowchart builder starter app, though, we decided to make a small update.

Consider this screenshot and have a look at the labels:

Rotating labels

...they are all faithfully rotated to match the slope of the connector at the points at which they are located, but that results in some of them being upside down - which is not perhaps the best UX. So, we've updated the label rotation code to support the concept of "strict" vs "legible" rotation. If you just set labelsRotatable:true you will now get "legible" rotation - the label is never rotated so that it is upside down, or difficult to read. In practice this means that any rotation between 90 degrees and 270 degrees is flipped:

React
Vue
Angular
Svelte

import { DiagramComponent } from "@visuallyjs/browser-ui-react"
import "@visuallyjs/browser-ui/css/visuallyjs.css";

export default function App() {
    
  const data = ...
    
  const options = {
  edges: {
    showLabels: true,
    labelsRotatable: true,
    targetMarker: "PlainArrow"
  }
}
    
  return <div style={{width:"100%", height:"500px"}}>
    <DiagramComponent data={data} options={options}/>
  </div>    
}

<script setup>


const options = {
  edges: {
    showLabels: true,
    labelsRotatable: true,
    targetMarker: "PlainArrow"
  }
}
const data = ...
</script>
<template>
  <div class="my-container">
    <DiagramComponent :data="data" :options="options"></DiagramComponent>
  </div>        
</template>

import { VisuallyJsModule } from "@visuallyjs/browser-ui-angular";
import {Component} from "@angular/core";

@Component({
    template:`<div style="width:100%;height:500px">
<vjs-diagram [data]="data" [options]="options"/>
</div>`
export class MyComponent {
    data = ...
    
    options = {
  edges: {
    showLabels: true,
    labelsRotatable: true,
    targetMarker: "PlainArrow"
  }
}
}

<script>

import { DiagramComponent } from "@visuallyjs/browser-ui-svelte"
    
const data = ...
    
const options = {
  edges: {
    showLabels: true,
    labelsRotatable: true,
    targetMarker: "PlainArrow"
  }
}
    
</script>    

<div class="my-container">
    <DiagramComponent data={data} options={options}/>
</div>

Contrast the above with what you get when you specify "strict" rotation:

React
Vue
Angular
Svelte

import { DiagramComponent } from "@visuallyjs/browser-ui-react"
import "@visuallyjs/browser-ui/css/visuallyjs.css";

export default function App() {
    
  const data = ...
    
  const options = {
  edges: {
    showLabels: true,
    labelsRotatable: "strict",
    targetMarker: "PlainArrow"
  }
}
    
  return <div style={{width:"100%", height:"500px"}}>
    <DiagramComponent data={data} options={options}/>
  </div>    
}

<script setup>


const options = {
  edges: {
    showLabels: true,
    labelsRotatable: "strict",
    targetMarker: "PlainArrow"
  }
}
const data = ...
</script>
<template>
  <div class="my-container">
    <DiagramComponent :data="data" :options="options"></DiagramComponent>
  </div>        
</template>

import { VisuallyJsModule } from "@visuallyjs/browser-ui-angular";
import {Component} from "@angular/core";

@Component({
    template:`<div style="width:100%;height:500px">
<vjs-diagram [data]="data" [options]="options"/>
</div>`
export class MyComponent {
    data = ...
    
    options = {
  edges: {
    showLabels: true,
    labelsRotatable: "strict",
    targetMarker: "PlainArrow"
  }
}
}

<script>

import { DiagramComponent } from "@visuallyjs/browser-ui-svelte"
    
const data = ...
    
const options = {
  edges: {
    showLabels: true,
    labelsRotatable: "strict",
    targetMarker: "PlainArrow"
  }
}
    
</script>    

<div class="my-container">
    <DiagramComponent data={data} options={options}/>
</div>

These changes have, of course, also been applied to the edges defined in a view for an App. First we see the default - "legible" - setting:

React
Vue
Angular
Svelte
Javascript

import { SurfaceComponent } from "@visuallyjs/browser-ui-react"

export default function MyComponent() {

  const viewOptions = {
  edges: {
    default: {
      label: "{{label}}",
      labelsRotatable: true,
      targetMarker: "PlainArrow"
    }
  }
}
  return <SurfaceComponent viewOptions={viewOptions}/>
}

<script setup>

function viewOptions() {
  return {
  edges: {
    default: {
      label: "{{label}}",
      labelsRotatable: true,
      targetMarker: "PlainArrow"
    }
  }
}
    }

</script>
<template>
  <SurfaceComponent :viewOptions="viewOptions()" />
</template>

import { Component, ViewChild } from '@angular/core';
import { SurfaceComponent } from '@visuallyjs/browser-ui-angular';

@Component({
  selector: 'app-root',
  template: ` <vjs-surface [viewOptions]="viewOptions"></vjs-surface> `
})
export class AppComponent {
  viewOptions = {
  edges: {
    default: {
      label: "{{label}}",
      labelsRotatable: true,
      targetMarker: "PlainArrow"
    }
  }
};
}

<script>
  import { SurfaceComponent } from "@visuallyjs/browser-ui-svelte"
  const viewOptions = {
  edges: {
    default: {
      label: "{{label}}",
      labelsRotatable: true,
      targetMarker: "PlainArrow"
    }
  }
}
</script>

<SurfaceComponent {viewOptions}/>

import { newInstance } from "@visuallyjs/browser-ui"

const model = newInstance()

const surface = model.render({
  view: {
    edges: {
      default: {
        label: "{{label}}",
        labelsRotatable: true,
        targetMarker: "PlainArrow"
      }
    }
  }
})

and this is how it looks when you specify "strict" rotation:

React
Vue
Angular
Svelte
Javascript

import { SurfaceComponent } from "@visuallyjs/browser-ui-react"

export default function MyComponent() {

  const viewOptions = {
  edges: {
    default: {
      label: "{{label}}",
      labelsRotatable: "strict",
      targetMarker: "PlainArrow"
    }
  }
}
  return <SurfaceComponent viewOptions={viewOptions}/>
}

<script setup>

function viewOptions() {
  return {
  edges: {
    default: {
      label: "{{label}}",
      labelsRotatable: "strict",
      targetMarker: "PlainArrow"
    }
  }
}
    }

</script>
<template>
  <SurfaceComponent :viewOptions="viewOptions()" />
</template>

import { Component, ViewChild } from '@angular/core';
import { SurfaceComponent } from '@visuallyjs/browser-ui-angular';

@Component({
  selector: 'app-root',
  template: ` <vjs-surface [viewOptions]="viewOptions"></vjs-surface> `
})
export class AppComponent {
  viewOptions = {
  edges: {
    default: {
      label: "{{label}}",
      labelsRotatable: "strict",
      targetMarker: "PlainArrow"
    }
  }
};
}

<script>
  import { SurfaceComponent } from "@visuallyjs/browser-ui-svelte"
  const viewOptions = {
  edges: {
    default: {
      label: "{{label}}",
      labelsRotatable: "strict",
      targetMarker: "PlainArrow"
    }
  }
}
</script>

<SurfaceComponent {viewOptions}/>

import { newInstance } from "@visuallyjs/browser-ui"

const model = newInstance()

const surface = model.render({
  view: {
    edges: {
      default: {
        label: "{{label}}",
        labelsRotatable: "strict",
        targetMarker: "PlainArrow"
      }
    }
  }
})

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