TmNgOdometer  

TmNgOdometer is an Angular library for creating animated numeric counters with precise decimal handling and support for various themes and animation styles.

Table of Contents

1. Project Overview
2. Features
3. Screenshots
4. Environment Setup
- Prerequisites
- Setup Steps
5. Usage
- How to Use
- Configuration
- Modes
- Demo
6. Development
- Setup for Development
- Improvements
7. Acknowledgments
8. Support
9. License

Project Overview

TmNgOdometer is inspired by and built on top of Ng2Odometer and HubSpot's Odometer libraries. This library enhances their functionality by introducing precise decimal handling, ensuring that numbers with decimal places retain their precision during and after animations (e.g., 1200 with a precision of 2 will display as 1200.00). It is fully compatible with Angular and provides both manual and automatic modes for updating odometer values.

Features

- Compatibility: Fully compatible with Angular.
- Decimal Precision: Preserves decimal precision during animations.
- Themes: Supports various themes and animation styles.
- Integration: Easy integration with Angular applications.
- Modes: Manual and automatic triggering modes for odometer.

Screenshots

See the TmNgOdometer in action below:

!Quick Preview

> _A quick look at the TmNgOdometer in action._

---

$3


> _Click to watch the high-quality video with smooth animations and detailed UI/UX._

Environment Setup

$3

- Node.js/NPM
- Angular CLI version 19.2.7 or higher.

$3

1. Install the library via npm:

``bash
npm install tm-ng-odometer --save
`

2. Import the TmNgOdometerModule into your Angular application module:

`typescript
import { NgModule } from "@angular/core";
import { BrowserModule } from "@angular/platform-browser";
import { TmNgOdometerModule } from "tm-ng-odometer"; // Import the TmNgOdometer module
import { AppComponent } from "./app.component";

@NgModule({
imports: [
BrowserModule,
TmNgOdometerModule, // Add the module to the imports array
],
declarations: [AppComponent],
bootstrap: [AppComponent],
})
export class AppModule {}
`

Usage

$3

To use the odometer component, include the tag in your template. The number attribute is required and specifies the value to display. The config attribute is optional and allows customization.

Example:

`typescript
@Component({
selector: "main-element",
template: ,
})
export class MainElementComponent {
public number: number = 1000;
}
`

$3

The component supports the following configuration options:

| Option | Type | Default | Description |
| ----------- | ------- | ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
| animation | string | 'slide' | Animation effect type. Options: 'slide', 'count'. |
| format | string | '(,ddd)' | Number format. Examples: '(,ddd)' → 12,345, '(,ddd).dd' → 12,345.67, (.ddd),dd → 12.345,67, ( ddd),dd → 12 345,67, d → 12345. |
| theme | string | 'default' | Theme for the odometer. Options: 'default', 'car', 'digital', 'minimal', 'plaza', 'slot-machine', 'train-station'. |
| value | number | 0 | Initial value of the odometer. |
| auto | boolean | true | Whether the odometer updates automatically or manually. |

The component accepts either a [config] attribute with an object containing all configuration options or independent attributes for each option. If both are provided, the independent attributes take precedence and overwrite the values in the [config] object.

Example:

`typescript
@Component({
selector: "main-element",
template:

,
})
export class MainElementComponent {}
`

$3

The TmNgOdometer component supports two modes of operation: Auto Mode and Manual Mode.

#### Auto Mode (Default)

In auto mode, the odometer automatically updates whenever the number input changes. This is the default behavior and requires no additional configuration.

Example:

`typescript
@Component({
selector: "main-element",
template: ,
})
export class MainElementComponent {
public number: number = 1000;

updateNumber() {
this.number += 500; // The odometer will automatically update to the new value.
}
}
`

#### Manual Mode

In manual mode, the odometer does not automatically update when the number input changes. Instead, updates are triggered explicitly using an Observable provided via the observable input.

How it works:

- Set auto: false in the config object to enable manual mode.
- Provide an Observable to the observable input. When the Observable emits a value, the odometer updates to the current value of the number input.

Example:

`typescript
@Component({
selector: "main-element",
template: ,
})
export class MainElementComponent {
public number: number = 1000;
public observable: Observable;
private observer: Observer;

constructor() {
// Create an Observable to act as the manual trigger
this.observable = new Observable((observer: any) => (this.observer = observer)).pipe(share());

this.number += 500; // Update the number
setTimeout(() => {
this.observer.next(true); // Trigger the odometer update after 2 seconds
}, 2000);
}
}
`

#### Key Differences Between Modes

| Feature | Auto Mode (auto: true) | Manual Mode (auto: false) |
| --------------------- | --------------------------------------------- | ------------------------------------------------ |
| Behavior | Automatically updates when number changes. | Requires an explicit trigger via observable. |
| Use Case | Simple scenarios where updates are automatic. | Advanced scenarios requiring controlled updates. |
| Trigger Mechanism | Changes to number input. | Emission from observable. |

$3

A demo project is included in the demo folder. To run the demo:

1. Navigate to the demo folder:

`bash
cd demo
`

2. Install dependencies:

`bash
npm install
`

3. Start the development server:

`bash
ng serve
`

4. Open http://localhost:4200 in your browser to view the demo.

Development

$3

1. Prerequisites:

- Node.js/NPM

2. Clone the Repository:

`bash
git clone https://github.com/mtmarco87/tm-ng-odometer.git
cd tm-ng-odometer
`

3. Install Dependencies:

`bash
npm install
`

4. Build the Library:

`bash
npm run build
`

5. Build Package:
`bash
npm run pack
`

$3

- Add unit tests for the library and demo.
- Introduce new themes for the odometer.
- Create a directive for additional flexibility.

Acknowledgments

- TmOdometer by Marco Trinastich: GitHub/NPM
- HubSpot's Odometer: GitHub
- Ng2Odometer by Jose Andres: NPM

Support

If you find this library useful, consider supporting its development:

- ⭐ Star the repository on GitHub.
- 💬 Share feedback or suggestions by opening an issue.
- ☕ Buy me a coffee to support future updates.
- 🔵 BTC Address: bc1qzy6e99pkeq00rsx8jptx93jv56s9ak2lz32e2d
- 🟣 ETH Address: 0x38cf74ED056fF994342941372F8ffC5C45E6cF21

License

This project is licensed under the MIT License. See the LICENSE` file for more details.