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Angular trend is a simple, elegant trend graphs for Angular.Features:Simple. Integrate in seconds.Scalable. Uses SVG for sharp, scalable graphs. Will fill the parent container, or you can provide a fixed size.Beautiful. Built-in gradient support, and customizable smoothing.Animatable. Support for on-mount animations where the trend graph draws from left to right.Tiny. Zero-dependency, gzips to <3kb

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Angular Trend

Angular Trend


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This is a port of the react-trend library by unsplash.

Demo

Check out the Angular Trend playground.

Features

  • Simple. Integrate in seconds.
  • Scalable. Uses SVG for sharp, scalable graphs. Will fill the parent container, or you can provide a fixed size.
  • Beautiful. Built-in gradient support, and customizable smoothing.
  • Animatable. Support for on-mount animations where the trend graph draws from left to right using Angular's native Animations library
  • Tiny. gzips to <4kb.

Installation

$ npm install ngx-trend

Quickstart

// app.module.ts import { NgModule } from '@angular/core'; import { TrendModule } from 'ngx-trend'; import { BrowserAnimationsModule } from '@angular/platform-browser/animations';  @NgModule({   imports: [     BrowserAnimationsModule,     TrendModule,   ], }) export class AppModule { }   // your.component.ts import { Component } from '@angular/core';  @Component({   selector: 'your-component',   template: `     <ngx-trend [data]="[0, 10, 5, 22, 3.6, 11]"></ngx-trend>   `, }) export class YourComponent {}  // That's it! // You can, of course, customize it. Check out the API Reference below. // Be sure to check out `autoDraw`, `gradient`, and `smoothing`.

API Reference

SVG Props

By default, all properties not recognized by React Trend will be delegated to the SVG. The line inherits these properties if none of its own override them.

This means that, among other properties, you can use:

  • stroke to set a solid color,
  • strokeWidth to change the default line thickness,
  • strokeOpacity to create a transparent line,
  • strokeLinecap/strokeLinejoin to control the edges of your line,
  • strokeDasharray to create a dashed line, and
  • strokeDashoffset to control where the dashes start.

autoDraw

Type Required Default
boolean โœ• false

Allow the line to draw itself on mount. Set to true to enable, and customize using autoDrawDuration and autoDrawEasing.

NOTE: This property uses strokeDasharray and strokeDashoffset under the hood to perform the animation. Because of this, any values you provide for those properties will be ignored.

Example
<ngx-trend   [data]="data"   autoDraw="true"   autoDrawDuration="3000"   autoDrawEasing="ease-in" ></ngx-trend>

autoDrawDuration

Type Required Default
number โœ• 2000

The amount of time, in milliseconds, that the autoDraw animation should span.

This prop has no effect if autoDraw isn't set to true.

Example
<ngx-trend   [data]="data"   autoDraw="true"   autoDrawDuration="3000"   autoDrawEasing="ease-in" ></ngx-trend>

autoDrawEasing

Type Required Default
string โœ• ease

The easing function to use for the autoDraw animation. Accepts any transition timing function within the CSS spec (eg. linear, ease, ease-in, cubic-bezier...).

This prop has no effect if autoDraw isn't set to true.

Example
<ngx-trend   [data]="data"   autoDraw="true"   autoDrawDuration="3000"   autoDrawEasing="ease-in" ></ngx-trend>

data

Type Required Default
number[] object[] โœ“ undefined

The data accepted by React Trend is incredibly simple: An array of y-axis values to graph.

React Trend takes care of normalization, so don't worry about ensuring the data is in a specific range.

This does mean that all data points will be evenly-spaced. If you have irregularly-spaced data, it will not be properly represented.

As of v1.2.0, you may supply an array of data objects with a value property.

Example
<ngx-trend [data]="[120, 149, 193.4, 200, 92]"></ngx-trend> <ngx-trend [data]="[{ value: 4 }, { value: 6 }, { value: 8 }]"></ngx-trend>

gradient

Type Required Default
string[] โœ• undefined

React Trend supports vertical gradients. It accepts an array of 2+ color values, and will fade evenly between them from the bottom up.

color can be specified as any SVG-supported format (named, rgb, hex, etc).

Example
<ngx-trend [gradient]="['#0FF', '#F0F', '#FF0']"></ngx-trend>

height

Type Required Default
number โœ• undefined

Set an explicit height for your SVG. By default it ensures a 1:4 aspect ratio with the width, and the width expands to fill the container.

Note that in most cases it is sufficient to leave this blank, and just control the size of the parent container.

Example
<ngx-trend width="200" height="200"></ngx-trend>

padding

Type Required Default
number โœ• 8

If you set a very large strokeWidth on your line, you may notice that it gets "cropped" towards the edges. This is because SVGs don't support overflow.

By increasing this number, you expand the space around the line, so that very thick lines aren't cropped.

In most cases you don't need to touch this value.

Example
<ngx-trend strokeWidth="20" [padding]="18"></ngx-trend>

radius

Type Required Default
number โœ• 10

When using smoothing, you may wish to control the amount of curve around each point. For example, a 0 radius is equivalent to not having any smoothing at all, where an impossibly-large number like 10000 will ensure that each peak is as curved as it can possibly be.

This prop has no effect if smooth isn't set to true.

Example
<ngx-trend smooth="true" radius="20" strokeWidth="4"></ngx-trend>

smooth

Type Required Default
boolean โœ• false

Smooth allows the peaks to be 'rounded' out so that the line has no jagged edges.

By tweaking the radius prop, you can use this as a subtle prop to tone down the sharpness, or you can set a very high radius to create a snake-like line.

Example
<ngx-trend smooth="true" radius="20" strokeWidth="4"></ngx-trend>

width

Type Required Default
number โœ• undefined

Set an explicit width for your SVG. By default it ensures a 1:4 aspect ratio with the height, expanding to fill the width of the container.

Note that in most cases it is sufficient to leave this blank, and just control the width of the parent container.

Example
<ngx-trend width="200" height="200"></ngx-trend>

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