### Install svelte-speedometer using npm

Source: https://github.com/palerdot/svelte-speedometer/blob/master/README.md

Installs the svelte-speedometer component library using npm. This is the first step to using the gauge component in your Svelte project. No specific dependencies are required for installation itself.

```bash
npm install --save svelte-speedometer
```

--------------------------------

### Svelte Speedometer: Default Initialization

Source: https://github.com/palerdot/svelte-speedometer/blob/master/README.md

This snippet demonstrates the basic initialization of the Svelte Speedometer component with no additional configurations. It serves as a starting point for using the component.

```javascript
<Speedometer />
```

--------------------------------

### Svelte Speedometer: Basic Configuration Example

Source: https://github.com/palerdot/svelte-speedometer/blob/master/README.md

This example shows how to configure the Svelte Speedometer with common props like maxValue, value, needleColor, startColor, segments, and endColor. This allows for simple customization of the speedometer's appearance and range.

```javascript
<Speedometer
  maxValue={500}
  value={473}
  needleColor="red"
  startColor="green"
  segments={10}
  endColor="blue"
/>
```

--------------------------------

### Install svelte-speedometer using pnpm

Source: https://github.com/palerdot/svelte-speedometer/blob/master/README.md

Installs the svelte-speedometer component library using pnpm. This command is used to add the gauge component to your Svelte project. pnpm is known for its efficient disk space usage and faster installs.

```bash
pnpm add svelte-speedometer
```

--------------------------------

### Import and Use Speedometer Component in Svelte

Source: https://github.com/palerdot/svelte-speedometer/blob/master/README.md

Demonstrates how to import and use the Speedometer component within a Svelte application. After installation, import the component and then include it in your Svelte template. This example shows the basic usage without any custom props.

```javascript
// import the component
import Speedometer from "svelte-speedometer"
// and just use it
<Speedometer />
```

--------------------------------

### Install svelte-speedometer using yarn

Source: https://github.com/palerdot/svelte-speedometer/blob/master/README.md

Installs the svelte-speedometer component library using yarn. This command adds the gauge component to your Svelte project's dependencies. It's an alternative to npm for package management.

```bash
yarn add svelte-speedometer
```

--------------------------------

### No Segment Labels for Minimalist Design

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Explains how to hide all segment labels by setting `maxSegmentLabels` to 0, achieving a cleaner, minimalist gauge appearance. This example also demonstrates custom start, end, and needle colors.

```javascript
<Speedometer
  maxSegmentLabels={0}
  segments={4}
  value={333}
  startColor="#2E3440"
  endColor="#4C566A"
  needleColor="#D8DEE9"
/>
```

--------------------------------

### Responsive Speedometer with Fluid Width

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Make the speedometer component adapt to the width of its parent container for responsive design. This example wraps the speedometer in a div with a specified width and height, enabling fluid width for the gauge.

```html
<div style="width: 500px; height: 300px; background: #EFEFEF">
  <Speedometer
    fluidWidth={true}
    minValue={100}
    maxValue={500}
    value={473}
    needleColor="steelblue"
  />
</div>
```

--------------------------------

### Configure Speedometer Value and Appearance

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Customize the speedometer's maximum value, current value, and color scheme. This example sets the max value to 500, current value to 473, uses a violet needle, and defines start and end colors with 10 segments.

```html
<Speedometer
  maxValue={500}
  value={473}
  needleColor="violet"
  startColor="tomato"
  endColor="lightgreen"
  segments={10}
/>
```

--------------------------------

### TypeScript Type Definitions for Configuration

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Illustrates using TypeScript enums and types for type-safe configuration of the Svelte Speedometer component. This example includes custom segment labels with specific positions, colors, and font sizes, along with transition effects.

```typescript
import Speedometer, {
  Transition,
  CustomSegmentLabelPosition,
  type Props,
  type CustomSegmentLabel
} from "svelte-speedometer"

const customLabels: CustomSegmentLabel[] = [
  {
    text: "Low",
    position: CustomSegmentLabelPosition.Inside,
    color: "#555",
    fontSize: "14px"
  }
]

<Speedometer
  value={333}
  needleTransition={Transition.easeElastic}
  customSegmentLabels={customLabels}
/>
```

--------------------------------

### Custom Font Sizes and Padding

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Details how to adjust typography and spacing for labels and values by customizing font sizes, font weights, and horizontal/vertical padding. This example also shows an alternative template string for the current value.

```javascript
<Speedometer
  value={333}
  labelFontSize="31px"
  valueTextFontSize="37px"
  valueTextFontWeight="500"
  paddingHorizontal={17}
  paddingVertical={17}
  currentValueText="Value: ${value}"
/>
```

--------------------------------

### Control Needle Animation Speed and Easing

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Configure the duration and easing function for the needle's transition animation when the value changes. This example sets the transition duration to 4000 milliseconds and uses the 'easeElastic' easing function.

```html
<Speedometer
  value={333}
  needleColor="steelblue"
  needleTransitionDuration={4000}
  needleTransition="easeElastic"
/>
```

--------------------------------

### Custom Segment Value Formatter Function

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Apply a custom JavaScript function to format the text displayed for each segment value. This example defines a function that returns different emojis based on the value range.

```javascript
function segmentValueFormatter(value) {
  if (value < 200) return `${value} 😒`
  if (value < 400) return `${value} 😐`
  if (value < 600) return `${value} 😌`
  if (value < 800) return `${value} 😊`
  if (value < 900) return `${value} 😉`
  return `${value} 😇`
}
```

```html
<Speedometer
  value={333}
  segmentValueFormatter={segmentValueFormatter}
  currentValueText="Current Value: ${value}"
  paddingHorizontal={35}
/>
```

--------------------------------

### Speedometer with Custom Segment Stops and Labels

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Configure custom breakpoints for speedometer segments and define the number of visible segment labels. This example sets custom stops at specific values, uses a set of segment colors, and limits to 5 segment labels.

```html
<Speedometer
  customSegmentStops={[0, 500, 750, 900, 1000]}
  segmentColors={["firebrick", "tomato", "gold", "limegreen"]}
  value={333}
  needleHeightRatio={0.7}
  maxSegmentLabels={5}
/>
```

--------------------------------

### Define Custom Segment Colors for Speedometer

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

This example demonstrates how to set specific colors for each segment of the speedometer gauge, overriding the default gradient. It uses 5 segments with custom hex color codes and a steelblue needle.

```html
<Speedometer
  value={333}
  segments={5}
  segmentColors={[
    "#bf616a",
    "#d08770",
    "#ebcb8b",
    "#a3be8c",
    "#b48ead"
  ]}
  needleColor="steelblue"
/>
```

--------------------------------

### Gradient Like Effect with Many Segments in Svelte Speedometer

Source: https://github.com/palerdot/svelte-speedometer/blob/master/README.md

Demonstrates how to achieve a gradient-like visual effect by using a large number of segments combined with the 'maxSegmentLabels' configuration. This setup is useful for creating smooth color transitions across the speedometer face.

```javascript
<Speedometer
  value={333}
  maxSegmentLabels={5}
  segments={1000}
/>
```

--------------------------------

### Format Speedometer Value with d3-format

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Use d3-format specifiers to format the displayed numeric value on the speedometer. This example uses the 'd' specifier for integer display, along with custom segment stops and colors.

```html
<Speedometer
  maxValue={150}
  value={70.7}
  valueFormat="d"
  customSegmentStops={[0, 50, 70, 90, 150]}
  segmentColors={["#bf616a", "#d08770", "#ebcb8b", "#a3be8c"]}
/>
```

--------------------------------

### Customize Current Value Text Display

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Modify the text displayed below the needle, which typically shows the current value. This example customizes the text to 'Current Value: ${value}', indicating where the current value will be inserted.

```html
<Speedometer
  value={333}
  needleTransitionDuration={4000}
  needleTransition="easeElastic"
  currentValueText="Current Value: ${value}"
/>
```

--------------------------------

### Speedometer with Custom Segment Text Labels

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Customize the text labels displayed on the speedometer segments along with their positioning, color, and font size. This example shows custom labels like 'Very Bad' to 'Very Good' positioned inside the ring.

```html
<Speedometer
  value={777}
  currentValueText="Happiness Level"
  customSegmentLabels={[
    {
      text: "Very Bad",
      position: "INSIDE",
      color: "#555"
    },
    {
      text: "Bad",
      position: "INSIDE",
      color: "#555"
    },
    {
      text: "Ok",
      position: "INSIDE",
      color: "#555",
      fontSize: "19px"
    },
    {
      text: "Good",
      position: "INSIDE",
      color: "#555"
    },
    {
      text: "Very Good",
      position: "INSIDE",
      color: "#555"
    }
  ]}
  ringWidth={47}
  needleTransitionDuration={3333}
  needleTransition="easeElastic"
  needleColor="#90f2ff"
/>
```

--------------------------------

### Running Svelte Speedometer Tests

Source: https://github.com/palerdot/svelte-speedometer/blob/master/README.md

Provides instructions on how to run the test suite for the Svelte Speedometer component using npm or yarn. The tests are written using the '@testing-library/svelte' library.

```javascript
// navigate to root folder and run
npm test
// or 'yarn test' if you are using yarn
```

--------------------------------

### Custom Placeholder Style for Template Strings

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Demonstrates how to use a custom placeholder syntax (e.g., '#{value}') for the current value text to avoid ESLint warnings. This allows for flexible string formatting of the displayed value.

```javascript
<Speedometer
  value={333}
  needleColor="steelblue"
  currentValueText="Current Value: #{value}"
  currentValuePlaceholderStyle="#{value}"
/>
```

--------------------------------

### Import and Render Basic Speedometer Component

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

This snippet shows how to import the Speedometer component from the library and render it with default settings. It creates a semi-circular gauge with a range from 0 to 1000.

```javascript
import Speedometer from "svelte-speedometer"

<Speedometer />
```

--------------------------------

### Gradient Effect with Many Segments

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Illustrates creating a smooth gradient effect by using a large number of segments with limited labels. This technique enhances the visual appeal by simulating a continuous color transition.

```javascript
<Speedometer
  needleHeightRatio={0.7}
  maxSegmentLabels={5}
  segments={5555}
  value={333}
/>
```

--------------------------------

### Needle Height and Font Size Configuration

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Shows how to configure the needle height as a ratio of the gauge's radius and customize the font sizes for both the segment labels and the current value text. This allows for fine-tuning the visual appearance of the speedometer.

```javascript
<Speedometer
  value={333}
  needleHeightRatio={0.5}
  labelFontSize="15px"
  valueTextFontSize="23px"
/>
```

--------------------------------

### Force Render on Props Change

Source: https://context7.com/palerdot/svelte-speedometer/llms.txt

Demonstrates how to force a complete re-rendering of the component when properties change, rather than just animating the value. This can be useful for ensuring visual consistency when multiple properties are updated simultaneously.

```javascript
<Speedometer
  forceRender={true}
  segments={15}
  width={500}
  height={500}
  value={333}
/>
```

--------------------------------

### Custom Segment Labels in Svelte Speedometer

Source: https://github.com/palerdot/svelte-speedometer/blob/master/README.md

Demonstrates how to use the 'customSegmentLabels' prop to define text, position, font size, and color for individual segments. The prop accepts an array of CustomSegmentLabel objects. Incorrect positioning values will be ignored.

```javascript
  // 'customSegmentLabels' prop takes an array of 'CustomSegmentLabel' Object
  /*
  type CustomSegmentLabel = {
    text?: string
    position?: OUTSIDE/INSIDE
    fontSize?: string
    color?: string
  }
  */

  <Speedometer
    value={777}
    currentValueText="Happiness Level"
    customSegmentLabels={[
      {
        text: "Very Bad",
        position: "INSIDE",
        color: "#555",
      },
      {
        text: "Bad",
        position: "INSIDE",
        color: "#555",
      },
      {
        text: "Ok",
        position: "INSIDE",
        color: "#555",
        fontSize: "19px",
      },
      {
        text: "Good",
        position: "INSIDE",
        color: "#555",
      },
      {
        text: "Very Good",
        position: "INSIDE",
        color: "#555",
      },
    ]}
  />
```

--------------------------------

### Fluid Width Configuration in Svelte Speedometer

Source: https://github.com/palerdot/svelte-speedometer/blob/master/README.md

Illustrates how to make the Svelte Speedometer take the full width of its parent container using the 'fluidWidth' prop set to true. Any explicit width passed to the Speedometer component will be ignored in this mode. This is useful for responsive designs.

```javascript
// Speedometer will take the width of the parent div (500)
// any width passed will be ignored
<div style={{
  width: "500px",
  height: "300px",
  background: "#EFEFEF"
}}>
  <Speedometer
    fluidWidth={true}
    minValue={100}
    maxValue={500}
    value={473}
    needleColor="steelblue"
  />
</div>
```

--------------------------------

### Custom Segment Stops in Svelte Speedometer

Source: https://github.com/palerdot/svelte-speedometer/blob/master/README.md

Shows how to define custom segment boundaries using the 'customSegmentStops' prop. The 'segmentColors' prop is used to assign colors to these segments. The 'segments' prop is ignored when 'customSegmentStops' is provided. The number of segments will be one less than the number of stop values.

```javascript
  <Speedometer
    customSegmentStops={[0, 500, 750, 900, 1000]}
    segmentColors={["firebrick", "tomato", "gold", "limegreen"]}
    value={333}
  />
  // `segments` prop will be ignored since it will be calculated from `customSegmentStops`
  // In this case there will be `4` segments (0-500, 500-750, 750-900, 900-1000)
/>
```

--------------------------------

### Svelte Speedometer: Custom Segment Colors

Source: https://github.com/palerdot/svelte-speedometer/blob/master/README.md

This snippet illustrates how to apply custom colors to the segments of the Svelte Speedometer. It uses the 'segmentColors' prop, which accepts an array of color codes. When 'segmentColors' is provided, 'startColor' and 'endColor' props are ignored.

```javascript
<Speedometer
  value={333}
  segments={5}
  segmentColors={[
    "#bf616a",
    "#d08770",
    "#ebcb8b",
    "#a3be8c",
    "#b48ead",
  ]}
  // startColor will be ignored
  // endColor will be ignored
/>
```

--------------------------------

### Force Re-render Component on Prop Change in Svelte Speedometer

Source: https://github.com/palerdot/svelte-speedometer/blob/master/README.md

Explains how to force a complete re-render of the Svelte Speedometer component when props change, overriding the default behavior of only animating the 'value' prop. Set the 'forceRender' prop to 'true' to enable this behavior, which is useful for changes affecting appearance like segments or colors.

```javascript
// By default, when props change, only the value prop is updated and animated. 
// This is to maintain smooth visualization and to ignore breaking appearance changes like segments, colors etc. 
// You can override this behaviour by giving forceRender: true

// render a component initially
<Speedometer
  width={200}
  height={200}
/>
// Now, if given forceRender: true, and change the appearance all together, the component will rerender completely on props change
<Speedometer
  forceRender={true}
  segments={15}
  width={500}
  height={500}
/>
```

--------------------------------

### Needle Height Configuration in Svelte Speedometer

Source: https://github.com/palerdot/svelte-speedometer/blob/master/README.md

Shows how to adjust the needle's length using the 'needleHeightRatio' prop. This prop accepts a value between 0 and 1, where 0 means the needle has no height and 1 means it extends to the maximum possible length within the speedometer's radius.

```javascript
<Speedometer
  value={333}
  needleHeightRatio={0.7}
/>

You can give a value between `0` and `1` to control the needle height.
```

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