# Reference Lines

The Reference Lines feature in Powerviz heatmaps allows you to add horizontal or vertical lines to highlight specific thresholds or benchmarks within the heatmap. This helps in easily identifying critical values or trends, enhancing the overall data analysis.

### Line Option

#### X-Axis and Y-Axis

* At: Define the reference line based on Category Value or Ranking.
* Category: Show all added category levels.
* Ranking: Input the ranking number to position the reference line.

#### Line Style

* Choose from Solid, Dashed, or Dotted.
* Width: Set the width of the reference line.
* Color: Choose the color for the reference line.
* Line Position: Set the line position to Right, Center, or Left.

### Label Styles

#### Label Name

* Specify the name for the reference line label.
* Color: Choose the color for the label text.
* Background Color: Set the background color for the label.
* Font Family: Choose the font family for the label text.
* Styling: Apply Bold, Italic, or Underline.
* Auto Font Size: Disable to set a manual font size.

#### Position

* For X-Axis: Choose Right or Left.
* For Y-Axis: Choose Top or Bottom.

#### X-Axis Alignment

* Set alignment to Top, Center, or Bottom.
* Orientation: Choose between Vertical and Horizontal.

#### Y-Axis Alignment

* Set alignment to Right, Center, or Left.

### Label Border

#### Border Radius

* Choose the border-radius style: Sharp, Rounded, or Custom.
* Width: Set the border width.
* Border Color: Choose the color for the border.

<figure><img src="/files/nSrJCFYi7QKW0ItQcTSG" alt=""><figcaption></figcaption></figure>

Example

<figure><img src="/files/64a2KIult9DcslP73vLH" alt=""><figcaption></figcaption></figure>


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