# Slot: tail_x 


_Start the arrow at this x in DATA coordinates instead of at an axes-fraction offset. Pair with tail_used, which supplies the y: together they anchor the arrow's tail on a point the run computed, so a callout keeps pointing at its data when the data changes. Ignored unless tail_used is also set._



<div data-search-exclude markdown="1">



URI: [tvbo:slot/tail_x](https://w3id.org/tvbo/slot/tail_x)
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## Applicable Classes

| Name | Description | Modifies Slot |
| --- | --- | --- |
| [Annotation](../classes/Annotation.qmd) | A positioned text label on a panel, in axes-fraction coordinates |  no  |






## Properties

### Type and Range

| Property | Value |
| --- | --- |
| Range | [xsd:float](http://www.w3.org/2001/XMLSchema#float) |
| Domain Of | [Annotation](../classes/Annotation.qmd) |

### Cardinality and Requirements

| Property | Value |
| --- | --- |
### Slot Characteristics

| Property | Value |
| --- | --- |
| Owner | [Annotation](../classes/Annotation.qmd) |












## Identifier and Mapping Information





### Schema Source


* from schema: https://w3id.org/tvbo/figure




## Mappings

| Mapping Type | Mapped Value |
| ---  | ---  |
| self | tvbo:tail_x |
| native | tvbo:tail_x |




## LinkML Source

<details>
```yaml
name: tail_x
description: 'Start the arrow at this x in DATA coordinates instead of at an axes-fraction
  offset. Pair with tail_used, which supplies the y: together they anchor the arrow''s
  tail on a point the run computed, so a callout keeps pointing at its data when the
  data changes. Ignored unless tail_used is also set.'
from_schema: https://w3id.org/tvbo/figure
rank: 1000
owner: Annotation
domain_of:
- Annotation
range: float

```
</details></div>