# Slot: placeholder 


_Honest-placeholder text drawn when this panel's data is missing or degenerate (never a source-replot). Setting it wraps the draw so a missing container falls back to this label instead of erroring._



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



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

| Name | Description | Modifies Slot |
| --- | --- | --- |
| [Panel](../classes/Panel.qmd) | One cell of the figure |  no  |






## Properties

### Type and Range

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

### Cardinality and Requirements

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

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












## Identifier and Mapping Information





### Schema Source


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




## Mappings

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




## LinkML Source

<details>
```yaml
name: placeholder
description: Honest-placeholder text drawn when this panel's data is missing or degenerate
  (never a source-replot). Setting it wraps the draw so a missing container falls
  back to this label instead of erroring.
from_schema: https://w3id.org/tvbo/figure
rank: 1000
owner: Panel
domain_of:
- Panel
range: string

```
</details></div>