# Types
### Image Types
#### `ImageInterpolation`
```typescript
enum ImageInterpolation {
NEAREST = 'NEAREST',
LINEAR = 'LINEAR',
CUBIC = 'CUBIC',
}
```
Image interpolation method.
* `NEAREST` - no interpolation, fastest
* `LINEAR` - medium interpolation quality
* `CUBIC` - best interpolation quality, slowest
#### `ImageType`
```typescript
enum ImageType {
SCALAR = 'SCALAR',
VECTOR = 'VECTOR',
}
```
Image type.
* `SCALAR` - contains a single variable
* `VECTOR` - contains two variables, `u` and `v` vector components
#### `ImageUnscale`
```typescript
type ImageUnscale = [min: number, max: number] | null;
```
Value bounds to unscale image data to original data, or null if image contains original data already and no unscaling is needed.
#### `ImageProperties`
```typescript
interface ImageProperties {
image: TextureData;
image2: TextureData | null;
imageSmoothing: number;
imageInterpolation: ImageInterpolation;
imageWeight: number;
imageType: ImageType;
imageUnscale: ImageUnscale;
imageMinValue: number | null;
imageMaxValue: number | null;
}
```
Properties to render a single image.
#### `DirectionType`
```typescript
enum DirectionType {
INWARD = 'INWARD',
OUTWARD = 'OUTWARD',
}
```
Direction type to be used for formatting.
* `INWARD` - formats direction inwards from outside to the current point
* meteorological - wind, waves
* `OUTWARD` - formats direction outwards from the current point to outside
* climatological data - currents
#### `DirectionFormat`
```typescript
enum DirectionFormat {
VALUE = 'VALUE',
CARDINAL = 'CARDINAL',
CARDINAL2 = 'CARDINAL2',
CARDINAL3 = 'CARDINAL3',
}
```
Direction format to be used for formatting.
* `VALUE` - formats direction as a value in degrees
* `CARDINAL` - formats direction as a 1-letter cardinal (4 possible values)
* N, E, S, W
* `CARDINAL2` - formats direction as a 2-letter cardinal (8 possible values)
* N, NE, E, SE, S, SW, W, NW
* `CARDINAL3` - formats direction as a 3-letter cardinal (16 possible values)
* N, NNE, NE, ENE, E, ESE, SE, SSE, S, SSW, SW, WSW, W, WNW, NW, NNW
#### `Placement`
```typescript
enum Placement {
BOTTOM = 'BOTTOM',
TOP = 'TOP',
RIGHT = 'RIGHT',
LEFT = 'LEFT',
}
```
Tooltip control placement from the mouse cursor position.
### Load Types
#### `TextureData`
```typescript
interface TextureData {
data: Uint8Array | Uint8ClampedArray | Float32Array;
width: number;
height: number;
}
```
Texture data to be used as input to raster rendering layers.
#### `UnitFormat`
```typescript
interface UnitFormat {
unit: string;
scale?: number;
offset?: number;
decimals?: number;
}
```
Format definition to be used for formatting raw values with units.
#### `RasterPointProperties`
```typescript
interface RasterPointProperties {
value: number;
direction?: number;
}
```
Raster point properties for a particular position.
### Datetime Types
#### `DatetimeISOString`
```typescript
type DatetimeISOString = string;
```
Valid ISO 8601 datetime.
#### `DatetimeISOStringRange`
```typescript
type DatetimeISOStringRange = [start: DatetimeISOString, end: DatetimeISOString];
```
Valid ISO 8601 datetime range.
#### `OpenDatetimeISOStringRange`
```typescript
type OpenDatetimeISOStringRange = [start: DatetimeISOString | null, end: DatetimeISOString | null];
```
Valid ISO 8601 datetime range. Null start/end represent an open end.
#### `DurationISOString`
```typescript
type DurationISOString = string;
```
Valid ISO 8601 duration.
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