new WindDataProvider(json)
Provides Wind Data Vectors from JSON file
Parameters:
| Name | Type | Description |
|---|---|---|
json |
String | The wind data file. |
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Members
(readonly) ready :Boolean
Gets a value indicating whether or not the provider is ready for use.
Type:
- Boolean
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(readonly) readyPromise :Promise.<Boolean>
Gets a promise that resolves to true when the provider is ready for use.
Type:
- Promise.<Boolean>
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Methods
(private) bilinearInterpolateVector()
Interpolates vector bilinear for accessing wind data
(Ref: https://github.com/cambecc/earth)
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Returns:
wind in u, v direction and length of (u,v)
(private) createBuilder()
Loads json for wind data
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(private) createGrid(builder)
creates the grid and adds interpolate function
Parameters:
| Name | Type | Description |
|---|---|---|
builder |
Object | Builder of a json file |
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dataSource(header) → {String}
Returns the data source of a given header
(Ref: https://github.com/cambecc/earth)
Parameters:
| Name | Type | Description |
|---|---|---|
header |
Object | header of json file |
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Returns:
data source as String
- Type
- String
(private) floorMod(a, n)
Modulo calculation, that makes sure the returned value is between [0, n)
(Ref: https://github.com/cambecc/earth)
Parameters:
| Name | Type | Description |
|---|---|---|
a |
number | number to be calculated |
n |
number | number for modulo calculation |
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interpolate(λ, φ) → {list}
Returns the wind data for a given point (including interpolation)
(Ref: https://github.com/cambecc/earth)
Parameters:
| Name | Type | Description |
|---|---|---|
λ |
number | longitude in degree |
φ |
number | latitude in degree (-90,90) |
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Returns:
list with u, v and length
- Type
- list
(private) isValue(x)
Checks whether x is valid (not null and not undefined)
Parameters:
| Name | Type | Description |
|---|---|---|
x |
value to be checked |
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