| 参数 | 说明 | 数据类型 |
raster | The input raster. | Raster |
is_uv_components | Specifies whether the input components represent U-V, or magnitude and direction. - True—The input data represents U-V components.
- False—The input data represents magnitude and direction components. This is the default.
(默认值为 None) | Boolean |
reference_system | Specifies how the direction component is measured. - 1—Direction is measured in arithmetic coordinates. 0° points due east, and 90° points due north.
- 2—Direction is measured in geographic coordinates. 0° points due north, and 90° points due east.
(默认值为 2) | Integer |
mass_flow_angle_representation | Specifies the angle of mass flow. - 0—From—The mass is flowing along the angle and moving toward the origin of the reference system. This is sometimes referred to as the meteorological convention.
- 1—To—The mass is flowing along the angle and moving away from the origin of the reference system. This is sometimes referred to as the oceanographic convention.
(默认值为 From) | Integer |
calculation_method [calculation_method,...] | Specifies the thinning method to be used to calculate the magnitude and direction value of a tile. - Vector Average—The following calculation occurs for each pixel: convert direction and magnitude to U and V components, calculate the averages of U and V for all pixels in a tile, and then convert the average U and average V back to direction and magnitude.
- Nearest neighbor—Uses the value from the pixels closest to the center of the tile.
- Bilinear—Bilinear resampling will be performed on the tile.
- Cubic—Cubic convolution resampling will be performed on the tile.
- Minimum—The minimum pixel value of the tile.
- Maximum—The maximum pixel value of the tile.
(默认值为 Vector Average) | String |
symbology_name [symbology_name,...] | Specifies the name of the symbol depicting direction and magnitude. - Single Arrow—A single arrow depicting direction and magnitude.
- Wind Barb—Wind barbs indicating wind direction and magnitude.
- Ocean Current—Ocean current symbol indicating current and magnitude.
(默认值为 Single Arrow) | String |