Use flow styling in scenes

In Layer style , you can apply a flow style to imagery and tiled imagery layers that visualizes the flow of raster data that contains magnitude and direction. Visualizing raster dataset flows is useful in fields such as meteorology, climatology, hydrology, and oceanography. For example, you can use this style to display ocean or wind currents as streaming lines, in which the direction indicates the direction of flow; and the length, color, and speed of the flowlines indicate the magnitude, or power, of the current.

To use flow styling on a layer, complete the following steps:

1. Verify that you are signed in to your account and open Scene Viewer.
2. On the Designer toolbar, click Layer Manager to open the Layer Manager pane.
3. Click the layer name or Options and select Layer style to open a layer.
4. Click Select to apply the style to the layer in the scene.
5. Click Options to open the Style Flow style pane.
6. Use the sliders to interactively adjust the visualization properties of the animation.
   • Speed—Change the speed of the animated streamlines relative to the simulation time by moving the slider from slow to fast.
   • Density—Change the relative density of the number of streamlines by moving the slider from low to high.
   • Length—Change the approximate visible length of the streamline by moving the slider from short to long.
7. For Width, set the width of the streamline trail lines in pixels.
8. For Flow direction, define the flow direction of the data as either To or From.

   The flow direction can be modified to display meteorological data (the direction it is flowing from) or climatological data (the direction it is flowing to).

9. For Color, choose the color of your flow animation.
   1. Single color—Click the color box and do any of the following:

      • Click  Fill color to see the fill color options:
        • Choose a color in the color picker.
        • Create a custom color by the Hex, RGB, or HSV values.

        You can choose the most recent fill colors on the side.

      • Click Fill transparency to set the transparency with the slider or by entering values.
      • Click Done to apply the settings and return to the previous pane.

   2. Color ramp—Click the color ramp representing magnitude values and do any of the following:

      • Click  Colors to see the color ramp options.
      • Under Category, select the types of color ramps from which you want to choose.
      • Click Flip ramp colors to flip the colors.
      • Click Fill transparency to set the transparency with the slider or by entering values.
      • Click Done to return to the previous pane.

      Minimum and maximum magnitude values of your data are assigned to the color ramp you choose. The colors in a color ramp can be distributed across the entire range of magnitude values, or a portion of the magnitude values. Use the sliders to adjust the upper and lower range of magnitude values to be color mapped. A mapped attribute is automatically assigned in Mapped Attribute.

10. On the Designer toolbar, click Save to save the style changes to the scene.