ADCP Colour Span function
The ADCP Colour Span function allows you to adapt the number of colours in the view to the range of the actual ADCP information. For instance, if the maximum vessel velocity data will be between +2 m/s and —2 m/s you can set this as your maximum colour
range. The velocity measurement (ADCP) view will then offer the best colour representation of the data with the best possible resolution.
Prerequisites
This function is available only when ADCP functionality is activated.
How to open
You open this function from the Active menu.
Description
It is important that the colours used in the velocity measurement (ADCP) views is adapted to the actual velocity values. The intensity of the colour reflects the magnitude of the velocity. If the color range used is larger than the data would indicate, you may lose valuable information abou the velocity differences. If the opposite is the case, it will also reduce the quality of the information.
The velocity measurement (ADCP) views provided by the EK80 system present the data using colours. This information is shown using either a bipolar representation or a gradient single colour representation. The colour and/or the saturation of a colour indicates the magnitude of the ADCP data. To achieve the best possible presentation of mutliple variations in velocity and/or speed, the maximum values for the colour
scale must harmonize with the highest magnitudes in the ADCP data. The maximum values representing the most saturated colours are defined with the ADCP Colour Span function.
The colour range can be set individually for each of the velocity measurement (ADCP) views. Click in the view you want to activate. Use the ADCP Colour Span function to set the colour range for this particular view.
Note
The ADCP colour span can be set individually for each of the velocity views.
To change the setting, move the cursor to either side of the button. Select the left side of the button to decrease the value. Select the right side of the button to increase the value. Select the middle of the button to open it.