This dialog lets you control the display of data on scatter plots on the Graph View . A scatter graph is a statistical diagram drawn to compare two sets of data. It can be used to look for a correlation between the two sets of data. It will also help to identify rogue values in related data sets.
The dialog is displayed if you right click on the Graph View and choose Create Scatter Graph from the popup menu (This menu item will only be available if there is more than one sub-plot on the graph).
The dialog is also displayed if you click Scatter View on the TVD Page of a Monitoring Survey Property Sheet.
See the following examples.
An example of the extended version of the dialog:
An example of the basic version of the dialog:
Select at least one pair of variables to display on the scatter graph. You have the option to display a second pair of variables on the same graph by checking the Show a Second Scatter Plot on the same graph box. The second plot will be shown using an alternate colour by default.
You can change the plot options in the Graph Properties dialog.
You can add additional gridlines to the view if required. Check the Horizontal Lines and/or Vertical Lines boxes. Then add one or more values for your additional gridlines. Multiple values should be separated by semi-colons.
The extended version of the Scatter Graph Dialog has additional options for collection networks. These options are only available if your primary scatter plot is Velocity against Depth or vice-versa.
If a pipe is associated with the monitoring survey, its ID appears on the dialog.
An alternative pipe ID can be specified by entering it into the edit box. If there is a pipe specified then:
To display a scatter graph:
You have the option to display a second pair of variables on the same graph
Alternatively, you can click the Scatter View button on the TVD Page of a Monitoring Survey Property Sheet. Then continue at step two above.
You can change the display options for the scatter graph. Right-click on the graph and choose Graph Properties from the popup menu. This displays the Graph Properties dialog.
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Where n = Manning roughness coefficient S = Hydraulic gradient (m/m) V = Velocity (m/s) R = Hydraulic radius = D/4 (m) |
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Where S = Hydraulic gradient (m/m) k = Hydraulic roughness (m) V = Velocity (m/s) D = Pipe internal diameter (m) g = Gravitational acceleration (m/s2) v = Kinematic viscosity of water (m2/s) |
The following example shows a scatter graph with a number of reference curves applied: