Measurand provides the SAAView application within SAASuite for viewing ShapeArray data. SAAView is capable of displaying many views of the data collected from ShapeArrays installed in many different orientations, including horizontal, vertical, and convergence. To view ShapeArray data in SAAView, it must first be processed by the SAACR_raw2data utility.
Figure 1: Measurand's SAAView
Opening Data Files
SAACR_raw2data will generate a multi_saa_allcart.mat file containing the data from the ShapeArray converted to standard engineering units. To open this data file for viewing, click the CR_Logger option from the Select Project list, navigate to the multi_saa_allcart.mat file in your project folder, and click the Open button.
Figure 2: Opening a multi_saa_allcart.mat data file in SAAView
When you first open the multi_saa_allcart.mat file, you will be presented with two previews of the deformation data from the ShapeArray, as shown in Figure 1 above: an unfiltered view of the data and a filtered view of the data. You can see a more detailed view of the data by clicking on the ViewUnfiltered or ViewFiltered buttons. Clicking on either of these buttons will open the respective Data View window where the data can be manipulated and viewed in more detail.
Figure 3: The Data View window in SAAView: (A) X axis data, (B) Y axis data, (C) X vs. Y @ Selected Elevations, and (D) Variables vs. T @ Selected Vertex Elevations
In the Data View windows, data from the ShapeArray is primarily presented in four separate graphs:
- X axis data - Graphs X-axis data for the selected view of data (Figure 3.A)
- Y axis data - Graphs Y-axis data for the selected view of the data (Figure 3.B)
- X vs. Y @ Selected Elevations - Graphs data for the selected vertices in an XY plane (Figure 3.C)
- Variables vs. T @ Selected Vertex Elevations - Graphs the changes in X and Y data over time (Figure 3.D)
The data displayed in these graphs changes based on the visualization selected for the data from the View menu. Deformation (CumDisplacement) dx, dy is the default visualization shown when you first open the Data View window. The following visualizations for the data can be selected from the View menu.
- Deformation (CumDisplacement) dx, dy - Cumulative Displacement is also referred to as Deformation. Displacement is calculated from the difference between a vertex’s initial deviation in a baseline reading and the deviation at the time of the new reading. Cumulative displacement is the sum of all displacements of all segments from the zero position to the current elevation. This X and Y graphs shows the distance each vertex has moved from the baseline position.
- Absolute Shape (CumDeviation) x, y - Cumulative Deviation is also known as Absolute Shape. Cumulative Deviation is the sum of all deviations of all segments from the zero position to the current elevation. This effectively provides you with a view of the ShapeArray’s shape within the borehole.
- Incremental Deviation diffx, diffy - Each vertex’s deviation is a plot point on the X and Y graphs. This shows the distance from an absolutely vertical position to the segment’s top vertex at each elevation.
- Magnitude sqrt(dx^2+dy^2) - The magnitude of deformation, regardless of direction, is plotted in the X graph. The Y graph will always display a single straight line.
- Incremental Displacement d(diffx), d(diffy) - Displacement is calculated from the difference between a vertex’s initial deviation in a baseline reading and the deviation at the time of the new reading. The X and Y graphs shows the displacement of each vertex.
- Shear (IncDisplacement / Length, %) - The X and Y graphs show Displacement over Segment Length divided by Percentage.
- Temperature - The temperature measured at each temperature sensor. The same data appears in both the X and Y graphs.
Working with Data
When you are viewing data in the Unfiltered or Filtered Data View windows, you can affect how the data is displayed in the X vs. Y at Selected Elevations and the Variables vs. T at Selected Vertex Elevations graphs. Data displayed in these graphs are controlled by the elevations selected in the X and Y graphs by dragging the dotted yellow lines from the top and bottom of the Y and Y graphs to desired elevations. The dotted yellow line will snap to the nearest vertex when you release it.
Figure 4: The dotted yellow lines in the X and Y data graphs are used to select elevations of interests
Right-clicking on the dotted yellow lines in the X and Y graphs will provide options for limiting the view limits of the data, changing the reference vertex, or placing user lines along the sides of the graphs. More information about the context menu options is available in the SAAView Manual.
Two dotted yellow lines also appear at each end of the Variables vs. T at Selected Vertex Elevations graph. These lines can be used to highlight two specific samples in the X and Y graphs. Right clicking on the dotted yellow lines will present options for limiting the data displayed to a specific range (Time Subset), adding polynomial fit lines to the graph, or configure sparse settings. More information about the context menu options is available in the SAAView Manual.
Figure 5: The dotted yellow lines in the Variables vs. T @ Selected Vertex Elevations graph are used to highlight specific data samples, select time subsets, and configure sparse settings