Beginning Plotting

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Introduction

This use case shows a user how to plot cell and point data. Plotting can be along a line that cuts through your data, or a location with respect to time.

Plot along a line

  • Open can.exo. Turn on all data. Apply.
  • Drag the can around with the left mouse button until you can see the can.
  • Filter→Data Analysis→Plot Over Line. Drag the top of the line to intersect the top of the can. Note that hitting the p key will also place the line on the surface of your object. Apply.
  • Display tab. Unselect all variables except DISPL:Magnitude.
  • Right click on the vertical scale→Properties→Left Axis→Layout and select Specify the Axis Range. Input a Minimum of 0.0 and Maximum of 20.0.
  • Right click on the horizontal scale→Properties→Bottom Axis→Layout and select Specify the Axis Range. Input a Minimum of 0.0 and Maximum of 20.0.
  • Play the animation forward, and notice what happens to the plot.


Beginning plotting 1.png


Plot point over time

  • Open can.exo. Turn on all data. Apply.
  • Drag the can around with the left mouse button until you can see the can.
  • We want to plot a point over time. First, we need to select a point.
  • Note: Turn the Style Representation to Surface With Edges, allowing you to see the points (nodes).
  • Click on Select Points On icon. Then, rubber band select around a point.
  • Filters→Data Analysis→Plot Point Over Time. Apply.
  • Display tab, unselect Point Coords, ACCL and VEL.
  • You now have a plot of the displacement. at your point.
  • Extra Credit – Using Select Cells On icon, and the Plot Cell Over Time, plot EQPS over time.


Beginning plotting 2.png

Plot two variables at same time

  • Follow the steps for Plot Point over time, as described above.
  • On the Display tab, only display variables VEL (Magnitude) and ACCL (Magnitude).
  • Select the line that says ACCL (Magnitude), causing this row to turn gray.
  • At the bottom of the Display tab, change Chart Axes to Bottom-Right.


Beginning plotting 3.png


Acknowledgements

Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration under contract DE-AC04-94AL85000.