The nodal solutions are identified as “Points data”, as opposed to “Cell data”, which refers to solutions on elements. You can switch the field visualized in the pos-processor using the dropdown menu with the field name. Example: “T [Points Data]”.
To make the coordinates vs nodal results plot you will have to make use of Paraview. In there, you have some options to achieve it, but my preference is to use a spreadsheet program (Excel, Libreoffice, etc.). For that:
- Visualize in the Paraview 3D viewer the relevant field and “Surface With Mesh” or “Points”; this is to be able to see the points location.
- Use the “Select points on” tool to select the desired points to extract data. This is located among the small buttons on top of the 3D scene.
- Create a Spreadsheet view. You do this by “splitting” the view using a button on the top left of the scene which is a rectangle with a line in the middle (splitting the rectangle), and form the options displayed, the last button says “Spreadsheet view”.
- On the spreadsheet view, choose to display only data on the selected points with the button “Display only selected”. This one has a square made of a dotted line and a little cursor.
- Export the data as a CSV file, with the command “Save Data” of the “File” menu. Be sure that the spreadsheet view is selected.
- Open the CSV file with your spreadsheet program. There you can order by coordinates and plot what you want. The coordinates are in the “points” array.
Hope it helps.