| 1. Load the file "isabel/data/isabel.vti". | |
| 2. Apply persistent simplification to the field "sf" with a persistence threshold of 0.04 | |
| 3. Compute the merge tree of the simplified field. | |
| 4. Save the nodes of the merge tree as "isabel/results/{agent_mode}/isabel_nodes.vtk" in legacy VTK format. | |
| This file should have two point arrays. One should be called "CriticalType" and should store the type of critical point for each node. | |
| It should follow the following convention: 0: minima. 1: 1-saddles. 2: 2-saddles. 3: maxima. 4: degenerate critical points. | |
| The other point array should be called "Scalar" and should contain the scalar field value at each point in the merge tree. | |
| 5. Save the edges of the merge tree as "isabel/results/{agent_mode}/isabel_edges.vtk" in legacy VTK format. | |
| The file should store each edge as a separate cell with type vtkLine. | |
| 6. Analyze the visualization and answer the following questions: | |
| Q1: The parent node of the leaf (377, 265, 0) has coordinates (x,y,z). What is x+y+z? | |
| (A) 627 (B) 854 (C) 992 (D) 1039 | |
| Q2: How many edges are there in the merge tree? | |
| (A) 154 (B) 195 (C) 204 (D) 254 | |
| Q3: What is the highest scalar field value of a minimum, rounded to the nearest whole number? | |
| (A) 12 (B) 26 (C) 31 (D) 58 | |
| Save the answers to the analysis questions in plain text as "isabel/results/{agent_mode}/answers.txt". |