74 lines
1.4 KiB
Markdown
74 lines
1.4 KiB
Markdown
# Lab 3: Stencil-Based Grid Subdivision
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## How to Build
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### Windows
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Use Visual Studio (Developer Command Prompt) to compile the code.
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```bat
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.\make.bat
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```
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> **Note:** `cl` is only available in the Developer Command Prompt, change the path of `VsDevCmd.bat` in `make.bat` first.
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### Linux / macOS — GCC via Makefile
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```
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make
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```
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This compiles all targets including `subdivide_grid`.
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## How to Run
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### Windows
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```bat
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subdivide_grid.exe {num_iter} {input_file}
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```
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### Linux / macOS
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```bash
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./subdivide_grid {num_iter} {input_file}
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```
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- `{num_iter}`: integer number of subdivision iterations (>= 0)
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- `{input_file}`: a `.grid2D` file
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The output file is written to the same directory as the input, with the suffix
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`-subdiv.grid2D` appended (replacing the `.grid2D` extension).
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### Optional `-off` flag
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```bash
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./subdivide_grid -off {num_iter} {input_file}
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```
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With `-off`, the program additionally writes a Geomview `.off` file named
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`{basename}-subdiv.off`.
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### Examples
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```bash
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./subdivide_grid 1 "Lab3 simple grids/grid2D-2x3-A.grid2D"
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./subdivide_grid 3 "Lab3 grids/wave-A.grid2D"
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./subdivide_grid -off 3 "Lab3 grids/sphere-A.grid2D"
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```
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## Visualization
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Convert a `.grid2D` file to Geomview `.off` format:
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```bash
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./grid2off {input.grid2D}
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```
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## AI Tools Used
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**GitHub Copilot** (via VS Code) was used for:
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- Auto generating `Makefile` and this `README.md`.
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