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Answers for “在这个模型中,单元格何时变为建成区?”

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For a selected test pixel, the algorithm compares the corresponding values in the auxiliary layers against user-defined thresholds. If the threshold requirement is met, the cell value is changed to 1, interpreted as built-up growth.

Conditions: A test pixel is selected from the main raster.; Each relevant auxiliary layer value is compared with its user-defined threshold.; Transition occurs only when the threshold requirement is satisfied.

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In Cellular Automata (CA) modeling, a 'kernel' is a moving window of a defined size (e.g., 3x3) that scans across the raster grid. It evaluates the current cell's state in conjunction with the states of its neighbors within the kernel to determine the cell's future state.

Conditions: Kernel size must be defined (e.g., 3x3).; Applies to raster grids where cell states depend on local neighborhoods.

Meet the concept

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The model uses a main raster plus four auxiliary raster layers: Road distance, CBD distance, Population density, and Slope. Each layer is represented as a small matrix aligned with the main raster so that the same row and column can be compared cell by cell.

Conditions: All displayed matrices have the same number of rows and columns.; The auxiliary layers are used as inputs for threshold checking.