28 lines
991 B
Markdown
28 lines
991 B
Markdown
# Field Arithmetic
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Apply a point-wise arithmetic operation to two DATA_FIELDs of the same resolution. Equivalent to gwy_data_field_sum_fields / subtract_fields / multiply_fields / divide_fields / min_of_fields / max_of_fields / hypot_of_fields.
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## Inputs
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| Name | Type | Required | Description |
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|------|------|----------|-------------|
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| field_a | DATA_FIELD | Yes | First operand |
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| field_b | DATA_FIELD | Yes | Second operand |
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## Outputs
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| Name | Type | Description |
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|------|------|-------------|
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| result | DATA_FIELD | Result of the arithmetic operation (inherits metadata from field_a) |
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## Controls
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| Name | Type | Default | Description |
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|------|------|---------|-------------|
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| operation | dropdown | add | Element-wise operation: add, subtract, multiply, divide, min, max, or hypot (√(a²+b²)) |
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## Limitations
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- Both fields must have exactly the same pixel dimensions; mismatched sizes raise an error.
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- divide may produce NaN or Inf pixels where field_b is zero.
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