v.overlay
How GRASS runs Symmetric Difference: v.overlay.
| Engine | GRASS |
|---|---|
| Tool name | v.overlay |
| Interface | cli |
| Implements | Symmetric Difference |
| Variant of | grass-v-overlay |
| Preset | {"operator":"xor"} |
| Documentation | Not stated |
| Effects | modifies input: no, network: no |
| Notes | Not stated |
| Status | active |
Parameters
| Name | Type | Required | Default | Choices | Note |
|---|---|---|---|---|---|
ainput | string | yes | Not stated | Not stated | vector name |
alayer | string | no | 1 | Not stated | layer name |
atype | string | no | auto | line, area, auto | multiple values |
binput | string | yes | Not stated | Not stated | vector name |
blayer | string | no | 1 | Not stated | layer name |
btype | string | no | area | area | multiple values |
operator | string | yes | Not stated | and, or, not, xor | Not stated |
output | string | yes | Not stated | Not stated | output vector |
olayer | string | no | 1,0,0 | Not stated | layer name; multiple values |
snap | float | no | 1e-8 | Not stated | Not stated |
flag_t | boolean | no | Not stated | Not stated | flag -t |
flag_overwrite | boolean | no | Not stated | Not stated | flag --overwrite |
How it maps to the operation
| Operation parameter | Parameter here | Note |
|---|---|---|
a | ainput | Not stated |
b | binput | Not stated |
output | output | Not stated |
Differences from the operation
- The b input must be areas.
Harvested by the grass harvester from engine version
8.5.0. Names can change when an engine is harvested again.