v.to.points
How GRASS runs Extract Vertices: v.to.points.
| Engine | GRASS |
|---|---|
| Tool name | v.to.points |
| Interface | cli |
| Implements | Extract Vertices |
| Variant of | grass-v-to-points |
| Preset | {"use":"vertex"} |
| Documentation | Not stated |
| Effects | modifies input: no, network: no |
| Notes | Not stated |
| Status | active |
Parameters
| Name | Type | Required | Default | Choices | Note |
|---|---|---|---|---|---|
input | string | yes | Not stated | Not stated | vector name |
layer | string | no | 1 | Not stated | layer name |
type | string | no | point,line,boundary,centroid,face | point, line, boundary, centroid, area, face, kernel | multiple values |
output | string | yes | Not stated | Not stated | output vector |
use | string | no | Not stated | node, start, end, vertex | Not stated |
dmax | float | no | 100 | Not stated | Not stated |
flag_i | boolean | no | Not stated | Not stated | flag -i |
flag_p | boolean | no | Not stated | Not stated | flag -p |
flag_r | boolean | no | Not stated | Not stated | flag -r |
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 |
|---|---|---|
layer | input | Not stated |
output | output | Not stated |
Differences from the operation
- Polygon outlines are boundaries without a category, which are skipped unless layer = -1, so a polygon gives only its centroid; with layer = -1 the vertices come out with categories in layer 2 only.
- use = node outputs only the ends of each line; start and end one of them.
Harvested by the grass harvester from engine version
8.5.0. Names can change when an engine is harvested again.