tests/testthat/_snaps/simplify.md

In ateucher/rmapshaper: Client for 'mapshaper' for 'Geospatial' Operations

ms_simplify.geojson and character works with defaults

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"FeatureCollection\", \"features\": [\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-7.1549869,45.4449053],[-9.6292336,41.0325088],[-6.3787009,28.8026166],[1.8629117,35.5400723],[-7.344442,37.6863061],[-7.1549869,45.4449053]]]},\"properties\":null}\n]}"]
}

ms_simplify.geojson works with different methods

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"FeatureCollection\", \"features\": [\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-7.1549869,45.4449053],[-6.3787009,28.8026166],[1.8629117,35.5400723],[-7.1549869,45.4449053]]]},\"properties\":null}\n]}"]
}

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"FeatureCollection\", \"features\": [\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-7.1549869,45.4449053],[-17.6800154,33.0680873],[-6.3787009,28.8026166],[-7.1549869,45.4449053]]]},\"properties\":null}\n]}"]
}

exploding works with geojson

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"FeatureCollection\", \"features\": [\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[102,2],[103,2],[103,3],[102,3],[102,2]]]},\"properties\":null}\n]}"]
}

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"FeatureCollection\", \"features\": [\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[102,2],[103,2],[103,3],[102,3],[102,2]]]},\"properties\":null},\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[100,0],[101,0],[101,1],[100,1],[100,0]]]},\"properties\":null}\n]}"]
}

ms_simplify works with drop_null_geometries

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"FeatureCollection\", \"features\": [\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-152.3433185,-51.1400329],[-168.2902719,-61.7109737],[-153.3221574,-65.1360902],[-142.1320457,-59.7694693],[-152.3433185,-51.1400329]]]},\"properties\":null}\n]}"]
}

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"FeatureCollection\", \"features\": [\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-152.3433185,-51.1400329],[-168.2902719,-61.7109737],[-153.3221574,-65.1360902],[-142.1320457,-59.7694693],[-152.3433185,-51.1400329]]]},\"properties\":null},\n{\"type\":\"Feature\",\"geometry\":null,\"properties\":null},\n{\"type\":\"Feature\",\"geometry\":null,\"properties\":null}\n]}"]
}

ms_simplify works with lines

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"FeatureCollection\", \"features\": [\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"LineString\",\"coordinates\":[[-146.030845,-17.697398],[-147.696223,-21.1162469],[-156.2250727,-21.2045764],[-150.6399109,-15.4286993],[-146.030845,-17.697398]]},\"properties\":null}\n]}"]
}

ms_simplify works correctly when all geometries are dropped

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"FeatureCollection\", \"features\": [\n\n]}"]
}

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"GeometryCollection\", \"geometries\": [\n\n]}"]
}

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"FeatureCollection\", \"features\": [\n\n]}"]
}

snap_interval works

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"FeatureCollection\", \"features\": [\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[101,2],[102,2],[103,2],[103,3],[101,3],[101,2]]]},\"properties\":null},\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[101,2],[101,1],[103,1],[103,2],[102,1.9],[101,2]]]},\"properties\":null}\n]}"]
}

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"FeatureCollection\", \"features\": [\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[101,2],[102,2],[103,2],[103,3],[101,3],[101,2]]]},\"properties\":null},\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[101,2],[101,1],[103,1],[103,2],[102,2],[101,2]]]},\"properties\":null}\n]}"]
}

gj2008 flag reverses winding order as expected

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"FeatureCollection\", \"features\": [\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[100,0],[110,0],[110,10],[100,10],[100,0]],[[101,1],[101,9],[109,9],[109,1],[101,1]]]},\"properties\":null}\n]}"]
}

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"FeatureCollection\", \"features\": [\n{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[100,0],[100,10],[110,10],[110,0],[100,0]],[[101,1],[109,1],[109,9],[101,9],[101,1]]]},\"properties\":null}\n]}"]
}

gj2008 flag reverses winding order as expected with sf

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"Polygon\",\"coordinates\":[[[100.0,0.0],[110.0,0.0],[110.0,10.0],[100.0,10.0],[100.0,0.0]],[[101.0,1.0],[101.0,9.0],[109.0,9.0],[109.0,1.0],[101.0,1.0]]]}"]
}

{
  "type": "character",
  "attributes": {
    "class": {
      "type": "character",
      "attributes": {},
      "value": ["geojson", "json"]
    }
  },
  "value": ["{\"type\":\"Polygon\",\"coordinates\":[[[100.0,0.0],[100.0,10.0],[110.0,10.0],[110.0,0.0],[100.0,0.0]],[[101.0,1.0],[109.0,1.0],[109.0,9.0],[101.0,9.0],[101.0,1.0]]]}"]
}

ateucher/rmapshaper documentation built on Nov. 2, 2023, 4:23 p.m.