https://github.com/cspanring/flatlands

Transforms a 3D GeoJSON feature geometry to 2D.
https://github.com/cspanring/flatlands

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Transforms a 3D GeoJSON feature geometry to 2D.

• Host: GitHub
• URL: https://github.com/cspanring/flatlands
• Owner: cspanring
• Created: 2014-06-16T17:48:34.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2014-06-16T17:53:30.000Z (over 10 years ago)
• Last Synced: 2024-12-04T20:49:23.756Z (about 2 months ago)
• Language: JavaScript
• Size: 121 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# flatlands

[![Build Status](https://travis-ci.org/cspanring/flatlands.svg)](https://travis-ci.org/cspanring/flatlands)

Transforms a 3D GeoJSON feature geometry to 2D.

## Usage

    var flatlands = require('flatlands');

    var multipolygon = {

      "type": "MultiPolygon",

      "coordinates": [

        [

          [

            [102.0, 2.0, 0],

            [103.0, 2.0, 0],

            [103.0, 3.0, 0],

            [102.0, 3.0, 0],

            [102.0, 2.0, 0]

          ]

        ],

        [

          [

            [100.0, 0.0, 0],

            [101.0, 0.0, 0],

            [101.0, 1.0, 0],

            [100.0, 1.0, 0],

            [100.0, 0.0, 0]

          ],

          [

            [100.2, 0.2, 0],

            [100.8, 0.2, 0],

            [100.8, 0.8, 0],

            [100.2, 0.8, 0],

            [100.2, 0.2, 0]

          ]

        ]

      ]

    };

    var feature = flatlands(multipolygon);

Returns:

    {

      "type": "MultiPolygon",

      "coordinates": [

        [

          [

            [102, 2],

            [103, 2],

            [103, 3],

            [102, 3],

            [102, 2]

          ]

        ],

        [

          [

            [100, 0],

            [101, 0],

            [101, 1],

            [100, 1],

            [100, 0]

          ],

          [

            [100.2, 0.2],

            [100.8, 0.2],

            [100.8, 0.8],

            [100.2, 0.8],

            [100.2, 0.2]

          ]

        ]

      ]

    }