turf-size - npm Package Compare versions

Comparing version 0.2.0 to 1.0.0

bench.js

index.js

		module.exports = function(bbox, factor){
		var currentXDistance = (bbox[2] - bbox[0])
		var currentYDistance = (bbox[3] - bbox[1])
		var newXDistance = currentXDistance * factor
		var newYDistance = currentYDistance * factor
		var xChange = newXDistance - currentXDistance
		var yChange = newYDistance - currentYDistance
		var currentXDistance = (bbox[2] - bbox[0]);
		var currentYDistance = (bbox[3] - bbox[1]);
		var newXDistance = currentXDistance * factor;
		var newYDistance = currentYDistance * factor;
		var xChange = newXDistance - currentXDistance;
		var yChange = newYDistance - currentYDistance;

		var lowX = bbox[0] - (xChange / 2)
		var lowY = bbox[1] - (yChange / 2)
		var highX = (xChange / 2) + bbox[2]
		var highY = (yChange / 2) + bbox[3]
		var lowX = bbox[0] - (xChange / 2);
		var lowY = bbox[1] - (yChange / 2);
		var highX = (xChange / 2) + bbox[2];
		var highY = (yChange / 2) + bbox[3];

		var sized = [lowX, lowY, highX, highY]
		return sized
		var sized = [lowX, lowY, highX, highY];
		return sized;
		}

package.json

		{
		"name": "turf-size",
		"version": "0.2.0",
		"version": "1.0.0",
		"description": "turf size module",
		@@ -27,4 +27,5 @@ "main": "index.js",
		"devDependencies": {
		"tape": "^2.12.3"
		"benchmark": "^1.0.0",
		"tape": "^2.13.4"
		}
		}

README.md

		@@ -7,3 +7,24 @@ turf-size

		###Install

		```sh
		npm install turf-size
		```

		###Parameters

		\|name\|description\|
		\|---\|---\|
		\|bbox\|[xmin, ymin, xmay, ymax]\|
		\|factor\|the factor to increase or decrease size by\|

		###Usage

		```js
		size(bbox, factor)
		```

		###Example

		```js
		var bbox = [0, 0, 10, 10]
		@@ -10,0 +31,0 @@

test.js

		@@ -1,34 +0,34 @@
		var test = require('tape')
		var size = require('./')
		var test = require('tape');
		var size = require('./');

		test('size', function(t){
		var bbox = [0, 0, 10, 10]
		var sized = size(bbox, 2)
		t.deepEqual(sized, [-5, -5, 15, 15], 'should double the size of a bbox at 0,0,10,10')
		var bbox = [0, 0, 10, 10];
		var sized = size(bbox, 2);
		t.deepEqual(sized, [-5, -5, 15, 15], 'should double the size of a bbox at 0,0,10,10');

		var bbox = [0, 0, 4, 4]
		var sized = size(bbox, 1)
		t.deepEqual(sized, [0, 0, 4, 4], 'should do nothing to the size of a bbox at 0,0,4,4')
		var bbox = [0, 0, 4, 4];
		var sized = size(bbox, 1);
		t.deepEqual(sized, [0, 0, 4, 4], 'should do nothing to the size of a bbox at 0,0,4,4');

		var bbox = [0, 0, 4, 4]
		var sized = size(bbox, 2)
		t.deepEqual(sized, [-2, -2, 6, 6], 'should double the size of a bbox at 0,0,4,4')
		var bbox = [0, 0, 4, 4];
		var sized = size(bbox, 2);
		t.deepEqual(sized, [-2, -2, 6, 6], 'should double the size of a bbox at 0,0,4,4');

		var bbox = [0, 0, 4, 4]
		var sized = size(bbox, 0.5)
		t.deepEqual(sized, [1, 1, 3, 3], 'should shrink a bbox by 50% at 0,0,4,4')
		var bbox = [0, 0, 4, 4];
		var sized = size(bbox, 0.5);
		t.deepEqual(sized, [1, 1, 3, 3], 'should shrink a bbox by 50% at 0,0,4,4');

		var bbox = [-10, -10, 0, 0]
		var sized = size(bbox, 2)
		t.deepEqual(sized, [-15, -15, 5, 5], 'should double the size of a bbox at -10,-10')
		var bbox = [-10, -10, 0, 0];
		var sized = size(bbox, 2);
		t.deepEqual(sized, [-15, -15, 5, 5], 'should double the size of a bbox at -10,-10');

		var bbox = [0, 0, 10, 10]
		var sized = size(bbox, 1.5)
		t.deepEqual(sized, [-2.5, -2.5, 12.5, 12.5], 'should expand the size of a bbox by 50% at 0,0,10,10')
		var bbox = [0, 0, 10, 10];
		var sized = size(bbox, 1.5);
		t.deepEqual(sized, [-2.5, -2.5, 12.5, 12.5], 'should expand the size of a bbox by 50% at 0,0,10,10');

		var bbox = [0, 0, 10, 10]
		var sized = size(bbox, 0.5)
		t.deepEqual(sized, [2.5, 2.5, 7.5, 7.5], 'should shrink a bbox by 50%')
		var bbox = [0, 0, 10, 10];
		var sized = size(bbox, 0.5);
		t.deepEqual(sized, [2.5, 2.5, 7.5, 7.5], 'should shrink a bbox by 50%');

		t.end()
		})
		t.end();
		});

turf-size - npm Package Compare versions

New alerts

Fixed alerts

Improved metrics

Worsened metrics