New minor release! Turf 5.1.0 🎉 #1162

DenisCarriere · 2017-12-07T22:10:07Z

New minor release! Turf 5.1.0 🎉

TurfJS releases are being tracked using Milestones.

Contributors

Crowdsourced Funding

Why we're looking for support

TurfJS is a community-driven project maintained by a small group of core contributors who work on the project in their spare time. Time is spent supporting users, improving documentation, fixing bugs as well as creating new modules. Your funding will directly go to development costs, marketing campaigns, promotional events & any other financial costs to operate & maintain TurfJS.

In particular, we're looking for corporate sponsors who use TurfJS in revenue-generating ways, either by creating applications for clients, or through use in an app used by customers. Of course individuals are welcome to support us as well if TurfJS has helped you :)

https://opencollective.com/turf

Help TurfJS by becoming a Backer for only 2$/mo.

🚀 New Modules

`@turf/center-median`

Takes a FeatureCollection of points and calculates the median center, algorithimically. The median center is understood as the point that is requires the least total travel from all other points.

(PR #1122 - Author @muziejus)

`@turf/center-mean`

Takes a Feature or FeatureCollection and returns the mean center. Can be weighted.

(PR #1089 - Author @muziejus)

`@turf/standard-deviational-ellipse`

Takes a FeatureCollection and returns a standard deviational ellipse, also known as a “directional distribution.” The standard deviational ellipse aims to show the direction and the distribution of a dataset by drawing an ellipse that contains about one standard deviation’s worth (~ 70%) of the data.

This module mirrors the functionality of Directional Distribution in ArcGIS and the QGIS Standard Deviational Ellipse Plugin

(PR #1120 - Author @muziejus)

`@turf/ellipse`

Takes a Point and calculates the ellipse polygon given two semi-axes expressed in variable units and steps for precision.

(PR #1087 - Author @muziejus)

📖 Documentation

TurfJS's website has a fresh new look! 🚀 http://turfjs.org (Author @rowanwins PR Initial commit SSR pages turf-www#127)
- This uses nuxt to generate the pages as static html which should be better for search engines
- The docs are now all on a single page
- Built sizes are much better than the current
- The map moves to a module when its description comes into view, I think this functions reasonably nicely.

🏅 New Features/Enhancements

Add points/lineStrings/polygons to @turf/helpers (Add points/lineStrings/polygons to @turf/helpers #1108)
Internalize @types/geojson (Internalize @types/geojson #1138)
Add extra geometry support to @turf/points-within-polygon (Add extra geometry support to @turf/points-within-polygon #1117)
ES Modules now work in the latest version of Chrome!

<script type='module'>
  import {point} from "https://unpkg.com/@turf/helpers?module"

  console.log(point([100, 0]));
</script>

🐛 Bug Fixes

Prevent Window Freeze when using @turf/simplify (Prevent Window Freeze when using @turf/simplify #1145)
Take care of zero handling for weight in @turf/center-mean (Take care of zero handling for weight in @turf/center-mean #1127)
Add input validation to @turf/bbox-polygon (Add input validation to @turf/bbox-polygon #1121)
Use rhumb lines to calculate @turf/ellipse axes, except when units are "degrees" (Use rhumb lines to calculate @turf/ellipse axes, except when units are "degrees" #1115)
coordEach indexing bug (coordEach indexing bug #1092)
Add null handling for property cloning on @turf/clone. Fixes issue Null property crashes @turf/clone #1095 (Add null handling for property cloning on @turf/clone. Fixes issue #1095. #1096)

Twitter: https://twitter.com/DenisCarriere/status/938895355541778432
CC: @Turfjs/ownership

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rowanwins · 2017-12-07T22:15:28Z

Thanks particularly to @muziejus for getting involved in the past month, lots of really valuable contributions, code & thoughts & documentation, so thank you!

muziejus · 2017-12-07T22:47:58Z

Thanks. I've been using Turf on and off as a solution to put my various geospatial analysis on the web in presentations for about a year, but lately I've been getting more and more frustrated w/ ArcMap and QGIS and working between them and Leaflet. Turf takes up a great middle ground, and I'm glad that my solution to "I wish Turf did x" was "Let me try to do it; the worst that happens is the team tells me I was wrong and fixes it."

Turf is also useful towards the curriculum (of sorts) of free, light, JavaScript solutions for scholars in the humanities that I'm designing. I've got high hopes for this little (huge) library, and I have to thank you all for putting it together in the first place!

brianreavis · 2017-12-08T04:53:46Z

For any turf users out there also using webpack and babel to compile to ES5 for browsers, make sure your test line (if you have one) now matches .mjs files:

rules: [{
  test: /\.m?jsx?$/,
  include: /* ... */,
  use: [{
    loader: 'babel-loader',
    // ...

Otherwise, lines like this one will now creep into your bundle. That, or set resolve.mainFields to prioritize "main" over "module".

DenisCarriere · 2017-12-08T05:35:07Z

@brianreavis What is creeping into your bundle? the Callback?

For the module bundle, I changed it to .mjs since that will be the new file extension standard for ES Modules, let me know if this is more of a headache then a solution, we can always use turf.es.js as the file extension for ES modules.

brianreavis · 2017-12-08T05:47:47Z

@brianreavis What is creeping into your bundle? the Callback?

Just the {bbox, id} shorthand.

For the module bundle, I changed it to .mjs since that will be the new file extension standard for ES Modules, let me know if this is more of a headache then a solution, we can always use turf.es.js as the file extension for ES modules.

I wouldn't worry about it. Just a growing pain! I wasn't familiar with the *.mjs convention, but am now. For anyone else wanting the reading: The Michael Jackson Solution

DenisCarriere · 2017-12-08T05:52:47Z

Actually {bbox, id} shorthand should be transpiled to ES5... 🤔 Which isn't happening... I'll look into the new buble Rollup configuration.

DenisCarriere · 2017-12-08T05:55:34Z

Nevermind.. buble is transpiling the code to proper ES5 (without shorthand), try using the main in the package.json.

https://unpkg.com/@turf/meta@5.1.0/main.js

main.js

function flattenEach(geojson, callback) {
    geomEach(geojson, function (geometry, featureIndex, properties, bbox, id) {
        // Callback for single geometry
        var type = (geometry === null) ? null : geometry.type;
        switch (type) {
        case null:
        case 'Point':
        case 'LineString':
        case 'Polygon':
            callback(helpers.feature(geometry, properties, {bbox: bbox, id: id}), featureIndex, 0);
            return;
        }

brianreavis · 2017-12-08T06:01:22Z

Yep, that all is working fine! The main kicker is that webpack picks "module" over "main" by default (documentation here). Again, no problem with turf – just a bit of a head scratcher on the tooling side if you're not aware :)

Edit: updated my original comment to note the resolve.mainFields trick.

DenisCarriere · 2017-12-08T17:50:55Z

@brianreavis Thanks for the heads up, moving forward more and more libraries will support "module" by default since there are many benefits of using ES Modules and most popular bundlers now support it (Webpack, Rollup). One of my personal favorites is the ability to import an ES module directly in the browser (Chrome 61+) without even having to bundle it.

Using `"module"` directly in Chrome

<script type='module'>
  import {point} from "https://unpkg.com/@turf/helpers?module"

  console.log(point([100, 0]));
</script>

DenisCarriere · 2017-12-11T21:03:32Z

Seems like most v5.1 issues have now been resolved.

DenisCarriere added the release label Dec 7, 2017

DenisCarriere added this to the 5.1.0 milestone Dec 7, 2017

DenisCarriere assigned DenisCarriere, muziejus and rowanwins Dec 7, 2017

DenisCarriere mentioned this issue Dec 10, 2017

Fix minor release v5.1 - uglifyjs & build errors #1166

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DenisCarriere closed this as completed Dec 11, 2017

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New minor release! Turf 5.1.0 🎉 #1162

New minor release! Turf 5.1.0 🎉 #1162

DenisCarriere commented Dec 7, 2017 •

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rowanwins commented Dec 7, 2017

muziejus commented Dec 7, 2017

brianreavis commented Dec 8, 2017 •

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DenisCarriere commented Dec 8, 2017

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brianreavis commented Dec 8, 2017 •

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DenisCarriere commented Dec 11, 2017

New minor release! Turf 5.1.0 🎉 #1162

New minor release! Turf 5.1.0 🎉 #1162

Comments

DenisCarriere commented Dec 7, 2017 • edited Loading

New minor release! Turf 5.1.0 🎉

Contributors

Crowdsourced Funding

Why we're looking for support

https://opencollective.com/turf

Help TurfJS by becoming a Backer for only 2$/mo.

🚀 New Modules

@turf/center-median

@turf/center-mean

@turf/standard-deviational-ellipse

@turf/ellipse

📖 Documentation

🏅 New Features/Enhancements

🐛 Bug Fixes

rowanwins commented Dec 7, 2017

muziejus commented Dec 7, 2017

brianreavis commented Dec 8, 2017 • edited Loading

DenisCarriere commented Dec 8, 2017

brianreavis commented Dec 8, 2017

DenisCarriere commented Dec 8, 2017

DenisCarriere commented Dec 8, 2017

brianreavis commented Dec 8, 2017 • edited Loading

DenisCarriere commented Dec 8, 2017

Using "module" directly in Chrome

DenisCarriere commented Dec 11, 2017

DenisCarriere commented Dec 7, 2017 •

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`@turf/center-median`

`@turf/center-mean`

`@turf/standard-deviational-ellipse`

`@turf/ellipse`

brianreavis commented Dec 8, 2017 •

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brianreavis commented Dec 8, 2017 •

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Using `"module"` directly in Chrome