Use Mea­sure app

The new Mea­sure app lets you get in­stant di­men­sions of ob­jects us­ing your iPhone and AR. David Price ex­plains how it works

iPad&iPhone user - - CONTENTS -

i OS 12 brings lots of new fea­tures, one of which is called Mea­sure; this can in­stantly tell you the di­men­sions of rooms and ob­jects in the real world by vi­su­al­iz­ing them in aug­mented re­al­ity. Over the fol­low­ing pages we show how it works.

Be warned be­fore we start that we’ve not found Mea­sure to be 100 per­cent ac­cu­rate. This may im­prove in fu­ture it­er­a­tions (it’s still in beta, af­ter all), but at this point it’s a fun, clever and ex­cep­tion­ally con­ve­nient way of find­ing ap­prox­i­mate mea­sure­ments rather than some­thing on which you would be wise to base the de­sign of a house, for ex­am­ple.

Get­ting started

Mea­sure is a stand­alone app. The icon is a black square with white ruler notches and a yel­low bar (see screen­shot op­po­site): tap this (you may need to swipe down and search for it) to open the app.

The de­fault screen is a cam­era view show­ing what­ever is in front of (well, tech­ni­cally be­hind) the iPhone. There’s a cir­cu­lar tar­get in the cen­tre, and a ‘+’ but­ton at the bot­tom – these are the key con­trols to start with.

Mea­sur­ing the dis­tance be­tween two points

You’ll no­tice, as you move the view over ob­jects, that the tar­get ad­justs it­self to the ori­en­ta­tion of what­ever it’s point­ing at. To mea­sure the dis­tance be­tween two points, move the tar­get over the first point and tap ‘+’, then move it over an­other and tap ‘+’ again. The dis­tance be­tween the points will ap­pear on screen.

This mea­sure­ment will now re­main, even if you point the iPhone in a dif­fer­ent di­rec­tion and come back – you’ll need to tap Clear at the top, or Start Again when prompted, to get rid of it. But you can add fur­ther di­men­sions. You could tap two

en­tirely new points, or tap an­other cor­ner of the same ob­ject and then move the tar­get close to one of the pre­vi­ous points and it will be easy to join it on.

In­stant rec­tan­gles

If you’ve got an ob­ject that’s a neat rect­an­gle, Mea­sure should be able to de­tect it au­to­mat­i­cally. Move the tar­get over it and you should see it high­lighted in orange. Now tap the orange rect­an­gle on the iPhone screen and the di­men­sions (and area) will be shown at once.

(If it doesn’t get high­lighted, it’s pos­si­ble that the ob­ject’s edges aren’t clear enough, and you’ll have to tap the corners man­u­ally. And at present Mea­sure can­not auto-de­tect 3D cuboids, only 2D rec­tan­gles.)

Change the mea­sure­ment units

By de­fault, we’ve found that Mea­sure gives di­men­sions in met­ric. (Craig Fed­erighi’s demo showed them in inches, how­ever. We’re not sure if he had changed the set­tings, or if the de­fault is dif­fer­ent in the US.)

To switch be­tween met­ric and imperial, go to Set­tings > Mea­sure > Mea­sure Units.

Spirit level

The spirit level app now sits within Mea­sure (tap the Level tab at the bot­tom), but this works the same way as be­fore – there’s no AR com­po­nent. It just feels like it would use­ful in many of the same sit­u­a­tions as Mea­sure’s other func­tions.

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