# Trending November 2023 # Tutorial — How To Visualize Feature Maps Directly From Cnn Layers # Suggested December 2023 # Top 12 Popular

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Introduction

Let’s put on the eyes of Neural Networks and see what the Convolution Neural Networks see.

Photo by David Travis on Unsplash

Pre-requisites:-

The reader knows how to generate the CNN model.

The reader understands the trainable parameter calculations and the size of inputs and outputs of various intermediate layers.

Imp Note:-

Here, we are only concerned with building a CNN model and checking its feature maps. We are not concerned about the accuracy of the model.

Now, without wasting our time let us build a model:-

We create a multi-class model with three classes.

model=tf.keras.models.Sequential([ tf.keras.layers.Conv2D(8,(3,3),activation ='relu', input_shape=(150,150,3)), tf.keras.layers.MaxPooling2D(2,2), tf.keras.layers.Conv2D(16,(3,3),activation ='relu'), tf.keras.layers.MaxPooling2D(2,2), tf.keras.layers.Conv2D(32,(3,3),activation ='relu'), tf.keras.layers.MaxPooling2D(2,2), tf.keras.layers.Flatten(), tf.keras.layers.Dense(1024,activation='relu'), tf.keras.layers.Dense(512,activation='relu'), tf.keras.layers.Dense(3,activation='softmax') ])

The summary of the model is:-

model.summary()

As we can see above, we have three Convolution Layers followed by MaxPooling Layers, two Dense Layers, and one final output Dense Layer.

Imp note:- We need to compile and fit the model. Hence run the model first, only then we will be able to generate the feature maps. I have not shown all those steps here.

To generate feature maps we need to understand model.layers API.

Accessing Intermediate Layers of CNN:-

Let us understand how to access the intermediate layers of CNN.

Getting names of layers of CNN:-

layer_names = [layer.name for layer in model.layers] layer_names

Which gives the output as:-

['conv2d', 'max_pooling2d', 'conv2d_1', 'max_pooling2d_1', 'conv2d_2', 'max_pooling2d_2', 'flatten', 'dense', 'dense_1', 'dense_2']

Checking the layers:-

model.layers

It returns the list of Layers as below:-

Getting output of the layers of CNN:-

layer_outputs = [layer.output for layer in model.layers]

This returns the output objects of the layers. They are not the real output but they tell us the functions which will be generating the outputs. We will be incorporating this layer.output into a visualization model we will build to extract the feature maps.

To generate feature maps, we have to build a visualization model that takes an image as an input and has the above-mentioned layer_outputs as output functions.

Important thing to note here is that we have total 10 outputs, 9 intermediate outputs and 1 final classification output. Hence, we will have 9 feature maps.

feature_map_model = tf.keras.models.Model(input=model.input, output=layer_outputs)

The above formula just puts together the input and output functions of the CNN model we created at the beginning.

There are a total of 10 output functions in layer_outputs. The image is taken as input and then that image is made to pass through all these 10 output functions one by one in serial order.

The last output function is the output of the model itself. So, in total there are 9 intermediate output functions and hence 9 intermediate feature maps.

This means any input we give to the feature_map_model, the output will be in the form of 9 feature maps.

Now, we will prepare an image to give it as an input to the above feature_map_model:-

image_path= r"path of the image from desktop or internet."

input = img_to_array(img) input = x.reshape((1,) + x.shape)

input /= 255.0

In the above code, we have loaded an image into a variable “input”, converted it to an array, expanded the dimensions of the image to match the dimensions of the intermediate layers, and finally, we have scaled the image before feeding it to the layers.

Now, let’s feed it into the model created:-

feature_maps = feature_map_model.predict(input)

The above code has finally generated feature maps for us.

We will again decode the feature_maps content.

Now that the feature maps are generated, let us check the shape of the feature maps of each of the outputs.

The above code will give the layer name of intermediate layers of the CNN Model and the shape of the corresponding feature maps we have generated.

Steps to generate feature maps:-

We need to generate feature maps of only convolution layers and not dense layers and hence we will generate feature maps of layers that have “dimension=4″.

for layer_name, feature_map in zip(layer_names, feature_maps):

if len(feature_map.shape) == 4

Each feature map has n-channels and this number “n” is given at the end of the shape of the feature map. This is the number of features in a particular layer.

For eg. feature_map[0].shape = (1,148,148,8). This means this is an image with 8 dimensions. So, we need to iterate over this image to separate its 8 images. This shows that layer_1 output has 8 features which have been clubbed into 1 image.

for layer_name, feature_map in zip(layer_names, feature_maps):

if len(feature_map.shape) == 4

# Number of feature images/dimensions in a feature map of a layer k = feature_map.shape[-1] #iterating over a feature map of a particular layer to separate all feature images.

for i in range(k): feature_image = feature_map[0, :, :, i]

The feature maps directly generated are very dim in visual and hence not properly visible to human eyes. So, we need to do Standardization and Normalization of the feature image extracted.

Standardization and Normalization of an image to make it palatable to human eyes:-

feature_image-= feature_image.mean() feature_image/= feature_image.std () feature_image*= 64 feature_image+= 128 feature_image= np.clip(x, 0, 255).astype('uint8')

With keeping the above three points, let us generate feature maps,

for layer_name, feature_map in zip(layer_names, feature_maps):

if len(feature_map.shape) == 4 k = feature_map.shape[-1] size=feature_map.shape[1] for i in range(k): feature_image = feature_map[0, :, :, i] feature_image-= feature_image.mean() feature_image/= feature_image.std () feature_image*= 64 feature_image+= 128 feature_image= np.clip(x, 0, 255).astype('uint8') image_belt[:, i * size : (i + 1) * size] = feature_image

Finally let us display the image_belts we have generated:-

scale = 20. / k plt.figure( figsize=(scale * k, scale) ) plt.title ( layer_name ) chúng tôi ( False ) plt.imshow( image_belt, aspect='auto')

You're reading Tutorial — How To Visualize Feature Maps Directly From Cnn Layers

## What Is Cnn+ & How To Watch Cnn Plus On Tv?

CNN+ alternatively observed as CNN Plus is a newfangled streaming service in the landscape of digital entertainment.

CNN+ is developed by the CNN community and launched in March 2023 which is a paid streaming service to access CNN premium news, live coverages, on-demanding programming, and interactive interviews.

As CNN plus charges a monetary against delivering CNN+ associate’s content, users need to sign up and pay a monthly fee to access content continuously.

It is deliberately designed for CNN fans, news junkies, and fans of non-fiction programming.

The goal behind establishing CNN+ is to manifest a closer relationship with news compulsive audiences, and also with those who love CNN linear network content peacefully.

This blog illustrates everything you need to know about CNN+ (CNN Plus) including how to subscribe to CNN+ and what kind of content you can expect to watch.

CNN+ is an artwork from the CNN community released in March 2023.

CNN plus is a name for a “direct-to-consumer” streaming service platform that was established to offer unparalleled CNN journalism and storytelling.

The chief at CNN describes that CNN+ is solely for consumers available for both mobile apps and big-screen experience, however, is clearly distinctive from CNN, CNN International, and other CNN networks.

Talking about the CNN+ glossaries, the service is able to deliver eight to twelve weekly original shows (100% live) and host thousands of on-demand content for CNN fans.

Additionally, there is a dedicated feature that answers the questions of users which represents it on CNN+ as an Interview Club.

Unfortunately, CNN+ faced a lot of headwinds and looming tails when launched officially. And that caught heat, which resulted in the shuttering down entirely one month after its launch.

As CNN’s chief told the media that CNN+ is available for macro experiences which include a multitude of platforms such as tablets, smartphones, and desktops including TV, the users can watch CNN plus easily via their preferred mode.

The three different ways to watch CNN plus are described below:

The users can also watch CNN plus through an app on their smartphones irrespective of availability deviation.

The last way to access cnn plus is to approach some streaming services including Sling TV, Hulu+ Live TV, and YouTube TV.

Thankfully, CNN users can watch CNN plus on TV too.

You can watch CNN+ on your TV by recommending some third-party streaming services such as Sling, DirecTV Stream, Hulu, Youtube TV, and other streaming services partners with CNN+ networks.

Alternatively, you can use the Google Chromecast option to watch CNN plus on TV. To do so, open the CNN+ app on your smartphone. Start playing any content you wish to watch on TV and select the cast icon. Choose the cast device and upon successful pairing, it will show content on your TV.

To get CNN+ on TV you need to install (in case you don’t have) Sling TV, Hulu + Live TV, DirecTV, and YouTube TV on your digital-enabled TV.

In case you are wondering how to subscribe to CNN+ streaming service, here’s a step-by-step guide, you can follow.

Step 1 – On CNN+ homepage, navigate to the ‘Subscribe’ button.

Step 3 – Next, you have to opt CNN+ plans that are preferable to your budget and necessary.

Before shutting down CNN plus, the streaming service had plenty of content. It features spanking new dramas, movies, and documentaries.

A list of CNN+ streaming services is listed below:

Weekly, daily programming Weekly programming CNN Original Series and CNN Films

5 Things with Kate Bolduan Anderson Cooper Full Circle The Land of the Giants: Titans of Tech

Go There Boss Files with Poppy Harlow The Murdochs: Empire of Influence

Big Picture with Sara Sidner Jake Tapper’s Book Club DIONNE WARWICK: Don’t Make Me Over

Reliable Sources Daily Parental Guidance with Anderson Cooper The Last Movie Stars

The Source with Kasie Hunt No Mercy No Malice with Scott Galloway

The Global Brief with Bianca Nobilo The Don Lemon Show

Who’s Talking to Chris Wallace? Rex Chapman

The Newscast with Wolf Blitzer 20 Questions with Audie Cornish

Cari & Jemele: Speak.Easy

Masters in Medicine with Dr. Sanjay Gupta

CNN+ hosts weekly-daily programming, weekly programming, and non-news content with CNN original series and movies.

Cable News Network in short CNN is the U.S largest media company that provides live coverage and analysis of breaking news along with international coverage on politics, business, entertainment, sports, and many more.

In the lineup of CNN community releases CNN+ is designed to offer unique experiences to news-fans readers and digital viewers with exceptional, deep-study content without cable needs.

Additionally, CNN+ live programming offers more in-depth reports, news, and everything that it has in its glossaries.

Is CNN+ Free?

At launch, CNN+ comes with a single-tier pricing plan that costs \$6 per month or \$60 per year. It’s budget-friendly and convenient to approach.

Will CNN Plus Have Live News?

Considering the hype of CNN+ during its launch, the CNN community offers live news coverage plus a significant catalogue of on-demand programming including old CNN shows as well.

What channel is CNN on DirecTV?

According to DirecTV, the user can watch CNN HD on channel 202 (Two-Zero-Two).

What channel is CNN on Dish Network?

If you’re trying to access CNN on a Dish network connection, it is available on channel 200 (Two-Zero-Zero).

What channel is CNN on Verizon FiOS?

Verizon’s 5g internet capability gives you a boost in streaming CNN content on your device rapidly without any snagging. CNN Verizon channel is available at 600.

## How To Buy Products Directly From Instagram Posts. (Android And Ios)

First came the Facebook Marketplace, which allows users to purchase products and services from within the Facebook app. Fast forward a little and a similar feature has been added to Instagram. If you haven’t yet figured out how to make purchases on Instagram, this guide will show you how.

For years Instagram has been copying and cloning features from Snapchat, however, recently has finally taken a step in the right direction with a brand new service. Instagram’s new purchase feature has been a long time coming and aims to revolutionize the way business is done on social media.

Now Instagram influencers and businesses have an entirely new way to sell products, whilst keeping users within the confines of Instagram longer. Although the feature hasn’t been rolled out internationally yet, you will start to see it subtly roll onto devices and stores over the coming weeks and months.

Note: If you are looking for a way to bypass any geo-restrictions on this feature, there aren’t any reliable methods that will allow you to change your region successfully. Even using a VPN and fake GPS location doesn’t seem to work.

How to Make Purchases From Instagram. (Instagram Shopping)

Making purchases from Instagram posts is quite an easy process, the hardest part at the moment is finding stores and influencers who are using the feature. Once you do track a service down, the rest is a walk in the park. To begin, there are two different ways to get a price, in the top right-hand corner of images in grid view there is a shopping bag symbol, this indicates the post has items available to purchase.

Once you tap on these images to expand them, some images contain a white circle on the product indicating that specific product is for sale. When you tap on this circle a small description of the item will appear along with the price. Next to this information, you will find a small arrow which will take you to a more detailed description of the product, with a blue Shop Now ribbon.

Once you tap Shop Now, you will be taken to the product’s website (within the Instagram app) where you can choose your color, size and delivery options. From here on out, the rest of the process is straightforward, following the standard online check out process.

## How To Safely Control Spotify From Google Maps And Waze

Using your smartphone to control music streaming while driving can be a recipe for disaster. Many accidents occur each year because people are fiddling with their phones while driving, yet you don’t want to stop every time you want to change what you are listening to on your music apps. Fortunately, road trip music can be controlled directly from some navigation apps. This guide shows you how to safely use Spotify (and other apps) directly from Google Maps and Waze.

Tip: need a positive moment in your day? Check out the best uplifting Spotify podcasts.

Which Streaming Services Are Supported in Google Maps?

The embedded music feature in Google Maps allows you to control your music streaming apps with a button on the navigation screen. With a tap, you can access the audio player and make selections while actively navigating. You don’t have to leave one app to use another.

The audio player on Google Maps supports YouTube Music, Apple Music, and Spotify (iHeartRadio also seems to be available in some regions) on Android phones and Apple Music and Spotify on iOS.

How to Enable the Music Player from Google Maps

To control your music streaming app from within Google Maps, you’ll have to first enable the music player feature.

Android

Scroll down to “Settings” and tap it.

Tap the “Assistant default media provider” option.

Select your preferred music service from the next screen. YouTube Music is already added by default. If you want to connect Spotify or Apple Music to your Google Maps, you’ll need to tap the respective option.

A new window will appear where you’ll be asked to link your Google account (the same one you use in Google Maps ). It will be enabled on all devices. Tap “Continue.”

On the next screen, tap “Agree and continue.”

If linking to Spotify, you’ll be taken to a page where you’ll be asked to allow Google to view your Spotify activity and account data (among other things). Tap the green “Agree” button at the bottom.

Your chosen music streaming app will now be your default music service in Google Maps. If you wish to remove it, press “Unlink” underneath.

Good to Know: if you’re constantly traveling to a particular location, it may be handy to know how to save a route in Google Maps.

iOS

Tap on your Google account profile picture in the search bar at the top.

Select “Settings.”

Tap the “Music playback controls” option.

Select either Apple Music or Spotify. If you want to use the latter service in Google Maps, make sure you’ve downloaded the app from the App Store. Apple Music is preinstalled on your iOS device.

Press “Open” in the following pop-up.

If you selected Spotify, authorize Google to access your Spotify info by pressing the “Agree” button.

Tip: you can easily transfer your Spotify playlists to YouTube Music if you like this service better.

Android

Open the Spotify app (or any other, depending on your preference) on your device and start playing music.

In Google Maps, enter your destination and begin navigation. You should see the music bar at the bottom.

It will display the artist’s name as well as the song playing. You can control music playback from there with a single tap. Press either Pause/Play or skip to the next song. If you have already created a playlist for your trip, learn how to create collaborative playlists with Blend on Spotify.

You can collapse the music bar by tapping on the downward arrow at the top of the card.

The streaming service’s icon will be visible in the app tray.

Interestingly, you can add content from more apps from the Navigation menu in Google Maps. Tap on the icon shaped like four tiny squares in the lower right corner.

You’ll be able to select the streaming apps you have installed on your device. In this example, we can get access to Castbox, Audible, and Podcasts.

Once you tap on the app, you can select a podcast from Google Maps.

Tap on what you want to listen to, and it will immediately start playing.

Tip: Looking for a Google Maps alternative? This list includes the best ones currently available.

iOS

Follow the first three steps outlined in the Android section to bring up the music-playing bar at the bottom of Google Maps.

Interestingly, on iOS, you get an extra “Browse” button.

This takes you to a page offering recommendations based on the music you previously listened to. You can “Open Spotify” from there too.

The bar also features music controls, just like on Android. Although on iOS, you have an extra “Go to previous song” button.

Which Streaming Services Are Supported in Waze?

Google Maps is not the only app that allows integration with music apps. The Waze app also does so on a larger scale. Whereas Google Maps only gives you two options for your media player, Waze gives you a choice between multiple services! You can use Audible, Spotify, Deezer, Amazon Music, YouTube Music, TIDAL, TuneIN or Scribd on Android. On iOS you have all these options as well, plus TuneIN Pro.

How to Enable the Music Player in Waze

As with Google Maps, you’ll need to first enable the music player in Waze before controlling music streaming from the navigation app. The steps for Android and iOS are similar, with a few minor exceptions.

Open the Waze app on your device.

Tap on “My Waze” at the bottom. On iOS, swipe left to bring up a side menu.

Press on the gear icon in the upper-left corner.

Look for the “Driving preferences” section and select “Audio player.”

Make sure the “Show on the map” toggle at the top is enabled. “Show next song” is optional.

Check the list of supported streaming apps. If the app you want to use isn’t installed on your device, there is a handy “Install” button that takes you directly to the Google Play Store.

Tip: provide more accurate directions with pins on Google Maps.

How to Control Your Music App from Waze

Once you ensure the music player option is visible within the app, enter your destination in the “Where to” bar.

Pressing the “Go now” button will kickstart the app’s navigation mode.

Tap the floating pink music note icon.

Select an app from your list. Waze does not have a default player, so select which one you want to use from inside the navigation app.

The first time you use each app, you must accept the permissions.

When Spotify finally connects, press “Play.” There are also controls for navigating to the next or previous song, shuffling, and “Loving” the song that’s playing.

If you want to change songs/albums quickly, tap on the “Show list” button underneath.

A pop-up will display your most recently played music.

To change the streaming app in Waze, tap “Audio apps” at the top of the screen and select a different one.

The music app you’ve used in Waze’s navigation mode will show under “Audio player” in Settings under “Your apps.”

Tap “Disconnect” if you don’t want to be connected to the app anymore while in Waze.

Remember, it is still risky to change apps or playlists while driving, but these features in Google Maps and Waze make it almost as easy as changing a channel on the radio. It’s also possible to create a radio station on Spotify and find new music to listen to while you’re out cruising.

Good to Know: wondering which music streaming service is the best? Check out our Spotify vs. Apple Music comparison.

Frequently Asked Questions Why does music and podcasts continue playing even after I’ve exited and closed the Google Maps app?

This can happen if you’ve forgotten to “Pause” the song or the podcast you’re listening to from the Google Maps app. Even if you’ve closed the navigation or music apps properly before, you’ll need to open Maps again, add a destination, and go to navigation mode. You’ll notice that the audio is still running. Pause it,before exiting the app and you’ll have total silence.

Image credit: Freepik. All screenshots by Alexandra Arici.

Alexandra Arici

Alexandra is passionate about mobile tech and can be often found fiddling with a smartphone from some obscure company. She kick-started her career in tech journalism in 2013, after working a few years as a middle-school teacher. Constantly driven by curiosity, Alexandra likes to know how things work and to share that knowledge with everyone.

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## How To Move Images And Layers Between Photoshop Documents

How To Move Images And Layers Between Photoshop Files

To help you better visualize this example, let’s walk through it more in-depth while also discussing three alternative methods to use!

How To Move Layers Or Images Between Photoshop Documents Option 1: Moving Layers Between Documents With The Move Tool

First, select the Move Tool by pressing V or selecting in the toolbar. This is the most valuable tool for moving any layer around in Photoshop.

Next, select the layer you want to move in your layers panel. You’ll know it’s selected by the highlight covering the entire layer.

Once you’re in the new document, continue to drag down to hover your cursor over the canvas. Let go of your mouse, and now the layer from your previous Photoshop document will be moved to your new one. Best of all, it will be added to its own layer so you can continue working non-destructively.

My favorite part of this method is that it will automatically duplicate the layer you move between documents. That way, you will still have the same image accessible in both of your projects. How sweet is that?

This step can be applied to text layers, smart objects, shape layers, or even groups. As long as you can select it with the move tool, it’s fair game!

(You can select anything with the move tool, so this technique literally works for everything!)

Option 2: Copy And Paste

If dragging and dropping layers isn’t your thing, copy and paste is always there to have your back. Just like copying and pasting text in a regular word document, Photoshop works the same.

Just like before, your selected layer will now be added to the new project on its own layer. This is another very simple way to move images between documents in Photoshop.

To help you speed up the process, try using a keyboard shortcut for copying and pasting layers. To copy, just press Command + C (Mac) or Control + C (PC) with your layer selected. After switching over to your other Photoshop document, press Command + V (Mac) or Control + V (PC) to paste the layer into the other project.

Option 3: Duplicate Layer Into New Document

As usual, select the layer or images you want to move into a new project.

In the dialogue box that appears, type in the layer name you want for the duplicate you’ll create. If you aren’t sure, just leave it as is; you can change it later if need be!

Now for the important part. Set the destination of your duplicate layer to the already opened Photoshop you want to move it to. In this example, I’m currently in “Project A” and want to move my image to “Project B.” That means “Project B” will be set as my destination.

Switching tabs to view the other project, the layer has now been moved and can be edited in your new document.

Option 4: Drag And Drop Files From Your Computer Into Photoshop

If all else fails, one of the most basic ways to move images into a project is by dragging and dropping them from your computer. With your desired Photoshop file open, bring up your computer files in a new window.

Find the image(s) you want to turn into layers and simply drag and drop them onto the canvas.

Each image will be added as its own layer and can be edited as you wish. You can learn all about how to edit photos in Photoshop in this post.

You can repeat this process between all of your Photoshop documents if you’re having trouble with any of the three previous methods. Since this takes out the use of tools in Photoshop, it’s a surefire and simple way to move images into your different projects with ease!

How To Move An Image In Photoshop After Placing It

How To Move An Image Behind Another

Depending on what you’re trying to do with an image, you might want it to sit behind another layer. This can be easily done by making some adjustments in the layers panel.

Changing The View Of Photoshop Tabs For Ease Of Use

Now you know the ins and outs of moving images and layers between documents in Photoshop. Whether you like to drag and drop, copy and paste, or duplicate your layers, there’s a method here for every situation. It’s nice to switch it up between options at first until you settle on a method that works best for you. After all, the best method is the one that feels the most natural!

Happy editing,

– Brendan 🙂

## How To Use Google Maps Wildfire Tracking

If you live in an area prone to wildfires or have a loved one who does, then the Google Maps wildfire tracking is a definite must. You can see where the fires are located, how widespread they are, and the amount of containment in place.

What’s nice about this Google Maps feature is that it’s available on the web and in the Google Maps mobile app. This allows you to keep up with the wildfires wherever you are.

Google Maps Wildfire Tracking on the Web

Search for a location or use your current one. Then, select the Layers icon on the bottom left of the screen. When it pops out with the options, choose More.

This opens the Layers window with the Wildfires layer for you to pick. Once you select it, you’ll see a toggle at the bottom of the screen. This lets you know that you have the Wildfires layer turned on for the area.

Each reported wildfire is indicated by a red and white flame icon. Choose any of these icons to see additional information.

When you select a fire icon, this opens a panel on the left side. You can see when the last update for that spot was reported, the percentage of the fire contained, and the number of acres burned. If the wildfire has been named, you’ll see this as well.

You can close the panel using the X on the top right. Then, use the same actions you normally would to move about the map if you’d like to review other reported wildfires.

Turn Off Wildfire Tracking on the Web

You can turn off the wildfire tracking if you have other business to attend to on Google Maps, like setting up a custom route for a trip or locating a family member.

Use the toggle at the bottom to disable the feature and return to the original map view. The toggle box will then disappear after a few moments.

Alternatively, you can select the Layer icon to enable the feature and then deselect the Wildfires layer to turn it off.

Google Maps Wildfire Tracking in the Mobile App

If you’re on the go, you can review the Google Maps wildfire tracking on your mobile device. Open the Google Maps app on Android, iPhone, or iPad to get started.

You can search for a location or use your current one. Then, tap the Layers icon on the top right below the search box on the main screen. Select the Wildfires layer to turn it on and tap the X to close the Layers window.

Like on the web, you can select a red and white flame icon to get further information about the fire. This opens a window on the bottom part of the screen with details of the last update, percentage contained, and number of acres burned. Swipe up slightly from the bottom to view all the information.

After you finish, swipe down to close the details about that fire and then select another to view its information if you wish.

You can use your fingers to zoom by pinching inward or outward as you normally would in Google Maps.

Exit Wildfire Tracking in the Mobile App

Tap the arrow on the top left when you have tracked the wildfire. This returns you to the main Google Maps screen and turns off the Wildfires layer simultaneously.

Interested in how to use other features like this in Google Maps? Take a look at all the uses for Street View!

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