Tell browser not to download map files

On the Edit menu, click Modify. In the Value data box increase the Value of in bytes 6. Exit Registry Editor. You receive a Error Message like: Error: 0x The semaphore timeout period has expired" Cause: the Timeout Value is set to 30 Minutes by default Registry information Important This section, method, or task contains steps that tell you how to modify the registry.

In the Value data box increase the Value of Decimal 6. You may increase this setting beyond seconds to make Vista's and Windows 7 WebClient more compatible with high latency, low bandwidth networks. Check whether the problem is fixed. If the problem is fixed, you are finished with this section. If the problem is not fixed, you can contact support. Windows 7 Enterprise More Need more help?

Expand your skills. Get new features first. Was this information helpful? Yes No. Downloaded maps will save to your internal memory by default, which is fine if you have a lot of internal memory. As long as you've already formatted your SD card as Portable Storage , you can opt to save maps to it instead. Type a city or location into the search bar.

If you want your map to encompass more than one city, you'll be able to expand the area in a little bit. Just start with one city or location for now. If you prefer, you can select a location visually on the map. Skip down to step 7 for the remaining steps. The map will zoom in to the selected location. Tap the name of the place. It's near the bottom of the screen. Some more options will appear. Drag the box to select the area you want to download. The area within the confines of the box will be downloaded to your phone or tablet for offline use.

You can capture more or less of the selected area by zooming in or out. Pinch two fingers together on the screen to zoom out, or reverse-pinch to zoom in. It's at the bottom of the screen. The selected map area will now download to your Android. Google Maps will continue using your mobile data plan whenever a connection is available. Though you can still get driving directions when you're offline, you won't be able to get public transit, walking, or biking directions.

Method 2. It's the multicolored map icon with a red pushpin. You'll usually find it on the home screen. Tap the Search key. It's near the top-right corner. Tap Download offline map. You'll see a box surrounding a suggested download area. The selected map area will now download to your iPhone or iPad. If you want to force Google Maps to use your downloaded map instead, you must disconnect from your mobile data plan. You can toggle mobile data on and off by swiping up from the bottom of the home screen and tapping the antennae icon to the right of the airplane.

Method 3. Though there's no way to download a map area when you're using a computer, you can download directions in advance and save them to a PDF file.

Type your destination into the Search bar. If you want to save directions to a location, type the address or name of that location into this box. As you type, a list of matching results will appear. Click the location in the search results.

The map will zoom in to the location. Click Directions. It's in the left panel. In this example, we will use the Canvas API to manipulate the pixels of an image, making it appear grayscale. Here is a comparison between an actual image and the corresponding grayscale canvas image. You can learn about Blobs here. Blobs are objects that are used to represent raw immutable data. Blob objects store information about the type and size of data they contain, making them very useful for storing and working file contents on the browser.

In fact, the File object is a special extension of the Blob interface. Blob objects can be obtained from a couple of sources:. Here are some code samples for the aforementioned blob object sources:. It is one thing to obtain a blob object and another thing altogether to work with it. One thing you want to be able to do is to read the content of the blob.

That sounds like a good opportunity to use a FileReader object. You can learn about FileReader objects here. A FileReader object provides some very helpful methods for asynchronously reading the content of blob objects or files in different ways. The FileReader interface has pretty good browser support and supports reading blob data as follows as at the time of this writing :.

Here is what a typical object URL looks like:. The URL. Here is what it looks like:. It is important to note that, this method will always return a new object URL each time it is called, even if it is called with the same blob object. Whenever an object URL is created, it stays around for the lifetime of the document on which it was created. Usually, the browser will release all object URLs when the document is being unloaded.

However, it is important that you release object URLs whenever they are no longer needed in order to improve performance and minimize memory usage. It takes the object URL to be released as its argument. For example:. We have also seen how we can programmatically extract or generate content in the browser using Web APIs. In this section, we will examine how we can download programmatically generate content in the browser, leveraging all we have learned from the beginning of the article and what we already know about blobs and object URLs.

The logic of our helper function can be broken down as follows:. Here is what an implementation of this helper function will look like:. That was a pretty straightforward implementation of the download link helper function. Notice that the helper triggers a one-off automatic download of the blob content whenever it is called.