My Google Map Blog

Oil drilling?

by Willi1 on Feb.11, 2016, under 3D Models, Argentina, Australia, Brazil, California, Denmark, England, Germany, Google Earth News, Google Earth Tips, Google Sky, Google maps, Hawaii, Indonesia, Ireland, Italy, Japan, Kenya, Mexico, Natural Landmarks, Netherlands, Sightseeing, Street Views, USA

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Landsat coverage

by Timothy Whitehead on Feb.10, 2016, under 3D Models, Argentina, Australia, Brazil, California, Denmark, England, Germany, Google Earth News, Google Earth Tips, Google Sky, Google maps, Hawaii, Indonesia, Ireland, Italy, Japan, Kenya, Mexico, Natural Landmarks, Netherlands, Sightseeing, Street Views, USA

The Landsat 8 satellite circles the earth in a near polar orbit. See this YouTube video to see an animation of the path it takes. The resulting images are captured in specific spots on the surface of the earth laid out in rows and slightly diagonal columns which the USGS has numbered and calls the Worldwide Reference System 2 (WRS-2). WRS-2 has been used for Landsats 4,5,6 and 7. Landsats 1,2 and 3 used WRS-1. You can download a KML file here showing the outlines in Google Earth.

Because the Landsat orbit is slightly tilted with respect to Earth’s axis of rotation, the poles are not covered. Strangely there is also a gap at the anti-meridian (the 180th meridian). We don’t know what the reason for the gap is as the satellite clearly does fly over the anti-meridian. This becomes very noticeable if you turn on ‘historical imagery’ and look a the South Pole:


You can see in brighter white the area not covered by Landsat imagery as well as the odd gap at the antimeridien.

As we have mentioned before, Google Earth has an imperfect join at the anti-meridian and if you follow it you will notice a number of glitches in the imagery and there is even a noticeable line in the ocean floor data.


Noticeable glitches in imagery at the anti-meridian.

The post Landsat coverage appeared first on Google Earth Blog.

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A nice pair

by wentworth on Feb.10, 2016, under 3D Models, Argentina, Australia, Brazil, California, Denmark, England, Germany, Google Earth News, Google Earth Tips, Google Sky, Google maps, Hawaii, Indonesia, Ireland, Italy, Japan, Kenya, Mexico, Natural Landmarks, Netherlands, Sightseeing, Street Views, USA

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Happy binmen

by StreetViewFun.com on Feb.09, 2016, under 3D Models, Argentina, Australia, Brazil, California, Denmark, England, Germany, Google Earth News, Google Earth Tips, Google Sky, Google maps, Hawaii, Indonesia, Ireland, Italy, Japan, Kenya, Mexico, Natural Landmarks, Netherlands, Sightseeing, Street Views, USA

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Adding pictures to Street View

by Timothy Whitehead on Feb.09, 2016, under 3D Models, Argentina, Australia, Brazil, California, Denmark, England, Germany, Google Earth News, Google Earth Tips, Google Sky, Google maps, Hawaii, Indonesia, Ireland, Italy, Japan, Kenya, Mexico, Natural Landmarks, Netherlands, Sightseeing, Street Views, USA

This is part of a series of posts expanding on our Google Earth Blog FAQ.

We get quite a lot of email along the lines of: “Our business / rental property / property for sale is shown in Street View when it was under construction / being renovated and we feel this is negatively impacting us. Please update the Street View.” Google, however, does not capture Street View on demand and for good reason – they would be inundated with requests. But there is nothing stopping you from adding your own pictures to Google Maps and Google Earth and in most situations they will be treated with a greater priority than Street View imagery.

If you already have some good photos of the location, you can easily add them with Google Maps. Simply open the location in the Google Maps side panel either by searching for it or clicking on the place marker. Next, click ‘Add a Photo’ which appears both in the sidebar and as the last item in the list of photos. You can then upload your photo. Google Maps then shows a notice saying your photo will soon be available to be seen by the public. We assume that there is some sort of verification process to ensure that unsuitable photos are not displayed.

We found that you cannot add photos by this method to locations that do not already have markers.


Select a marker on the map (1) and then click ‘Add a Photo’ (either (2) or (3)

An alternative method is to use a smart phone and Google’s Street View app (Android iPhone). This will allow you to take panoramic photos and upload them to Street View with ease. Be sure to turn on your GPS for proper georeferencing. We believe that photos uploaded this way do not need to be attached to a placemark.

For more advanced options see this page from Google which also includes this interesting YouTube video, which has some interesting information about the trekker and how Street View is captured with it.

The post Adding pictures to Street View appeared first on Google Earth Blog.

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Small

by StreetViewFun.com on Feb.09, 2016, under 3D Models, Argentina, Australia, Brazil, California, Denmark, England, Germany, Google Earth News, Google Earth Tips, Google Sky, Google maps, Hawaii, Indonesia, Ireland, Italy, Japan, Kenya, Mexico, Natural Landmarks, Netherlands, Sightseeing, Street Views, USA

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We welcome you!

by sashafromdonetsk on Feb.08, 2016, under 3D Models, Argentina, Australia, Brazil, California, Denmark, England, Germany, Google Earth News, Google Earth Tips, Google Sky, Google maps, Hawaii, Indonesia, Ireland, Italy, Japan, Kenya, Mexico, Natural Landmarks, Netherlands, Sightseeing, Street Views, USA

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Rotating and Translating Placemarks, Polygons and Paths

by Timothy Whitehead on Feb.08, 2016, under 3D Models, Argentina, Australia, Brazil, California, Denmark, England, Germany, Google Earth News, Google Earth Tips, Google Sky, Google maps, Hawaii, Indonesia, Ireland, Italy, Japan, Kenya, Mexico, Natural Landmarks, Netherlands, Sightseeing, Street Views, USA

The Google Earth placemarks and drawing tools assume that whatever you are marking or drawing is in a fixed geographical location. Although you can move individual placemarks or individual points on a polygon or path, you cannot move multiple items at once, or even move a whole polygon or path.

We recently got an email from one of the pilots of the Geico Skytypers Airshow Team. They plan their airshows in part with the aid of Google Earth and when they want to do a show at a new airport they have to recreate all the placemarks and paths again. So, they asked whether there is a way to move a group of placemarks and paths to a new location. We have recently been developing a JavaScript KML library for our own use and thought this would be a good way to test it. So we have created a small tool that allows you to take any set of placemarks, polygons and paths and move them to a new location. You can also, optionally, rotate them about a point.

To use it, simply create a placemark nameed ‘from’ near the objects you want to move. Then create a new placemark named ‘to’ where you want them all moved to. Then save them all, including the new placemarks a KML file. Upload it below and click ‘Translate’. It should download a new KML file with all your placemarks, paths and polygons moved to the new location. The way it works, is it calculates the distance and bearing from the ‘from’ placemark to each latitude and longitude pair in the KML file. It then calculates the same distance and bearing from the ‘to’ placemark and moves the latitude and longitude pair to that location. So everything is moved in relation to the ‘to’ and ‘from’ placemarks. This avoids the distortion you would expect if you simply add a fixed amount to the latitudes and longitudes.

Rotation is achieved via two possible mechanisms. The easiest is to simply type in the rotation angle below. Alternatively, create two paths labelled ‘from’ and ‘to’ with just two points each and include them in the KML file. The tool will work out the angle between the two and use that as the rotation angle. So, for example, if you want to move a set of placemarks from one airport to another while maintaining the alignment with the runway, you put the ‘from’ path along the runway of the airport you are moving from and the ‘to’ path along the runway of the airport you are moving to, and everything should line up. The point of rotation is the ‘to’ placemark.

Optionally rotate clockwise by:

Do not rely on the results – double check everything. We take no responsibility or liability, for any damages resulting from the use of this tool. It has not been tested very thoroughly and is not guaranteed to be accurate. Our KML parser is incomplete and may exclude some elements. It tries to translate more than just placemarks, paths and polygons, but some will not work perfectly. Image overlays, for example, do not work properly. The ‘Camera’ and ‘LookAt’ elements are translated but may not be quite right. The JavaScript works entirely in the browser so your KML is never uploaded to our server.


Create ‘from’ and ‘to’ placemarks.


Everything is moved relative to the ‘from’ and ‘to’ placemarks.


‘From’ and ‘to’ guidelines let you rotate and easily line up with geographic features.


Remember that the translation and rotation are still relative to the placemarks. The guidelines only determine the angle of rotation.


If you put the ‘from’ and ‘to’ placemarks in the same spot you can rotate around that point.

If you find any bugs, or have suggestions for further enhancements, please let us know in the comments.

See here for a variety of other JavaScript utilities we have made for working with KML.

The post Rotating and Translating Placemarks, Polygons and Paths appeared first on Google Earth Blog.

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Skulls

by Morgoth on Feb.08, 2016, under 3D Models, Argentina, Australia, Brazil, California, Denmark, England, Germany, Google Earth News, Google Earth Tips, Google Sky, Google maps, Hawaii, Indonesia, Ireland, Italy, Japan, Kenya, Mexico, Natural Landmarks, Netherlands, Sightseeing, Street Views, USA

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These are some large christmas lights…

by rv4life on Feb.07, 2016, under 3D Models, Argentina, Australia, Brazil, California, Denmark, England, Germany, Google Earth News, Google Earth Tips, Google Sky, Google maps, Hawaii, Indonesia, Ireland, Italy, Japan, Kenya, Mexico, Natural Landmarks, Netherlands, Sightseeing, Street Views, USA

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