Hot answers tagged

18

You can save a layer in the KML format directly from QGIS, just right-click the layer name in the Layers window, click Save As.., and choose KML from the list of file formats:


17

ESRI Personally, I would steer clear of the ESRI stuff. I'm working with ESRI Geodatabases and find the restrictions perplexing and restrictive. The Enterprise offering may be different, but I choose not to hold my breath. (This is a biased opinion, and I'm suggesting you do some research and make your own decision here. I have little experience with ...


14

GEE really is a visualization platform, not a enterprise GIS. With a true GIS you also have the need/ability to create data and do more complex analysis with it aside from draping it over a globe. I have worked with systems where GEE was a compliment to our ESRI systems; so we didn't use ArcGIS Explorer to view the data, the users used Google Earth. You can ...


14

There are 2 immediate options that would best get you where you are trying to go. Your first, and probably easiest option, would be to download Quantum GIS, using the OSGeo4W Installer. Once you have installed that program, follow this tutorial, which covers Importing a .csv file to QGIS. Once you have imported the file, simply right click on the layer ...


11

WGS84, according to: http://support.google.com/earth/bin/answer.py?hl=en&answer=148110 Cheers, Ryan


9

Apart from, as @underdark says ST_Length() returns a cartesian distance between the two points which in an unprojected CS is meaningless in this case, I would go with the answer you get from PostGIS. Google Earth uses a spherical globe, whereas the WGS84 globe is a spheroid - it is slightly squashed at the poles. Over short distances, there won't be much ...


9

There are 3 possible reasons what could have happened: There was actually an island at that location, and is not longer present. The possibility of this is remote. This could have been a Copyright Easter egg. This is mis-information that is put in a map, so that when someone copies it, you can use it as a red flag to indicate that copying took place. See ...


8

You can do it with GeoServer. Installing and "linking" Geoserver to Postgres/PostGIS database is quite easy. KML KMZ Output


8

Apparently, the measurment ruler is not accurate over long distances > 5,000 km. Google's offical stance says, "makes no claims as to the accuracy of the coordinates in Google Earth. These are provided for entertainment only and should not be used for any navigational or other purpose requiring any accuracy whatsoever".


8

There is a Google AppSpot website that will let you overlay Google Maps (and many others) in Google Earth for Free (You do need have a gmail account and allow the site monitor your usage) http://ge-map-overlays.appspot.com/


8

The bridge is there both in the image but draped over google earth terrain and as a 3D structure. Turn on 3D building. Note that Google does not allow users to upload their 3D models (previously possible to create and upload with SketchUp a tool now owned by Trimble). The existing 3D buildings and structures have not (YET) been removed, but now new ...


7

I think the problem is your time span. Its supposed to be in the format YYYY-MM-DDThh:mm:sszzzzzz (see KML Ref) "1944-06-06T06:2010-10-26T06:30:08 " is wrong in the "mm" part. Also, if you're trying to animate a set of time periods rather than points, you need timestamp rather than span. Time should be before and after according to the documentation ...


7

One of the most spectacular animated maps I've seen is Google's Wind Map.


6

You can enable the KML/KMZ capability of an ArcGIS Server map service for rendering in Google Earth.


6

Kannel is the most known sms gateway (Free and Open Source), it runs both in Linux and Windows. You can connect it with a GSM modem or a mobile phone to send or receive sms (or MMS). If you have a GPS who can connect to GSM you have the solution. AND of course it connected with Mysql or Postgresql and more DB. From a database you can send the data to a web ...


6

Generally speaking, to convert a vector in QGIS you just need to right click on the layer in the TOC and select "save as...". In the dialog that will pop up you need to choose the CRS you need. Be sure that when loading the original vector this has (just check in the vector properties) the right CRS, it is not unusual to have vectors with non explicit CRS, ...


6

There is a little bit of information which might help you in your task. First you may need to download FWTools inorder to use geotifcp and listgeo. Create a TIFF File(You already did it..) Let us call it initialtif.tif find the image width and height(from where you saved it). imageWidth = 1016 imageHeight = 551 Create a World File for our ...


6

Save your money, buy nothing. Associate this script with a toolbox tool. Set it up with 4 parameters (Input Raster, Output Folder, Draw Order and Output Prefix). Run. Tried the SuperOverlay thing from GDAL and didn't think much of that horrible data structure. I never cleaned this up so it does processing it doesn't need to if I remember correctly, but it ...


6

Both Google Earth and Bing map use data from different sources (satellite images and ortho-photos). The horizontal accuracy depends on the source of the datasets and the level of orthorectification. It is usually better near cities than "in the middle of nowhere", but it primarily depends on the data sources. For instance, some countries have agreements with ...


6

Instead of creating a KML file then using that to access Google Earth, you can instead add your GeoServer WMS directly as an overlay as below: From the menu select Add, select Image Overlay, give the overlay a name select the Refresh tab select WMS Parameters select the Add button next to 'WMS Server:' drop down Add the URL to your service (without ...


6

The Google Earth Blog (note: this is not officially affiliated with Google) has an article here that might answer your question. It seems that some imagery is added to Google Earth and Google Maps Classic before being added to Google Maps. Edit: I'm unsure if you can point the OpenLayer plugin toward Google Maps Classic rather than Google Maps. Someone else ...


5

Google Earth can display a number of file formats, which may be generated programmatically, but in general the user controls the interaction. The Google Earth Plugin can use the rich set of tools available for web development, and allows DOM manipulation of the data used within the earth environment. You can interact with the user environment, modifying the ...


5

Google Earth is mostly nice visualization, not serious GIS. And may be that's a reason why you dont see much of it being discussed here :) ESRI AGS on the other hand is a Industry Standard GIS...super serious stuff, tons of features out of the box, plus plethora of customization options make it the numero uno choice for most of the enterprise GIS ...


5

Bill Huber gave the right answer in the comments. I delayed the answer by running the NGS inverse tool incorrectly. It looks like confusion between latitude and longitude order. I did put the coordinates in the wrong order when I used the NGS inverse tool. Stupid of me! If I enter values correctly, the geodesic distance is 256414.3059 m. If I enter the ...


5

You will need a KML file of the world borders as polygons. A quick Google turned up this Which seems to be pretty much what you want. I'm not sure if there is a water polygon in that dataset, so you may still have the sea floor. If that's the case, you'll need to import the KML file into something like Quantum GIS, create a rectangular polygon covering the ...


5

This website will create an elevation profile just like Google Earth and you can import a KML and export a CSV. Should give you the same results as Google Earth. This is the license restriction page that the tool links to.


5

One of the fastest and easiest possible solutions uses a short program written with the free open source program R (the R project for statistical computing). The following code computes the distance matrix (using spherical distances) between two arrays of (lon, lat) coordinates named customers and facilities and stores it in an array distances (with rows ...


5

Get the x,y coordinates of the boundaries of countries from the following website Natural Earth (thanks, Devdatta Tengshe) which has more accurate data than others I've tried. Then use ArcGIS 10.2 to open the map shape file and select the boundaries you need. Go to data management tools --features-- features vertices to points and open the generated table. ...


5

You can find a statement of the plugin author with a link to the terms of use here: https://www.mail-archive.com/qgis-developer@lists.osgeo.org/msg21665.html Search for "you must not access map tiles" in the TOS (https://developers.google.com/maps/terms). That's why the OpenLayers plugin is using only the Javascript API with a WebKit Browser. My ...


5

If your main reason for looking for another software is adding shapefiles, then you can actually stick with Google and use Google Earth Pro. Google Earth Pro is able to load shapefiles, and as of January 2015 you can get it for free. All you need to do is get a key, and then you can download the program. You can look into its functionality and decide ...



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