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Aerial imagery from sources such as Google Earth have some horizontal positional accuracy problems. A 2013 paper from the Earth Institute at Columbia University showed that the Root Mean Square Error (RMSE) can be significant (8.2m for Google Maps in the study). The RMSE of horizontal accuracy appears to vary greatly between studies. Reasons for this may ...


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ogr2ogr will (sort of) do it. Scroll down to "How do I translate a mixed geometry file to shapefile format?" % ogr2ogr out_point.shp mixed.kml -where 'ogr_geometry = "POINT"' % ogr2ogr out_line.shp mixed.kml -where 'ogr_geometry = "LINESTRING"' % ogr2ogr out_poly.shp mixed.kml -where 'ogr_geometry = "POLYGON"' This stack answer covers it as well. ...


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You are encountering the difference between a projected coordinate system and a geographic coordinate system. Google Earth reads all coordinates as if they were in Geographic Coordinate System WGS 1984, a.k.a. WGS84. So latitude/longitude coordinates (45.215, -162.6548) will show up correctly (as long as you use the WGS84 datum). Your UTM data, on the ...


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This is more a comment than an answer.... Converted it with FME workbench (safesoftware) is a 15mb.kmz can add styles to the layers too. the data was a personal geodatabase (.mdb).


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To export all data within the mdb file, first add them to a mxd (map) and then save the mxd and use "Map to kml" tool. To export only one feature class use "Layer to Kml" tool.


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Also there is a plugin called CustomGarminMap for exporting your QGIS canvas to .kmz format that is used both on Google Earth and Garmin devices.


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The easiest way is to see if there's LiDAR data for the area you are looking at. Go to NSF OpenTopography to see if there is any available for your area. Then Shapespeare on YouTube has a pretty straightforward tutorial on how to print from LiDAR data here.


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Could you try setting the clickable attribute to true? polygons.push( new google.maps.Polygon({ paths: arr, strokeColor: '#FF0000', strokeOpacity: 0.8, strokeWeight: 1, fillColor: '#FFF000', fillOpacity: 0.8, clickable: true }) ); I don't remember if it's enabled by default.


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I can appreciate that EarthPoint's overlays are free and easy to access, but I found that their low resolution didn't work in my application. If you are working in only one 7.5' quadrangle, or perhaps only a few, I've found it best to download the PDF's from USGS (it's free) and create my own superoverlays. (I'm assuming you're in the USA because I think ...


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One option (not elegant but quick) is to view the locale in GE, then press SHIFT + LEFT/RIGHT ARROW KEY. Try this and you'll get a feel for best view angle, etc. Once you get good at that, use the Record-a-Tour button on the toolbar to record your motion. Save the tour and you'll see it appear in your My Places. Then if you want to view the code you've ...


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I finally found another service that will do what I want... http://www.earthpoint.us/Default.ashx? <?xml version="1.0" encoding="UTF-8"?> <kml xmlns="http://www.opengis.net/kml/2.2" xmlns:gx="http://www.google.com/kml/ext/2.2"> <NetworkLink> <name>Earth Point Topo Map</name> <description>Download in progress. Please ...


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You have to reproject every line into an azimutal equidistant projection based on one of its points, then densify the line. Since all points of your grid are connected to three lines, you can densify those three with the same projection. The Densify Geometry tool allows to densify only selected elements. See my example here on how to create great circles ...


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One place to look for imagery sources is OpenStreetMap's "editor imagery index", which is basically a machine readable list of imagery provider URLs and extents. https://github.com/osmlab/editor-imagery-index The needs of your project aren't exactly the same as OSM's but there is overlap. In this case, in the Nairobi region it shows Bing and Mapbox ...


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Not exactly "high-resolution," but the price is right. Esri's World Imagery map service presents satellite imagery for the world and high-resolution imagery for the United States and other areas around the world.


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Try layering the TOC something like this (disregarding the label layers) and then use Map to KML: Districts: empty fill, white lines 1pt Constituencies: empty file, black lines 2pt Full Area (run dissolve tool on one of the above layers): red fill, blue outline 3pt It's especially useful to have separate layers because you can toggle them in GE. If you ...



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