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Google Earth

How accurate are the images in Google Earth?

google earth precission

The theme of orthorectified  and satellite images’ precision of Google Earth is a record question in search engines; in these days where confusing precision with tolerance is as easy as losing the GPS in the taxi, it would be good to make a couple of analysis about whether or not to use these data for

In Google Earth pro, do images have better resolution?

Apparently there is some confusion about what Google Earth paid versions offer; there are those who believe that they are obtained coverage of better resolution. Indeed, you get better resolution, but no more coverage than what we see, what these tools offer is output better quality, for example to view, print, save, or send to

How to insert local images in Google Earth

In response to some questions I receive, I take advantage to leave the outcome for public use. Some time ago I had spoken how you can insert images linked to Google Earth point, but using Web addresses. In this case I want to show it using a local path: Assuming that the file is set

Google Earth; visual support for cartographers

Google Earth beyond being a tool for general entertainment has also become a visual support for mapping, both to show results as to review if work done is consistent; it also serves as a teaching tool for geography or geodesy classes. In this case I’m going to get assisted by Manifold GIS to build the

Google ContouringGE, it can be done!

TRANSLATION NOTES: Please read some comments at the end of this post. A few days ago a friend asked me how to do to see the contour lines in Google Earth using an application called ContouringGE 1.1 that is supposed to work with any 4x version, Windows XP or Vista. And because definitely I couldn’t,

Facebook: videos for surveyors

TRANSLATION NOTES: Please read some comments at the end of this post. At giant steps Facebook is becoming a common tool for business and education. Being an “Internet of people” companies have become the first look at the people interconnected with each other, which has given it a value beyond the conventional network. One of

How Mapserver works

TRANSLATION NOTES: Please read some comments at the end of this post. Last time we talk about some criteria of why MapServer and its basic installation. Now let’s look at some of its performance in a mapping exercise from the Chiapas buddies (*). Where it is mounted Once installed Apache, the default publishing directory for

Draw on line on Google Maps

Let’s imagine that we need to send a client a sketch map so he can view it online or in his GPS Navigator. For example, if we have a parcel for sale with the path to get there and its road’s indications. Another example could be an area of the MODIS satellite view from that

Contours from polylines (Step 2)

In the previous post we had georeferenced an image that contains contours; now we want to turn it to Civil 3D contours. Converting image curves to digital mode For this there are programs that virtually automate the process like AutoDesk Raster Design, equivalent to Bentleys Descartes or ESRI’s Arcscan. In this case I’ll do it

GPS Babel, the best to operate data

Of the best links I’ve received as Gabriel’s feedback from Argentina who told us about it, a couple of days ago. GPS Babel is a free application tool under GPL license, which runs on Windows, Linux and Mac. Ideal for downloading data from a computer and upload it directly to another. For example, you can