Georeferencing a Googlemap map with Arcmap

Before I had spent a few posts, talking about georeferencing images or maps using manifolds, Autocad y Microstation.

To complete the cycle, doing it with ArcGIS, I found an article by Adriano, who shows us the sequence step by step.

This is the view in Google maps, in map condition.
To see the orthophoto, the "satellite" option is activated

google maps georeferencing

Then this image is copied via "printscreen", and the edges are removed, so that the view and view configuration tools are not visible. (in the other post it shows how to do it if what you have are utm coordinates or control points)

google maps

Then it is inserted in Arcmap, through the option "ad data", it is presumed that we have a feature class, with the street axes of the same area. Since when entering the image we do not know where it is, you do right click on it and choose "zoom to layer", so it is available on your screen.

Activate the option "georeferencing" using view / toolbars / georeferencing. To bring it close to the map or control points you can add one, with a point of origin and destination visible on your screen, this will make you activate the option "link table" you can see it, leave the same "source" and add it to the point of destination known as «map» one of your known points, so the image will be close to the area of ​​interest.

georeferencing in arcgis

Once both the image and the street layer are visible, the control points are defined; for this you only click on the point (interpreted) of the image and another click on the known point of the map.
These can be in a txt file, and can be entered using the "load" button, but you must have them in a format separated by spaces of the form "point number", "origin length", "origin latitude", "destination length", destination latitude ".
In the button «view link table» you can see each of the control points, according to the data you have, you can add enough so that the image deforms as close as possible to the shape of streets.

feature class arcgis

arcgis control points

After the image acquires the transformations "georeferencing / update georeferencing" is applied.

Georeference

arcgis georeferencing image

The ideal is to export it to a format that preserves the georeference, for that is done right mouse button, on the image, then data / export data and choose the format, which can be img, tiff or as grid ... even in mosaic.

Here you can see the complete post (in Portuguese)

15 Replies to "Georeferencing a Googlemaps map with Arcmap"

  1. Hello ... I'm interested in this topic of georeferencing. But I'd like you to do it with google earth..porfa and with the argis 9.2 ... once I saw a mosaic of images that had been georeferences ... all were from google earth ... thanks for everything ... !!!

  2. How do I do for saver where these courses are taught?

  3. It's a great site, I hope to collaborate when I can, keep going

  4. From there you can change the width and height, the ones I put are examples, always those measurements are in pixels

    you also change the file url

  5. You must save the video in a certain place of the web, so that you have the url address of the file. Then you insert it into a simple html code to embed video like:

    <object width = "450" height = "350"> <embed src = http: // url of the file type = "application / x-shockwave-flash" width = "450" height = "250"> </ embed> </ object>

  6. the video is personal and I want to show it only some colleagues

  7. I want to know how I can add a video to a pocision brand

  8. Hello, could anyone tell me how I solved georeferencing? because I have tried and did not add the image, the rest of the steps are not very clear, in addition in the fourth image appears a toolbar that apparently is used and I do not know what it is.

    Thanks ....

  9. HELLO, WHAT A PLEASURE TO BOTHER YOU SO, BUT THE TRUTH MEETS A LOT OF GEOREFERENCING AN IMAGE.
    YOU MAY PLEASE EXPLAIN THIS SECTION TO ME WITH MORE DETAIL. THANK YOU
    »To bring it near the map or the control points you can add one, with a point of origin and destination visible on your screen, this will make activating the“ link table ”option you can see it, leave the same“ source ”and add to the destination point known as "map" one of your known points, so the image will be close to the area of ​​interest. »

  10. You do the print screen, then paste it in Mspaint, there you cut out what you do not occupy and save it as jpg on your hard drive.

    Then you call it from Arcmap, with the same “add data” button as you are going to call a shape, and choose the image from where you saved it.

  11. you could explain to me the step after doing the printscreen, where I save the image and how much to the arcmap?

  12. try to follow the steps and do not, the georeferencing window does not appear with the options enabled

  13. Now that you talk about exporting and mentioning the GRID, IMG or TIFF format options .... How can I export to ECW with the Ermapper plugin installed?

    I'm not an Arcgis user, but the other day I was asked that question and I did not know how to do it. Frankly, Arcgis' way of working seems completely contrary to usability.

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