[Qgis-user] How do I register a Google Map?

Alex Mandel tech_dev at wildintellect.com
Mon Feb 3 13:09:13 PST 2014


On 02/03/2014 01:07 PM, Etienne Tourigny wrote:
> Simple jpeg files do not have any spatial information.
> 
> you should use the Open Layers plugin - you need to install it with the
> Plugin Manager(Plugins->Manage and install plugins) and then add a Google
> maps layer through the Plugins->Open layers menu item.
> 
> 
> 
> 
> On Mon, Feb 3, 2014 at 6:28 PM, Mike Keelan <tmike.elhoa at comcast.net> wrote:
> 
>>  Hi all.
>>
>> I am new to this program use.  I have the following setup.
>>
>>    - I'm trying to use Qgis 2.0
>>    - My PC is with Windows 8 OS
>>
>> The program downloaded successfully and I'm able to load my .shp and Ortho
>> layers, all well and good.  Still learning, but ..........  Here is my
>> current problem.
>>
>> I need to overlay a Google map containing some lake bottom contour lines.
>> The file I pulled in as a layer is a .jpg.  I'm able to view this layer if
>> I zoom to its extent seperatly from the other layers, so I know it is there.
>>
>>    1. How do I get this layer in the location I need it to be in relative
>>    to my other layers?  Looking at the coordinates for this layer extent it
>>    has defaulted to 0.0 at the upper-left hand corner.  From the properties
>>    box it will not let me change this info?
>>    2. If there is a way the register this layer, it looks like the scale
>>    is about 50% of the size of my other layers.  I got this from using the
>>    linear measurement tool on both layers.  Is there a way to adjust the size
>>    of the jpg layer?
>>     3. In making the above measurements I noticed that the units were
>>    given in meters even though the coordinate system selected is indicated in
>>    FT for both layers.  ??
>>
>> Hope some one can point me in the right direction.
>>
>> Mike K
>>

If it's really from Google Maps, try the OpenLayers plugin which will
live overlay maps from the web as a layer, then you don't need to
georegister the image yourself.

Enjoy,
Alex




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