I would appreciate pointers on using GoogleEarth views in grassu7. I find
many URLs on saving points ('places') and routes to .kml files, and on
loading .kml files of points and routes to GoogleEarth, but not how to save
the viewed image as a georeferenced point vector or raster file.
I can save the image as a .jpg yet do not see an appropriate i.* module to
allow its use in grass7. The general image processing web page suggests that
this might be possible.
If I save the GE image as a .jpg and convert it to .png format (supported
by r.in.gdal) will this be the solution?
When it comes to visualizing your results on some basemap, I’d warmly recommend switching to QGIS and preparing your map layouts in the QGIS map composer. You have access to all your GRASS maps thru the QGIS GRASS provider, and you can use the QGIS plugin “QuickMapServices” to have access to several online WMS services for a choice of background maps.
···
On 07/04/2018 08:32 PM, Rich Shepard wrote:
I would appreciate pointers on using GoogleEarth views in grassu7. I find
many URLs on saving points (‘places’) and routes to .kml files, and on
loading .kml files of points and routes to GoogleEarth, but not how to save
the viewed image as a georeferenced point vector or raster file.
I can save the image as a .jpg yet do not see an appropriate i.* module to
allow its use in grass7. The general image processing web page suggests that
this might be possible.
If I save the GE image as a .jpg and convert it to .png format (supported
by r.in.gdal) will this be the solution?
When it comes to visualizing your results on some basemap, I'd warmly
recommend switching to QGIS and preparing your map layouts in the QGIS map
composer. You have access to all your GRASS maps thru the QGIS GRASS
provider, and you can use the QGIS plugin "QuickMapServices" to have
access to several online WMS services for a choice of background maps.
Micha,
I've not before had need to learn qgis. Yes, it can apparently do a
'better' job of map publishing than can grass, but that's not what I was
wanting to do.
When I view a project's area on Google-Earth my reading of instructions
and GE-associated web pages suggests there are two options for saving the
view: as a bit-mapped .jpg (which can be converted to .png) without any
associated geographic coordinates or as a point vector of a designated
'place' saved as a .kml file.
I wanted to learn if there's a way of saving the GE view as a
georeferenced .kml that could be imported into grass and draped over a
shaded DEM or used as an underlay with grass vector maps on top. My
understanding is there there is no way to do this.
When it comes to visualizing your results on some basemap, I'd warmly
recommend switching to QGIS and preparing your map layouts in the QGIS
map
composer. You have access to all your GRASS maps thru the QGIS GRASS
provider, and you can use the QGIS plugin "QuickMapServices" to have
access to several online WMS services for a choice of background maps.
Micha,
I've not before had need to learn qgis. Yes, it can apparently do a
'better' job of map publishing than can grass, but that's not what I was
wanting to do.
When I view a project's area on Google-Earth my reading of instructions
and GE-associated web pages suggests there are two options for saving the
view: as a bit-mapped .jpg (which can be converted to .png) without any
associated geographic coordinates or as a point vector of a designated
'place' saved as a .kml file.
I wanted to learn if there's a way of saving the GE view as a
georeferenced .kml that could be imported into grass and draped over a
shaded DEM or used as an underlay with grass vector maps on top. My
understanding is there there is no way to do this.
Thanks,
Rich
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grass-user mailing list
On Sat, Jul 7, 2018 at 10:43 PM, Rich Shepard <rshepard@appl-ecosys.com> wrote:
...
When I view a project's area on Google-Earth my reading of instructions
and GE-associated web pages suggests there are two options for saving the
view: as a bit-mapped .jpg (which can be converted to .png) without any
associated geographic coordinates
... so that would be raster map then, to be imported with r.import (or
r.in.gdal).
Yet rather useless since no real coordinates included as you say.
or as a point vector of a designated 'place' saved as a .kml file.
... so that would be vector map then, to be imported with v.import (or
v.in.ogr). Along with the difficulties which may come with KML.
I wanted to learn if there's a way of saving the GE view as a
georeferenced .kml that could be imported into grass and draped over a
shaded DEM or used as an underlay with grass vector maps on top.
My understanding is there there is no way to do this.
That means you want to export from GE the vector area? And import that
to GRASS GIS?
Or also the related satellite imagery (which I doubt you can export at
all to a GIS).
That means you want to export from GE the vector area? And import that to
GRASS GIS? Or also the related satellite imagery (which I doubt you can
export at all to a GIS).
Markus,
That's the answer, as I thought it would be. There is no way to take a GE
view and use it in a GIS.