U OF T Map and Data Library staff recently georeferenced all the 1947 Toronto air photos and have made them available for free to download from our servers. See the air photos here http://tinyurl.com/cqmykcc. The originals are from http://www.toronto.ca/archives/maps/aerial-photographs-1947.htm -- Marcel Fortin
Map and Data Library, University of Toronto
Thanks, Marcel. I couldn't actually read the georeferencing data; either
they'd all load one on top of the other, or created a crazy quilt with
random gaps.
If you're looking for newer air photos at no cost and unrestricted, the
USGS's Large Scale Aerial Imagery covers a lot of southern Ontario (and
anywhere near the US border), and is shot at 1 foot/pixel and is 2008 or
newer. The WMS is a bit slow, and only works if you're zoomed in really
close, but I've verified it against many surveyed landmarks, and it's
pretty good. Details page:
http://raster.nationalmap.gov/ArcGIS/rest/services/TNM_Large_Scale_Im...
Hi Stewart,
what gis software were you using to view the images?
Marcel
On 8/14/2012 20:37, Stewart C. Russell wrote:
> Thanks, Marcel. I couldn't actually read the georeferencing data; either
> they'd all load one on top of the other, or created a crazy quilt with
> random gaps.
> If you're looking for newer air photos at no cost and unrestricted, the
> USGS's Large Scale Aerial Imagery covers a lot of southern Ontario (and
> anywhere near the US border), and is shot at 1 foot/pixel and is 2008 or
> newer. The WMS is a bit slow, and only works if you're zoomed in really
> close, but I've verified it against many surveyed landmarks, and it's
> pretty good. Details page:
> http://raster.nationalmap.gov/ArcGIS/rest/services/TNM_Large_Scale_Im...
> cheers,
> Stewart
-- Marcel Fortin
Map and Data Library, University of Toronto
> Hi Stewart,
> what gis software were you using to view the images?
> Marcel
> On 8/14/2012 20:37, Stewart C. Russell wrote:
>> Thanks, Marcel. I couldn't actually read the georeferencing data; either
>> they'd all load one on top of the other, or created a crazy quilt with
>> random gaps.
>> If you're looking for newer air photos at no cost and unrestricted, the
>> USGS's Large Scale Aerial Imagery covers a lot of southern Ontario (and
>> anywhere near the US border), and is shot at 1 foot/pixel and is 2008 or
>> newer. The WMS is a bit slow, and only works if you're zoomed in really
>> close, but I've verified it against many surveyed landmarks, and it's
>> pretty good. Details page:
>> http://raster.nationalmap.gov/ArcGIS/rest/services/TNM_Large_Scale_Im...
>> cheers,
>> Stewart
> -- > Marcel Fortin
> Map and Data Library, University of Toronto
Yes, I can see what you mean. We're encountering the same thing here. We will load some JPEGs that should fix the problem. I hope to have them up today.
> QGis on Mac. Having to rely on the gdal plugin for MrSid.
> What CRS are they in?
> Cheers
> Stewart
> On 2012-08-15, at 9:15, Marcel Fortin<marcel.for...@utoronto.ca> wrote:
>> Hi Stewart,
>> what gis software were you using to view the images?
>> Marcel
>> On 8/14/2012 20:37, Stewart C. Russell wrote:
>>> Thanks, Marcel. I couldn't actually read the georeferencing data; either
>>> they'd all load one on top of the other, or created a crazy quilt with
>>> random gaps.
>>> If you're looking for newer air photos at no cost and unrestricted, the
>>> USGS's Large Scale Aerial Imagery covers a lot of southern Ontario (and
>>> anywhere near the US border), and is shot at 1 foot/pixel and is 2008 or
>>> newer. The WMS is a bit slow, and only works if you're zoomed in really
>>> close, but I've verified it against many surveyed landmarks, and it's
>>> pretty good. Details page:
>>> http://raster.nationalmap.gov/ArcGIS/rest/services/TNM_Large_Scale_Im...
>>> cheers,
>>> Stewart
>> --
>> Marcel Fortin
>> Map and Data Library, University of Toronto
-- Marcel Fortin
Map and Data Library, University of Toronto
Yes, I can see what you mean. We're encountering the same thing here. We will load some JPEGs that should fix the problem. I hope to have them up today.
> QGis on Mac. Having to rely on the gdal plugin for MrSid.
> What CRS are they in?
> Cheers
> Stewart
> On 2012-08-15, at 9:15, Marcel Fortin<marcel.for...@utoronto.ca> wrote:
>> Hi Stewart,
>> what gis software were you using to view the images?
>> Marcel
>> On 8/14/2012 20:37, Stewart C. Russell wrote:
>>> Thanks, Marcel. I couldn't actually read the georeferencing data; either
>>> they'd all load one on top of the other, or created a crazy quilt with
>>> random gaps.
>>> If you're looking for newer air photos at no cost and unrestricted, the
>>> USGS's Large Scale Aerial Imagery covers a lot of southern Ontario (and
>>> anywhere near the US border), and is shot at 1 foot/pixel and is 2008 or
>>> newer. The WMS is a bit slow, and only works if you're zoomed in really
>>> close, but I've verified it against many surveyed landmarks, and it's
>>> pretty good. Details page:
>>> http://raster.nationalmap.gov/ArcGIS/rest/services/TNM_Large_Scale_Im...
>>> cheers,
>>> Stewart
>> --
>> Marcel Fortin
>> Map and Data Library, University of Toronto
-- Marcel Fortin
Map and Data Library, University of Toronto
> Have you considered publishing this on buzzdata?
> >>> Marcel Fortin <marcel.for...@utoronto.ca> 8/16/2012 12:50 PM >>>
> Yes, I can see what you mean. We're encountering the same thing here. We
> will load some JPEGs that should fix the problem. I hope to have them
> up today.
> On 8/15/2012 10:50, Stewart C. Russell wrote:
> > QGis on Mac. Having to rely on the gdal plugin for MrSid.
> > What CRS are they in?
> > Cheers
> > Stewart
> > On 2012-08-15, at 9:15, Marcel Fortin<marcel.for...@utoronto.ca> wrote:
> >> Hi Stewart,
> >> what gis software were you using to view the images?
> >> Marcel
> >> On 8/14/2012 20:37, Stewart C. Russell wrote:
> >>> Thanks, Marcel. I couldn't actually read the georeferencing data;
> either
> >>> they'd all load one on top of the other, or created a crazy quilt with
> >>> random gaps.
> >>> If you're looking for newer air photos at no cost and unrestricted, the
> >>> USGS's Large Scale Aerial Imagery covers a lot of southern Ontario (and
> >>> anywhere near the US border), and is shot at 1 foot/pixel and is
> 2008 or
> >>> newer. The WMS is a bit slow, and only works if you're zoomed in really
> >>> close, but I've verified it against many surveyed landmarks, and it's
> >>> pretty good. Details page:
