A few months ago I conceived this series titled’ “LA Interchanges.” The plan was to make maps of the highway interchanges throughout Los Angeles, California. I’ve made maps using highway interchanges before (MacArthur Maze Quilt and Omaha Intersection) so this concept is not necessarily new, but the idea of having a series dedicated to one geographic region with a focus on one aspect of the built environment is what makes this series interesting to me. Ultimately I’ll make a special Google Map Mashup for this series, but it’s still got a long way to go- there are a lot of interchanges. The plan is to slowly go North to South looking for interesting interchanges.
When obtaining the imagery for this project I discovered that the USGS has removed the 2004 imagery of Los Angeles! This means that I cannot make comparison maps like I did with Dodgers Stadium – 2004 – 2006. Moreover, I think the quality of the 2006 imagery is poor. It’s bleached out and fuzzy looking at the full resolution. After reading the meta-data I know why- its from scanned photographs taken in 2002! So it’s not really new imagery after all, but reprocessed old imagery.
Central Park Quilt – South #2
|| 9/3/2006 || 10:49 am || Comments Off on Central Park Quilt – South #2 || ||
UCLA Quilt #4
|| 8/13/2006 || 2:21 pm || Comments Off on UCLA Quilt #4 || ||
This Diamond Quilt Projection Map is the fourth in my series of UCLA maps.
Pentagon Quilt #2
|| 4/23/2006 || 8:01 am || Comments Off on Pentagon Quilt #2 || ||
I might made another that creates a hexagon or an octogon out of the Pentagon. I think it would look really cool :-)
Oklahoma City Quilt
|| 2/3/2006 || 8:32 am || Comments Off on Oklahoma City Quilt || ||
After assembling the source imagery and rendering the map, I found some found beauty when post-processing it. Little did I know, but the found beauty lies directly at the center of this map. You’ll have to view the rendering details to read about what discovered. Let’s just say the beauty is a terrible beauty and oddly I can now add this map to the list of maps that contain a memorial…
Portland Quilt #2
|| 1/22/2006 || 12:15 pm || Comments Off on Portland Quilt #2 || ||
Philly Quilt #2
|| 1/12/2006 || 7:21 am || Comments Off on Philly Quilt #2 || ||
So I have yet to do so, but this weekend I plan on going through all my diamond quilt projection maps and re-categorizing them by rotation (0 & 45 degrees). I have yet to make any quilts that are wholly asymmetric. I have thought about making one or two, but for some reason I just don’t like the way they look. I guess it’s a sense of balance I am after and when I have one seam going horizontally across the page and add another seam that is 25 degrees rotated, it just looks awkward. I’d rather have clouds, than an asymmetric map.
As for this map, the seam makes an interesting reflection on the Pennsylvania Convention Center. What I also discovered last night, and is something I look forward to doing some more research on, is how there is a secondary texture that is being created in these maps.
When an aerial photograph or satellite image is taken there is usually some degree of distortion embedded into the orthorectified (defined as correcting distortions in an aerial image to produce a more accurate depiction of surface features) photograph. This distortion is usually caused by the angle at which the photograph was taken (directly above- nadir or at an angle- oblique). Thus if you take a photograph overhead at nadir (0 distortion at the center), then the buildings at the center will only show their tops, and the buildings at the edge will show their sides due to the angle of viewing. The interesting thing I discovered was the way the angles change with the seams. If you look closely at the details below, this angle creates an embedded texture of rotating the angle in which the buildings show. Essentially, its oblique alterations in the fabric of the quilt, and I think they make the tessellations even more intricate.