Tag Archives: nyc

Intro workshop date change

image1We’re changing the date for the Intro to GIS workshop from Friday 6/18 to 6/25 because both Eric and I are attending the NYCArc Users Group seminar held at John Jay College.

If you are interested in attending the all day event, registration info can be found on the NYC Arc Users Group site. There’s a good group of speakers and presentations lined up throughout the day.

NYPL Map Rectifier

nyplmap

 NYPL has a new toy tool for rectifying digitized historic maps from their collection called the NYPL Map Rectifier.

After creating an account, browse through the various maps and collections, choose a map to rectify, clip or mask the image, and finally export out to either a KML (for Google Earth) or a WMS base URL for use in a GIS software. Some maps have the option to export into either PNG or TIF formats as well.

There is also a vectorize option for a few of the rectified maps (I didn’t see this option on most maps, I’m guessing because it’s still in beta). For these, the vector layers can be downloaded in several formats including shapefile.

NYPL has also created a site called Relief Map Warper and has uploaded maps for Haiti which after georeferencing, the maps will become available in Open Street Map for tracing, and also made available for use on the ground by relief workers. I highly recommend joining and helping out if you can.

 

 

Latest edition of MapPluto Now Available

We now have the latest version of the New York City Planning Tax Lot Layers; MapPLUTO 09 V1 is here and includes data updated through Spring of 2009.  MapPLUTO models tax lots throughout New York City. This dataset represents a compilation of data from various government agencies throughout New York. The attribute data pertains to tax lot and primary building characteristics and information related to administrative and political districts for each tax lot in New York City. The underlying geography is derived from the Department of City Planning’s Tax Block and Tax Lot Base Map project.

The datasets are only available in the EDS lab during lab hours.

NYPL Mapping NYC

Matt Knutzen has done an amazing job putting together a KMZ index of digitized NYC map collections from the NYPL Map Division.

Check out his post with some recommendations on how to use it, and then download it.

There’s also a short video called Mapping the World which is part of the Treasures of NYPL Video Series which is worth checking out.

It’s narrated by both Alice Hudson, the Chief of the map division and Matt Knutzen, the Assistant Chief.

Working with NYC Spatial Data Workshop

As mentioned in today’s GIS workshop, I’m including both the presentation and the exercise using data from BYTES and Infoshare.

More or less, here’s a list of the websites we looked at, many of which can also be found on the EDS website Spatial Data webpage:

Another resource I did not mention but is well worth the time to check out is the NYPL Map Division blog which lists some of the unique maps and images available in their collection. Not only is this a valuable resource for maps related to NYC, but make sure to take a look at the attachments. Included in some of the posts are kml & kmz index files.

Also, for historic maps look through both the David Rumsey Map Collection and in the Library of Congress Map Collections. Everything in both of these sites are downloadable as high resolution images.

MapPLUTO 07C is Here

EDS now has the latest version of the New York City Planning Tax Lot Layers; MapPLUTO 07C is here and includes data updated through November 2007- March 2008.  MapPLUTO models tax lots throughout New York City. This dataset represents a compilation of data from various government agencies throughout New York. The attribute data pertains to tax lot and primary building characteristics and information related to administrative and political districts for each tax lot in New York City. The underlying geography is derived from the Department of City Planning’s Tax Block and Tax Lot Base Map project. The tax lots have been clipped to the shoreline, as defined by NYCmap planimetric features.

The datasets are only available in the EDS lab during lab hours.

Ride the City

Looking for a safe route for a bike ride through New York City? Ride the City helps find the safest bike route between two points by either entering in address locations or by placing points on a map. Emphasis is places on use of bike lanes and greenways and excludes roads not meant for bikes at all.

The base data mostly comes from the NYC Dept. of City Planning DCPLION Street data, the base map comes from Google Maps, and OpenLayers is used for the markers, vector lines, and pop-ups. More info on what was used can be found in the Ride the City FAQ.

NYC facilities ’08 released

bytes nyc facilities '08NYC Dept. of City Planning released the 2008 selected facilities and program sites recently. Although I haven’t played with it much, on first glance there’s about 4000 new records and all records now have X & Y values which is something I’m really happy about. The 2005 release has a little more than 1200 un-geocoded records, all of which where in the Parks sub-group.