Outdated Google Maps and tools created 2010-12 with MAGIC UConn Libraries. Simplified versions of the original open-source code to more easily insert interactive maps as iframes into the web edition of On The Line book. See newer Leaflet maps in https://github.com/ontheline
- All underscores (_) in the original pathnames have been changed to hyphens (-) to be consistent with new OTL digital material
- otl-custom.css created to address timeslider css issues
- thumb-n.gif uploaded to address depreciation issue in timeslider
- Continue to reformat all maps to fit within OnTheLine PBT theme, which has max width of 700 px, and is responsive for mobile devices
- Should I set all div tags as percentages, rather than pixels, to auto-resize within the browser? Or keep as 700px wide?
- Should I set my iframe shortcode to be 100% of space, or 700 px width?
- MAGIC has agreed to update data for home value index timeslider
- long-term: consider pros and cons of converting timeslider maps to Leaflet auto-play timesliders
- for Google Map timesliders, consider replacing deprecated YUI slider (http://yui.github.io/yui2/docs/yui_2.9.0_full/slider/index.html) with jQuery slider (https://jqueryui.com/slider/#steps)
- for zoning map, try to insert additional georeference TIF layers (1930, 1951, etc.) in drop-down menu
http://ontheline.github.io/otl-magic/timeslider-racethematic.html
iframe code to insert
[iframe src="http://ontheline.github.io/otl-magic/timeslider-racethematic.html" width="100%" height="720"]
See original map, sources, and credits at UConn Libraries MAGIC: http://magic.lib.uconn.edu/otl/timeslider_racethematic.html
Original caption: Drag the time slider (or click on a decade) to view changes in the racial population of the Hartford region over time. For more detail, click on any area to view the town name and tract-level census data.
http://ontheline.github.io/otl-magic/dualcontrol-zoning-westhartford.html
iframe code to insert
[iframe src="http://ontheline.github.io/otl-magic/dualcontrol-zoning-westhartford.html" width="100%" height="600"]
See original map, sources, and credits at UConn Libraries MAGIC: http://magic.lib.uconn.edu/otl/dualcontrol-zoning-westhartford.html
Original caption: In 1924, during its early phase of mass suburbanization, West Hartford became the first Connecticut municipality to enact zoning regulations to manage residential, commercial, and industrial land use. This dual-view interactive tool allows users to compare maps from consultant Robert Whitten’s West Hartford Zoning report (1924) to the present. The original report stated that West Hartford’s primary function was to serve the housing needs of “all classes and all grades of economic ability. . .[including] factory workers, office employees, and the various business and professional groups” who work in Hartford. But it also separated town residents by wealth and excluded others who could not afford to live there. Zoning policies created residential districts with minimum lot sizes to promote more expensive single-family homes, thus making multi-family housing “uneconomic” to build, without expressly prohibiting it. Read more and share your comments at On The Line.
To send web visitors to any Connecticut location on this map, create a URL link in this format: (display)
Sources: Whitten, Robert Harvey. West Hartford Zoning: Report to the Zoning Commission on the Zoning of West Hartford. West Hartford, Conn: Zoning Commission, 1924 (courtesy of the Connecticut State Library).
Zoning maps, 1930, 1951, 1960, 1970, 1988, Town of West Hartford, Connecticut (with assistance from Jeffrey Roller).
http://ontheline.github.io/otl-magic/doclink-covenant.html
See original map, sources, and credits at UConn Libraries MAGIC: http://magic.lib.uconn.edu/otl/doclink_covenant.html
Original caption: Click a colored rectangle to view racial restrictions, typically against residents “other than the Caucasian race,” that some housing developers wrote into property deeds in the Hartford region. In 1921, the U.S. Supreme Court affirmed the right of private property owners to insert these restrictions, but later ruled in the 1948 Shelley v Kraemer case that they were no longer enforceable by governmental authority. Yet restrictive language still exists in the legal property records today. To date, we have found racial covenants for a handful of housing developments in West Hartford. Have you seen or heard about other restrictions, in other towns?
http://ontheline.github.io/otl-magic/doclink-holc.html
See original map, sources, and credits at UConn Libraries MAGIC: http://magic.lib.uconn.edu/otl/doclink_holc.html
Original caption: Click colored regions to view pages from the Home Owners' Loan Corporation (HOLC) appraisal report, which this federal agency created with local lenders to evaluate the "trend of desirability" in residential areas in Hartford and over 200 other cities during the late 1930s. The HOLC color-coded map portrayed the highest grade (A) in green and the lowest grade (D) in red. This government agency considered not only housing conditions but also the "social status of the population," and downgraded neighborhoods with non-white, immigrant, and poor residents. In later decades, these actions became associated with the discriminatory practice of "redlining." See also the two original maps (Hartford-West Hartford and East Hartford), the full appraisal report, and a searchable spreadsheet.
Links embedded in original caption: -http://magic.lib.uconn.edu/magic_2/raster/37840/hdimg_37840_000_1937_s00_HOLC_1_tf_hartford.zip -http://magic.lib.uconn.edu/magic_2/raster/37840/hdimg_37840_000_1937_s00_HOLC_1_tf_east_hartford.zip -http://magic.lib.uconn.edu/magic_2/vector/37840/primary_source/hdimg_37840_064_1937_holc_national_archives_trinity.pdf -http://magic.lib.uconn.edu/magic_2/vector/37840/primary_source/hdimg_37840_064_1937_holc_national_archives_trinity.xls
http://ontheline.github.io/otl-magic/timeslider-homevalue.html
See original map, sources, and credits at UConn Libraries MAGIC: http://magic.lib.uconn.edu/otl/timeslider_homevalue.html
Original caption: Drag the time slider (or click on a decade) to view the relative value of a single-family home in the Hartford region. Click on any town to view its name. Notes: Average Dwelling Value, indexed to Hartford region mean, where darker green means higher dollar value. 1910-1980 based on CT Tax Commissioner assessed value of average dwelling for Hartford County, while 1990-2000 (actually 1991, 2002) based on CRCOG single-family home sales for Hartford region.
http://ontheline.github.io/otl-magic/dualzoom-schooldistricts.html
See original map, sources, and credits at UConn Libraries MAGIC: http://magic.lib.uconn.edu/otl/dualzoom_schooldistricts.html
Original caption: Compare the boundaries and enrollments of any two school districts listed to view differences between city versus county-wide public school systems in the United States. Read more and share your story at On The Line. Sources: US Census, 2010 TIGER/Line Shapefiles: School Districts; US DOE, CCD, 2009-10 school year district enrollments
http://ontheline.github.io/otl-magic/dualcontrol-aerialchange.html
See original map, sources, and credits at UConn Libraries MAGIC: http://magic.lib.uconn.edu/otl/dualcontrol_aerialchange.html
Original caption: Search any Connecticut address to compare aerial imagery from two time periods, side by side. Our default map displays 1934 versus the current satellite view (with additional layers from the 1950s, 1970s, and 1990s to come). For example, view the influence of post-war interstate highway development on urban neighborhoods (such as the I-84 exchange in Hartford’s Parkville neighborhood)(http://magic.lib.uconn.edu/otl/dualcontrol_aerialchange.html?lat=41.76&long=-72.701&layerA=1934&zoom=15), or suburban commercial and residential development on formerly rural farmland (such as WestFarms Mall in Farmington/West Hartford)(http://magic.lib.uconn.edu/otl/dualcontrol_aerialchange.html?lat=41.723321&long=-72.762176&layerA=1934&zoom=15).
Copy the dynamic web link below to share the map currently shown above: (displays link here) Read more and comment at On The Line.
YouTube demo: https://youtu.be/VsyZyHo9j6w