| SELECT ?amphitheater ?capacity | |
| FROM <http://rdf.greggkellogg.net/distiller?format=rdfxml&in_fmt=jsonld&uri=http://sfsheath.github.io/roman-amphitheaters/roman-amphitheaters.geojson> | |
| WHERE { | |
| ?amphitheater ?x ?y . | |
| ?y <http://dbpedia.org/property/seatingCapacity> ?capacity . } |
| period,start_date,end_date | |
| archaic,-700,-480 | |
| classical,-480,-323 | |
| hellenistic,-323,-31 | |
| roman-regnal,-753,-507 | |
| roman-republican,-507,-31 | |
| roman-imperial,-31,337 | |
| late-roman,337,610 | |
| byzantine,610,1453 | |
| medieval,500,1500 |
Code from mbostock. Data from wikipedia.
Quoting mbostock's description of what's going on here, "The tree layout implements the Reingold-Tilford algorithm for efficient, tidy arrangement of layered nodes. The depth of nodes is computed by distance from the root, leading to a ragged appearance. Cartesian orientations are also supported. Implementation based on work by Jeff Heer and Jason Davies using Buchheim et al.'s linear-time variant of the Reingold-Tilford algorithm."
| { | |
| "name": "Imperium Romanorum", | |
| "children": [ | |
| { | |
| "name": "Urbs Romae", | |
| "children": [ | |
| { "name": "Regio I Porta Capena" }, | |
| { "name": "Regio II Caelimontium" }, | |
| { "name": "Regio III Isis et Serapis" }, | |
| { "name": "Regio IV Templum Pacis" }, |
Click on any circle to zoom in or out. Code by @mbostock . Data adapted from Wikipedia with relative sizes mostly made up for effect.
The arc is from Alexandria, Egypt to Bagram, Afghanistan. A rich deposit of Roman material was found at the latter site. A globe such as this could serve as a useful basemap for a visualization of very long-distance trade in the Roman period.
From the README of the gist I forked this from: "Building on this - experimenting with fake 3d svg arcs using two nested orthographic projections and cardinal line interpolation"
The scatterplot matrix visualizations pairwise correlations for multi-dimensional data; each cell in the matrix is a scatterplot. This example uses Anderson's data of iris flowers on the Gaspé Peninsula. Scatterplot matrix design invented by J. A. Hartigan; see also R and GGobi. Data on Iris flowers collected by Edgar Anderson and published by Ronald Fisher.
See also this simpler static version without brushing.
The arc is from Alexandria, Egypt to Bagram, Afghanistan. A rich deposit of Roman material was found at the latter site. A globe such as this could serve as a useful basemap for a visualization of very long-distance trade in the Roman period.
From the README of the gist I forked this from: "Building on this - experimenting with fake 3d svg arcs using two nested orthographic projections and cardinal line interpolation"
From original gist: "An interactive version of a Reingold–Tilford tree. Click on the nodes to expand or collapse."
The above figure allows relationships between the "year created", "seating capacity", elevation, longitude and latitude of Roman amphitheaters to be explored. The data is incomplete, though it is being regularly expanded and improved.
Drag your mouse along the axes to define ranges of interest. Hover over a blue line to which amphitheater it represents.
The following SPARQL should be close to what is used to generate the CSV, though I don't guarantee that I've kept it up to date.
PREFIX dc: <http://purl.org/dc/terms/>