Read about the project in the WAML Bulletin. The behavior can be used to facilitate panning and zooming for any chart type.
First selectĪ chart series and then select the data type and click the Download button. Fortunately, D3 has d3.zoom, a behavior parallel to d3.drag, but d3.zoom. You can use the download data button to select and download an entire chart series in either GeoJSON or CSV format. You can also use the Search bar to locate any chart by geographic location or its 'Title' or 'label.' To make you chart show something more than 'Waiting for data' you have to pass it the data in An圜hart XML format - as a string or as a file, with the help of setXMLData and setXMLFile methods, respectively. In the event that there are overlapping charts or charts that cover the same geographic extent, use the forward and back arrows in the popup to cycle through the selected charts. As the result you should see the following: Live Sample: Simple Chart Download Sample: Simple Chart Source Code Working with data.
Use the Full Image button in the popup to display a high-resoltion, zoomable image of the select chart. Clicking on any chart will reveal information about each chart. Questions about this application, the collection, or the American Geographical Society Library at UW-Milwaukee should be directed to Check out other AGSL Discovery Applications and the AGSL Homepage.įirst select a chart series of interest from the dropdown menu, by default the application displays 'French Charts.' Pan and zoomĪround the map to locate charts in an area of interest. The project is an early use case of the OpenIndexMaps schema. This app will continue to be updated as the collection is digitized and processed.
Nautical charts are not only valuable in the water navigation information they provide, they also tend to provide information about city location, street layout, building locations, and other historic information.
The printed Nautical Chart collection at the American Geographical Society Library contains a variety of nautical charts from around the world. This application is a discovery aid for rare international nautical charts from the 19th and early 20th centuries.