Harry Halpin wrote:
> For some reason, while the rest of my exhibit works, Timeline fails. I just
> want a timeline of when people entered and
> exited their main company (in this example, Xerox PARC) and I encode this as
> dates.
>
> Seem to have just ran into an error message that I don't understand. I'm
> copying the Presidents.html file and JSON pretty closely in my work, just
> modifying them to fit an exhibit about inventors of computer technology.
>
> Here's the message:
> I get this error message: "Caught Exception: Error adding section
> {select Worked At view} to history
> Details: TypeError:this._dom.timeline has no properties
>
> Strange. It *appears* to have properties to me. My HTML is here:
> ---
> <div ex:role="exhibit-view"
> ex:viewClass="Exhibit.TimelineView"
> ex:label="Timeline"
> ex:proxy=".index"
> ex:start=".start"
> ex:leave=".leave"
> ex:marker=".institution"
> ex:bubbleWidth="320"
> ex:bubbleHeight="200"
> ></div>
> -----
>
> HTML: http://vis.duke.edu/Research/interface/inventors.html
> JSON: http://vis.duke.edu/Research/interface/inventors.js
> JSON: http://vis.duke.edu/Research/interface/schema.js
>
> Any ideas what's going on? Since the inventors don't have a strict linear
> order like Presidents, I use proxy "index" instead of "president"...
>
In your case, there's no need for ex:proxy at all since the properties
start and leave are properties of what you're plotting. So, just remove
ex:proxy=".index".
> Also, secondary question - for this historical work, we usually don't have
> exact dates? Is it possible to use timeline with
> just years, and in that case how does it impact schema.js and do I just put
> integers in as years?
>
Exhibit uses ISO 8601 as the date/time format, so something like "1973"
would do.
Cheers,
David
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