topic Displaying Single Year of Data in Time Aware Map in ArcGIS Online Questions

Displaying Single Year of Data in Time Aware Map

CatherineWargo — Wed, 23 Jan 2019 18:20:26 GMT

Hi all

I made a time enabled map of data that is the yearly average and thanks to Bushtel Admin posting a workaround was able to edit the interval on the time slider widget so it has the same start time and end time allowing me to display a single year's data at a time. When I go to make the Time Aware app so I can insert my map into a StoryMap however the time slider widget defaults to showing an interval which means it's showing two years of data at a time.

Is there any way to make it so the time slider widget in the only displays a single year's data at a time?

Re: Displaying Single Year of Data in Time Aware Map

KellyHutchins — Wed, 23 Jan 2019 18:33:52 GMT

Is your Time Aware app public? If so can you share the link so we can take a look. The Time Aware app should read the settings specified in the layer/map.

Re: Displaying Single Year of Data in Time Aware Map

CatherineWargo — Wed, 23 Jan 2019 20:19:34 GMT

Hi Kelly

This is my time-enabled webmap. As you can see at the bottom the slider only shows the first year (1980).

When I use this map in the Time Aware app template this is the result.

Each year needs to be displayed independently, which there really doesn't seem to be an easy way to do.

Thank you.

Re: Displaying Single Year of Data in Time Aware Map

KellyHutchins — Wed, 23 Jan 2019 23:37:05 GMT

It looks like your web map is currently set to display the data in 4 year chunks. If you look at the time settings then expand the advanced settings section you can see that under Time Display it lists 4 years as the length of one time interval. If you modify this to a 1 year interval this is how it would look in the app:

http://www.arcgis.com/apps/TimeAware/index.html?appid=44f7f5ccd90e49f5aefa236681782603

Re: Displaying Single Year of Data in Time Aware Map

BushtelAdmin — Thu, 24 Jan 2019 01:49:25 GMT

Hi Catherine

I'm far from an expert and I don't think the template / slider widget currently does what you want.

Can you just use the original web map in your Story Map?

If sticking with the Time template, you may be able to add text to the Story Map to suggest the end user collapse the time interval on the slider, though very messy and unlikely to be followed.

You could try the time slider widget within a web mapping application, though the slider behaves similarly (the same?).

To get around the interval at the start of the slider, we have the start time set to the end time.

It removed the interval and still confusing to end users as when they hit the start / play button nothing happens

Hoping one day will be fixed!

Re: Displaying Single Year of Data in Time Aware Map

CatherineWargo — Mon, 28 Jan 2019 15:14:29 GMT

Thank you Kelly.

The problem is my maps are spaced in 4 year intervals- if you play the animation you'll see the map go blank for 1981, 1982, and 1983. I have data from 1979-2016, but the file containing all of the years is incredibly big thus slow to load; here's a map with all the years: http://arcg.is/1OeTmS

Placing this map into the Time Aware application presents the same issue as before: there is a one year interval on the time slider widget, thus the map shows data from 1979 and 1980 at the start. http://osugisci.maps.arcgis.com/apps/TimeAware/index.html?appid=30121fddb92347bc99d57398bbebd18a

Each year needs to be displayed independently because progressively displaying the data results in the maps not fully loading during the animation, thus the interval displayed needs to always equal 0. This does not appear to be possible in the Time Aware mapping application. Is there a way for the two thumbs on the slider to be locked together so to speak so that when the end time thumb is moved manually along the slider it does not create an interval? Specifying the thumbcount as 1 in the json changes the map to progressively display data by year, which again does not work with this data.

Re: Displaying Single Year of Data in Time Aware Map

CatherineWargo — Mon, 28 Jan 2019 19:57:48 GMT

If there is another way to include time enabled data in a Story Map I have not seen it, and if loaded into the Story Map as a map there is no time slider.

Re: Displaying Single Year of Data in Time Aware Map

BushtelAdmin — Tue, 29 Jan 2019 00:16:53 GMT

My bad ... you are correct.

Was confused with the different variations we have.

Re: Displaying Single Year of Data in Time Aware Map

CatherineWargo — Wed, 30 Jan 2019 13:26:10 GMT

No worries. Like you said there are many different variations possible.

Re: Displaying Single Year of Data in Time Aware Map

Centre_de_compétenceSITG — Thu, 21 Mar 2019 14:37:35 GMT

Hi, we had the same problem with the Time Aware template where it seems impossible to force the time slider to filter the data on a single year or "time unit" (tick mark). To resolve this behavior and force the filter to show the data "per year" only, we added some CSS in the template's configuration to hide the two draggable elements. This should do the trick!

In the Application's theme tabs, you can add some custom CSS at the end. Just add this code in the text input :

div.dijitSliderMoveable { display:none; }

Then you can choose to display only the start or the end date for our case.

(view in My Videos)

time slider‌ time aware app

Re: Displaying Single Year of Data in Time Aware Map

KellyHutchins — Thu, 21 Mar 2019 21:11:08 GMT

Nice use of custom css to workaround this issue!

Re: Displaying Single Year of Data in Time Aware Map

SteveCole — Thu, 21 Mar 2019 21:35:30 GMT

Since this is a bit of a necrobump, you may have moved on and found a solution so this won't matter. If, however, your purpose was to animate your results inside a Story Map and you still haven't found a solution, I'll offer another alternative that I've chosen to implement in my own Story Map...

I wanted to display the cumulative progression of logging on federal lands in Southern Oregon from 1940-2015. The dataset I put together has about 15,000 polygons and any time aware web app chokes on it (much like what you were experiencing). Ultimately, I decided to create an animated GIF of my information and then place that animated GIF into my Story Map.

Using Arcmap, I would display my data based on each year of interest and then export the layout data frame as a JPEG, making sure to add a label *ON TOP* of the data frame which would indicate the year of the progression. After generating all my individual JPEGs, I used one of the online tools like EZGIF to generate the animated GIF. Granted, the animated GIF I created isn't really a small file and take a moment to load but at least the results look as desired and intended.

Here's the Story Map Link. The animated GIF I've been describing is the 6th slide in the Story Map.

Steve

Re: Displaying Single Year of Data in Time Aware Map

MollyBurhans — Thu, 25 Apr 2019 06:05:14 GMT

This is an issue that we're having right now too. More than just the slider -- we can see that the data shown in the label is from both the start and end year, and to make things worse, it's different years for different features. Note, Alaska is showing the data for one year as a label while the US mainland polygon is labeled for another. I can toggle between these in the pop up but it's horribly inconvenient.

No slider moved, just the little arrow in the popup:

We plugged in The CSS from @Centre de compétence SITG helped a bit for a moment (thank you!).

But then -- this is where my mind gets blown about trying to fix this -- the entire field of "Orphanages" (displayed above) was erased and replaced with the next year value in the shapefile this is all pulling from. I have never seen anything like this.

But then other attributes, like leprosy colonies, were not hit by this error (yet...)

This is a bit buggy.

Re: Displaying Single Year of Data in Time Aware Map

Prediksi_CovidJatim — Fri, 24 Jul 2020 17:21:52 GMT

I know I'm late. Just happened to be here, having the same issue. I don't know how to make this work, but I can guess why yours act like that. That CSS is much like a visual hack rather than a solution. It only hides the handle. The functionality is still there and so it functions just like before when you have two slider handles. The difference is only that the handle is invisible because of the CSS. Depending on the visible handle, it may show a time span. With left handle, it will show time span when you slide to the left. With the right handle, it will show time span when you slide to the right. It will still show time span until you "snap" those two handles, which one of them is invisible.