Latest Contributions by MatthewBaber

‎03-01-2018

I am using the date functions in arcade to calculate a date from data stored within a barcode. All works well in sandbox, but applying the attribute rule to a date field causes the error: ERROR 000358: Invalid expression Failed to execute (AddAttributeRule). The return of the expression is a date variable. The rule applies successfully to a text field and triggers and functions as expected. The expression itself validates successfully within the add attribute rule tool. The error only appears after attempting to run the tool against a date field. Here is a simplified expression: var inputdate = date(2000,01,01) return inputdate Attempting to apply this as an attribute rule to a date field will render the error mentioned above. Any ideas on how I could apply a like expression to a date field?

Re: Alabama Shapefile · ‎09-19-2017

The US Census Tiger/Line will have what you are looking for: TIGER/Line® - Geography - U.S. Census Bureau You may need to do some snipping to get just what you want as a large portion of these are national. You can download the shapefile for the states, query for Alabama and then use that as your cookie cutter on counties, subdivisions, roads, etc.

‎05-04-2016

Hi Claiborn, Symbolizing a point feature as "heat map" does not consume credits as it merely changes the visualization of the data using rather simple visual analysis. What I mean by this is there is no statistical formula dictating the range of values being considered for "hot" or "cold" areas. Performing the Hot Spot Analysis will consume credits; however, as it runs a statistical analysis on the backend that determines these values. A lot of people use the terms interchangeably, but a "heat map" and a "hot spot map" are two different things. I hope this answers your question! Matt

‎04-07-2016

My best guess here from reading this: ArcGIS Help 10.1 is that you are using the default option in the geoprocessing tool for distance. It states that when defaulted it uses the spatial reference of the feature on which the tool is running on and not the data frame of the map. This feature is probably using decimal degrees as you are right and those numbers look wonky. I could be wrong, but try specifying the distance in the tool. If you are running a python script to perform this operation then adjust the parameter from "distance" to "miles" otherwise change the parameter manually within the tool gui. The reason they are appended to the resulting attribute table is due to the majority of people wanting those fields in their results. If they are really bugging you - a python script could remove them if you have multiple features to edit or you can do it manually within the attribute tables themselves. I really hope this helps. Matt

‎03-10-2016

Really glad to hear it! Don't forget to mark Chris's answer as correct. This will help other people find the answer to this question in the future. Hope to see you around in the future. Matt

‎03-03-2016

HI Mathias, Yes, this is capable. Chris Donohue, GISP did a great job of outlining the workflow. That will get you what you are after. Best of luck. Matt

‎03-01-2016

Good news and bad news. Bad News: Since this is an academic thesis, you will need to obtain a world boundaries dataset that meets your institution's academic standards for accuracy. This could be more difficult than it appears as borders are controversial and highly disputed topics. I would check with your data stewards as your institution most likely already has an "accepted" world boundaries layer for academic use. Make sure this does not have the exclusive economic zones (EEZ) of countries that protrudes into the ocean. Good News: The workflow is simple! Using "select by location" you can perform spatial queries. First things first select all earthquakes that fall inside a nation's borders. This will select for all earthquakes inside a land border and therefore exclude all marine earthquakes. With these points selected right click on the layer, navigate to selection, and select create layer from selection. This will create a new layer with just the earthquakes on land. Next, use the spatial join tool to add the fields from the world boundaries to the earth quake points. This will add the countries name (assuming that field is existent in the world boundaries layer) to each earthquake point based on spatial location. Good luck on your thesis!

‎02-18-2016

Here is a blog on how to do this: Using basemaps without reference layers | ArcGIS Blog Includes directions specific to light gray canvas. Hope this helps.

‎02-10-2016

Hi Mele, There are literally hundreds of web app templates made by both Esri and others. You can find a gallery of featured templates here: http://www.arcgis.com/home/gallery.html#c=esri&t=apps&o=modified&f=configurable I am unsure what style/functionality you are looking for, but for projects like this I have always been fond of the Local Perspective app: Local Perspective It has that minimalist feel you are looking for. The functionality is that you click on the map or enter an address and locate the features near that area within a set buffer (1 mile, 2 mile, etc.) This could be something interesting if a user only wants to locate bus stops near their location. Otherwise you could just set it to display all features and only highlight those within the buffer. Really hope this helps.

‎02-10-2016

It doesn't appear that you can do this in the configuration options provided. In the html the side panel itself acts as an additional column within the display and its addition or subtraction affects the dimensions of the web map as there is no defined extent rather it conforms the window extent (which is optimal - I wouldn't change this by altering the code if you were considering it). If I were you - I would select the option to have the panel open upon opening the web map. This way the panel would most likely remain open during the entirety of the app's use unless a user has the motivation to manually close it. This would keep the map the same dimension throughout the process.

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Latest Contributions by MatthewBaber

Can an arcade attribute rule update a date field?

Re: Alabama Shapefile

Re: Does ArcGIS Online Heat Map Symbolization Cost Credits?

Re: Incomprehensible Shape_Length and Shape_Area Field Values

Re: Rookie on a mission: identify country from latitude/longitude conditionally

Re: Rookie on a mission: identify country from latitude/longitude conditionally

Re: Rookie on a mission: identify country from latitude/longitude conditionally

Re: Basemap without labels...no, really without labels

Re: AGOL Minimalist Web App Side Panel Format

Re: AGOL Minimalist Web App Side Panel Format

Mobile GIS

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