Latest Contributions by JensBuchta

‎04-19-2018

If you pass a layer into a GeoProcessing - Tool, the GP-Tool honors the current selection set of that layer. Thus, you can create a loop, which makes use of SelectLayerByAttribute_management first and then executes CreateMobileMapPackage.

‎02-13-2018

Mara, I tried that setup and of course the symbology changes as expected in Pro. However, after creating a Mobile Map Package from it and loading the Map Package into ArcGIS Runtime, the symbol does not change. It just sticks to one symbol, regardless of the map's scale. Am I missing anything?

‎09-14-2017

Is the extented webmap specification (mobile map specification) public? I've never seen this, although I know about Web map specification overview | ArcGIS for Developers ...

‎09-14-2017

Hi Antti, thanks for your explanation. Well, basically it's all about storing the definition of a map to disc. Let's say, I created a map based on a few (not only one) Runtime-Geodatabases and gave the user the possibility to change the symbology during runtime. Then, it'll be all great to store that on disk. I can do this on my own, of course, by iterating through basemap, OperationalLayers and so on. But this will always be a file that: never is complete (I will always miss something) Will be a different file format if implemented by different people. So it'll be great to have an API for that. Some kind of a "Mobile Map Definition" that references data in contrast to the Mobile Map Package that contains all data.

‎09-14-2017

I wonder, if I've found a bug or if I'm just misunderstanding the Map.ToJson Method . As it is documented to return " A string that is the JSON value for the map.", I thought that the following code should result in a cloned map: // create the first map... var firstmap = new Map ( Basemap . CreateLightGrayCanvasVector ( ) ) ; var gdb = await Geodatabase . OpenAsync ( gdbPath ) ; foreach ( var table in gdb . GeodatabaseFeatureTables ) { await table . LoadAsync ( ) ; Map . OperationalLayers . Add ( new FeatureLayer ( table ) ) ; } Assert . IsTrue ( Map . IsLoaded ) // clone it via json.. var json = Map . ToJson ( ) ; var secondMap = Map . FromJson ( json ) ; ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ Unfortunately, the second map isn't even close to be like the first one. It doesn't know about basemaps, operationalLayers, Min/MaxScale, ..... Looking at the json string, I can see that basemap information is included, but nothing about the OperationalLayers exists: { "baseMap" : { "baseMapLayers" : [ { "layerType" : "VectorTileLayer" , "styleUrl" : " https://www.arcgis.com/sharing/rest/content/items/1e47168d181248e491541ffd5a91c0de/resources/styles/root.json " , "title" : "styles" , "type" : "VectorTileLayer" } , { "isReference" : true , "layerType" : "VectorTileLayer" , "styleUrl" : " https://www.arcgis.com/sharing/rest/content/items/b11b54e79acf4f9d8f6fbbdd5db97547/resources/styles/root.json " , "title" : "styles" , "type" : "VectorTileLayer" } ] , "title" : "Light Gray Canvas (Vector)" } , "spatialReference" : { "wkid" : 102100 , "latestWkid" : 3857 } , "version" : "2.8" , "authoringApp" : "RuntimeSDK" , "authoringAppVersion" : "100.1.0.1744" } ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ ‍ (The actual use case is not cloning the map, but to store the map to disk, so Map.clone() isn't an alternative here). Am I doing wrong?

‎09-07-2017

Thanks Morten for sharing your opinion, really appreciated. I think, I'll go for option 3. I should have explained my VM concern better: I have a 1:n relation of ViewModels, in this case, I have 1 MapViewModel and 20 DeviceViewModels. The MapView is bound to the MapViewModel, of course. The DeviceViewModel is responsible for getting the data, transforming it to a MapPoint and for that point's symbology. However, I do not want any reference to the map in the DeviceViewModel. So the MapViewModel tracks instances of DeviceViewModel and listens for changes on it. In case of option 2, where the renderer (and the device specific symbology) is defined in the MapViewModel, the MapViewModel has to respond to changes in DeviceViewModel not only to update the current position, but also to it's symbology. In case 1 and 3, symbology is defined at the Device-level and therefore, there is no need to communicate it between ViewModels. Thanks Jens

‎09-07-2017

I have to solve the following task in Runtime 100.1: - Display 20 moving points in the map (Refresh-Rate 1 sec) - The color of the point has to be changed during runtime (not based on the data) Generally, the GraphicsOverlay(s) is clearly the way to go, but I can see three approaches: 1. Create 20 GraphicsOverlay-Instances having exactly 1 Graphic item and assign a SimpleRenderer to the GraphicsOverlay. 2. Create 1 GraphicsOverlay-Instance, having 20 Graphic items and assign a UniqueValueRenderer to the GraphicsOverlay. 3. Create 1 GraphicsOverlay-Instance, having 20 Graphic items, each one of it with a symbol assigned, no Renderer at the GraphicsOverlay. I can see advantages / disadvantages in each of these options, that's why I'm asking for recommendations / experiences. Option 1 is pretty easy to handle, flexible (if the customer decides to want a totally different symbol for one of those 20 items), color can be assigned easily, but having 20 GraphicsOverlay-Instances feel like a lot of resources on the map. Option 2 seems to be a good option as well, but can get hard, if the symbol has to differ in more than just the color. Even the color itself has to be communicated to the MapViewModel. Option 3 might consume the least resources, but in general, assigning a renderer to the layer (GraphicsOverlay) is more efficient than assigning a symbol to the feature (Graphic). Any recommendations? Thanks!

‎08-31-2017

True, but the description says: " Gets or sets the location display settings used for display the device's current location. "

‎08-31-2017

The property MapView.LocationDisplay is documented as "Gets or sets...". However, it doesn't have a setter implementation.

‎08-08-2017

We have a GP Service that returns a FeatureSet. The GP Service can be used using arcgis.geoprocessing.import_toolbox() and creates an arcgis.features.FeatureSet. The arcgis.geoanalytics.summarize_data.reconstruct_tracks function requires an input layer (not a FeatureSet or a FeatureCollection). This is weird, as the corresponding REST endpoint does have support for FeatureCollections. So is it possible to make use the reconstruct_tracks with any kind of an in-memory feature structure? How? Thanks Jens

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Date Last Visited	‎11-11-2020 02:24 AM

My Ideas

Latest Contributions by JensBuchta

Re: Create Separate Mobile Map Package for each area

Re: Scale Dependent Symbology for FeatureLayers

Re: Map.ToJson()

Re: Map.ToJson()

Map.ToJson()

Re: GraphicsOverlay options - Any recommendations?

GraphicsOverlay options - Any recommendations?

Re: MapView.LocationDisplay has no setter (wrong documentation)

MapView.LocationDisplay has no setter (wrong documentation)

How to pass a FeatureSet to reconstruct_tracks(..)?