Latest Contributions by JohannesLindner

Go into the symbology pane and create a ring symbol.   Switch to the Structure tab and duplicate the symbol layer.   Switch back and change the attributes of the duplicated layer.     Repeat as needed.   ... View more

Code screenshots are hard to work with, because we can't easily test what you did. To post code as text:   Passing a simple list of coordinate tuples to the InsertCursor seems to be a shortcut that is only valid for singlepart features. Personally, I always create an arcpy.Geometry object and pass that.   test_fc = arcpy.management.CreateFeatureclass("memory", "test_fc", "POLYLINE", has_z="YES", spatial_reference=4326) coordinates = [ [-117.2000424, 34.055514, 1], [-117.2000788, 34.0592066, 2], [-117.1957315, 34.0592309, 5], [-117.1956951, 34.0556001, 2], ] with arcpy.da.InsertCursor(test_fc, ["SHAPE@"]) as cursor: points = [arcpy.Point(c[0], c[1], c[2]) for c in coordinates] line = arcpy.Polyline(arcpy.Array(points), has_z=True, spatial_reference=4326) cursor.insertRow([line])     multipart_coordinates = [ [coordinates[0], coordinates[1]], [coordinates[2], coordinates[3]], ] with arcpy.da.InsertCursor(test_fc, ["SHAPE@"]) as cursor: parts = arcpy.Array([ arcpy.Array([ arcpy.Point(p[0], p[1], p[2]) for p in part ]) for part in multipart_coordinates]) line = arcpy.Polyline(parts, has_z=True, spatial_reference=4326) cursor.insertRow([line])   ... View more

You're misunderstanding the When function. When() doesn't work on feature sets. It takes multiple booleans and objects and returns the object following the first true boolean. var x = 1 // this will return 25 return When(x == 0, "a", x == 1, 25, x == 2, "z", "default")   Other things: the dollar sign denotes global variables like $feature, $map, or $layer. You can't just put it in front of custom variables. In most programming languages, "=" is assignment ("var x = 3"). To test for equal, use "==" ("x == 3" -> true) FS is a FeatureSet, a collection of Seatures. You can't call a field on a FeatureSet, only on the separate Features. in your dictionary, you have a different name for the field in the fields declaration and the feature attributes.   To solve your problem, create an empty dictionary, then loop through the FeatureSet and Push the corrected values into the feature array: var port = "https://--------------.arcgis.com" var itemID = "---------------------------------" var layerID = 3 var fields = ['AGE'] var geo = False // Set up the FeatureSet with which to call: var FS = FeatureSetByPortalItem(Portal(port), itemID, layerID, fields, geo) // return the set of features to use within indicator: var newagesdictionary = { 'fields': [ { 'name': 'age_recalc', 'type': 'esriFieldTypeInteger'} ], 'geometryType':'', 'features':[] } for(var f in FS) { var new_age = When(f.AGE == 'BB', '0', f.AGE == 'NN', '0', f.AGE) var new_feature = {'attributes': {'age_recalc': Number(new_age)}} Push(newagesdictionary.features, new_feature) } var recalcagedict = FeatureSet(Text(newagesdictionary)); return recalcagedict   ... View more

code block: def get_factor(class_name): if class_name == "Alfalfa": return 100 if "Wheat" in class_name: return 80 return 0   DollarPerAcre = get_factor(!CLASS_NAME!) * !Acres! ... View more

Yeah, Python toolboxes have some weird quirks you have to work around. Personally, I've never gotten Parameter.altered to work. I always do the check myself by comparing the current parameter value to the previous value stored in a variable. But it doesn't work with a variable of the Tool class. Something to do with the internal conversion into C code, I guess. My workaround for this: Create an empty class in the toolbox file. Use this class to store variables from your tool classes: # Toolbox.pyt class ABC(): """This class is used to store tool variable.""" pass class FieldNames(object): def __init__(self): self.label = "FieldNames" self.description = "" self.canRunInBackground = False def getParameterInfo(self): fc = arcpy.Parameter( displayName="fc", name="fc", datatype="GPFeatureLayer", parameterType="Required", direction="Input") names = arcpy.Parameter( displayName="field names", name="fields", datatype="GPString", parameterType="Required", direction="Input" ) names.multiValue = True # set the variable. Doesn't work with self! ABC.fc = "" params = [fc,names] return params def isLicensed(self): return True def updateParameters(self, parameters): # instead of Parameter.altered, do the check yourself if ABC.fc != parameters[0].valueAsText: ABC.fc = parameters[0].valueAsText parameters[1].values = [field.name for field in arcpy.ListFields(ABC.fc)] def updateMessages(self, parameters): return def execute(self, parameters, messages): fc = parameters[0].valueAsText fields = parameters[1].valueAsText arcpy.AddMessage(f"fc: {fc}") arcpy.AddMessage(f"fields: {fields}") class Toolbox(object): def __init__(self): self.label = "test" self.alias = "test" self.tools = [FieldNames] ... View more

I don't know about the Javascript API, but in Arcade (which seems to share a big part of the feature set declaration with the JS API), you have to supply an integer (epoch, number of milliseconds since 1970-01-01) to the date field. This is how it would look in Arcade:   Number(Date(2019, 4, 25))   ... View more