1

I am using ArcMap 10.5, but help pages I am referring are the same as in 10.7.

I am trying to make a GP tool within Python toolbox with kind of selection input: user selects features in ArcMap interactively.

I was reading Using the interactive feature and record input controls and found that it's possible for GP tool to have such kind of parameter. Quote: "The interactive feature input control gives you two methods for inputting features to a tool—either by clicking on a map display or by providing an existing dataset."

OK, so I checked what parameter types I can create here: Defining parameter data types in a Python toolbox and it seems that Feature Set (GPFeatureRecordSetLayer) is what I am looking for as description says: "Interactive features that draw the features when the tool is run.".

Here is my magic tool, but I do not see any way to "enter features interactively":

class AttachTool(object):
    def __init__(self):
        """Define the tool (tool name is the name of the class)."""
        self.label = "Add attachments"
        self.description = "Adds the same file as attachment to multiple selected features"
        self.canRunInBackground = False

    def isLicensed(self):
        """Set whether tool is licensed to execute."""
        return True

    def getParameterInfo(self):
        """Define parameter definitions"""

        paramInputFeatures = arcpy.Parameter(
            displayName="Input Features",
            name="in_feature_set",
            datatype="GPFeatureRecordSetLayer", # Interactive features that draw the features when the tool is run
            parameterType="Required",
            direction="Input",
            multiValue = True)

        paramInputFile = arcpy.Parameter(
            displayName="File to attach",
            name="in_file",
            datatype="DEFile",
            parameterType="Required",
            direction="Input")

        return [paramInputFeatures, paramInputFile]

    def updateParameters(self, parameters):
        """Modify the values and properties of parameters before internal
        validation is performed.  This method is called whenever a parameter
        has been changed."""
        return

    def updateMessages(self, parameters):
        """Modify the messages created by internal validation for each tool
        parameter.  This method is called after internal validation."""
        return

    def execute(self, parameters, messages):
        """The source code of the tool."""
        arcpy.AddMessage('Just pretending to do something...')
        return

Input field looks like this and I don't see how I should select features... enter image description here

PS. Copy on GeoNet: https://community.esri.com/thread/243774-arcpyparameter-how-to-create-the-interactive-feature-input-control

2

The ArcGIS Pro topic for Python toolbox parameters looks to have a bit more information. Find the section: About Feature and Record Sets The information you need is:

The symbology and schema (attributes and geometry type) can be set for the Feature Set and Record Set control by setting the parameter's value property to a feature class, table, or layer file (.lyrx).

By providing the parameter value to an item with both schema and symbology (ie. a LYR file in ArcMap), the tool will open allowing you to draw the particular features. eg.

param0.value = os.path.join(os.path.dirname(__file__),'Fire_Station.lyrx')
2
  • Yes, there is more info here. It seems that I misunderstand what "interactive input" means. It is not the selection of existing features, but features that user adds (I suppose) in edit session?.. – Remigijus Pankevičius Nov 15 '19 at 13:47
  • 1
    You can use interactively drawn features to perform a selection. The interactive draw of a polygon can be passed to Select by Location to do this. – KHibma Nov 15 '19 at 14:48

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.