Comment ajouter une légende à une couche dans ModelBuilder

NickPopow

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Chers tous !<\/P>

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J'essaie d'ajouter une légende à une couche dans modelbuilder. Les pages d'aide indiquent que je dois utiliser l'outil "Apply Symbology From Layer". J'ai enregistré ma couche de symbologie mais elle ne contient pas ma légende (d'après ce que j'ai compris, une légende ne peut être enregistrée que dans un fichier Map). Pourriez-vous m'expliquer comment faire cela correctement ?<\/P><\/BODY><\/HTML>

NaimeCelik

If I understood correctly, you want to add legend with model builder.Apply Symbology From Layer extracts Symbology from a layer ( which is a layer you prepared before) to another layer which does not have symbology. 

As far as I know , there is no tool to include legend in model builder but you could create a script "to add legend" in python and make a tool with that script. Then you can add it to your model. Here same code you can use to create layer from shp and add sybology.

import arcpy

symbologyLayer=r"C:\.....\sembology.lyr"  # if you want to assign same layer format all the time this can be a path to your symbology

LabelExpression="[Fieldyouwantolabelwith]"  #if you want label you can make it parameter if not you do not have to use this label parts

K_shp= arcpy.GetParameterAsText(0)  ### your shp file  you want to assign symbology

## those above will be your parameters

mxd = arcpy.mapping.MapDocument(r"C:\......\my.mxd")

#or mxd = arcpy.mapping.MapDocument("CURRENT")

df = arcpy.mapping.ListDataFrames(mxd)[0]

arcpy.MakeFeatureLayer_management(K_shp,"Layername")

lyr1= arcpy.mapping.Layer("Layername")

arcpy.ApplySymbologyFromLayer_management (lyr1, symbologyLayer)

lyr1.labelClasses[0].expression = LabelExpression

lyr1.showLabels = True

legend = arcpy.mapping.ListLayoutElements(mxd, "LEGEND_ELEMENT", "Legend")[0]

legend.autoAdd = True

arcpy.RefreshActiveView()

arcpy.mapping.AddLayer(df, lyr1, "BOTTOM")