Including float value in loop processing of Surface Volume tool using ArcMap ModelBuilder

Question

How do I use the Surface Volume tool in ArcMap via Model Builder, without using Python, to process a set of multiple float values in a loop, since an iterator takes integers when I implement a for loop?

See the attached image as indication.

enter image description here

Answer 1

An alternative method is to create a table and store your floats in that, 1 row per float value. Then use the Iterate Field Value iterator to drive your model. But I think @user2856 has the simplest solution.

• Olli: the issue in here is that for both options, iterate multivalue and iterate field value it is not possible connect it to the so called "plane height" - which is the field of the tool i'd like apply multiple values to
• Hornbydd: Try parsing the output of the iterator into a Double using the Calculate Value tool, then feed that into the volume tool
• Olli: Thanks, thats exactly what I was looking for! :)

Answer 2

You can use the Iterate Multivalue tool and add a list of floats:

enter image description here

Answer 3

Here is the code to loop the surface volume tool. You can hard-code the paths and run this in your favourite IDE. Or un-comment the arcpy.GetParameter....stuff and turn this into a Toolbox Tool.

try:
import sys, arcpy, traceback
arcpy.CheckOutExtension("3D")
arcpy.AddMessage( "Multi-Volumes for ArcGIS 10")
arcpy.AddMessage("Loop the 3D Analyist Surface Volume tools for a range of values...")
def GetValues(themessage, x):
 thevaluesatx = str(x)
 themessage = themessage.split("\n")
 thevalues = themessage[2].split(" ")
 for item in thevalues:
 thevalue = item.split("=")
 thevalue = thevalue[-1]
 thevaluesatx = thevaluesatx + "," + str(thevalue)
 thevaluesatx = thevaluesatx +"\n"
 arcpy.AddMessage(thevaluesatx)
 return thevaluesatx
My_txt = r"F:\FerndaleDirtPile20190729\ferndaledirtpipe20190729demUTMvolumes.csv"
My_surface= r"F:\FerndaleDirtPile20190729\ferndaledirtpipe20190729demUTM.tif"
direction = "ABOVE"
startingplane = 4
endingplane = 10.4
z = 1
graduations = 0.25
#My_surface= arcpy.GetParameterAsText(0)
#My_txt = arcpy.GetParameterAsText(1)
#direction = arcpy.GetParameterAsText(2)
#startingplane = float(arcpy.GetParameterAsText(3))
#z = float(arcpy.GetParameterAsText(4))
#graduations = float(arcpy.GetParameterAsText(5))
#endingplane = float(arcpy.GetParameterAsText(6))
direction = direction.upper()
f = open(My_txt,'a')
f.writelines(r"elevation, 2d_area, 3d_area, volume" + "\n")
arcpy.AddMessage("Please wait, this script is processing...")
if direction == "BELOW":
 arcpy.AddMessage("startingplane = " +str(startingplane))
 arcpy.AddMessage("endingplane = " +str(endingplane))
 
 while startingplane > endingplane:
 arcpy.AddMessage("Getting Results...")
 result = arcpy.SurfaceVolume_3d(My_surface, "", direction, startingplane)
 thevaluesatx = GetValues(result.getMessages(0), startingplane)
 f.writelines(thevaluesatx)
 
 startingplane = startingplane - graduations
if direction == "ABOVE":
 arcpy.AddMessage("Executing above...")
 x = startingplane
 while startingplane < endingplane:
 result = arcpy.SurfaceVolume_3d(My_surface, "", direction, startingplane, z)
 thevaluesatx = GetValues(result.getMessages(0), startingplane)
 print thevaluesatx
 f.writelines(thevaluesatx)
 
 startingplane = startingplane + graduations
f.close()
arcpy.AddMessage("Finished without errors!")
except arcpy.ExecuteError: 
 msgs = arcpy.GetMessages(2) 
 arcpy.AddError(msgs) 
 #If the error is with the script, or with python, find error and report it to the screen...
except:
 tb = sys.exc_info()[2]
 tbinfo = traceback.format_tb(tb)[0]
 pymsg = "PYTHON ERRORS:\nTraceback info:\n" + tbinfo + "\nError Info:\n" + str(sys.exc_info()[1])
 msgs = "ArcPy ERRORS:\n" + arcpy.GetMessages(2) + "\n"
 arcpy.AddError(pymsg)
 arcpy.AddError(msgs)

• user2856: The question specifically states "without using Python".