arcpy charts, setting the class break values?

PeterMilenkovic — Tue, 30 Mar 2021 05:39:12 GMT

Hi All

I have a script that loops though a dataframe, runs a query and exports each subset to a feature table. Then i use arcpy.chart to generate calendar heat charts. I have set the classification method to 'natural breaks' but that gives be classes with heaps of decimals (see attached). Is there anyway to round the class breaks? I am exporting them to svg's so I guess I could do some sort of replace, but just wondering if there is an easier method?

Re: arcpy charts, setting the class break values?

PeterMilenkovic — Wed, 31 Mar 2021 01:31:47 GMT

Ok, I played around with it and the best solution could come up with was to:

Read the svg
Find the legend values by searching child nodes that contain '≤'
Creating a list of legend values
Creating a new list to round the legend values
Modifying the original list (step 3) to re-insert a thousand separator ','
String replace on the svg file

doc = xml.dom.minidom.parse(r"O:\users\pmilenkovic\PythonScripts\NotebookSandbox" +os.sep + loc +'d_daily.svg') name = doc.getElementsByTagName('text') leg_lab=[] dec_pos = [] for tx in name: if re.search('≤',str(tx.childNodes)): tx.normalize() leg_lab.append(str(tx.firstChild.data).replace(',','').replace('≤','').strip()) leg_lab_replace = [] for ll in leg_lab: leg_lab_replace.append(round(float(ll))) leg_lab_to_replace = [] for ll in leg_lab: if ll.find('.') == 4: leg_lab_to_replace.append(ll[:1]+','+ll[1:]) elif ll.find('.') == 5: leg_lab_to_replace.append(ll[:2]+','+ll[2:]) else: leg_lab_to_replace.append(ll) #input file fin = open(r"O:\users\pmilenkovic\PythonScripts\NotebookSandbox" +os.sep + loc +'d_daily.svg', "rt") #output file to write the result to data = fin.read() for ll, nll in zip(leg_lab_to_replace,leg_lab_replace): data = data.replace(str(ll),str(nll)) fin = open(r"O:\users\pmilenkovic\PythonScripts\NotebookSandbox" +os.sep + loc +'d_daily.svg', "wt") fin.write(data) #close input and output files fin.close()

topic arcpy charts, setting the class break values? in Python Questions

arcpy charts, setting the class break values?

Re: arcpy charts, setting the class break values?