Area collector empty (RevitPythonShell)

[g_sicre]

Hello,

I am working on a code to grab all built areas for each home in a single-family project, although the dictionary values where areas should be stored it is empty.

Could you tell me what am I doing wrong? I leave the code below.

Thank you.

# Obtención de areas por vivienda

areas = FilteredElementCollector(doc)\

        .OfCategory(BuiltInCategory.OST_Areas)

for i in areas:

    param_portal_id = i.LookupParameter('Portal').Id

    break

for i in areas:

    param_nombre_id = i.LookupParameter('Nombre').Id

    break

param_pro_portal = ParameterValueProvider(param_portal_id)

param_pro_nombre = ParameterValueProvider(param_nombre_id)

param_contains = FilterStringContains()

param_equals = FilterStringEquals()

filter_rule_jardin = FilterStringRule(param_pro_nombre, param_contains, 'Jard', False)

ft_sup_jardin = ElementParameterFilter(filter_rule_jardin)

filter_rule_terraza = FilterStringRule(param_pro_nombre, param_contains, 'Terraza', False)

ft_sup_terraza = ElementParameterFilter(filter_rule_terraza)

areas_viv_dict = {}     # Diccionario con todas las superficies construidas por vivienda con filtros

                        # (key = gate, value = areas list)

for i in range(1, 48😞

    filter_rule = FilterStringRule(param_pro_portal, param_contains, str(i), True)

    ft_sup = ElementParameterFilter(filter_rule)  

    areas_viv = areas\

                .WherePasses(ft_sup)\

                .WherePasses(ft_sup_jardin)\

                .WherePasses(ft_sup_terraza)\

                .ToElements()

    areas_viv_dict[i] = areas_viv

[jeremytammik]

Yes. I see the problem.

areas is a filtered element collector. Every time to add a call to WherePasses to it, a new filter is added. You are adding WherePasses filters to it in a loop, so the elements are being more and more strongly filtered, until (very rapidly) none are left that can pass the filters.

Solutions:

• Either instantiate a new filtered element collector for each pass through the loop,
• Or create a Boolean OR clause of the different WherePasses filters and apply the OR once only.

[g_sicre]

Hi Jeremy, 

thank you for the response. I have been trying both solutions but I am still stuck. However, doing some tests I have realized that something seems not to be working well with the FilterStringRule Class since for both bool value cases the result is always the same. I leave two images with the testing code.

[jeremytammik · Accepted solution]

Yes, indeed, you are perfectly correct.

This issue was recently discussed here in the forum and with the Revit development team:

https://forums.autodesk.com/t5/revit-api-forum/class-filterstringrule-parameter-casesensitive-has-no...

As explained in the other thread, and as you can obviously imagine for yourself, it is easy enough to work around.

Sorry for the confusion, however!