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→Troubleshooting
Places of Ancestor Events that do not appear as pins on the map are probably missing the correct GPS longitude and/or longitude. Determining which Places are missing and need correction can be finicky work. This is most easily done with custom filters... but it takes multiple stages.
The objective is to find the Places of Events of Ancestors of the [[Gramps_Glossary#home_person|Home Person]]. That's 4 stages of filtering.
You can set up a [[Example_filters|multi-stage of filter]] that show only Places for Ancestors & configure the Places Category view to show the Longitude & Latitude columns. This will tell you how many of Ancestor related Places will be omitted from being plotted on the map.
For this multi-stage custom filter, create the following Cascade of custom filters:
# Create a Person custom Filter "ActivePerson" using the "Active Person" add-on rule has many more uses. <br>''New incredibly useful add-on Person General Rule. It replaces PersonID based rules and makes Custom Filters MUCH more dynamicrule. Thanks Paul!''
# Person custom Filter "ActiveAncestors" using [[Gramps_{{Version manual}}_Wiki_Manual_-_Filters#Ancestral_filters|Ancestral filter]] "Ancestors of <filter> match"; filter=ActivePerson <br>''You might add a 2nd rule to include the Active Person and then select the "[[Gramps_{{Version manual}}_Wiki_Manual_-_Filters#Define_Filter_dialog#multiple_rule_options|At least one rule must apply]]" option. Otherwise, the Events & Places of the Active Person might be omitted''
# Events custom Filter "ActiveAncestorEvents" using [[Gramps_{{Version manual}}_Wiki_Manual_-_Filters#Events_Category_2|Events General filter]] "Events of persons matching the <person filter>"; person filter=ActiveAncestors
# Places custom Filter "ActiveAncestorEventPlaces" using [[Gramps_{{Version manual}}_Wiki_Manual_-_Filters#Places_Category_2|Places General filter]] "Places of events matching the <event filter>"; event filter=ActiveAncestorEvents
{{man tip| 1=Making Filters that are more reusable|2=You could have started with built this using a Person custom filter using set to the built-in Default Person (a.k.a. [[Gramps_Glossary#home_person|Home Person]]) General rule. That would more directly correspond to this add-on Geography view mode. <br><br>But a custom Filter called using the "Active Person" add-on Person General rule is much more flexible. It stays synchronized to the Person being edited instead of continually resetting the Home Person designation or editting a rule that had been preset to a specific PersonID.<br><br>'' Download and use the incredibly useful add-on Person General Rule that was created in early 2020. It replaces the awkward PersonID based rules and makes Custom Filters MUCH more dynamic. Thanks Paul!''}}
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