Use name filter to limit allowable selection

[clement]

@MClare

Is there a way to limit object selection by a name filter in rhinoscript

@MClare, yes, below is an example which limits selection to objects having their object name start with “0.”

import rhinoscriptsyntax as rs
    
def DoSomething():
    # limit selection to points with a custom name filter
    ids = rs.GetObjects("Select", 1, False, False, False, custom_filter=my_filter)
    if not ids: return
    
    for id in ids:
        print rs.ObjectName(id)
    
def my_filter(rhino_object, geometry, component_index):
    # only allow objects with a name starting with "0."
    if rhino_object.Attributes.Name.startswith("0."):
        return True
    return False
    
if __name__=="__main__":
    DoSomething()

@MClare

Does the custom_filter have to have three arguments (and only 3)

I think yes. It is based on the CustomGeometryFilter method which has 3 parameters. You can however use as many global variables in your custom_filter function as you like and define them before using rs.GetObjects in your main routine.

@MClare

I don’t know how to create proper indented blocks

Just format your python code like this:

```python
print "hello world"
```

c.