How to store an Entity between sessions?
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I would like to be able to store an entity or a reference to an entity between sessions, and retrieve the entity quickly (i.e. without iterating every entity in the model). Is there a way? Entity.entityID doesn't last between sessions, and placing entities in attribute dictionaries isn't working for me.
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Using Attributes is about the only way - what isn't working about them?
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@jim said:
Using Attributes is about the only way - what isn't working about them?
m = Sketchup.active_model #<Sketchup;;Model;0xdc02f80> m.set_attribute("mydict", "mykey", m.selection[0]) #<Sketchup;;Face;0xe286438> m.get_attribute("mydict", "mykey") nil -
You have to give the entity an enduring attribute like a 'guid' based on say
Time.now.to_f+rand...
As it's a group you can iterate all definitions using .group? and break once you have a match... -
Hmm I suppose since I will be grouping the Entity, I could iterate all the groups in the model to find it... less intense than iterating entities, but still not ideal...
This seems like it must be a common problem. Plugins will inevitably have special geometry that they want to tag and keep track of. Some of the messier models I've worked with have been >100MB and iterating model.entities isn't acceptable.
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@tig said:
You have to give the entity an enduring attribute like a 'guid' based on say
Time.now.to_f+rand...
As it's a group you can iterate all definitions using .group? and break once you have a match...Yea, I've done this in the past... number of groups should be WAY less than number of entities. Sure there's no other way?
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@draftomatic said:
@tig said:
You have to give the entity an enduring attribute like a 'guid' based on say
Time.now.to_f+rand...
As it's a group you can iterate all definitions using .group? and break once you have a match...Yea, I've done this in the past... number of groups should be WAY less than number of entities. Sure there's no other way?
That's the way I do it, when I have to...
If you have to save a particular 'thing' across sessions it must have some sort of enduring 'handle' - so if you think about it... no matter what that is you'll have to sort through lists of 'similar things' to find it... be it 'naming', 'layer', 'guid-attribute', 'material' or whatever... you'll need to 'sift' the model's entities when you reopen it... -
Thanks TIG
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