<![CDATA[detect the selection of an object]]>Hi all
In a tooldata, is it possible to detect when the user selects an object in the tree structure?

]]>http://developers.maxon.net/forum/topic/11369/detect-the-selection-of-an-objectRSS for NodeSat, 10 Oct 2026 16:46:38 GMTSat, 23 Feb 2019 09:38:16 GMT60<![CDATA[Reply to detect the selection of an object on Thu, 20 Feb 2020 07:08:12 GMT]]>@C4DS
Although a solution has not been given (as I wish to do), explanations have been provided. I have therefore considered it resolved.
For IRL reasons, I could not do so. I will be able to get back to it, and if I find THE solution, I will post it 😉

]]>http://developers.maxon.net/forum/post/61619http://developers.maxon.net/forum/post/61619Thu, 20 Feb 2020 07:08:12 GMT<![CDATA[Reply to detect the selection of an object on Sun, 16 Feb 2020 18:20:49 GMT]]>@Passion3D
As this topic seems to be "solved" could the solution be provided, or discussed. It might be helpful to others. And I am definitely interested to hearing a solution in more details.

]]>http://developers.maxon.net/forum/post/61536http://developers.maxon.net/forum/post/61536Sun, 16 Feb 2020 18:20:49 GMT<![CDATA[Reply to detect the selection of an object on Tue, 26 Feb 2019 07:08:09 GMT]]>Then, why don't you simply add a LinkListGui or a Link field? I had a similar plugin written, which allows me to build a list for snapping candidates. That works pretty well.

]]>http://developers.maxon.net/forum/post/57461http://developers.maxon.net/forum/post/57461Tue, 26 Feb 2019 07:08:09 GMT<![CDATA[Reply to detect the selection of an object on Tue, 26 Feb 2019 05:18:19 GMT]]>ViewportSelect.PickObject(), this is what I use to select an object in the 3D View.

What I'm trying to do seems complex and unreliable.
I'll try to find another solution.
As I said, when the scene is complex, it is difficult to reach a particular object, especially if it is small.

]]>http://developers.maxon.net/forum/post/57460http://developers.maxon.net/forum/post/57460Tue, 26 Feb 2019 05:18:19 GMT<![CDATA[Reply to detect the selection of an object on Mon, 25 Feb 2019 21:49:02 GMT]]>@passion3d said in detect the selection of an object:

It's from R19 only. It will remove OnFloor compatibility from R13 to R18 😞

If I'm not mistaken, in prior versions it must have been ViewportSelect.PickObject().

C4DS approach sounds a bit more elegant, yet hacky and thus probably error-prone. I'd go for the more robust solution. Even if that means a lack in comfort.

]]>http://developers.maxon.net/forum/post/57458http://developers.maxon.net/forum/post/57458Mon, 25 Feb 2019 21:49:02 GMT<![CDATA[Reply to detect the selection of an object on Mon, 25 Feb 2019 20:49:48 GMT]]>I have been in need of something similar as well. And if I remember correctly it has been discussed a few years ago.
Reason is that a ToolData or DescriptionToolData might need to initialize some stuff depending the currently active object. When the user selects a different object in the ObjectManager, the ToolData might need to reinitialize some stuff.

The solution proposed in the past was to use a MessageData and listen to EVMSG_CHANGE to check if a different object has been selected using the object's "unique" id and then trigger the ToolData by sending a SpecialEvent ... or something.

It is quite a complex implementation that seems to work, but probably is very error prone.
I wish we would have had some kind of message telling the active object selection was changed (from inside the ToolData), not via-via. And definitely not using such a hacky and complex solution.
It has been a while, but I seem to remember that the whole use of the object's unique id was rather flawed as the id didn't exactly seem to be that unique after all.

Anyway, I am still hoping for a nice solution to detect when user changes the current active object. But it seems to not be possible after all.

]]>http://developers.maxon.net/forum/post/57455http://developers.maxon.net/forum/post/57455Mon, 25 Feb 2019 20:49:48 GMT<![CDATA[Reply to detect the selection of an object on Mon, 25 Feb 2019 19:49:52 GMT]]>It's from R19 only. It will remove OnFloor compatibility from R13 to R18 😞

]]>http://developers.maxon.net/forum/post/57453http://developers.maxon.net/forum/post/57453Mon, 25 Feb 2019 19:49:52 GMT<![CDATA[Reply to detect the selection of an object on Mon, 25 Feb 2019 19:46:12 GMT]]>A PickSession() lets you retrieve objects. The transfer tool uses something similar.
Although, it may not be possible to directly click in the object tree with a tool enabled (and there are no tools in C4D that I know of), but you could add a link to your tool that allows you to pick an object that should be considered for placing.
Take a look at the transfer tool - maybe that's what you're looking for.

]]>http://developers.maxon.net/forum/post/57452http://developers.maxon.net/forum/post/57452Mon, 25 Feb 2019 19:46:12 GMT<![CDATA[Reply to detect the selection of an object on Mon, 25 Feb 2019 19:41:43 GMT]]>PickSession?

]]>http://developers.maxon.net/forum/post/57451http://developers.maxon.net/forum/post/57451Mon, 25 Feb 2019 19:41:43 GMT<![CDATA[Reply to detect the selection of an object on Mon, 25 Feb 2019 19:38:38 GMT]]>That's a PickSession Candidate, right?

]]>http://developers.maxon.net/forum/post/57450http://developers.maxon.net/forum/post/57450Mon, 25 Feb 2019 19:38:38 GMT<![CDATA[Reply to detect the selection of an object on Mon, 25 Feb 2019 19:22:09 GMT]]>Hi Andreas
It's an improvement I want to make to OnFloor.
Currently, the tool is activated and then click on each object in the 3D view to place it on the ground.
In the case of a complex scene, it can be difficult to find an object in the 3D view. So I would like to include the possibility of clicking on the object in the scene tree structure.

]]>http://developers.maxon.net/forum/post/57449http://developers.maxon.net/forum/post/57449Mon, 25 Feb 2019 19:22:09 GMT<![CDATA[Reply to detect the selection of an object on Mon, 25 Feb 2019 18:09:48 GMT]]>Hi,

no, that's not possible. Can you give us a use-case, where this is needed for in a ToolData? Maybe we can come up with something else.

Cheers,
Andreas

]]>http://developers.maxon.net/forum/post/57444http://developers.maxon.net/forum/post/57444Mon, 25 Feb 2019 18:09:48 GMT