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Question Example to create a semantic tag

Discussion in 'Unity MARS' started by ikdd88, Jul 20, 2020.

  1. ikdd88

    ikdd88

    Joined:
    Apr 6, 2020
    Posts:
    6
    Hi,

    Is it possible to have an example of how to create a new semantic tag? I would like to have a semantic tag for tables for example and it's not clear from the development guide how to achieve this.

    Thank you.
     
  2. jmunozarUTech

    jmunozarUTech

    Unity Technologies

    Joined:
    Jun 1, 2020
    Posts:
    297
    Hey There,

    To add a semantic tag condition to your proxies just clock on the "Add MARS Component" button and add the tag, then create just assign a name to it.

    Screen Shot 2020-07-21 at 1.48.02 PM.png
     
  3. ikdd88

    ikdd88

    Joined:
    Apr 6, 2020
    Posts:
    6
    Then I would need to create my own trait that defines a table and use the semantic tag with the trait name?
    I was using the height above floor condition + plane size condition to filter tables in the scene and wanted to then assign a semantic tag to those.
     
  4. ikdd88

    ikdd88

    Joined:
    Apr 6, 2020
    Posts:
    6
    I was trying to create a multicondition so that I have both the HeightAboveFloorCondition and PlaneSizeCondition satisfied and then I would want to create a semantic tag in that case. Would this be the way to do this? And if so, I'm having trouble understanding how those MARS given conditions can be used as subconditions. I was looking into the FlatFloorCondition as an example but didn't manage to translate this into using HeightAboveFloorCondition and PlaneSizeCondition as subconditions. I would appreciate some help.
     
  5. leweyg_unity

    leweyg_unity

    Unity Technologies

    Joined:
    Jan 29, 2020
    Posts:
    38
    To define your own data objects and semantics, you can use "SynthesizedSemanticTag" to create a new data object and associated a tag with it. If you know the data ID of the item you want to add a trait to, you can also use "AddOrUpdateTrait" which comes with "IProvidesTraits"
     
  6. unity_andrewm

    unity_andrewm

    Unity Technologies

    Joined:
    Jun 25, 2015
    Posts:
    73
    Hi Cdorik,

    We're have a more elegant way to add semantic tags via proxies on the way. In the mean time - if you're looking to essentially define a proxy once to use across multiple objects, I would recommend you put your proxy definition within a prefab.