Can't read the updated content in tfrecord.

[ShqWW]

I have trouble in reading the updated content in tfrecord (v1.1). The key of the feature introduced in tf.Example Format is not update. Please update the website. It's important for decoding the tfrecord of v1.1.

[s-ettinger]

I'm not sure I fully understand the issue. Can you explain in some more detail what you are having trouble with?

[ShqWW]

OK. I use the function tf.io.parse_single_example(dataset, features_description) to read the data of tfrecord (e.g. uncompressed_tf_example_training_training_tfexample.tfrecord-00000-of-01000). And the data I use is in the version of v1.1. The features_description is set as the website tf.Example Format shows. Now I want to use the new features in v1.1 (e.g. lane connections & lane neighbor), but the features in the website tf.Example Format is not updated. I don't know the key and tensor dimensions of the new added features. So I can't read the new features from data of tfrecord in v1.1. Could you please update the website tf.Example Format to let me know the key and tensor dimension of the new added features(e.g. lane connections & lane neighbor)?

[s-ettinger]

For this release, the additional connectivity data is only available in the Scenario proto format. If there is demand we may include this data in the tf.Examples in a future version. Sorry if this was not clear from the documentation.

[ShqWW]

For this release, the additional connectivity data is only available in the Scenario proto format. If there is demand we may include this data in the tf.Examples in a future version. Sorry if this was not clear from the documentation.

OK, hope you can update tf.Examples soon.

[manolotis]

For this release, the additional connectivity data is only available in the Scenario proto format. If there is demand we may include this data in the tf.Examples in a future version. Sorry if this was not clear from the documentation.

Hi scott, any update regarding lane connectivity in the tf.Examples? I would be really convenient for my case.

[s-ettinger]

Hi Manuel, Thanks for the feedback. We don't have an immediate plan to add the connectivity information in the tf.Example format. We will consider this request for future releases. Which specific information would you be interested in using and how would you use it in tensor form? We will try to get a feel for the demand for this to prioritize.

[manolotis]

Hi Scott, Thank you for your quick reply. At the moment I don't have a exact specification of how I would use it in tensor form, but the specific information I would be interested in having directly available in the tf.Examples:

• For each map feature, which other map features are reachable. This is mainly targeted towards lanes.
• For each roadgraph sample, which road sample(s) is/are "next" (there may be multiple in case of a forking lane). This is relatively straightforward to calculate for samples of the same map feature, but not for the last sample.