An exception occurs when a layer has the same name

[smile2k]

Hi @DomCR , I hope you are doing well.
I'm currently reading a DXF file using your library. An exception occurred when reading some of my sample files.
Here is a snippet of my sample.

The layer "RESC_ART" appears multiple times. When the library continues reading and attempts to add the next layer, it throws a "duplicate key 'RESC_ART'" error, as shown below.

My question is: Should the later layers overwrite the previous ones, or is there a better solution?

I'm not very familiar with this field, so I appreciate your patience as I try to understand things.
Thank you!

[DomCR]

Hi @smile2k,

The exception is not triggered during when it reads the Insert, is triggered in the TABLES section reading the layers, check the file and look for:

0
LAYER

The name of the layers is stored under the code 2:

2
layername

If you have multiple layers with the same name, the dxf is badly formed, you can manually delete one or change the name.

Hope this helps.

[smile2k]

Hi @DomCR,

I used AutoCAD 2022 to open this file, and it seems to display the layer in red (which likely indicates that it's using the latest layer). So, should we throw an exception when a duplicate key is encountered, or should we overwrite the existing one?

[DomCR]

It should throw an exception because one of the Layers is deleted without the user knowing it, which it means that the dxf has a wrong format.

I can manage to work around this, there is the Failsafe flag in the configuration which could be used to override the last entry with the same name in case of a duplicate notifying the user at the same time, I'll open an issue to take a look at this one.

Could you provide the file or an equivalent one to test it?
Out of curiosity which software or library created this dxf allowing 2 equal layers?

[smile2k]

Thank you for your enthusiastic support.
I hope the Failsafe flag handling will be available soon.
I will send the sample file to you separately via email.