Cad Viewer has a problem on a specific layer

[melihpeker-pointr]

Hi everyone,

I had a DXF file to view and I observed an unusual behavior. When I tried to view that file as it is, the resulting image is like below (very very far away):

Then I realised that a specific layer causes that problem. When I tried to view that layer using AutoCAD, result is below:

However, when I use Cad Viewer to view that layer, I can't see anything. Moreover, when I disable that layer on the original DXF, I can view the rest of the file without any problem using Cad Viewer. Can you check what is wrong with that layer?

The problematic layer: Problem.zip

Thanks in advance!

[mbway]

this is a very common issue for some reason. Many CAD files that I deal with are drawn carelessly with lots of junk surrounding the actual content, often very far away like you have encountered.

I don't know how CAD applications determine what the view limits should be. I assume they must be in the dxf somewhere because opening the file in autocad shows:

The solution for ezdxf would be to set the view limits manually like in #451 or remove the junk entities by some criteria. For my own uses I have an algorithm which does this by looking for 'outlier' entities to remove.

For this particular case, if the view limits are correct when a single layer is excluded, you could draw the document without that layer, record the view limits then draw the whole document then restore the limits

[melihpeker-pointr]

How do you remove the 'outlier' entities? Do you first find the ROI in the drawing and then remove the rest?

[melihpeker-pointr]

Btw, I may found a solution for that. When I explode the blocks into poly lines and also explode the poly lines, I can manage to view the Problem.dxf as it is shown in AutoCAD.