Section plane does not cut blocks

[Anonymous]

Hi everyone,

I'm a student approaching for my very first time to autocad 2017. I have a house with some blocks inside (like the sofa, the table or the kitchen).

My problem is: when I create a section plane, he cuts all the walls and the floor as he should, but it keeps the blocks visible... I attach an image of the problem.

Thanks in advance

Lorenzo

P.S. I can't simply hide them because I may need to hide only the half of an object.

[Alfred.NESWADBA]

Hi,

>> when I create a section plane, he cuts all the walls and the floor as he should, but it keeps the blocks visible

from the help >>>here<<<:

Section plane objects create sections of 3D solids, surfaces, meshes, and point clouds.

So at the first look it works as designed. However, I tried the command _SECTIONPLANE as well as _SECTIONPLANETOBLOCK as well as _LIVESECTION and all are working well with a block (that block contains a 3D-Solid).

So if you can upload the drawing we can look into the block and see which types of objects are in your block-definitions.

Alternatives - depending on what is needed exactly - can be:

• In layouts: all based on _VIEWBASE (>>>details<<<)

- alfred -

[Anonymous]

Hi Alfred,

I send you my drawing. Hope that he can be useful.

thanks

Lorenzo

[Alfred.NESWADBA]

Hi,

I looked first to the window block ==> it contains a subblock and within that 268 objects of type "Polyface Mesh"

I looked then to the table block ==> it contains if 2 objects of type "Polyface Mesh"

(I did not look to other objects then)

The object type "Polyface Mesh" is not supported for command _SECTIONPLANE (as listed above), so you have to convert your block-definitions to hold objects like 3D-solid or geometry types which are supported for that command.

- alfred -

[Anonymous]

Ok, so what should I do? I did not understand properly...

[Alfred.NESWADBA · Accepted solution]

Hi,

>> Ok, so what should I do

You will have to convert or redesign your blocks so they are only containing objects of a type listed under supported objects in the help.

E.g. for your table: select it, then right-click ==> block editor ==> within the block editor either find ways to convert the objects or recreated the geometry of the table.

To convert a Polyface Mesh to a Mesh you can use command _CONVTOMESH.

So open every block-definition in block-editor, convert the Polyface Meshes to Meshes, close block-editor with saving the block, ready.

Just to mention: I had to copy your modelspace content to a new drawing and work in that new dwg as some conversions resulted in invisible objects.

Please find attached a drawing where I converted some blocks 😉

HTH, - alfred -

[Anonymous]

Thanks for your precious help, Alfred. Tomorrow morning i'll try 😉
Lorenzo from Rome