Hatching problem !!

Hi I’m quite new to librecad but getting on well until comes to hatching . Second time now I’ve drew an object comes to hatching and it comes up with failed due to gap at certain co-ordinates . I check around and can’t see any gaps . Also says invalid hatch area , please check that the entities chosen from one or more closed contours .


Can anyone help point me in right direction please

The contour requirement is quite strict: the entities must have their start/end points connected to form simple closed loops, so intersection points don't count. We are talking about adding the ability to hatch using intersection and closed areas, but help is needed on development.

You may also upload a minimum sample dxf file here for troubleshooting.

Nickm85 wrote

Hi I’m quite new to librecad but getting on well until comes to hatching . Second time now I’ve drew an object comes to hatching and it comes up with failed due to gap at certain co-ordinates . I check around and can’t see any gaps . Also says invalid hatch area , please check that the entities chosen from one or more closed contours .


Can anyone help point me in right direction please

Thanks for your message , any chance I could send it over to see if you can identify problem ?

You may attach a file to a message in this forum.

Just look for the attachment icon.

Nickm85 wrote

Thanks for your message , any chance I could send it over to see if you can identify problem ?

####valve_Body.dxf

okkkkk that didnt do it , ill try again

Hi,

In this modified dxf, I labelled some connection points which are invalid for hatch creation.

For a valid hatch contour, all connection points must be start/end points of both entities. In the labelled (small red circles)cases, not all lines starts/ends at the connection points.

valve_Body_labelled.dxf

how do i open what you've attached in librecad?

Right click on the link and "Save link as"

Nickm85 wrote

how do i open what you've attached in librecad?

All sorted thank you for your help

Sorry to be a pain me again

why wont it let me hatch top right of body ?
i cant see anything obvious.#######valve_Body.dxf

Following the labelled bad connection points, you should be able to find other bad ones.

A good connection point is a start/end point for both entities

Nickm85 wrote

Sorry to be a pain me again

why wont it let me hatch top right of body ?
i cant see anything obvious.#######valve_Body.dxf

Zoom in around the edge see if any gaps ?