topic Re: Custom Spanish Roof Tile Hatch in AutoCAD Forum

Custom Spanish Roof Tile Hatch

caoelizabeth1 — Wed, 08 Mar 2023 06:49:17 GMT

Hi, I tried creating a *.pat for a Spanish roof tile but it's coming out like a random of discontinued line after it starts repeating the hatch pattern. I can create a block to get the pattern I'm looking for but a *.pat would be better and not bog down the file / slow when drafting. The attached image: the right hatch is the correct version and the left hatch of the image is the incorrect version that I'm getting. I've attached the *.pat file as well Any thoughts? Thanks

Re: Custom Spanish Roof Tile Hatch

paullimapa — Wed, 08 Mar 2023 07:09:19 GMT

see which you prefer

found these here

Re: Custom Spanish Roof Tile Hatch

caoelizabeth1 — Wed, 08 Mar 2023 12:00:46 GMT

Thank you for providing these hatches, but I'm looking for the specific pattern (single, single, double tile and altering at each column)

Re: Custom Spanish Roof Tile Hatch

Kent1Cooper — Wed, 08 Mar 2023 14:24:23 GMT

That looks to me like a case of X- and Y-offset values being figured relative to zero rotation, instead of relative to the direction of each lineset separately for itself. It might be possible to troubleshoot if you can post the .DWG file that I assume is the source of your "correct" image.

And I kind of wonder whether it could be simplified somewhat without losing too much of the "curvature" appearance. You have linesets having offset values like this:

....,1161.742879,0.00082279,....

with the X offset being more than 1,400,000 times the Y offset, and/or ending with this kind of pair:

....,0.04657701,-1808.6968728

with the pen up for close to 39,000 times the distance that it's down, both of which I would think could be simplified to something a little less extreme, with some slight changes in direction angles.

EDIT: I managed to get the pattern to work in a limited area and was able to make my own basis. BUT it raises other questions, just within the area where it is close to working right:

I notice that the "under" tiles are at different levels in relation to the rest of the pattern [the red ones are higher than the yellow ones]. And the "over" tiles are not consistent, either -- the green one is higher than those I left white, and the magenta one should be doubled like the cyan ones, with the second one there presumably above the magenta one, meaning the close-to-vertical lines going upward from there should be shorter. Etc., etc. Maybe that's part of the reason the .PAT file has 235 lines....

Also, at a scale of one, these are the "cycle" dimensions in drawing units:

Is that a real size in meters, perhaps? If not, how do you decide on a Hatch pattern scale?

Can you make a .DWG version that is consistent about all this in the way that you want?

Re: Custom Spanish Roof Tile Hatch

hugha — Wed, 08 Mar 2023 14:27:28 GMT

Please try the attached pattern as edited within HatchKit to straighten up some repetition distances.

Novel, but simple task.

hope this helps,

Hugh Adamson

www.hatchkit.com.au

Re: Custom Spanish Roof Tile Hatch

caoelizabeth1 — Wed, 08 Mar 2023 20:11:45 GMT

I've attached the DWG for review.

It kind of works at the origin but once the pattern repeats, it freaks out and doesn't know what to do with itself.

That is correct, they have different "level" because the double tile shifts things up. Perhaps trying to keep them on the same level even when having the double tile will help simplify the PAT file of having less than 235 lines.

Re: Custom Spanish Roof Tile Hatch

hugha — Wed, 08 Mar 2023 22:29:21 GMT

This version has 78 elements achieved by levelling the tiles slightly differently.

The pattern file is now effectively one third as large as before but the appearance is very similar.

hth,

Hugh Adamson

www.hatchkit.com.au

Re: Custom Spanish Roof Tile Hatch

caoelizabeth1 — Wed, 08 Mar 2023 23:28:23 GMT

Closet to what I'm trying to do. Is there a way to connect the endpoints of the lines? When zoom in, they don't connect, see attached image. Thank you!

Re: Custom Spanish Roof Tile Hatch

Kent1Cooper — Thu, 09 Mar 2023 00:11:36 GMT

@caoelizabeth1 wrote:

....When zoom in, they don't connect ....

Is it better if you set the Hatch's origin somewhere within it or very close to it? That kind of "wander" is usually a matter of getting farther from the origin.

Re: Custom Spanish Roof Tile Hatch

hugha — Thu, 09 Mar 2023 03:22:54 GMT

There is an unusual problem uncovered by this example.
Thank you for presenting it, and my apologies for not testing adequately before uploading either pattern.

Hugh Adamson

hatchkit.com.au

Re: Custom Spanish Roof Tile Hatch

caoelizabeth1 — Thu, 09 Mar 2023 03:42:34 GMT

Re: Custom Spanish Roof Tile Hatch

caoelizabeth1 — Thu, 09 Mar 2023 03:41:02 GMT

It is better closer to the origin but within one unit away you can notice the disconnect in the lines, so if I were to use this hatch, 20'-40' range, it's quite noticeable unfortunately. Quite amazing to cut it down to fewer than 80lines though compare to the 235 lines

Re: Custom Spanish Roof Tile Hatch

caoelizabeth1 — Thu, 09 Mar 2023 03:42:00 GMT

Not at all, I rather have what you have provided than the initial issue I'm running into; It's a better option. I appreciate the time you are taking out to help me. Many thanks!