### Author Topic: Hatch problem  (Read 4216 times)

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#### 42

• Bull Frog
• Posts: 483
##### Hatch problem
« on: February 17, 2004, 09:56:57 AM »
Have a look at this drawing of a hatch problem. The one on the left is correct. What has happened to the righthand one?
http://theswamp.org/lilly.pond/42/hatch.dwg
It seems to be broken, the effect is the same for all hatch pattens.
Alastair Mallett Autodesk Certified Professional
Technical Director
Hunters South Architects

#### daron

• Guest
##### Hatch problem
« Reply #1 on: February 17, 2004, 10:01:01 AM »
I don't know, but using match fixed it.

#### 42

• Bull Frog
• Posts: 483
##### Hatch problem
« Reply #2 on: February 17, 2004, 10:04:10 AM »
Unfortunately using match does not fix it on my machine, although I match the left one into the right one.
Alastair Mallett Autodesk Certified Professional
Technical Director
Hunters South Architects

#### Craig

• Guest
##### Hatch problem
« Reply #3 on: February 17, 2004, 10:07:37 AM »
One thing I noticed about the two is the following
One on the left
(70 . 0) (71 . 0) (91 . 4) (92 . 5) (93 . 4) (72 . 1)
One on the right
(70 . 0) (71 . 1) (91 . 1) (92 . 1) (93 . 4) (72 . 1)

71 - Associativity flag (associative = 1; non-associative = 0)
91 - Number of boundary paths (loops)
92 - Boundary path type flag (bit coded):0 = Default; 1 = External; 2 = Polyline;4 = Derived; 8 = Textbox; 16 = Outermost
--------------------------
72 - Edge type (only if boundary is not a polyline):1 = Line; 2 = Circular arc; 3 = Elliptic arc; 4 = Spline
93 - Number of edges in this boundary path

When I redid the same hatch on my machine they came in identical
(70 . 0) (71 . 1) (91 . 1) (92 . 1) (93 . 4) (72 . 1)
(70 . 0) (71 . 1) (91 . 1) (92 . 1) (93 . 4) (72 . 1)

Hope this helps some

#### 42

• Bull Frog
• Posts: 483
##### Hatch problem
« Reply #4 on: February 17, 2004, 10:29:25 AM »
That’s beautiful Craig, but I do not have a Scooby Doo what it means. Well yes I know that it refers to the hatch construction, but beyond that no clue. The hatch works fine in other drawings.
Alastair Mallett Autodesk Certified Professional
Technical Director
Hunters South Architects

#### daron

• Guest
##### Hatch problem
« Reply #5 on: February 17, 2004, 10:33:05 AM »
audit the drawing?

#### 42

• Bull Frog
• Posts: 483
##### Hatch problem
« Reply #6 on: February 17, 2004, 10:33:28 AM »
Yep done that
Alastair Mallett Autodesk Certified Professional
Technical Director
Hunters South Architects

#### daron

• Guest
##### Hatch problem
« Reply #7 on: February 17, 2004, 10:35:52 AM »
wblock it to another name and rename?

Lastly, start over?

#### 42

• Bull Frog
• Posts: 483
##### Hatch problem
« Reply #8 on: February 17, 2004, 10:44:45 AM »
Done that but no dice on effect on the hatch.
Not an option 3.5MB drawing.
Alastair Mallett Autodesk Certified Professional
Technical Director
Hunters South Architects

#### CAB

• Global Moderator
• Seagull
• Posts: 10365
##### Hatch problem
« Reply #9 on: February 17, 2004, 10:47:49 AM »
I noticed that the one on the right is associative.
Your Scale factor does not work for me. Maybe my
arconc hatch is different but when I edit the hatch on the right
change the scale to 20 it redraws as correct.

CAB
I've reached the age where the happy hour is a nap. (°¿°)
Windows 10 core i7 4790k 4Ghz 32GB GTX 970
Please support this web site.

#### daron

• Guest
##### Hatch problem
« Reply #10 on: February 17, 2004, 10:54:19 AM »
Have you tried deleting the bad hatch, redrawing its boundary, then re-hatching it as non-associative. It seems to be associative when listing it, but doen't appear to be associative when selecting it.

#### Craig

• Guest
##### Hatch problem
« Reply #11 on: February 17, 2004, 10:57:42 AM »
Well I found something else that might be your problem. Did you create the rectangles differently? Notice the difference between the two LWPOLYLINE's?
The left one
((-1 . <Entity name: 40a0be30>) (0 . "LWPOLYLINE") (330 . <Entity name: 40a86c10>)

The right one
((-1 . <Entity name: 40a0be20>) (0 . "LWPOLYLINE") (5 . "9AC") (102 . "{ACAD_REACTORS") (330 . <Entity name: 40a0be28>)
---------------------------
102 - Start of application-defined group "{application_name". For example, "{ACAD_REACTORS" indicates the start of the AutoCAD persistent reactors group. This group exists only if persistent reactors have been attached to this object.

#### 42

• Bull Frog
• Posts: 483
##### Hatch problem
« Reply #12 on: February 17, 2004, 10:58:10 AM »
I rehatched both areas in the original drawing using associative and non-associative hatching, it makes no differance.
Daron, this also makes on differance. I can draw a new hatch boundary and either hatch it by point or object. What is frustrating is that hatching done earlier is fine.
Alastair Mallett Autodesk Certified Professional
Technical Director
Hunters South Architects

#### 42

• Bull Frog
• Posts: 483
##### Hatch problem
« Reply #13 on: February 17, 2004, 11:03:00 AM »
Craig. I can copy a rectangle that containes correct hatch, rehatch the second rectangle and obtain the incorrect hatch.
Alastair Mallett Autodesk Certified Professional
Technical Director
Hunters South Architects

#### daron

• Guest
##### Hatch problem
« Reply #14 on: February 17, 2004, 11:08:51 AM »
It seems that you have something setting reactors in your drawing, as Craig pointed out. I had your drawing open and was in here. I went in to cad and noticed it had frozen up. Has anybody else experienced this?

List your rectangles. Are they containing any reactors? Are they both unassociative?

#### CAB

• Global Moderator
• Seagull
• Posts: 10365
##### Hatch problem
« Reply #15 on: February 17, 2004, 11:14:12 AM »
Yes, I went to move the right hatch & ACAD locked up.
I've reached the age where the happy hour is a nap. (°¿°)
Windows 10 core i7 4790k 4Ghz 32GB GTX 970
Please support this web site.

#### daron

• Guest
##### Hatch problem
« Reply #16 on: February 17, 2004, 11:33:16 AM »
42, what sort of reactors do you have set up in vba or lisp? Do you have many, a few or any that you know of?

#### 42

• Bull Frog
• Posts: 483
##### Hatch problem
« Reply #17 on: February 17, 2004, 11:57:35 AM »
Eh??? Sorry but you are now talking in tongues.
Alastair Mallett Autodesk Certified Professional
Technical Director
Hunters South Architects

#### daron

• Guest
##### Hatch problem
« Reply #18 on: February 17, 2004, 12:04:20 PM »
But it's your drawing that seems to be talking in tongues. Anybody in your office capable of conjuring these sort of things up?

#### 42

• Bull Frog
• Posts: 483
##### Hatch problem
« Reply #19 on: February 17, 2004, 12:05:30 PM »
No......well yes but he is on leave.
Alastair Mallett Autodesk Certified Professional
Technical Director
Hunters South Architects

#### daron

• Guest
##### Hatch problem
« Reply #20 on: February 17, 2004, 12:18:21 PM »
Isn't that the way? I feel for you.

• Guest
##### Hatch problem
« Reply #21 on: February 17, 2004, 01:04:16 PM »
Daron, associative hatches reference the boundary objects - and vice versa. That the boundary has a 102 code reactor thingie only means that it's being referenced by an associative hatch. It's normal.

For the problem at hand, check out TS60223 for drawing complex patterns at high coordinate values.

#### daron

• Guest
##### Hatch problem
« Reply #22 on: February 17, 2004, 01:24:04 PM »
Hm. I didn't think about that. The hatch didn't look like it was associative even though it claimed to be. Agh! I even looked into this one:
Quote
Set the SNAPBASE variable to a coordinate close to the coordinates for the hatch boundary

and it worked, but I failed to mention it, because I thought the results would turn out the same as match props did.

#### 42

• Bull Frog
• Posts: 483
##### Hatch problem
« Reply #23 on: February 17, 2004, 04:28:09 PM »
At home now. I will try the snap base tomorrow. If it works then thanks, if not........keep on scratching.
Alastair Mallett Autodesk Certified Professional
Technical Director
Hunters South Architects

#### Spageddie

• Guest
##### Hatch problem
« Reply #24 on: February 17, 2004, 06:33:03 PM »
Question
Might it have something to do with being too far from the origin ?

#### CarlB

• Guest
##### Hatch problem
« Reply #25 on: February 17, 2004, 06:42:06 PM »
Yes, it's the "too far from the origin" problem.  Surveyors/civil types have experienced that problem since Day 1 of AutoCAD. You can fix the "broken" hatch using HATCHEDIT>>apply after setting your snapbase or UCS origin close to the hatch.

#### 42

• Bull Frog
• Posts: 483
##### Hatch problem
« Reply #26 on: February 18, 2004, 04:15:35 AM »
Gentlemen. Well that certainly seems to fixed the problem. I moved the ucs to the area of the drawing where all of my work is. I now recollect that some time ago there was a post concerning offsetting a rectangles distant from 0,0 with a similar solution. Again thanks.
Alastair Mallett Autodesk Certified Professional
Technical Director
Hunters South Architects

#### diarmuid

• Bull Frog
• Posts: 416
##### Hatch problem
« Reply #27 on: February 24, 2004, 03:38:29 AM »
concrete hatching like that will go crazy when the origin point of the hatch has been altered or moved to a different position.

what i'm saying is:

when a block wall was hatched a large distance from 0,0 it used to go crazy.

if you moved the block wall close to 0,0 it was o.k. (but you had to re-hatch)

now...if you moved (or it has been moved) the snapbase point (the mountain instead of mohamad) a large ditance from the block you got the same problem.

is it possible that the origin point has moved?

possible quick solution...type snapbase. selcet a location close to the are to be hatched and try and hatch. see if that corrects the problem.

hth

Diarmuid
If you want to win something run the 100m, if you want to experience something run a marathon

#### drizzt

• Swamp Rat
• Posts: 957
##### Re: Hatch problem
« Reply #28 on: May 10, 2006, 12:04:40 PM »
Wow! I don't know how old this thread is, but it sure helped my problem in LDD. This has been a thorn in my side for a long time!

#### diarmuid

• Bull Frog
• Posts: 416
##### Re: Hatch problem
« Reply #29 on: May 16, 2006, 06:28:53 AM »
whoa........hold on everyone.  dont panic.

the hatch probelm is a simple one.  the hatch pattern base is proably set at a point that is VERY far a wasy for the area bieng hatched.

type: snapbase.  it it doesn't say 0,0,0 then set it to 0,0,0

if the problem persists, then tyoe snapbase again, and select a point very close or on the boundary of the area you want to fill.  try it again and it should be o.k.

hth

Diarmuid
If you want to win something run the 100m, if you want to experience something run a marathon

#### drizzt

• Swamp Rat
• Posts: 957
##### Re: Hatch problem
« Reply #30 on: May 18, 2006, 12:17:56 PM »
In effect, isn't that the same thing as setting the ucs closer to the hatch object?