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Hatching ANSI vs ISO

m_kingdon
Advisor

Hatching ANSI vs ISO

m_kingdon
Advisor
Advisor

Hi all,

I have never fully understood hatching and why some hatches looks different in other drawings even if the scales are the same.  I have done some reading about the Measurement command and how it switches some settings in CAD between Imperial and Metric.  I have also read that ANSI is an Imperial hatch and ISO is Metric.

 

My question is: as we are a metric office, should we avoid using the ANSI hatch?

We use ANSI31 and ANSI32 fairly often. 

Alternatively, can I set my Measurement to 0 without effecting anything other than the behaviour of hatch scales?

Mike Kingdon
Civil 3D Zealot

EESignature

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cadffm
Consultant
Consultant

Measurement controle two things:

Hatch creating

From which file Acad should import the pattern definition.

Metric 1 = AcadIso.pat

Imperial 0 Acad.pat

Pattern with the same name and the pattern looks same, but with another definition - 25.4x bigger/smaller 

 

LINETYPES

The same thing with acad.lin for Imperial and AcadIso.lin for metric linetypes.

 

Don't mix definitions from both in one DWG.. 

 

There is one difference of Linetypes and Hatch pattern:

You can redefine Linetypes in a file be re-loading the linetype from a *.lin

Linetypes are part of your dwg and acad imports the definition from a lin only if a linetype with that name you need is not defined in the dwg.

 

HatchPattern a not like "Styles", hatch- Pattern are calculated one the fly and one time created - not linked to a definition.

(You can have 5 Hatch in one DWG with the same name, same settings, but looking differently, not good but possible).

 

And read about Measureinit too if unknown, it controle the measurement value for NEW files.

Sebastian

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michaelkBRE6E
Participant
Participant

thanks, but your response doesn't really answer my question.  Also, I did not mention line styles in my question.

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m_kingdon
Advisor
Advisor

Sorry, wrong account.

As an metric office, should we only be using the ISO hatch?

Mike Kingdon
Civil 3D Zealot

EESignature

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cadffm
Consultant
Consultant

You asked about linetypes with this question:

"can I set my Measurement to 0 without effecting anything other than the behaviour of hatch scales?"

The answer is No, because it also controle the source file for linetype definitions.

Or i understand your question not the way your words say. If you ask for hatches only: It is only for the hatch defintion, as i said the definition is the same for the standard pattern, except the distances/size of the patter.

For you the only difference is the scalefactor.

 

Your question about ANSI and ISO (also, it is a Question also for Linetypes :cara_guiñando_un_ojo: :cara_de_decepción:

You can use all pattern, ANSI or ISO or *whatever*,

They only thing is that the ISO definition fits good to each other ISO defintion in the question of scaling!

 

Sebastian

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