How to create library part with thermal pad?

On Wed, 21 Sep 2011, Olin Lathrop wrote to us saying :

>One way or another, vertically oriented text needs to read down, not up.

>If you look at a bookshelf here in the US, the titles on the bindings all

>read down, for example.

A bookshelf is a very poor model to use as referent. Book spines have

the text that way round purely to be right-reading when placed on a

table face-up. For annotations in margins (which is MUCH closer to the

model we're looking for) the natural thing for a right-handed person is

to write upwards, not down.

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Rob Pearce                       http://www.bdt-home.demon.co.uk

The contents of     | All power corrupts, but we need electricity.

this message are    |

purely my opinion.  |

Don't believe a     |

word.               |

Olin Lathrop wrote:

 

One way or another, vertically oriented text needs to read down, not

up. If you look at a bookshelf here in the US, the titles on the

bindings all read down, for example.

 

>

I have watched with interest Olin's request for down reading verticle text.

Living in New Zealand, a country with British roots, it maybe understandable

that up reading text is normal. Due to our geograhic location and import /

export habits we are equally exposed to the standards of the US and so

become 'aware' of the many differences. That said, I have never come across

down reading text on a document  or plan.

So I searched some US companies for product pdfs to see if I could observe

this down reading text and found none that qualify as Olin describes for a

page that is to be read without rotating it.

I've read a lot of datasheets and all graphs have the Y-axis reading up.

The only time there was down reading  text, as the page was arrived at, was

a page that had been rotated landscape to portrate clockwise. This is not

normal if the documant is never expected to be bound into a book but happens

when this page would be the left page of an open book

Can soemone, a US resident I suspect, post some document links that show

down reading text is a common convention somewhere.

Thanks

Warren

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Robert Pearce wrote on Fri, 23 September 2011 12:55

A bookshelf is a very poor model to use as referent.

It was merely a example.  How is the text on the spine of german books

oriented?  The only german book I could find right here where I am now has

a wide enough spine that the text is horizontal, so no help.

In any case, the point is that Eagle shouldn't be assuming a particular

convention and let the user more easily rotate text as he likes.

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On 24.09.2011 00:51, Olin Lathrop wrote:

Robert Pearce wrote on Fri, 23 September 2011 12:55

>> A bookshelf is a very poor model to use as referent.

 

It was merely a example.  How is the text on the spine of german books

oriented?

German books usually have the text reading upwards.

In any case, the point is that Eagle shouldn't be assuming a particular

convention and let the user more easily rotate text as he likes.

Imagine a symbol with two pins, one extending to the right

and one to the left (i.e. rotated by 180 degrees). Would you

really want the pin and pad names of the left pin be written

upside down?

Klaus Schmidinger

--

_______________________________________________________________

Klaus Schmidinger                       Phone: +49-8635-6989-10

CadSoft Computer GmbH                   Fax:   +49-8635-6989-40

Pleidolfweg 15                          Email:   kls@cadsoft.de

D-84568 Pleiskirchen, Germany           URL:     www.cadsoft.de

_______________________________________________________________

On 23.09.2011 23:13, Warren Brayshaw wrote:

Olin Lathrop wrote:

 

>>

>> One way or another, vertically oriented text needs to read down, not

>> up. If you look at a bookshelf here in the US, the titles on the

>> bindings all read down, for example.

>>

>>

>

I have watched with interest Olin's request for down reading verticle text.

Living in New Zealand, a country with British roots, it maybe understandable

that up reading text is normal. Due to our geograhic location and import /

export habits we are equally exposed to the standards of the US and so

become 'aware' of the many differences. That said, I have never come across

down reading text on a document  or plan.

 

So I searched some US companies for product pdfs to see if I could observe

this down reading text and found none that qualify as Olin describes for a

page that is to be read without rotating it.

 

I've read a lot of datasheets and all graphs have the Y-axis reading up.

 

The only time there was down reading  text, as the page was arrived at, was

a page that had been rotated landscape to portrate clockwise. This is not

normal if the documant is never expected to be bound into a book but happens

when this page would be the left page of an open book

 

Can soemone, a US resident I suspect, post some document links that show

down reading text is a common convention somewhere.

That's a good point, Warren.

So before we continue this thread, I'd like Olin to come

forward with a concrete example of a diagram, data sheet

or whatever (preferably, of course, a schematic diagram)

that has vertical text reading downwards (or "from the left

side"). Maybe I was a little too hasty spending all the

time and effort in implementing this feature, while in

real life nobody actually uses it...

Klaus Schmidinger

--

_______________________________________________________________

Klaus Schmidinger                       Phone: +49-8635-6989-10

CadSoft Computer GmbH                   Fax:   +49-8635-6989-40

Pleidolfweg 15                          Email:   kls@cadsoft.de

D-84568 Pleiskirchen, Germany           URL:     www.cadsoft.de

_______________________________________________________________

Klaus Schmidinger wrote on Sat, 24 September 2011 04:59

German books usually have the text reading upwards.

That's what I thought but wasn't sure.  Here in the US the spine of books

when in a bookcase read down.  This means there definitely are different

regional conventions.

Again, the books are only one indication of the general preference.  The Y

axis label is a special case because the Y axis "flows" upwards and the

text is just going along with that.  Other than in such cases, upwards

vertical text just looks strange or wrong.

Quote:

Imagine a symbol with two pins, one extending to the right

and one to the left (i.e. rotated by 180 degrees). Would you

really want the pin and pad names of the left pin be written

upside down?

No I wouldn't, but this particular case is a lot easier because there are

only 4 possible pin orientations so it's easy to say up front what the text

orientation for each case should be.  In the two vertical cases I want the

text reading down, not up as now.  This should probably be based on a

global vertical text orientation switch.

What I was thinking about more was arbitrary graphical text created with

the TEXT command, like in the silkscreen layer coming from package

definitions.  Those end up in arbitrary locations and orientations anyway,

so I don't care how Eagle originally writes them as long as it's easy for

me to move around and reorient.  Note that easy doesn't include having to

set the spin flag.

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Klaus Schmidinger wrote:

On 24.09.2011 00:51, Olin Lathrop wrote:

>> Robert Pearce wrote on Fri, 23 September 2011 12:55

>>> A bookshelf is a very poor model to use as referent.

>>

>> It was merely a example.  How is the text on the spine of german

>> books oriented?

 

German books usually have the text reading upwards.

 

Book titling is irrelevant but the following from Wikipedia  completes our

education.

QUOTE

Spine titling.......

......Early books did not have titles on their spines; rather they were

shelved flat with their spines inward, and titles written with ink along

their fore edges. Modern books display their titles on their spines.

In languages with Chinese-influenced writing systems, the title is written

top-to-bottom, as is the language in general. In languages written

horizontally, conventions differ about the direction in which the title on

the spine is rotated:

• In the United States, the Commonwealth and in Scandinavia, titles are

usually written top-to-bottom on the spine. This means that when the book is

placed on a table with the front cover upwards, the title is correctly

oriented left-to-right on the spine. This practice is reflected in the

industry standards ANSI/NISO Z39.41[22] and ISO 6357.[23]

• In most of continental Europe, titles are conventionally printed

bottom-to-top on the spine so, when the books are placed vertically on

shelves, the title can be read by tilting the head to the left.[24]

END QUOTE

Latin America publications are not mentioned  but a quick search reveals

they mainly follow Europe.

Warren

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Am 23.09.2011 23:13, schrieb Warren Brayshaw:

Can soemone, a US resident I suspect, post some document links that show

down reading text is a common convention somewhere.

In my office and our institute's library, we have several hundreds of

English books, mainly from American publishers. Of this awful number of

books, not more than about a handful have their titles printed upwards.

Therefore, downward printing seems to be QUITE common in the US.

Even quite OLD German books have their title pointing downwards, and

only the 'younger' ones (from the 70s and later) seem to have adopted

upwards printing. I myself prefer upwards, of course, because I only

learned reading in the 70s (yes, of the LAST century, and NOT the one

before that)...

Andreas Weidner

Andreas Weidner wrote:

Am 23.09.2011 23:13, schrieb Warren Brayshaw:

>> Can soemone, a US resident I suspect, post some document links that

>> show down reading text is a common convention somewhere.

 

In my office and our institute's library, we have several hundreds of

English books, mainly from American publishers. Of this awful number

of books, not more than about a handful have their titles printed

upwards. Therefore, downward printing seems to be QUITE common in the

US.

 

Even quite OLD German books have their title pointing downwards, and

only the 'younger' ones (from the 70s and later) seem to have adopted

upwards printing. I myself prefer upwards, of course, because I only

learned reading in the 70s (yes, of the LAST century, and NOT the one

before that)...

 

Andreas Weidner

The request is for documentation and CAD drawings practices  and not the

spines of books, which has derailed the discussion. Interesting though.

Warren

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warrenbrayshaw wrote on Mon, 26 September 2011 16:48

The request is for documentation and CAD drawings practices  and not

the spines of books,

As I said before, down-reading vertical text is a strong convention here.

The book spines are merely a way to illustrate this and point out that

there really is a difference.

You're not going to find a standard document, but the fact that's how it's

done here should be good enough.  I don't know what fraction of Eagle users

are in the US, but that's got to be a significant number.

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