Bitmap import into schematic

"Joerg" <invalid@invalid.invalid> wrote in message

news:iq1e4i$9su$1@cheetah.cadsoft.de...

This is not at all urgent but maybe someone has an idea. Yesterday I had

a situation that happens a lot. I received a schematic that was in need

of some minor redesign. Only in PDF, like usual. So this time I wanted

to see if Eagle can do the redlines by importing a black&white bitmap

snapshot out of the PDF file. Then I wanted to draw the extra stuff in

red.

 

Long story short in a graphics program the bitmap looked crisp and

clear. After importing it into an Eagle schematics window it was all

blurry like I had ten beers and with a bright yellow background. Useless

for any redline work, so I did it as usual with a red pen and my

scanner. Why is that rendering so badly in Eagle?

After reading all your stuff here it appears like you dont have two color

bitmap.

Here is a windows guide how to get that:

-open the pdf (or whatever doc)

-resize it to requested size

-with window in focus, press ALT+PrintScrn keys on keyboard (window grab to

paste buffer)

-run mspaint (std windows app)

-Paste the image here (press CTRL+v)

-The whole image is now selected and you may drag the interesting part to

upper left corner

-crop image by finding the right and bottom image handles and drag them in

-(you may want to do a temporary save here now)

-Goto Image->Atributes and pick b/w (this may distort edges if the image of

the pfd was jpg compressed)

-clean it up

-Save it as monochrome bitmap

Morten Leikvoll wrote:

"Joerg" <invalid@invalid.invalid> wrote in message

news:iq1e4i$9su$1@cheetah.cadsoft.de...

>> This is not at all urgent but maybe someone has an idea. Yesterday I had

>> a situation that happens a lot. I received a schematic that was in need

>> of some minor redesign. Only in PDF, like usual. So this time I wanted

>> to see if Eagle can do the redlines by importing a black&white bitmap

>> snapshot out of the PDF file. Then I wanted to draw the extra stuff in

>> red.

>>

>> Long story short in a graphics program the bitmap looked crisp and

>> clear. After importing it into an Eagle schematics window it was all

>> blurry like I had ten beers and with a bright yellow background. Useless

>> for any redline work, so I did it as usual with a red pen and my

>> scanner. Why is that rendering so badly in Eagle?

 

After reading all your stuff here it appears like you dont have two color

bitmap.

Here is a windows guide how to get that:

-open the pdf (or whatever doc)

-resize it to requested size

-with window in focus, press ALT+PrintScrn keys on keyboard (window grab to

paste buffer)

-run mspaint (std windows app)

-Paste the image here (press CTRL+v)

-The whole image is now selected and you may drag the interesting part to

upper left corner

-crop image by finding the right and bottom image handles and drag them in

-(you may want to do a temporary save here now)

-Goto Image->Atributes and pick b/w (this may distort edges if the image of

the pfd was jpg compressed)

-clean it up

-Save it as monochrome bitmap

 

That's actually what I had done initially to reduce the colors to 16.

There were other reviewers before me so a little color left in there

would have been nice. Eagle ate it but the results were not good.

So now I reduced it to stricly B/W, no color, no gray scale. Still not

very good. According to several folks in this thread it seems Eagle just

isn't made to do this. No problem, I just thought it would have been

nice if it could do such reviewer edits.

Oh well, next time it's going to have to be directly done in MS-Paint

then. In case anyone is interested here, you need to load a 2nd instance

of MS-Paint and have the symbols on that one. Like this:

http://www.eham.net/articles/7255?ehamsid=8433m8oku8evctrhqgokh61pg7

One way to generate the symbols would be to place all the ones you'll

need on a blank Eagle schematic and then export that as a graphics file,

in a format that MS-Paint can read.

--

Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.

Use another domain or send PM.

"Joerg" <invalid@invalid.invalid> wrote in message

news:iqegru$583$1@cheetah.cadsoft.de...

That's actually what I had done initially to reduce the colors to 16.

There were other reviewers before me so a little color left in there

would have been nice. Eagle ate it but the results were not good.

Maybe you could post the final bitmap (raw) before importing, so we can have

a look at that?

"Joerg" <invalid@invalid.invalid> wrote in message

news:iqegru$583$1@cheetah.cadsoft.de...

That's actually what I had done initially to reduce the colors to 16.

There were other reviewers before me so a little color left in there

would have been nice. Eagle ate it but the results were not good.

Maybe you could post the final bitmap (raw) before importing, so we can have

a look at that?