SVG files for schematic - scaling

parts help
1

Hi, I’ve got a SVG file for a schematic for a part I’m working on, the file is created manually for sanity as Inkscape was annoying me - however inscape will load it fine.

the Fritzing part editor will also load it, but its miniscule, I’ve had a look in the template but cannot see the correct incantation to add to adjust the scaling - if zooming in its all there just fine, just small.

what do I need to add to get it right? the items in the file are all spaced in inches, the text point sizes are set etc just… on screen too small to be usable

2

now have the scaling sorted… however now all the graphics do not show - the image works fine in inkscape or a browser, but guessing there needs to be some specific grouping to get things to work - have tried to copy the template but nothing. file as it is attached
PB06-B RGB Schematic

3

Your svg is missing the viewbox. Easiest solution is to use Randy’s fritzing schematic extension for Inkscape available here:

like this (starting from your svg)

capture
capture1427×834 124 KB

note there is no viewbox just the height and width. Fritzing requires the viewbox.

capture1
capture11434×836 118 KB

delete your schematic and start the extension set the size and label

capture2
capture21297×755 132 KB

then specify the number of connections on each side

capture3
capture31291×819 122 KB

Set the pin labels

capture4
capture41291×754 117 KB

then the next set of labels

capture5
capture51433×832 122 KB

then press finished and it creates the schematic with the correct pin spacing colors svg scale and viewbox (circled in green.) Because it doesn’t do spaces in pins I made it over size and now need to ungroup schematic and move the pins

capture6
capture61430×832 133 KB

resize the image and regroup it and save as plain svg and we are done.

capture7
capture71432×836 123 KB

And this svg should work for you

fixed-schematic

(right click on it and select save image as to get the svg!)

Peter

4

Excellent, manually added the viewbox and now it works… trying to avoid Inkscape, partly because its way easier to manage size placements manually more than a mouse and because I’ve had some odd behaviour with copy & paste a few times - these files are trivial to do by hand once you have the baseline working.

presumably the viewbox needed for the PCB and breadboard view also - speaking of which is the breadboard view actually needed? the component in question is not breadboard compatible due to the pin size & spacing. could probably fake something but its not a view I use

serious thumbs up :slight_smile:

5

It is possible to suppress breadboard view, but usually not worth it. Your best bet is to copy the pcb svg in to breadboard (which will provide the necessary connector definitions to keep Fritzing happy) then just ignore breadboard. These two tutorial apply to current versions of Fritzing if you haven’t seen them. I don’t think I covered suppressing breadboard, but Old_grey may have.

Peter

6

sorted cheers, did actually make a breakout board for these in EasyEDA (as it had the components defined, though with an error making them hard to use) probably not too hard to define it.

one of lifes problems, no matter what software you use there is always at least one component missing :slight_smile:

will keep fiddling, for example the size of this is wrong (too large) for what it is, was just a first bash at sizing it

cheers