On Fri, 18 Apr 2008 23:49:01 +1200, Wesley Parish <[EMAIL PROTECTED]> wrote: > On Friday 18 April 2008 12:36, Andrew Errington wrote: >> On Fri, April 18, 2008 06:15, Volker Kuhlmann wrote: >> > On Fri 18 Apr 2008 00:34:28 NZST +1200, Christopher Sawtell wrote: >> >> Many more using Google "gpl free raster to vector" >> > >> > Having the schematic in vector format is one thing. Do you also want > it >> > in a format suitable for a schematic editor? That's probably a > no-hoper. >> >> Might not be quite so bad. KiCad (for example) is a free, open-source >> schematic capture and PCB layout tool. I'm not sure of the > documentation >> for the schematic file format, but here's something: >> >> http://stawoo.com/dokuwiki/doku.php?id=ecld:kicad:schematic >> >> The tricky part would be getting the raster-to-vector software to >> recognise the difference between a bunch of lines joining the nodes and >> the lines that make up a component symbol. > > When the jgp is describing a 3d part, it gets hairy ... real hairy. >> >> IMHO it would be easier to print the original JPG and use KiCad to draw >> the schematic again from scratch. > > All I need, since the jpgs I'm talking about describe boats' lines, is to > get > the CAD I decide to use, to place the lines along the defined axes at the > defined points - eg, one set of lines I'm playing with, the Spray, has its > waterline and station points at 6 inch to 2 foot distances. It's > impossible > with the minimal amount of information a jpg file stores, to derive that > from > the jpg file itself - I would need to add it using the CAD program itself. > > What i want is to be able to turn the jpg into a set of lines in a CAD > file > that I can take and use as necessary.
I have a feeling that one of the SVG drawing tools has a "trace" mode where you can use a background jpg as a guide to creating an svg (ie vector) file. Being a boat I imagine a lot of curved lines. A good bezier tool might be useful. What I do not know is how easy it then is to convert an svg to a cad format to finish the job off.
