Tool to trace and measure line length

[k5083]

Some years ago when I was doing a little designing, I remember I had a freeware image viewer/analyzer that had a tool where you could trace a series of line segments on an image you were viewing and the viewer would tell you the total length, in inches or mm or whatever, of the series of segments you were tracing. So you could trace around the mating edges of fuselage sections, around bulkheads etc. to verify whether they were the same length and actually had a chance of matching up when you built them. This was several hard disc failures ago and I've lost track of the program. Might have been irfanview but maybe not. If anyone knows what I'm talking about or where to find a similar utility or PS plugin, I'd appreciate a pointer to it.

Thanks,

August

[mbauer]

Raster design used to do something simular to this. Would also trace the lines for you, only problem was when lines crossed, it didn't know which one to follow...

Mike

[k5083]

Answered my own question sort of. Finally found, not the tool I used to use, but it does the job. For those interested, it's ImageJ. ImageJ

Among many other things, this program will let you trace lines, line segments, polygons, or freehand outlines over an image and give you a variety of measurements, including total length or perimeter.

This is a good tool for things such as creating bulkheads for Fiddlers Green models. If you have a fuselage cross section, say from a reference book, that's the right shape but the wrong size, you can just scale it until the measured perimeter equals the edge of the fuselage tube you want to stuff it into.

August

[sgoti]

...And cross-platform, too.

Yay!