rhumb line placement

[Gidde]

Haven't been talking, but I have been listening to (and fascinated by) this whole discussion. For any GIMP users, I've spent the morning creating a rhumb diagram according to the rules above -- all of the lines are paths, so you can scale the image, crop it to your map, and then stroke all of the lines however you see fit. Here it is ...

//Edit: Added a .psd version to the zip.

[Bill Hooks]

Is there any chance that anyone's working on a Photoshop version of one of these things? I've been trying but I'm about ready to tear my hair out.

[Gidde]

Ask and ye shall receive Actually, I'm an idiot for not including a .psd version in the first place, since gimp will save to psd as easily as xcf. So I did so and added it to the zip in the previous post.

[Bill Hooks]

Heh, thanks Gidde. Ironically, after I complained I went back to it and made my own anyway. However, that does raise another question . . . how did you get the file size so small on a .psd? Even in grayscale, with smaller pixel dimensions than yours, mine is like 25 megs versus 6 megs for yours. I've checked Image Size and I'm at a loss to figure out what the difference is, except that the headers on your doc say "Gray/8#" whereas mine just say "Gray/8". Is that a clue?

[Gidde]

I'm not sure, honestly. It's probably because I made it in gimp compared to one created in PS. That's my best guess, anyhow.

[Coyotemax]

There are a number of factors that affect psd filesize when saving from photoshop. One is "save for compatibility" which is actually quite useless, since the "compatibility" is for one particular outdated format/program from what I remember, and not really necessary at all. Another thing that can impact filesize is the "save with preview", as that will composite the layers into a single layer for image previews and icon thumbnails.

[Bill Hooks]

Hmm, could be either of those. Unfortunately, "Save As" doesn't seem to give me an option to turn those features off so it's hard to say.

Getting back to maps, I slapped together a try-out inspired that Portuguese chart with tri-color rhumb lines:

[Midgardsormr]

You can change that behavior in the Preferences: Edit > Prefereneces… > File Handling

[Bill Hooks]

Thanks, midgardsormr, I'll play with that and see what I can do.

In the meantime, and I can't believe I didn't think of this before, I saved my tricolor grid as a .GIF with transparency, which hopefully will be of use to somebody:

[hohum]

How about a png. I also just found out that I cannot upload svg. Seems odd.



Wow! That is huge.