How can I measure travel distance on electronic maps?

[Redrobes]

Is there any need to use a brush wider than 1 pixel when determining length?

Not really if PS counts the pixels up. Mine showed a percentage black or white. By using thicker brush it was more accurate cos mine was something like 0.7% or something. With a 10pix wide brush it went to 6.7%. Also if you get the odd crooked bit of line then it matters 1/10th as much. If you cross over lines then you would have to compensate a bit tho cos you have missed one crossing points worth.

Also if you use a square brush instead of a round one then it will naturally compensate for travelling at 45 degrees where your covering 1.4 x as much distance per pixel as going horz or vert because the square brush stretched out at 45 deg is wider than a round one.

[Ascension]

Well, I would say that all you can do is take a best guess approach because not only are there turns and curves to navigate but there are also hills and valleys to navigate so getting a totally accurate number is just about impossible. So the way that I do a best guesstimate is to take a 100-pixel brush tip and set the spacing to 100% Then just draw a line following the path and count how many dots are there and multiple that by 100. You could use say a 10-pixel tip or whatever is needed.

[Carnifex]

What if you write numbers along a path in photoshop - separating them with tabulators?

[waldronate]

I vaguely recall that ProFantasy's Fractal Terrains Pro has a path measurement feature. The big problem there, of course, was getting the map aligned in the right projection and place on the globe in the first place.

[Greason Wolfe]

I vaguely recall that ProFantasy's Fractal Terrains Pro has a path measurement feature. The big problem there, of course, was getting the map aligned in the right projection and place on the globe in the first place.

Hrm. I thought that was a straight line measurement (the little Ruler icon). Unless, of course, there is another update that I've missed.

GW

[waldronate]

Hrm. I thought that was a straight line measurement (the little Ruler icon). Unless, of course, there is another update that I've missed.GW

To quote from the status bar message for FT's ruler tool: "Left click to start measurement, Shift+Click to add segment, Click again for distance readout". For spherical worlds it's great-circle distance; for planar worlds it's planar distance. The path consists of as many little segments as you'd like to click while holding down the Shift key and they are all summed at the end.

[Greason Wolfe]

To quote from the status bar message for FT's ruler tool: "Left click to start measurement, Shift+Click to add segment, Click again for distance readout". For spherical worlds it's great-circle distance; for planar worlds it's planar distance. The path consists of as many little segments as you'd like to click while holding down the Shift key and they are all summed at the end.

See, that's what I get for paying attention. Bwahahahaha!

GW