How do i measure my map?

[Elros]

How do i measure my map?

I need to measure the distance from point to point of my map, the length of one street, the size of a continent or the length of a river, in miles or km.

I created my map in Photoshop, i need that information to calculate the travel time in my book.

Someone can Help me? Sorry for my english is not my first llenguage .

[bkh1914]

Doesn't Photoshop have a measure tool?

I use GIMP and it has a Measure tool that measures the distance between any two points on an image.

[johnvanvliet]

without seeing the map advice is a bit hard
there are different ways depending on the map projection

for example if it is in simple cylindrical projection and a whole planet then QGis can be used
or
if it is a small area in equal area projection then the gimp/ photoshop " measure tool" can be used

[Elros]

without seeing the map advice is a bit hard
there are different ways depending on the map projection

for example if it is in simple cylindrical projection and a whole planet then QGis can be used
or
if it is a small area in equal area projection then the gimp/ photoshop " measure tool" can be used

This is the map.

Mappa 1 Project Copyright.jpg


I dont know anything about projection.

[Elros]

Doesn't Photoshop have a measure tool?

I use GIMP and it has a Measure tool that measures the distance between any two points on an image.

Yes but photoshop measure in pixel, i need the measuration in Km or in miles.

[vanScoota]

If you know the scale of your map, you can measure the distance in pixels and easily calculate the „real“ distance by using the scale.

Example:
Your scale is 10 px/km.
You measure a distance of 260 px.
Then your distance is 260 / 10 = 26 km.

[Elros]

If you know the scale of your map, you can measure the distance in pixels and easily calculate the „real“ distance by using the scale.

Example:
Your scale is 10 px/km.
You measure a distance of 260 px.
Then your distance is 260 / 10 = 26 km.

I like this method.
Is there nothing more precise?

[Falconius]

That seems pretty precise. Basically the level of fidelity is in the hands of the map creator.

You may want to check this link regarding your rivers:
https://www.cartographersguild.com/s...ead.php?t=3822

[Elros]

That seems pretty precise. Basically the level of fidelity is in the hands of the map creator.

You may want to check this link regarding your rivers:
https://www.cartographersguild.com/s...ead.php?t=3822

Thanks for the advice , i've already looked at that link, another member has already recommended it to me in another section of this forum.

This is the correction
Mappa 1 Project Copyright.jpg

If you have any other advice on my map can you visit this link please ?
My first testing map, do you have any advice?

[Falconius]

Thanks for the advice , i've already looked at that link, another member has already recommended it to me in another section of this forum.

This is the correction
Mappa 1 Project Copyright.jpg

Oh, my apologies.