Pin point a location on the map

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hello, everybody, lately ive start working on on c# poroject ,something similar to this:

all i want to know is how to calculate the x,y chords and have them be presented on the map images, and i got no ideas where to start, there must be something that im missing to help me get started on that, hope you guys can help!

[florian0]

Define two pairs of coordinates on the map. build a relation between the game-coords and the pixels of the image.

e.g.

InGame -> Pixels
0|0 -> 3000|200
3500|250 -> 4300|800

Having these, you can calculate a conversion factor for "pixels per ingame-meter" and an offset.

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Originally Posted by florian0

Define two pairs of coordinates on the map. build a relation between the game-coords and the pixels of the image.

e.g.

InGame -> Pixels
0|0 -> 3000|200
3500|250 -> 4300|800

Having these, you can calculate a conversion factor for "pixels per ingame-meter" and an offset.

i should create an alrgorithm to find any location based on those 2 dots relations, but can you ellaborate more a littile bit?

[florian0]

I have a cpp-example for the translation. A friend of mine made it:

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Originally Posted by florian0

I have a cpp-example for the translation. A friend of mine made it:

sadly c++ isnt my thing, meant to make it in c.
but thanks, it'll do.