How to calculate coordinate X meters away from a point but towards another in C#
Let's say I have 2 coordinates that are ~222.33 meters away from each other :
A: 49.25818, -123.20626
B: 49.25813, -123.2032
Those 2 points makes a segment.
How can I calculate the coordinate of point Z that is X meters away from either A or B but towards the other point?
I already know the distance between my 2 points using System.Device.Location library.
GeoCoordinate A = new GeoCoordinate(49.25818, -123.20626);
GeoCoordinate B = new GeoCoordinate(49.25813, -123.2032);
var distanceInMeters = A.GetDistanceTo(B);
// distanceInMeters = 222.33039783713738
I'm looking for something like this:
GeoCoordinate GetPointTowards(GeoCoordinate fromPoint, GeoCoordinate towardPoint, double distanceInMeter) {
[???]
}
I think I may need the bearing or something to be able to get the new point location.
Most examples I've found are for iOS, Android or GMaps with specific libraries..
c# geospatial distance
asked Nov 21 '18 at 1:23
RemiRemi
15212
|
show 1 more comment
Let's say I have 2 coordinates that are ~222.33 meters away from each other :
A: 49.25818, -123.20626
B: 49.25813, -123.2032
Those 2 points makes a segment.
How can I calculate the coordinate of point Z that is X meters away from either A or B but towards the other point?
I already know the distance between my 2 points using System.Device.Location library.
GeoCoordinate A = new GeoCoordinate(49.25818, -123.20626);
GeoCoordinate B = new GeoCoordinate(49.25813, -123.2032);
var distanceInMeters = A.GetDistanceTo(B);
// distanceInMeters = 222.33039783713738
I'm looking for something like this:
GeoCoordinate GetPointTowards(GeoCoordinate fromPoint, GeoCoordinate towardPoint, double distanceInMeter) {
[???]
}
I think I may need the bearing or something to be able to get the new point location.
Most examples I've found are for iOS, Android or GMaps with specific libraries..
c# geospatial distance
asked Nov 21 '18 at 1:23
RemiRemi
15212
maybe this nuget library can help? numerics.mathdotnet.com
– JohnB
Nov 21 '18 at 1:28
Could you provide another two coordinates with the correct meters please.. Need to test my logic before posting a Method that you can pass into.
– Levon Ravel
Nov 21 '18 at 1:48
@LevonRavel : {49.25835, -123.21894}, {49.25837, -123.21989}. They are 69.038124262531255 meters away.
– Remi
Nov 21 '18 at 1:52
okay I can post the equation
– Levon Ravel
Nov 21 '18 at 1:53
1
stackoverflow.com/questions/3225803/… Found this answer hope it helps. It is in kilometers but I think the conversion to meters should be easy enough.
– Levon Ravel
Nov 21 '18 at 2:26
|
show 1 more comment
Let's say I have 2 coordinates that are ~222.33 meters away from each other :
A: 49.25818, -123.20626
B: 49.25813, -123.2032
Those 2 points makes a segment.
How can I calculate the coordinate of point Z that is X meters away from either A or B but towards the other point?
I already know the distance between my 2 points using System.Device.Location library.
GeoCoordinate A = new GeoCoordinate(49.25818, -123.20626);
GeoCoordinate B = new GeoCoordinate(49.25813, -123.2032);
var distanceInMeters = A.GetDistanceTo(B);
// distanceInMeters = 222.33039783713738
I'm looking for something like this:
GeoCoordinate GetPointTowards(GeoCoordinate fromPoint, GeoCoordinate towardPoint, double distanceInMeter) {
[???]
}
I think I may need the bearing or something to be able to get the new point location.
Most examples I've found are for iOS, Android or GMaps with specific libraries..
c# geospatial distance
asked Nov 21 '18 at 1:23
RemiRemi
15212
Let's say I have 2 coordinates that are ~222.33 meters away from each other :
A: 49.25818, -123.20626
B: 49.25813, -123.2032
Those 2 points makes a segment.
How can I calculate the coordinate of point Z that is X meters away from either A or B but towards the other point?
I already know the distance between my 2 points using System.Device.Location library.
GeoCoordinate A = new GeoCoordinate(49.25818, -123.20626);
GeoCoordinate B = new GeoCoordinate(49.25813, -123.2032);
var distanceInMeters = A.GetDistanceTo(B);
// distanceInMeters = 222.33039783713738
I'm looking for something like this:
GeoCoordinate GetPointTowards(GeoCoordinate fromPoint, GeoCoordinate towardPoint, double distanceInMeter) {
[???]
}
I think I may need the bearing or something to be able to get the new point location.
Most examples I've found are for iOS, Android or GMaps with specific libraries..
c# geospatial distance
c# geospatial distance
asked Nov 21 '18 at 1:23
RemiRemi
15212
asked Nov 21 '18 at 1:23
RemiRemi
15212
edited Nov 21 '18 at 2:15
Remi
asked Nov 21 '18 at 1:23
RemiRemi
15212
asked Nov 21 '18 at 1:23
RemiRemi
15212
asked Nov 21 '18 at 1:23
RemiRemi
15212
15212
maybe this nuget library can help? numerics.mathdotnet.com
– JohnB
Nov 21 '18 at 1:28
Could you provide another two coordinates with the correct meters please.. Need to test my logic before posting a Method that you can pass into.
– Levon Ravel
Nov 21 '18 at 1:48
@LevonRavel : {49.25835, -123.21894}, {49.25837, -123.21989}. They are 69.038124262531255 meters away.
– Remi
Nov 21 '18 at 1:52
okay I can post the equation
– Levon Ravel
Nov 21 '18 at 1:53
1
stackoverflow.com/questions/3225803/… Found this answer hope it helps. It is in kilometers but I think the conversion to meters should be easy enough.
– Levon Ravel
Nov 21 '18 at 2:26
|
show 1 more comment
maybe this nuget library can help? numerics.mathdotnet.com
– JohnB
Nov 21 '18 at 1:28
Could you provide another two coordinates with the correct meters please.. Need to test my logic before posting a Method that you can pass into.
– Levon Ravel
Nov 21 '18 at 1:48
@LevonRavel : {49.25835, -123.21894}, {49.25837, -123.21989}. They are 69.038124262531255 meters away.
– Remi
Nov 21 '18 at 1:52
okay I can post the equation
– Levon Ravel
Nov 21 '18 at 1:53
1
stackoverflow.com/questions/3225803/… Found this answer hope it helps. It is in kilometers but I think the conversion to meters should be easy enough.
– Levon Ravel
Nov 21 '18 at 2:26
maybe this nuget library can help? numerics.mathdotnet.com
– JohnB
Nov 21 '18 at 1:28
maybe this nuget library can help? numerics.mathdotnet.com
– JohnB
Nov 21 '18 at 1:28
Could you provide another two coordinates with the correct meters please.. Need to test my logic before posting a Method that you can pass into.
– Levon Ravel
Nov 21 '18 at 1:48
Could you provide another two coordinates with the correct meters please.. Need to test my logic before posting a Method that you can pass into.
– Levon Ravel
Nov 21 '18 at 1:48
@LevonRavel : {49.25835, -123.21894}, {49.25837, -123.21989}. They are 69.038124262531255 meters away.
– Remi
Nov 21 '18 at 1:52
@LevonRavel : {49.25835, -123.21894}, {49.25837, -123.21989}. They are 69.038124262531255 meters away.
– Remi
Nov 21 '18 at 1:52
okay I can post the equation
– Levon Ravel
Nov 21 '18 at 1:53
okay I can post the equation
– Levon Ravel
Nov 21 '18 at 1:53
1
1
stackoverflow.com/questions/3225803/… Found this answer hope it helps. It is in kilometers but I think the conversion to meters should be easy enough.
– Levon Ravel
Nov 21 '18 at 2:26
stackoverflow.com/questions/3225803/… Found this answer hope it helps. It is in kilometers but I think the conversion to meters should be easy enough.
– Levon Ravel
Nov 21 '18 at 2:26
|
show 1 more comment
1 Answer
1
active
oldest
votes
Here's an outline of how I would do it. With this approach, there is no need to explicitly deal with the difference in units between coordinates and distances because taking the ratio of target to total distance eliminates the unit.
totalDistance = distance in meters between point A and point B.
targetDistance = distance in meters to travel from point A to point B
ratio = targetDistance / totalDistance
diffX = B.X - A.X
diffY = B.Y - A.Y
targetX = A.X + (ratio * diffX)
targetY = A.Y + (ratio * diffY)
But this wouldn't handle the edge cases like being at 179 degrees longitude and adding 3 degrees which would put you at -178 longitude.
answered Nov 21 '18 at 2:42
LynnLynn
212
add a comment |
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Here's an outline of how I would do it. With this approach, there is no need to explicitly deal with the difference in units between coordinates and distances because taking the ratio of target to total distance eliminates the unit.
totalDistance = distance in meters between point A and point B.
targetDistance = distance in meters to travel from point A to point B
ratio = targetDistance / totalDistance
diffX = B.X - A.X
diffY = B.Y - A.Y
targetX = A.X + (ratio * diffX)
targetY = A.Y + (ratio * diffY)
But this wouldn't handle the edge cases like being at 179 degrees longitude and adding 3 degrees which would put you at -178 longitude.
answered Nov 21 '18 at 2:42
LynnLynn
212
add a comment |
Here's an outline of how I would do it. With this approach, there is no need to explicitly deal with the difference in units between coordinates and distances because taking the ratio of target to total distance eliminates the unit.
totalDistance = distance in meters between point A and point B.
targetDistance = distance in meters to travel from point A to point B
ratio = targetDistance / totalDistance
diffX = B.X - A.X
diffY = B.Y - A.Y
targetX = A.X + (ratio * diffX)
targetY = A.Y + (ratio * diffY)
But this wouldn't handle the edge cases like being at 179 degrees longitude and adding 3 degrees which would put you at -178 longitude.
answered Nov 21 '18 at 2:42
LynnLynn
212
add a comment |
Here's an outline of how I would do it. With this approach, there is no need to explicitly deal with the difference in units between coordinates and distances because taking the ratio of target to total distance eliminates the unit.
totalDistance = distance in meters between point A and point B.
targetDistance = distance in meters to travel from point A to point B
ratio = targetDistance / totalDistance
diffX = B.X - A.X
diffY = B.Y - A.Y
targetX = A.X + (ratio * diffX)
targetY = A.Y + (ratio * diffY)
But this wouldn't handle the edge cases like being at 179 degrees longitude and adding 3 degrees which would put you at -178 longitude.
answered Nov 21 '18 at 2:42
LynnLynn
212
Here's an outline of how I would do it. With this approach, there is no need to explicitly deal with the difference in units between coordinates and distances because taking the ratio of target to total distance eliminates the unit.
totalDistance = distance in meters between point A and point B.
targetDistance = distance in meters to travel from point A to point B
ratio = targetDistance / totalDistance
diffX = B.X - A.X
diffY = B.Y - A.Y
targetX = A.X + (ratio * diffX)
targetY = A.Y + (ratio * diffY)
But this wouldn't handle the edge cases like being at 179 degrees longitude and adding 3 degrees which would put you at -178 longitude.
answered Nov 21 '18 at 2:42
LynnLynn
212
edited Nov 21 '18 at 2:55
answered Nov 21 '18 at 2:42
LynnLynn
212
answered Nov 21 '18 at 2:42
LynnLynn
212
answered Nov 21 '18 at 2:42
LynnLynn
212
212
add a comment |
add a comment |
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maybe this nuget library can help? numerics.mathdotnet.com
– JohnB
Nov 21 '18 at 1:28
Could you provide another two coordinates with the correct meters please.. Need to test my logic before posting a Method that you can pass into.
– Levon Ravel
Nov 21 '18 at 1:48
@LevonRavel : {49.25835, -123.21894}, {49.25837, -123.21989}. They are 69.038124262531255 meters away.
– Remi
Nov 21 '18 at 1:52
okay I can post the equation
– Levon Ravel
Nov 21 '18 at 1:53
1
stackoverflow.com/questions/3225803/… Found this answer hope it helps. It is in kilometers but I think the conversion to meters should be easy enough.
– Levon Ravel
Nov 21 '18 at 2:26