How to find 3rd coordinate of a triangle given 2 others
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In ABC triangle, there are A and B coordinates are given, AB, AC and BC distances are known, the ACB angle is 90'. How to find C point x,y coordinates?
chesnokov
:omg: Stolen membership? :omg:
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles] -
:omg: Stolen membership? :omg:
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]Not stolen membership. It's him and he's been asking extremely basic questions for quite a while now: Unresolved external symbol[^]. It's funny how he asked if we earn money with votes and started whining after someone voted down his article. I've (along with a few other regulars) stopped providing any assistance to him. And now he has posted a trigonometry question in the Visual C++ board. :rolleyes:
Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche .·´¯`·->Rajesh<-·´¯`·. [Microsoft MVP - Visual C++]
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In ABC triangle, there are A and B coordinates are given, AB, AC and BC distances are known, the ACB angle is 90'. How to find C point x,y coordinates?
chesnokov
Does your triangle look like:
A
|\
| \
| \
| \
| \
| \
| \
C -------- B"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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Not stolen membership. It's him and he's been asking extremely basic questions for quite a while now: Unresolved external symbol[^]. It's funny how he asked if we earn money with votes and started whining after someone voted down his article. I've (along with a few other regulars) stopped providing any assistance to him. And now he has posted a trigonometry question in the Visual C++ board. :rolleyes:
Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche .·´¯`·->Rajesh<-·´¯`·. [Microsoft MVP - Visual C++]
Rajesh R Subramanian wrote:
And now he has posted a trigonometry question in the Visual C++ board.
With requirements' redundance... :~
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles] -
Does your triangle look like:
A
|\
| \
| \
| \
| \
| \
| \
C -------- B"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
Well, I suppose you may freely rotate it and (as long as you keep the straight angle) make it isosceles. :-D
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles] -
Well, I suppose you may freely rotate it and (as long as you keep the straight angle) make it isosceles. :-D
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]My question was actually leading up to something else. If he knows the x,y coordinates of A and B, and he knows the distance of AC and BC, then he should be able to add/subtract from A and B to get C. I've never studied trigonometry so I may be missing something obvious.
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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My question was actually leading up to something else. If he knows the x,y coordinates of A and B, and he knows the distance of AC and BC, then he should be able to add/subtract from A and B to get C. I've never studied trigonometry so I may be missing something obvious.
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
I was just kidding and your point is good. IMHO the problem with is question is the redundance of inputs (excluding the 'stolen membership hypothesis'). :)
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles] -
In ABC triangle, there are A and B coordinates are given, AB, AC and BC distances are known, the ACB angle is 90'. How to find C point x,y coordinates?
chesnokov
This problem can be seen as finding intersection of two circle. also this problem will have two solutions. How to imagine it as problem of intersection of two circles. Circle 1 center point be A with radius AC and circle 2 as of center B and radius BC. Note: ACB angle 90 degree information is redundant and is not required check out the below link to find the solution of intersection points of two circles and well as the c code to do it. The c code can be directly used for your purpose. http://ozviz.wasp.uwa.edu.au/~pbourke/geometry/2circle/[^] You could have found a faster solution in mathematics and algorithm discussion section.
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This problem can be seen as finding intersection of two circle. also this problem will have two solutions. How to imagine it as problem of intersection of two circles. Circle 1 center point be A with radius AC and circle 2 as of center B and radius BC. Note: ACB angle 90 degree information is redundant and is not required check out the below link to find the solution of intersection points of two circles and well as the c code to do it. The c code can be directly used for your purpose. http://ozviz.wasp.uwa.edu.au/~pbourke/geometry/2circle/[^] You could have found a faster solution in mathematics and algorithm discussion section.
Cosmic Egg wrote:
Note: ACB angle 90 degree information is redundant and is not required
Also distance between
AandBis redundant (we've their coords). Generally speaking, two pieces of info are redundant. :)If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles] -
Does your triangle look like:
A
|\
| \
| \
| \
| \
| \
| \
C -------- B"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
Yes exactly. I've got recently extension as we can have either A,B coords and CBA,CAB angles to find out C coords, or we know B coord only plus AB,BC lengths to find out A coords. I'm ashamed :-O I always exceled in geometry but that was dozen of years ago in school.
chesnokov
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Does your triangle look like:
A
|\
| \
| \
| \
| \
| \
| \
C -------- B"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
... but do not forget arbitrary rotation of the triangle.
chesnokov
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This problem can be seen as finding intersection of two circle. also this problem will have two solutions. How to imagine it as problem of intersection of two circles. Circle 1 center point be A with radius AC and circle 2 as of center B and radius BC. Note: ACB angle 90 degree information is redundant and is not required check out the below link to find the solution of intersection points of two circles and well as the c code to do it. The c code can be directly used for your purpose. http://ozviz.wasp.uwa.edu.au/~pbourke/geometry/2circle/[^] You could have found a faster solution in mathematics and algorithm discussion section.
I knew ~pbourke site long times ago it was great. The solution is very near and seems obvious. Mathematics thread seems not so populated, also I would not met there me friends :-)
chesnokov
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Not stolen membership. It's him and he's been asking extremely basic questions for quite a while now: Unresolved external symbol[^]. It's funny how he asked if we earn money with votes and started whining after someone voted down his article. I've (along with a few other regulars) stopped providing any assistance to him. And now he has posted a trigonometry question in the Visual C++ board. :rolleyes:
Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche .·´¯`·->Rajesh<-·´¯`·. [Microsoft MVP - Visual C++]
Unbelievable [^]. :-D
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles] -
Unbelievable [^]. :-D
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]More things[^] He deleted all his rude posts!
Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche .·´¯`·->Rajesh<-·´¯`·. [Microsoft MVP - Visual C++]
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More things[^] He deleted all his rude posts!
Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche .·´¯`·->Rajesh<-·´¯`·. [Microsoft MVP - Visual C++]
:omg: I never saw Mark so upset :omg: Now I'm curious about deleted messages content. :)
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles] -
:omg: I never saw Mark so upset :omg: Now I'm curious about deleted messages content. :)
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]No, Mark was not upset. That is the dialogues from Monty Python holy grail scene 8. :)
Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche .·´¯`·->Rajesh<-·´¯`·. [Microsoft MVP - Visual C++]
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No, Mark was not upset. That is the dialogues from Monty Python holy grail scene 8. :)
Many are stubborn in pursuit of the path they have chosen, few in pursuit of the goal - Friedrich Nietzsche .·´¯`·->Rajesh<-·´¯`·. [Microsoft MVP - Visual C++]
OK but there should be a reason to quote it, shouldn't it?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles] -
OK but there should be a reason to quote it, shouldn't it?
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]When I asked him not to low-vote all the posts, he said that we must look at things the "Monty Python" way. So, Mark replied with a Monty python quote. He asked me if I earn money with votes and said that I am partial towards high votes. Later on, ironically he started squealing and crying after someone voted his article down. Talk about the people who won't follow their own suggestions. :)
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When I asked him not to low-vote all the posts, he said that we must look at things the "Monty Python" way. So, Mark replied with a Monty python quote. He asked me if I earn money with votes and said that I am partial towards high votes. Later on, ironically he started squealing and crying after someone voted his article down. Talk about the people who won't follow their own suggestions. :)
I think he is a
CodeGuru's infiltrator whoose purpose is defamingCodeProject MVPs' honor :laugh:If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]