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Author Topic: Calculate whether a point exists on a line  (Read 3167 times)

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Offline motorollinTopic starter

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Calculate whether a point exists on a line
« on: August 30, 2007, 07:23:56 PM »
Given the coordinates x50,y50 and x100,y100, is there an equation which can determine whether another point exists along the "line" between the first two? Or better yet whether it is a certain distance from the line?

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moto
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Code: [Select]
10  IT\'S THE FINAL COUNTDOWN
20  FOR C = 1 TO 2
30     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NAAAA
40     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NA-NA-NAAAAA
50  NEXT C
60  NA-NA-NAAAA
70  NA-NA NA-NA-NA-NA-NAAAA NAAA-NAAAAAAAAAAA
80  GOTO 10
 

Offline motorollinTopic starter

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Re: Calculate whether a point exists on a line
« Reply #1 on: August 30, 2007, 10:22:16 PM »
Wow, thanks! Now for a stupid question... In the set of calculations 1 - 4, what value do I use for q?

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moto
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Code: [Select]
10  IT\'S THE FINAL COUNTDOWN
20  FOR C = 1 TO 2
30     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NAAAA
40     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NA-NA-NAAAAA
50  NEXT C
60  NA-NA-NAAAA
70  NA-NA NA-NA-NA-NA-NAAAA NAAA-NAAAAAAAAAAA
80  GOTO 10
 

Offline motorollinTopic starter

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Re: Calculate whether a point exists on a line
« Reply #2 on: September 01, 2007, 11:38:54 AM »
Excellent - thanks!

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moto
Logged
Code: [Select]
10  IT\'S THE FINAL COUNTDOWN
20  FOR C = 1 TO 2
30     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NAAAA
40     DA-NA-NAAAA-NAAAA DA-NA-NA-NA-NA-NA-NAAAAA
50  NEXT C
60  NA-NA-NAAAA
70  NA-NA NA-NA-NA-NA-NAAAA NAAA-NAAAAAAAAAAA
80  GOTO 10
 
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