How to search and match two set of X,Y coordinates

[enthusiast4]

Hello everyone!

I am trying to match two set of pixels coordinates (in string format)  for e.g set A= {(120, 300) , (100, 200) , (400, 500)} and set B= {(100, 200), (600,700)}. It should first match set B with set A such that it should give me a score whenever a coordinate of set B matches with one of the coordinate in set A. Here coordinate (100,200) of set B Matches with set A

Then it should give me a % match= matched pixels of set B in set A /total number of pixels in set B.

I have tried with MatchPattern.VI, but it gives me a match only when i search set B coordinates one at a time and not as a whole set of coordinates. 

Is there any other alternative or information by which I can match two set of coordinates like Inner join in table. Any help would be much appreciated. Thanks

[GerdW · Accepted solution]

Hi enthusiast,

just a very simple approach:

two set of pixels coordinates (in string format)

You can also compare strings, but it's probably more safe to compare numbers when you handle pixel locations…

[enthusiast4]

Thank you for your fast solution. Only Problem is that my set of Pixels coordinates are in the form of string shown in the attached iage.

[GerdW]

Hi enthusiast,

what's your problem exactly?

[enthusiast4]

When im trying to convert the spreadsheet string into a 2D Array, ist giving me an extra column in Array indicator. Also, im confused how to convert this 2 D Array into  Cluster of Array (Cluster of X, Y coordinates) as you have shown in the VI. 

[GerdW]

Hi enthusiast,

basic rule: when YOU have problems with YOUR vi then YOU should attach YOUR vi here so WE can examine it…

There is a nice IndexAndBundleCluster function:

[enthusiast4]

Sorry i didn't upload my VI in the first place. My whole application is a big one and here is a small Code in which I am stuck after converting into the 2D Array. can you help me in how to procedd? I tried with IndexandBundle Cluster before but i am not sure how to connect the dots to be same as your VI you have posted at first

[GerdW]

Hi enthusiast,

use my code above to compare your XY coordinates:

[enthusiast4]

Thank you so much. I got the correct solution from you.