coordinates - MATLAB - Correlation with Vectors -

-

i have 2 vectors xyz different sizes. can call data1 , data2, where:

data1 = [1000 3:55 2000; ...           950 2200 4.5; ...          1050 2350 5.5; ...          1025 2500 6; ...          1075 2600 7; ...          1000 2700 8];  data2 = [1000 2650 7.95; ...          1000 2750 8.16; ...          1000 2700 9; ...          1025 3000 10];

the minimum acceptable difference between points 100 meters position (x, y) , 0.2 depth (z).

in case, points between vectors p_data1 = [1000 2700 8] , p_data2 = [1000 2650 7.95], because distance acceptable , depth nearest.

does know function can correlation me? think in matalab there function problem , high performance, calculation thousands of points.

i'm using nested loop, performance bad, because calculate distances, differences between depths every point , filter matrix.

in short, want find points lower , lower depths between 2 vectors of different sizes defined ranges.

i thank help!

data1 = [950 2200 4.5; ...          1050 2350 5.5; ...          1025 2500 6; ...          1075 2600 7; ...          1000 2700 8];  data2 = [1000 2650 7.95; ...          1000 2750 8.16; ...          1000 2700 9; ...          1025 3000 10];  vec1 = data1(:,3); vec2 = data2(:,3); [p,q] = meshgrid(vec1, vec2); output1 = 0; %initial set  while output1 == 0 sub = [abs(p(:)-q(:))]; [m,i] = min(sub); inddata1 = floor(i/4); inddata2 = mod(i,inddata1);  %this computes smallest possible z  %check if works condition 2: checkcolumn1 = abs(data1(inddata1,1) - data2(inddata2,1)); checkcolumn2 = abs(data1(inddata1,2) - data2(inddata2,2)); if checkcolumn1 < 200 && checkcolumn2 <200    output1 = data1(inddata1,:);    output2 = data2(inddata2,:); else min(sub) = 1000000 %huge high number remove min end end

so program should ask, basically, first calculates minimum of z column, can add condition has less 0.2 way, assumed there has value smaller 0.2. tries see if first condition can fulfilled. although uses loop search, efficient, jump out of loop finds correct values.


Comments

Post a Comment

Popular posts from this blog

Java 3D LWJGL collision -

-
i making 3d java game lwjgl library, , wondering how add collision detection, player not go through models. i using obj models. here objloader class, loads models: package renderengine; import java.io.bufferedreader; import java.io.file; import java.io.filenotfoundexception; import java.io.filereader; import java.util.arraylist; import java.util.list; import models.rawmodel; import org.lwjgl.util.vector.vector2f; import org.lwjgl.util.vector.vector3f; public class objloader { public static rawmodel loadobjmodel(string filename, loader loader){ filereader fr = null; try { fr = new filereader(new file("res/"+filename+".obj")); } catch (filenotfoundexception e) { system.err.println("couldn't load file!"); e.printstacktrace(); } bufferedreader reader = new bufferedreader(fr); string line; list<vector3f> vertices = new arraylist<vector3f...
Read more

spring - SubProtocolWebSocketHandler - No handlers -

-
i have ugly error during deploying spring app on jboss. 18:11:16,025 error [org.apache.catalina.core.containerbase.[jboss.web].[default-host].[/consumer]] (msc service thread 1-7) exception sending context initialized event listener instance of class org.springframework.web.context.contextloaderlistener: org.springframework.context.applicationcontextexception: failed start bean 'subprotocolwebsockethandler'; nested exception java.lang.illegalargumentexception: no handlers @ org.springframework.context.support.defaultlifecycleprocessor.dostart(defaultlifecycleprocessor.java:176) [spring-context-4.1.3.release.jar:4.1.3.release] @ org.springframework.context.support.defaultlifecycleprocessor.access$200(defaultlifecycleprocessor.java:51) [spring-context-4.1.3.release.jar:4.1.3.release] @ org.springframework.context.support.defaultlifecycleprocessor$lifecyclegroup.start(defaultlifecycleprocessor.java:346) [spring-context-4.1.3.release.jar:4.1.3.release] @ org.s...
Read more

methods - python can't use function in submodule -

-
my folder structure this: pythonstuff/ program.py modulea/ __init__.py foo.py bar.py here's code bar.py : def hello(): print("hello, world!") here's code program.py : #!/usr/bin/env python3 modulea import bar bar.hello() i run $ python3 program.py somehow error: file "program.py", line 3, in <module> bar.hello() attributeerror: 'module' object has no attribute 'hello' edit: __init__.py file empty. edit2: after trying realized had bar.py in root directory contained hello() method. bar.py in modulea/ directory empty. add it import os __all__ = [] module in os.listdir(os.path.dirname(__file__)): if module != '__init__.py' , module[-3:] == '.py': __all__.append(module[:-3]) the init .py files required make python treat directories containing packages; done prevent directories common name, such string, unintentionally hiding v...
Read more