InPolygon data selection from a data file

2015 5 15
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更新时间：2015 5 15
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Hi
I have following data
Lat Lon Reading
23 56 1
24 58 2
26 59 3
22 57 4
25 54 5
29 51 6
22 52 7
21 50 8
now I want to select data which lies in specific lat lon range, lets say lat = 21-25 and lon = 50-54
in polygon function is only allowing me set two points

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amberly hadden
amberly hadden 2015-5-15
编辑：Walter Roberson 2015-5-15

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numbers = xlsread('test.xls');
lats = numbers(:, 1);
lons = numbers(:, 2);
z = numbers(:, 3);
lat1 = 58.4
lon1 = 26.1
z1 = 1.65
lat2 = 58.5
lon2 = 27
z2 = 1.11
desiredLats = lats >= lat1 & lats <= lat2
desiredLons = lons > lon1 & lons <= lon2
desiredZs = z <= z1 & z >= z2
rowsToExtract = desiredLats & desiredLons & desiredZs
extractedRows = numbers(rowsToExtract, :)

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