Data Reduction and sub set of data

2 次查看（过去 30 天）
amberly hadden
amberly hadden 2014-12-3
编辑： Image Analyst 2014-12-9
Hello every body,
I'm new with Matlab. I want to write a code whcih can be used on my grid file to reduce it to region of my interest. I have lat lon and displacement values. I want to define a circle of radius 100Km from a central point(lat lon) so that everything outside the circle delete and I get a resultant grid file with data of my own interest.
I would like to pay some reward (as Im a student) for this work.
Please let me know if anybody is interested
Thanks

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2014-12-3
  14 个评论
显示 12更早的评论
Image Analyst
Image Analyst 2014-12-9
Try this code:
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, :)
amberly hadden
amberly hadden 2014-12-9
编辑：Image Analyst 2014-12-9
hi its producing same data set insread
solved my problem
:) Thanks

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Images 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by