Results 1 to 2 of 2
  1. #1
    Global Mapper User
    Join Date
    Jul 2008
    Posts
    230

    Default Determining elevation difference between 3D Point data and elevation raster

    Mike,

    I have a dataset of 3D point data (shapefile) that is depth soundings that run mostly in about three long lines up and down a river so they're not very dense. I have another set of soundings for the area that are dense enough to grid. I've gridded that data and am wondering if there's a way to use Global Mapper to get differences (essentially height above or below terrain) for each of the data points in the first dataset I described from the gridded dataset. I'm basically trying to determine if there's a pattern error between the two datasets in this area.

    David

  2. #2
    Administrator
    Join Date
    Jun 2007
    Posts
    16,451

    Default

    David,

    Yes, if you grid both data sets (you might use the tightness slider to get a grid just near your actual points, you can then use the File->Combine Terrains menu command to combine the terrains into a new one with the difference between the layers.

    Let me know if I can be of further assistance.

    Thanks,

    Mike
    Global Mapper Support
    support@globalmapper.com

 

 

Similar Threads

  1. Replies: 2
    Last Post: 05-01-2013, 03:58 PM
  2. Shading elevation data below zero elevation
    By jmhacker in forum Elevation Data
    Replies: 2
    Last Post: 09-29-2011, 01:52 PM
  3. Export Raster/Elevation to kmz/kmf files
    By ShermJensen@sisna.com in forum Technical Support
    Replies: 2
    Last Post: 08-04-2008, 08:07 AM
  4. elevation lines on raster map
    By Sakis in forum Technical Support
    Replies: 7
    Last Post: 06-26-2008, 01:42 PM
  5. Replies: 5
    Last Post: 12-07-2007, 05:34 PM

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin® Version 4.2.1
Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.
Content Relevant URLs by vBSEO 3.6.1
Copyright 2008-2012 Globalmapperforum.com
All times are GMT. The time now is 10:51 AM.
vBulletin 4.0 skin by CompleteVB