Mykle · Global Mapper User

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Mykle
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  • Draw a line across the BOEM data, extending outside into the GEBCO data, and show us the profile for that line.  What we are interested in is the elevation values of both data sets and the boundary (white) area.  It is looking like the BOEM is sti…
  • In case you do not see a response from the programmers, suggest sending your suggestion directly to geohelp@bluemarblegeo.com. As alternatives (or work-arounds, your choice!), you could use the "All Data Visible On Screen" option. Or, draw a recta…
  • I have updated my copy of Global Mapper (Global Mapper v18.2.2 (b081617) [64-bit] - REGISTERED) I have downloaded wide-area bathymetry from British Oceanographic Data Centre covering the Gulf of Mexico (requires establishing a free account). I have …
  • There may be differences with newer (daily) versions, so you might start by updating yours (as I am): http://data.bluemarblegeo.com/downloads/global-mapper/dailybuilds/ If you are using the same file that I am, there should not be any differences. …
  • We are diving into the picky details, so you could add your version info (from the top line of the GM window). Here's what I'm using: Global Mapper v18.2.2 (b080217) [64-bit] - REGISTERED When I simply drag the file BOEM_Bathymetry_East_ft_tiff.zi…
  • TIFF files are normally images and cover rectangular areas.  They MAY be formatted as elevation data, where each pixel provides an elevation rather than color information.  I downloaded BOEM_Bathymetry_West_ft_tiff.zip and the East file, the…
  • Download the seep-anomaly-positives-zip file containing shape file data.  Download the BOEM-Seafloor-Anomalies-Jan-2016-DWG.zip file.  Load the seep-anomaly-positives-zip into Global Mapper.  You don't need to unzip the files, just drag the zip f…
  • I can get this to work, more or less, by using the cropping tab on the Raster Options dialog.  Using manual values, I specified S, W, and E For the Western Aleutians East sheet: S= 51, W= -180, E= -173 Then export to Google Maps Tiles.  (I used zo…
  • If the tfw has the same name as the tif file and both files are in the same folder, GM will use it when loading the tif. I don't know of a way to load a tfw with a different name and/or location.  I *think* that geotiff data will take precedence if…
  • Look at your elevation data.  Possibly by running a line down the drainage, across the highway, and to the river.  Then look at the profile of that line.  You can also shade the elevation data, looking at the character of the surface near the highwa…
  • Your PDF file has a lot of information included on the first page.  Bearings, distances, reference numbers, etc. The Bearings appear to be shown as 25d39'25" where "d" is the degree symbol. A bearing may refer to one line segment (between two inte…
  • When you open the case study and receive the file-not-found screen, edit the address to remove the characters after ".pdf" and the file will then open fine.
  • If your data are displayed in a projection that does not use lat/long, like UTM, then you can use File > Export > Vector, select the CSV format, and check the selection for "Export Separate Lat/Lon Coordinates for Each Point".  The CSV file …
  • Thanks Bob!  I usually watch the Discussions list for updates, but that requires more of a commitment. 
  • Bob, Are you seeing something that we aren't? Mykle
  • The spreadsheet method works.  If you have more work to do with the attributes of these points, this may be the preferred option.  Otherwise the steps you describe can be completed in Global Mapper to shift by bearing and distance, then by elevati…
  • "Deleted" objects are not removed, but simply not displayed.  Ctrl+Shft+D will toggle the display of deleted objects.  While displayed, you can select objects and un-delete them, then toggle the rest back to hidden.  Note that when you create a li…
  • With the digitizer tool, select your points. Right-click, select "Create Line Features", then select "Create New Line Feature from Selected Points". A line will be drawn through your points.  The line will not be drawn through your points in the o…
  • While I will frequently use a spreadsheet to calculate coordinates of stations along parallel lines, you can do it within GM by constructing a perpendicular temp line to one you have already drawn.  Create points along the temp line at the interval …
  • Data point: Installation was fine on my Win7 Pro x64, and the program opens normally. I do NOT have the 32-bit version installed, and no GM folder appeared in Program Files (x86).
  • Bob, looks like the desired option would be similar to the options available when exporting data, whether to scale to the entire loaded data set, or scale to the data set that is visible, or scale to the values within a selected object.  It may be…
  • In Global Mapper, specify your projection as UTM with your zone (18N).  Then set the Position Display Format to MGRS, in Configuration > General > Measure/Units > Position Display Format.  Some gory details: Note that there are tw…
  • Steve, One of my applications that has used the Open Street Maps format (directory tree of tile files) is changing to using the MBTiles format for more efficient file storage.  The developer has pointed out an application that provides a database …
  • There are options in Global Mapper to specify how border tiles are treated, either filled with your background color outside of your boundary and/or layer limits, or skipping tiles that are not completely filled.  Your use of PNG to make blank areas…
  • Steve, It looks like MBtiles displays are restricted to the zoom levels provided by the data, unless you have a viewer that provides for displays at zoom levels that are not included in the data file. The MBtiles viewer available at http://www.all…
  • Oh my ...  isn't that the cat's meow !  That looks like it is EXACTLY what we are trying to do.  Can you rub our noses in that being documented in the HELP (or elsewhere)? (i don't see it in the Overlay Control Center help) Or is this a feature …
  • The TIP sez "The Swipe Tool allows you to interactively hide part of a single raster layer so that you can easily see what is underneath it. ..." I have used the Hide/Show Overlays control to compare vector as well as raster layers, and not just a …
  • Unless I have plucked this note out of context, this may provide a workaround: "Optionally, an individual LAS file's spatial reference can be overwritten by creating a projection file (*.prj) with the same name that resides in the same directory…
  • Thanks for posting their response, Chris. 
  • As far as I know, Global Mapper does not select layers/files by file type, although that is an interesting idea.   There are several methods that you may find useful for organizing your files, whether within Global Mapper, or within several instanc…