topografix

This was fixed in EasyGPS 2.0 http://www.easygps.com/latest.asp

Use the Scissors tool in ExpertGPS to cut the track right before it shoots off into the great beyond. Then bring up the Track list on the left side and delete the unwanted track.

So how much would you be willing to pay? Make me an offer: paypal@topografix.com

If you upgrade to http://www.expertgps.com, you can use the Import command on the File menu to import a bunch of GPX or LOC files at once. They will all be imported into a single file.

Your GPS appears as a removable drive on your computer. Click Receive from GPS in EasyGPS and navigate to the /POI folder on your GPS. Select the .upt file, and EasyGPS will display your waypoints. To send data to the GPS, you need to save the .upt file that EasyGPS creates to the /POI folder.

Install http://www.expertgps.com/beta.asp and send the error log to me at support2006@expertgps.com

A new import option for delimited text (comma, tab, semicolon, etc) will be available at http://www.expertgps.com/beta.asp later this week.

Make sure you have MapSource 6.0 or later - if not, get the update from Garmin's Web site. Open one of your MapSource files, and click Save As. Change the file type to GPS Exchange Format (GPX) Then open the .gpx files in ExpertGPS. It sounds like you are renaming or moving the GPX files outside ExpertGPS, which is why it can't find them later. Contact me directly thru http://www.expertgps.com/support.asp if you need help with this. Yes, you need to put your GPS in GARMIN mode for waypoint/route/track transfer, and in NMEA mode for Tracking in ExpertGPS. I hope you find ExpertGPS useful.

When you send a list of waypoints to your GPS using software like EasyGPS, your GPS replaces any waypoint that has the same name with the new waypoint. So if your GPS contains ONE TWO THREE and you send THREE FOUR FIVE your GPS will contain ONE TWO THREE FOUR FIVE and THREE will have any new data that you added on the PC.

You're right, I should have said "orthophoto", not "photo". Orthophotos, or DOQQs as they are usually known, are taken specifically for providing a true image of the ground below. They are post-processed to remove any tilt caused by the camera angle. The aerial imagery in ExpertGPS comes from USGS, and was taken for the purpose of making maps. The oblique angle of some of the color imagery out there is good if you want to know how high a building is, but it isn't suitable for high-accuracy mapping due to the distortions you describe.

I trimmed your data down in a text editor so that it looked like this: easting,northing [tab] elevation 291259,4218364 12196 291274,4218257 12235 291374,4218043 12188 291575,4217613 12074 291747,4217450 12051 291884,4217270 11965 291934,4217162 11899 292107,4217017 11826 292316,4216941 11710 292440,4216937 11587 I then opened ExpertGPS, recentered the map on a waypoint in UTM zone 13, and pasted the data from the text editor. ExpertGPS created a new track. I didn't bother with the timestamp data. If you want to try to convert this in your spreadsheet, read the following: ExpertGPS stores timestamps as the number of seconds since January 1st, 1970. Microsoft Excel stores timestamps as the number of days since January 1st, 1900. To display ExpertGPS timestamps in Excel correctly, you will need to apply a formula. That formula is: Excel_time = ExpertGPS_time / 86400 + 25569 Explanation of the values used in the formula 86400 - the number of seconds in one day. (24 hours x 60 minutes x 60 seconds) 25569 - the number of days between January 1, 1900 and January 1, 1970. To convert an ExpertGPS timestamp in cell R2 to an Excel time in cell S2 Enter the following formula in cell S2: =R2/86400+25569 To format the Excel time in cell S2 Click on cell S2 Click Cells on the Format menu. Select Date in the Category list. Select 3/4/97 1:30 PM in the Type list. Note All timestamps in ExpertGPS are in Universal Time (UTC). To display local time in Excel, you will have to add in the appropriate offset. Boston, Massachusetts is 4 hours behind UTC during Daylight Saving Time. (Eastern Daylight Time is UTC-04:00). Divide by 24 to convert to a fraction of a day. The appropriate formula for converting ExpertGPS UTC timestamps to Eastern Daylight Time in Excel is =R2/86400+25569+(-4/24).

As you've learned, Topo! really doesn't want you to be able to use your GPS data outside the program. Not a great way to treat your customers. Show us a few lines of your comma or tab-delimited data. Perhaps there's a way to convert it. The .tpo binary file format is full of all sorts of junk, and I'm not aware of anyone who has tried to decipher it.

I responded to the email you sent to ExpertGPS tech support.

I'm finishing up a few new improvements to ExpertGPS which should make it easier to work with multiple views of your geocaches and GPS data (waypoint lists, maps, elevation profile windows). A new release of ExpertGPS with explicit support for the CSx and the other new models will be available shortly. In the meantime, select the Garmin GPSMAP 60CS model in ExpertGPS.

1. Download EasyGPS (free GPS software for Windows) 2. Open GPX file in EasyGPS 3. Tell EasyGPS you have an eXplorist 500 (Click Preferences on the Edit menu...) 4. Click "Send to GPS" EasyGPS will write the data in your GPX file to your eXplorist, or you can save the file to your hard drive to load in MapSend or transfer to your eXplorist later.

EasyGPS uses one column to display your coordinates. Depending on the coordinate format you use, there may be one, two, or three sets of number that make up the coordinate string. EasyGPS just does an alphabetical sort on the coordinates column, so there's no way to sort by longitude. All of your waypoints are plotted on the right side of the screen, and you can zoom in and select waypoints in a particular strip of longitude there.

EasyGPS now supports USB data transfers of waypoints, routes, and tracks to and from the Garmin GPSMAP 60 Cx, GPSMAP 60CSx, and the other new eTrex receivers. EasyGPS also now supports the nuvi 300 and nuvi 350. Download EasyGPS 2.0.2

EasyGPS 2.0.2 - now with support for Garmin "eXtreme" GPS receivers

All of the functionality in EasyGPS (including the code that transfers data to and from your Garmin or Magellan GPS) was written by me. The current version of EasyGPS will work with the 60 Cx model by selecting the 60C model. I'll be releasing a new version of EasyGPS this week (probably today) that lists all of the 'X' models.

Calculating area in ExpertGPS

ExpertGPS calculates climbing and descending elevation and displays it in the the Track List. (the Elevation column is not shown in this screen shot) ExpertGPS

What are you trying to accomplish by doing this? (What's the final application?) ExpertGPS won't do exactly what you're describing (no way to layer one image over another) but if you're just trying to trace trails or features from one map onto another, ExpertGPS will do this quite easily. You can work with topo maps, aerial photos, and your own maps (scanned trail maps or images) all at the same time. Anything you draw on one instantly appears on all the others. For topos and aerials, you can quickly toggle between the two by typing 't' or 'a'. ExpertGPS lets you draw filled shapes with transparency to highlight fields, hunting plots, boundaries, etc. ExpertGPS download ($59.95 to buy)

Contact me at http://www.expertgps.com/support.asp if you need assistance with ExpertGPS. I'm glad you found it useful.

.loc and .gpx files are formatted to be read by computers. decimal.degrees is the format computers use when exchanging coordinates, because it can be read and interpreted directly as a floating-point number. WGS84 datum is used, because that's the worldwide standard at the moment. Your GPS works the same way - it always transfers data in WGS84, regardless of what it shows on the display. Geocaching.com, EasyGPS, and your computer all use computer algorithms to translate the decimal degrees WGS84 coordinates into deg min.min or whatever your preferred viewing format is.

Your .txf file is actually a Maptech Terrain Navigator track file. You can use a program like ExpertGPS or GPS Babel to do the conversion. Importing a TXF file in ExpertGPS Magellan uses two different types of track files, depending on what GPS receiver you are targetting. In ExpertGPS, select the eXplorist 600 or a Meridian, and when you click Send to GPS, you'll be prompted to save a file that can be read by your GPS.