Bílý vrch
icon TrekBuddy
www.trekbuddy.net
Outdoor companion.
  • internal / bluetooth / simulator GPS
  • offline raster maps
  • smart GPX / raw NMEA logs
  • waypoints and simple navigation
  • custom views
  • MIDP and Symbian phones
  • Blackberry
  • Android
Visit wiki to see all features, guides and howtos. Project tracker.
Trekbuddy is on Github now

Partners:    (Polish/Polski)(Polski) Compass mapy      (Polish/Polski)(Polski) Galileos mapy      (Polish/Polski)(Polski) CartoMedia      (Czech/Èesky)(Èesky) Eaglesoft trasy      (Polish/Polski)(Polski) ExpressMap     

 FAQFAQ   SearchSearch   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
hecl calculation kindly request

 
Post new topic   Reply to topic    TrekBuddy Forum Index -> Themes
View previous topic :: View next topic  
Author Message
pan mietek



Joined: 01 Jul 2008
Posts: 110

PostPosted: Thu Jun 24, 2010 8:42 am    Post subject: hecl calculation kindly request Reply with quote

hi
im not familiar with hecl and have need to use some calculation, so i kindly request someone to create appropriate hecl file for further use.

The problem: TB has wpt-eta variable which calculates estimated time of arrival. when you travel windy way, TB makes some big misscalculations in the ETA.
My conception is to calculate ETA using average VMG (velocity make goood) and distance left to the waypoint.
The problem is with average VMG which is unavailable as far.
Would you make some simple hecl file that caclulates that value, so it can bie used in various cms files?

regards
pm
Back to top
View user's profile Send private message
Bas



Joined: 05 May 2009
Posts: 344
Location: Lodz, PL

PostPosted: Thu Jun 24, 2010 11:11 am    Post subject: Reply with quote

Take a look at:
http://www.trekbuddy.net/forum/viewtopic.php?p=30185#30185
Quote:
New function: ETE and ETA.
ETE and ETA come from moving speed, not from actual speed!
You can compare this calculations against higher speed just "tap 2"...
Back to top
View user's profile Send private message
pan mietek



Joined: 01 Jul 2008
Posts: 110

PostPosted: Thu Jun 24, 2010 12:22 pm    Post subject: Reply with quote

thx for the answer.
I'm not really sure if I understand what U mean.
What is the moving speed you mentioned?
ETE and ETA are new variables introduced by you in the hcl file?
Are they based on the average speed in the target direction?


pm
Back to top
View user's profile Send private message
Bas



Joined: 05 May 2009
Posts: 344
Location: Lodz, PL

PostPosted: Thu Jun 24, 2010 12:37 pm    Post subject: Reply with quote

> What is the moving speed you mentioned?
Its is like spd-avg-auto -> "auto" average speed (average "moving" speed) but it's calculated in hecl, not from TB.

> ETE and ETA are new variables introduced by you in the hcl file?
Yes, they are.
Back to top
View user's profile Send private message
pan mietek



Joined: 01 Jul 2008
Posts: 110

PostPosted: Thu Jun 24, 2010 12:50 pm    Post subject: Reply with quote

Yeah, seems this is what i'm lookin for.
2 more questions:
1. Are ETE and ETA based on the average speed in the target direction or just on average speed?

2. is there any chance for this cms in 320x240 res?

pm
Back to top
View user's profile Send private message
jdjani



Joined: 09 Apr 2010
Posts: 6
Location: Hungary

PostPosted: Thu Jun 24, 2010 2:59 pm    Post subject: Reply with quote

Dear BAS

MaleSmurf not available

Can you edit the "240x320 MaleSmurf the 9-panel HECL CMS 'calculation of the WPT-ETA the HELC file?

We use many


Thank JDJani Hungary Nokia 5310 + LD-3W
Back to top
View user's profile Send private message
Bas



Joined: 05 May 2009
Posts: 344
Location: Lodz, PL

PostPosted: Thu Jun 24, 2010 9:54 pm    Post subject: Reply with quote

I try to improve some calculations now because direct distance isn't real distance most of the time:

Back to top
View user's profile Send private message
pan mietek



Joined: 01 Jul 2008
Posts: 110

PostPosted: Fri Jun 25, 2010 8:23 am    Post subject: Reply with quote

hi
if there's no proper routing you'll get no exact results.
That's why i suggest to use the direct distance and average speed in target direction.
Using TB in trkking and other open area activities it will give ETA the closest to the truth. (IMO)

pm
Back to top
View user's profile Send private message
Bas



Joined: 05 May 2009
Posts: 344
Location: Lodz, PL

PostPosted: Fri Jun 25, 2010 7:08 pm    Post subject: Reply with quote

funny Wink

pan mietek wrote:
if there's no proper routing you'll get no exact results
There is no way to calculate exact ETA/ETE even on maps with autorouting Laughing

pan mietek wrote:
That's why i suggest
No way.
Thank you very much Rolling Eyes

ETA/ETE is an estimation... always.
Direct distance (and calculation) is the simplest way and it is maximum possible simplification quite good on a beach.
You can take into consideration the angle between direct course and actual one. You should comply the wpt-dist...
Back to top
View user's profile Send private message
pan mietek



Joined: 01 Jul 2008
Posts: 110

PostPosted: Mon Jun 28, 2010 10:43 am    Post subject: Reply with quote

Bas wrote:


pan mietek wrote:
if there's no proper routing you'll get no exact results
There is no way to calculate exact ETA/ETE even on maps with autorouting Laughing


I can agree, as this is my own statement made just abovoe your post. If I have written it, i've evidently knew that.

Bas wrote:

ETA/ETE is an estimation... always.
Direct distance (and calculation) is the simplest way and it is maximum possible simplification quite good on a beach.
You can take into consideration the angle between direct course and actual one. You should comply the wpt-dist...


heh. wpt-dist is OK, if you use velocity made good. VMG includes the angle factor by definition. That's why the time estimation could be fair enough calculated using the direct distance, if only u use right kid of speed (VMG instead just actual speed).
My conception is to use average VMG to avoid the situation when you stop to take the reading, your actual VMG drops to zero so ETA grows up rapidly.

Ok, let's quit this fruitless conversation, perhaps someone else could solve my problem, 'cause i can't stand the impression, that instead of chatting here i could roll my sleeves up, learn the hecl and write the code by myself.

pm
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    TrekBuddy Forum Index -> Themes All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group