Pikes Peak Climb Track "How-to"

[zaxxon]

Updated scripts, example projects, tutorials, etc. can be found here

http://btbtracks-rbr.foroactivo.com/...orial-t131.htm

French language videotutorials:
http://www.mediafire.com/?tspub5ub5ncqe

liquido's videotutorial about the gmsh step (spanish with english subtitles):
http://www.mediafire.com/file/fcgfy67999cdal3/Tuto
http://www.mediafire.com/?7k5qd59cqbbyi4e

You can also visit parlesportes' web site:http://www.plpcreation.tonsite.biz
http://www.plpcreation.tonsite.biz/index.php/trace/btb/methode-zaxxon

 

[Anessen]

Hello
I get this error when trying to import my KML file...

> importakml('main.kml',0.75)
Leyendo el fichero main.kml
_
?
x
m
l
ECHO is on.
v
e
r
s
i
o
n
=
\"
1
Cerrando el fichero
0 valores
warning: division by zero
error: operator *: nonconformant arguments (op1 is 1x2, op2 is 0x0)
error: evaluating binary operator `*' near line 62, column 35
error: evaluating argument list element number 1
error: evaluating argument list element number 1
error: evaluating assignment expression near line 62, column 12
error: called from `importakml' in file `C:\project\scripts\importakml.m'

 

[Rubinhofan]

maybe you forgot to delete the textlines in the kml at the beginning and at the end of this file. Only the numbers must be in the kml.

 

[zaxxon]

I agree with rubinhofan. You must delete all the text inside the kml file and keep only the coordinates: list of longitude,latitude,altitude values separated with commas.

importakml shows on screen the characters read from the file until a digit is found.
Text ?xml version=\"1 should not be there.

 

[Anessen]

that makes sense, sorted

 

[Rubinhofan]

I finished the process but it doesn´t work. http://rapidshare.com/files/331261732/Venue.rar.html

 

[zaxxon]

Using rapidhare is a waste of time...
Only premium users can download the file.

 

[lordpantsington]

? I am not a premium user, yet I dl from rapidshare all the time. So I have to wait a little bit.

 

[Rubinhofan]

Yes, but sometimes in the evening there are not enough free slots for non premium users.

Zaxxon, I´ve found the mistake. I´ve forgotten to import the wp xpack
The only problem now is the beginning and the end of the road. There are missing triangles in the terrain.

I have an update for your tutorial "Step 1. Getting elevation data"

Introduction: I wanted to create a european track, so I used google earth with btblofty.
(3D Route Builder has a limitation of 500 Waypoints in its free version)
The problem was the slowlyness of btblofty. It took 3h with google earth for my grid.
I´ve found a much faster way and you only need google earth.

1.0 - open google earth and draw your route (the button on top of the window with the 3 circles)
- save it as *.kml

1.1 - open http://www.gpsvisualizer.com/elevation and load your *.kml
- click on "convert & add elevation" as *.gpx
(you can check your elevation by clicking on "draw elevation profile")
- ricght mouse click on the file (numbers) and save it

1.2 - open google earth again and load the *.gpx-file
- save it as *.kml

-> now you have a *.kml-file with elevation data
-> go on with zaxxon´s tutorial

If you have created the gridXXX.kml repeat steps 1.1 and 1.2
(it is much faster, only a few seconds to get the elevation for the grid)

 

[zaxxon]

You can use that way, but I think Google Earth can give data with better resolution. 90m may be enough for the second grid, the one used far from the road, but not for the first grid.
Nevertheless, thanks for sharing another way of getting kmls elevated.

 

[Rubinhofan]

Ok, only one problem in my project at the beginning and end of the road. How can I fix that ?

 

[zaxxon]

Your special stage shouldn't start near of the beginning of the road, so this hole should'n be visible because it shouldn't be visible that the road has a beginning or an end. Nevertheless, if you want to delete the hole just create a new triangle with BTB tools (there is one tool for creating triangles dragging terrain limits) and move the anchors the best you can so the hole is not seen. A triangle can't be linked to both sides of the road, so one side of the new triangle will be linked but not the other.

 

[Rubinhofan]

ok, thanks for your help, zaxxon.

 

[zaxxon]

I update the first message of the thread with a link to a french site that talks about the method.

 

[Kennett Ylitalo]

Too bad the http://www.gpsvisualizer.com/elevation is of no use for use in for ex Finland... It won't generate altitudes between 60 and 90 degrees.. So no way to make Finnish track, unless it resides south of Helsinki... And since there is only 27km of land left in the whole country south of 60deg lat... I'm screwed.

 

[zaxxon]

For Finland I am quite sure you can get LiDAR data almost at no cost. Did you try that?

 

[Johannes Rojola]

Free Finnish LiDAR data will be first time available next spring. And it is very accurate and high resolution.

 

[zaxxon]

Thanks Rojola. But now it is possible to buy this data, and with 10-20 euros at most you can have enough data for a track. Am I wrong?

 

[Johannes Rojola]

Yes that is true, but I'm waiting for free stuff

 

[Kennett Ylitalo]

Same here.... Now that i found the hurdle of Finnish tracks, no data.. anywhere. But, i remembered something... I had a dream of building Dades Gorge and now it can be possible.. Just a few teasers:

It may be impossible but at least i have a change now.

EDIT: Once i saw this some time ago, i was hooked (turn audio down..)... http://www.youtube.com/watch?feature=player_detailpage&v=_mGWl69BJiE#t=155s

 

[zaxxon]

parlesportes shares with us his great videotutorials (french language):

http://www.mediafire.com/?tspub5ub5ncqe