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gachbash
Occasional Visitor
Joined: Feb 08, 2010
Posts: 14
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 Posted: Fri Feb 12, 2010 7:49 pm Post subject: Question about DIMKA SKIN Settings - Route Options |
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Question about DIMKA SKIN Settings - Route Options
Good Day
I am using the Dimka skin.
in Settings--Route Planning--Options there is (in the Route Options) a slide bar named "Method".
It can mooved between Fast and Optimal.
Do you know how it works and what is its meaning?
Thank you! |
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M8TJT
The Other Tired Old Man
Joined: Apr 04, 2006
Posts: 10118
Location: Bexhill, South Sussex, UK
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| Posted: Fri Feb 12, 2010 7:55 pm Post subject: |
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| In my experience of IGO, the method control makes little difference. I have not realy examined any long routes using 'Fast' because using 'Optimal' calculates routes pretty quickly. I suspect, but don't know, that 'Optimal' uses a more complex algorythm to wotk out the route, but as I said, I have no firm evidence of this. Perhaps Linknet, our resident IGO skin expert, will pop up in a bit and throw some more light on the subject. |
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gachbash
Occasional Visitor
Joined: Feb 08, 2010
Posts: 14
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| Posted: Fri Feb 12, 2010 8:30 pm Post subject: Dimka skin- method slider |
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| M8TJT wrote: | | In my experience of IGO, the method control makes little difference. I have not realy examined any long routes using 'Fast' because using 'Optimal' calculates routes pretty quickly. I suspect, but don't know, that 'Optimal' uses a more complex algorythm to wotk out the route, but as I said, I have no firm evidence of this. Perhaps Linknet, our resident IGO skin expert, will pop up in a bit and throw some more light on the subject. |
You are Fassst M8TJT!!
I guess you are right.
I made some tests and when distance is short (200 km) the Optimal method is quick as the Fast method. When Distance is long and complicate (1500 km) the Fast method takes half the time (to calculate)of the Optimal method. I have no idea yet about the route calculated... Is the Optimal method give "better" route?
I think better be on the safe side and take the Optimal method. |
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M8TJT
The Other Tired Old Man
Joined: Apr 04, 2006
Posts: 10118
Location: Bexhill, South Sussex, UK
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| Posted: Fri Feb 12, 2010 9:31 pm Post subject: Re: Dimka skin- method slider |
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| gachbash wrote: | | Is the Optimal method give "better" route? |
If you find out, please let us know.  |
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gachbash
Occasional Visitor
Joined: Feb 08, 2010
Posts: 14
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| Posted: Sat Feb 13, 2010 7:39 am Post subject: Re: Dimka skin- method slider |
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| M8TJT wrote: | | gachbash wrote: | | Is the Optimal method give "better" route? |
If you find out, please let us know. |
Just one more detail:
The "Route Method" is translated to "correctness=" in the system.ini file in the [route] section
min 50 (FAST)
max 100 (OPTIMAL)
Guess default is 80 (?) |
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linknet
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Joined: May 05, 2005
Posts: 872
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| Posted: Sat Feb 13, 2010 10:30 am Post subject: |
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I don't see the point in adding what are now deprecated settings to some of these skins, it only serves to confuse users.
From memory, so I might not be quite accurate on this, I understand that the default setting for "correctness" is 80 and it determines the number of iterations that the route finding algorithm uses to arrive at the final route. It doesn't change the type of routing only the correctness of that particular type of route calculation. It was originally included to cater for calculating longer routes on very slow devices. However for shorter routes (I can't remember the cut off value) the default value is always used irrespective of the "correctness" setting. With the advent of faster devices it wasn't necessary to use lower values, and values higher than 80 make marginal difference apart from increasing the calculation time, so the setting was removed from the menus.
linknet |
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M8TJT
The Other Tired Old Man
Joined: Apr 04, 2006
Posts: 10118
Location: Bexhill, South Sussex, UK
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| Posted: Sat Feb 13, 2010 10:57 am Post subject: |
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@Linknet.
Most elegant explanation. That would be my guess as well, but could not express it so well |
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gachbash
Occasional Visitor
Joined: Feb 08, 2010
Posts: 14
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| Posted: Sun Feb 14, 2010 12:49 pm Post subject: Thank you! |
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| linknet wrote: | I don't see the point in adding what are now deprecated settings to some of these skins, it only serves to confuse users.
From memory, so I might not be quite accurate on this, I understand that the default setting for "correctness" is 80 and it determines the number of iterations that the route finding algorithm uses to arrive at the final route. It doesn't change the type of routing only the correctness of that particular type of route calculation. It was originally included to cater for calculating longer routes on very slow devices. However for shorter routes (I can't remember the cut off value) the default value is always used irrespective of the "correctness" setting. With the advent of faster devices it wasn't necessary to use lower values, and values higher than 80 make marginal difference apart from increasing the calculation time, so the setting was removed from the menus.
linknet |
So many parameters for this excellent software... |
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