How to delete/remove magic data from a .dat file?

Can anybody tell me how do I delete/remove magic data from a .dat file? I can certainly insert one with CMagic, but how do I delete it, so that in GP4 Builder it says 'This file contains no magic data.'

Thanks in advance.

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Another, track making related question: how do I get real elevations for a track? I can make assumptions for a track like Paul Ricard, but I currently make one from scratch, which has a lot of elevations.

Also, sorry that I haven't posted this in the track making thread, but I did not received any kind of answer the last time I wrote there. I mean, I know probably nobody knew an answer to that particular question, but still an 'I don't know.' would have been better than nothing.

Thank you guys .

Im not sure its possible to "delete" the magic data as such, although maybe there is an option in gp4builder, but im not expert on that side. I know that in tsm, you can return the magic data too its defaults, including all the original tracks, but apart from that im not sure.

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Atticus. Wrote:
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> Can anybody tell me how do I delete/remove magic
> data from a .dat file? I can certainly insert one
> with CMagic, but how do I delete it, so that in
> GP4 Builder it says 'This file contains no magic
> data.'
>
> Thanks in advance.
>

well ... in my opinion, if the gp4builder tool says that this .DAT contains no magicdata is because there are no data to delete, right?

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@phantaman : I assume he means he want that a .dat with magic data was cleaned up from it in order to appear with no magic data in GP4Builder.

@Atticus:
Deleting Magic Data : that's a good question and it seems nobody ever thought about removing them from a .dat as you can't do it in Cmagic nor in GP4Builder. I will add this feature to the to-do list.

Getting real elevations : If you're asking where on the net you can get track altitudes, I have no clue about it. If you want to tweak elevations in GP4Builder, you can have a look at Tools Menu\Track Profiler that was designed for this.

BTW I read your post in the track dedicated thread (as I'm reading all of the new posts in this thread) but I had no answer about your problem. the unused setting was named this way by me because I didn't see any effect in game of this value (but I could be wrong or maybe tested in the wrong circonstancies). I just notice you told about zig zag ccline, if it is that way, then the best thing to do is to remove the whole cc-line (deleting all but firsts sections). Track must load even with 1-2 sections as long as they follow the track layout. then you can create a new one that fit the whole track. And a last note : All I know about Shiftangle is in the user guide as I'm not a .dat editing specialist myself. So I can't tell you more about it.

I hope it will help you some way.

Thank you very much Laurent for all the remarks. I appreciate them.

I asked about the deletion of magic data, because I had the common issue of having a custom track with a shorter bumptable than the one it is replacing, and it only loads with GpXPatch. I know it's strange, but I like to run the game without it. I thought that if I can remove the magic data allowing GP4 to use its default, it could load in properly. I could be wrong, of course. It is actually Pedro's Kyalami.

Elevations are still something to be work on, I currently do a Brands Hatch 195?-1975 layout from scratch. It will only be a beta, i. e. its whole 3D mesh is ignored, as my skills in 3D are zero, I just do the .dat conversion, much like Pedro did at his Österreichrings and Interlagos. I don't know yet if I will publish it. I don't want to publish half-baked works, although I would allow anybody to build a proper 3D mesh to it.

As for the CC-line zig zag, it was hard, but I had to scrap the whole things. I could not work around making a CC-line practically blind. I did the track modifications again, made the compromise of not moving the initial sector and it works well now.