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Newcomers DBPro Corner / 3D radar - star wraith like -using Ezrotate

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Macrosii
20
Years of Service
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Joined: 31st Mar 2004
Location: Essex, UK
Posted: 9th May 2004 04:25
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I know this has been asked before but cant find what.

I want to use a sphere and place small objects in the sphere to be used as a ship radar.
Ok I can get the distance between my craft and other objects in space. I can also get the angles between the objects and my craft with the dot product. What I cant work out is how to use this to get the real world x,y,z to position a marker within the radar shpere representing the relative position of the object to my ship.

Any pointers.
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Macrosii
20
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Joined: 31st Mar 2004
Location: Essex, UK
Posted: 10th May 2004 22:36
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Sorted.

Got it working. Not to hard with Ezrotate.
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BearCDPOLD
21
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Joined: 16th Oct 2003
Location: AZ,USA
Posted: 11th May 2004 03:02
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What is this....Ezrotate? Sounds awesome, I know I look pretty dumb not knowing, but just out of curiosity....

Crazy Donut Productions, Current Project: KillZone
Web Site Button Does Not Work, Visit Here: http://www.geocities.com/crazydonutproductions/index.html
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Macrosii
20
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Joined: 31st Mar 2004
Location: Essex, UK
Posted: 11th May 2004 14:51
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Ezrotate is an excellent DLL add in for DBPro. It adds extra commands that make the whole process of local axis to global axis rotations much easier. There are a number of threads here on its use.
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DBasic Khan
20
Years of Service
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Joined: 3rd Dec 2003
Location: Alpha Quadrent, Sector 1,1 SOL SYS
Posted: 11th May 2004 21:59
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Im not quite sure if its what u need but i would use a... crap i cant remeber what u call them. Its on the tip of my tounge. Its jsut basic math:
a over b = c over d

for example:

1 2
=
2 x

to solve u need to cross multiply so u get 4=x (2*2)=(1*x)
im not quite sure if this will help but there it is.

AKA Drunken French Munk (the name i use at home)
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