Solved

collision detection

Posted on 2000-04-19
6
395 Views
Last Modified: 2010-04-04
how do i detect collision between helicopter and very large  terrain which contains many mountains in direct3d using delphix.
0
Comment
Question by:f15iaf
6 Comments
 
LVL 7

Expert Comment

by:Motaz
ID: 2730685
What did you mean by collision and meshes?
0
 
LVL 5

Expert Comment

by:TheNeil
ID: 2730702
It all depends on how complex your objects are and how many dimensions you are dealing with. A simple solution would be to treat everything as a sphere and then check to see if object 1's 'sphere' intersects with objects 2's.

e.g. Assume that object 1 can be encompased by a sphere of radius 5 and that object 2 can be encompassed by a sphere of radius 10. To check if the two have collided, check the distance between the two (from the centre points) and if it's less than the two radii combined then they have collided. Collision := (iDist <= (r1 + r2))
Calculating iDist can be done with simple Pythagorus: iDist := SQRT(SQR(x1 - x2) + SQR(y1 - y2)) This can be extended to 3 dimensions using the 3D version but I can't remember it off the top of my head

Hope that helps

The Neil =:)
0
 
LVL 3

Author Comment

by:f15iaf
ID: 2730706
Edited text of question.
0
Master Your Team's Linux and Cloud Stack!

The average business loses $13.5M per year to ineffective training (per 1,000 employees). Keep ahead of the competition and combine in-person quality with online cost and flexibility by training with Linux Academy.

 
LVL 3

Author Comment

by:f15iaf
ID: 2730740
Edited text of question.
0
 
LVL 5

Expert Comment

by:TheNeil
ID: 2730747
That's right, change the question after I give one of my better solutions

The Neil =>(
0
 
LVL 4

Accepted Solution

by:
jeurk earned 15 total points
ID: 2731350
hello,
this is the best thing you will find :
http://users.cybercity.dk/~bbl6194/delphi3dx.htm 
it has a component for delphiX that does exactly what you want...
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Machine not responding during CopyFile() 3 98
When I am typing into a TEdit last word repeats 7 132
Downloading email attachments 2 73
Delphi: Connect to running MS Outlook 4 83
The uses clause is one of those things that just tends to grow and grow. Most of the time this is in the main form, as it's from this form that all others are called. If you have a big application (including many forms), the uses clause in the in…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…
Finds all prime numbers in a range requested and places them in a public primes() array. I've demostrated a template size of 30 (2 * 3 * 5) but larger templates can be built such 210  (2 * 3 * 5 * 7) or 2310  (2 * 3 * 5 * 7 * 11). The larger templa…

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question