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Author: KStor | Website: http://

The Model

The model is the way our 3D object is coded, the way we define it mathematically. As I said in the introduction my 3D-engine is used mainly for lines, ie two connected points. Therefore, my model consists of two main parts: the coordinates of the points and the lines to be drawn. Added to this are the eyez, the maximum zoom value and the original zoom.

The points
The points are coded in one long variable called points. They are coded this way:

`"x1,y1,z1Rx2,y2,z2Rx3...Rxn,yn,zn"`

xn, yn and zn are the x, y and z coordinates of point number "n". They contain three digits, so 50 will be coded "050", 6 will be coded "006", etc.
Each point is separated by an "R" to make editing easier.
You must also create a variable named totalpoints that contains the total number n of points.

The lines
The lines are defined by the numbers of their extremeties. For example the line from point 7 to point 11 will be coded "0711". They are stored in a large variable named line:

`"p1p'1Rp2p'2Rp3...Rpmp'm"`

pm is one extremity of the line number m, p'm is the second extremity. Each point is coded by two digits, so point number 2 will be coded "02" and point 11 will become "11". You'll notice that as a result, my engine only accepts 99 points. If you need more, it's easy to change. However too many points will slow it down quite a bit (I haven't tried).
You must also create a variable named totallines that contains the total number m of lines.

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