Coords, zxy or xyz ?

[2briards]

Just wondering.
I want to make radar like stuff in my project and had a look at http://www.ownedcore.com/forums/worl...116-32bit.html (3D WoW Radar for 6.03.19116 32bit)

What I do not understand is why coordinates are read here as Z - X - Y

typedef struct WoWPosition{
	float z;
	float x;
	float y;
	char blank[4];
	float angle;
} WoWPosition;

typedef struct WoWCamera{
	float z;
	float x;
	float y;
	float zAngle;
	float xAngle;
	float yAngle;
} WoWCamera

case WOW_UNIT:;
		Mem_ReadToBuff(objAddress+WOW_UNITPOSOFFSET,&obj->pos,sizeof(WoWPosition));
		break;
	case WOW_OBJ:;
		Mem_ReadToBuff(objAddress+WOW_OBJPOSOFFSET,&obj->pos,sizeof(WoWPosition));
		break;
	}

While I always thought they were stored in X - Y - Z format.

Anyone willing to explain?

Thanks

[TOM_RUS]

They are in X,Y,Z order.

[2briards]

They are in X,Y,Z order.

Thanks Tom.

So how can this program work correctly if they are swapped?:confused:

[namreeb]

It just depends how you use them. You can call X Z if you want. Who cares?

[Jadd]

WoW coordinates work like so:

X = East/West
Y = North/South
Z = Up/Down

Like namreeb said, the name is generally irrelevant. If you're using the coordinates in 3D functions (DirectX functions too, I think,) you may have to use the Z value in the place of Y, and vice versa.

[ioctl]

Some people are really hung up on X being east and Y being up, and they use their preferred names for the axes. This only leads to tears. Just accept the native coordinate space.

[Jadd]

Some people are really hung up on X being east and Y being up, and they use their preferred names for the axes. This only leads to tears. Just accept the native coordinate space.

If you ask me, Blizzard has got it right. I mean, the axes of two dimensions are X and Y, being east/west and north/south respectively. When transforming coordinates to three dimensions, you'd think they would keep the rules the same.. right?

[2briards]

WoW coordinates work like so:

X = East/West
Y = North/South
Z = Up/Down

Like namreeb said, the name is generally irrelevant. If you're using the coordinates in 3D functions (DirectX functions too, I think,) you may have to use the Z value in the place of Y, and vice versa.

Thanks for all the reactions

I'm used to the above "thinking" so I stick to that.