OOJoystickSplineSegment Class Reference

Inheritance diagram for OOJoystickSplineSegment:

Collaboration diagram for OOJoystickSplineSegment:

Instance Methods
(id)	- init
(id)	- initWithData:right:
(id)	- initWithData:right:gradientleft:
(id)	- initWithData:right:gradientright:
(id)	- initWithData:right:gradientleft:gradientright:
(id)	- copyWithZone:
(double)	- start
(double)	- end
(double)	- value:
(double)	- gradient:

Class Methods
(id)	+ segmentWithData:right:
(id)	+ segmentWithData:right:gradientleft:
(id)	+ segmentWithData:right:gradientright:
(id)	+ segmentWithData:right:gradientleft:gradientright:

Private Attributes
double	start
double	end
double	a [4]

Detailed Description

Definition at line 33 of file OOJoystickProfile.m.

Method Documentation

copyWithZone:

- (id) copyWithZone:

(NSZone *)

zone

Definition at line 39 of file OOJoystickProfile.m.

{
    OOJoystickSplineSegment *copy = [[OOJoystickSplineSegment allocWithZone: zone] init];
    copy->start = start;
    copy->end = end;
    copy->a[0] = a[0];
    copy->a[1] = a[1];
    copy->a[2] = a[2];
    copy->a[3] = a[3];
    return copy;
}
 

end

- (double) end

gradient:

- (double) gradient:

(double)

t

Definition at line 39 of file OOJoystickProfile.m.

{
    return a[1]+(2*a[2] + 3*a[3]*x)*x;
}
 

init

- (id) init

Definition at line 39 of file OOJoystickProfile.m.

{
    if ((self = [super init]))
    {
        start = 0.0;
        end = 1.0;
        a[0] = 0.0;
        a[1] = 1.0;
        a[2] = 0.0;
        a[3] = 0.0;
    }
    return self;
}
 

initWithData:right:

- (id) initWithData:		(NSPoint)	left
right:		(NSPoint)	right

Definition at line 39 of file OOJoystickProfile.m.

{
    double dx = right.x - left.x;
    if (dx <= 0.0)
    {
        return nil;
    }
    if ((self = [super init]))
    {
        start = left.x;
        end = right.x;
        a[1] = (right.y - left.y)/dx;
        a[0] = left.y-a[1]*left.x;
        a[2] = 0.0;
        a[3] = 0.0;
    }
    return self;
}
 

initWithData:right:gradientleft:

- (id) initWithData:		(NSPoint)	left
right:		(NSPoint)	right
gradientleft:		(double)	gradientleft

Definition at line 39 of file OOJoystickProfile.m.

{
    double dx = right.x - left.x;
    if (dx <= 0.0)
    {
        return nil;
    }
    if ((self = [super init]))
    {
        start = left.x;
        end = right.x;
        a[0] = left.y*right.x*(right.x - 2*left.x)/(dx*dx) + right.y*left.x*left.x/(dx*dx) - gradientleft*left.x*right.x/dx;
        a[1] = 2*left.x*(left.y-right.y)/(dx*dx) + gradientleft*(left.x+right.x)/dx;
        a[2] = (right.y-left.y)/(dx*dx) - gradientleft/dx;
    }
    return self;
}
 

initWithData:right:gradientleft:gradientright:

- (id) initWithData:		(NSPoint)	left
right:		(NSPoint)	right
gradientleft:		(double)	gradientleft
gradientright:		(double)	gradientright

Definition at line 39 of file OOJoystickProfile.m.

{
    double dx = right.x - left.x;
    if (dx <= 0.0)
    {
        return nil;
    }
    if ((self = [super init]))
    {
        start = left.x;
        end = right.x;
        a[0] = (left.y*right.x*right.x*(right.x-3*left.x) - right.y*left.x*left.x*(left.x-3*right.x))/(dx*dx*dx) - (gradientleft*right.x + gradientright*left.x)*left.x*right.x/(dx*dx);
        a[1] = 6*left.x*right.x*(left.y-right.y)/(dx*dx*dx) + (gradientleft*right.x*(right.x+2*left.x) + gradientright*left.x*(left.x+2*right.x))/(dx*dx);
        a[2] = 3*(left.x+right.x)*(right.y-left.y)/(dx*dx*dx) - (gradientleft*(2*right.x+left.x)+gradientright*(2*left.x+right.x))/(dx*dx);
        a[3] = 2*(left.y-right.y)/(dx*dx*dx) + (gradientleft+gradientright)/(dx*dx);
    }
    return self;
}
 

initWithData:right:gradientright:

- (id) initWithData:		(NSPoint)	left
right:		(NSPoint)	right
gradientright:		(double)	gradientright

Definition at line 39 of file OOJoystickProfile.m.

{
    double dx = right.x - left.x;
    if (dx <= 0.0)
    {
        return nil;
    }
    if ((self = [super init]))
    {
        start = left.x;
        end = right.x;
        a[0] = (left.y*right.x*right.x + right.y*left.x*(left.x-2*right.x))/(dx*dx) + gradientright*left.x*right.x/dx;
        a[1] = 2*right.x*(right.y-left.y)/(dx*dx) - gradientright*(left.x+right.x)/dx;
        a[2] = (left.y-right.y)/(dx*dx) + gradientright/dx;
    }
    return self;
}
 

segmentWithData:right:

+ (id) segmentWithData:		(NSPoint)	left
right:		(NSPoint)	right

Definition at line 39 of file OOJoystickProfile.m.

{
    OOJoystickSplineSegment *segment = [[OOJoystickSplineSegment alloc] initWithData: left right:right];
    return [segment autorelease];
}
 

segmentWithData:right:gradientleft:

+ (id) segmentWithData:		(NSPoint)	left
right:		(NSPoint)	right
gradientleft:		(double)	gradientleft

Definition at line 39 of file OOJoystickProfile.m.

{
    OOJoystickSplineSegment *segment = [[OOJoystickSplineSegment alloc] initWithData: left right:right gradientleft:gradientleft];
    return [segment autorelease];
}
 

segmentWithData:right:gradientleft:gradientright:

+ (id) segmentWithData:		(NSPoint)	left
right:		(NSPoint)	right
gradientleft:		(double)	gradientleft
gradientright:		(double)	gradientright

Definition at line 39 of file OOJoystickProfile.m.

{
    OOJoystickSplineSegment *segment = [[OOJoystickSplineSegment alloc] initWithData: left right:right gradientleft:gradientleft gradientright:gradientright];
    return [segment autorelease];
}
 

segmentWithData:right:gradientright:

+ (id) segmentWithData:		(NSPoint)	left
right:		(NSPoint)	right
gradientright:		(double)	gradientright

Definition at line 39 of file OOJoystickProfile.m.

{
    OOJoystickSplineSegment *segment = [[OOJoystickSplineSegment alloc] initWithData: left right:right gradientright:gradientright];
    return [segment autorelease];
}
 

start

- (double) start

value:

- (double) value:

(double)

t

Definition at line 39 of file OOJoystickProfile.m.

{
    return a[0] + (a[1] + (a[2] + a[3]*x)*x)*x;
}
 

Member Data Documentation

a

- (double a[4])

private

Definition at line 39 of file OOJoystickProfile.m.

end

- (double) end

private

Definition at line 38 of file OOJoystickProfile.m.

start

- (double) start

private

Definition at line 37 of file OOJoystickProfile.m.

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The documentation for this class was generated from the following file:

• src/Core/OOJoystickProfile.m