These are macros used when working with Track View to scale into and out of screen space. More...

Macros
#define	TimeToScreen(t, scale, scroll)
	Given a TimeValue t, if you have the time scale and time scroll factors, this macro returns the screen space X for that time.
#define	ScreenToTime(s, scale, scroll)
	Given a screen coordinate s, if you have the scale and scroll factors, this macro will return a TimeValue for that screen position.
#define	ValueToScreen(v, h, scale, scroll)
	Given a Value v, if you have the value scale and value scroll factors, this macro returns the screen space Y for that value.
#define	ScreenToValue(s, h, scale, scroll)
	Given a screen coordinate s, if you have the scale and scroll factors, this macro will return a value for that screen position.
#define	ScaleAboutOrigin(val, origin, scale)

Detailed Description

These are macros used when working with Track View to scale into and out of screen space.

Macro Definition Documentation

Value:

(int(floor((t)*(scale)+0.5)) - (scroll))

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Definition generics.inl:260

MAXMEM_EXTERN_C UtilExport int(__cdecl *MAX_heapchk)(void)

Given a TimeValue t, if you have the time scale and time scroll factors, this macro returns the screen space X for that time.

Value:

((int)floor((s)/(scale) + (scroll)/(scale)+0.5))

Given a screen coordinate s, if you have the scale and scroll factors, this macro will return a TimeValue for that screen position.

Value:

(h-int(floor((v)*(scale)+0.5)) - (scroll))

Given a Value v, if you have the value scale and value scroll factors, this macro returns the screen space Y for that value.

Value:

((float(h)-(float(s)+float(scroll)))/(scale))

Given a screen coordinate s, if you have the scale and scroll factors, this macro will return a value for that screen position.

Value:

((((val)-(origin))*(scale))+(origin))