Mac Dev Center Mac OS X Reference Library Apple Applications: Final Cut Pro/Final Cut Express FxPlug Reference

Introduction

Defines the methods the host application provides to manage conversions between various OnScreen coordinate spaces.

Methods

-convertPointFromSpace:fromX:fromY:toSpace:toX:toY:

Converts a position from object space to canvas space.

Converts a position from object space to canvas space.

- (void)convertPointFromSpace:(FxDrawingCoordinates)fromSpace fromX:(double)fromX fromY:(double)fromY toSpace:(FxDrawingCoordinates)toSpace toX:(double *)toX toY:(double *)toY;

Parameters

fromSpace

The coordinate space to convert from.

fromX

X coordinate of the position to convert from.

fromY

Y coordinate of the position to convert from.

toSpace

The coordinate space to convert to.

toX

Pointer for the x coordinate of the computed position.

toY

Pointer for the y coordinate of the computed position.