Method getProjectOffset

Engine/OfxImageEffectInstance.cpp:322–338

The offset of the current project in canonical coordinates. The offset is related to the kOfxImageEffectPropProjectSize and is the offset from the origin of the project 'subwindow'. For example for a PAL SD project that is in letterbox form, the project offset is the offset to the bottom left hand corner of the letter box. The project offset is in canonical coordinates.

// project offset is the offset to the bottom left hand corner of the letter box. The project
// offset is in canonical coordinates.
void
OfxImageEffectInstance::getProjectOffset(double & xOffset,
                                         double & yOffset) const
{
    Format f;

    _ofxEffectInstance.lock()->getApp()->getProject()->getProjectDefaultFormat(&f);
    RectI pixelF;
    pixelF.x1 = f.x1;
    pixelF.x2 = f.x2;
    pixelF.y1 = f.y1;
    pixelF.y2 = f.y2;
    RectD canonicalF;
    pixelF.toCanonical_noClipping(0, f.getPixelAspectRatio(), &canonicalF);
    xOffset = canonicalF.left();
    yOffset = canonicalF.bottom();
}

// The extent of the current project in canonical coordinates.
// The extent is the size of the 'output' for the current project. See ProjectCoordinateSystems