Ejemplo n.º 1
0
bool wxGISDisplay::CanDraw(OGREnvelope &Env)
{
	if(!IsDoubleEquil(m_dAngleRad, 0.0))
	{
		RotateEnvelope(Env, -m_dAngleRad, m_dRotatedBoundsCenterX, m_dRotatedBoundsCenterY);
	}

	return Env.Contains(m_CurrentBoundsRotated) || m_CurrentBoundsRotated.Contains(Env) || Env.Intersects(m_CurrentBoundsRotated);
}
Ejemplo n.º 2
0
bool wxGISDrawingLayer::Draw(wxGISEnumDrawPhase DrawPhase, ITrackCancel* const pTrackCancel)
{
    wxCHECK_MSG(m_pDisplay, false, wxT("Display pointer is NULL"));

    wxCriticalSectionLocker lock(m_CritSect);

    OGREnvelope stDisplayExtentRotated = m_pDisplay->GetBounds(true);
    OGREnvelope stFeatureDatasetExtentRotated = m_oLayerExtent;

    //rotate featureclass extent
    if (!IsDoubleEquil(m_pDisplay->GetRotate(), 0.0))
    {
        wxRealPoint dfCenter = m_pDisplay->GetBoundsCenter();
        RotateEnvelope(stFeatureDatasetExtentRotated, m_pDisplay->GetRotate(), dfCenter.x, dfCenter.y);//dCenterX, dCenterY);
    }

    //if envelopes don't intersect exit
    if (!stDisplayExtentRotated.Intersects(stFeatureDatasetExtentRotated))
        return false;

    //get intersect envelope to fill vector data
    OGREnvelope stDrawBounds = stDisplayExtentRotated;
    stDrawBounds.Intersect(stFeatureDatasetExtentRotated);
    if (!stDrawBounds.IsInit())
        return false;

    IProgressor* pProgress = NULL;
    if (NULL != pTrackCancel)
    {
        pProgress = pTrackCancel->GetProgressor();
    }

    if (NULL != pProgress)
    {
        pProgress->SetRange(m_aoShapes.size());
    }

    //draw shapes
    for (size_t i = 0; i < m_aoShapes.size(); ++i)
    {
        if (NULL != pProgress)
        {
            pProgress->SetValue(i);
        }

        if (pTrackCancel != NULL && !pTrackCancel->Continue())
            return true;
        if (m_aoShapes[i] != NULL)
        {
            m_aoShapes[i]->Draw(m_pDisplay);
        }
    }

    //draw enumGISShapeStateSelected

    //draw enumGISShapeStateRotated

    //draw enumGISShapeStatePoints

    return true;
}