private OpenGlScreenNormalizedRect GetCurrentDisplayNormalizedRect(double parPosX, double parPosY, double parWidth,
double parHeight)
{
double x1 = Math.Max(DisplayViewportGlUnitsX1 +
OpenGlUtil.GetNormalizedWidthCoordValue(parPosX * GlobalRescale, WindowWidth),
DisplayViewportGlUnitsX1);
double x2 = Math.Min(x1 + OpenGlUtil.GetNormalizedWidthCoordValue(parWidth * GlobalRescale, WindowWidth),
DisplayViewportGlUnitsX2);
double y1 = Math.Min(DisplayViewportGlUnitsY1 -
OpenGlUtil.GetNormalizedHeightCoordValue(parPosY * GlobalRescale, WindowHeight),
DisplayViewportGlUnitsY1);
double y2 = Math.Max(y1 - OpenGlUtil.GetNormalizedHeightCoordValue(parHeight * GlobalRescale, WindowHeight),
DisplayViewportGlUnitsY2);
return(new OpenGlScreenNormalizedRect()
{
X1 = x1,
X2 = x2,
Y1 = y1,
Y2 = y2
});
}
/// <summary>
/// Получить информацию о позиции объекта на дисплее, обновляемым с помощью буфера кадров
/// </summary>
/// <param name="parPosX">Позиция X</param>
/// <param name="parPosY">Позиция Y</param>
/// <param name="parWidth">Ширина</param>
/// <param name="parHeight">Высота</param>
/// <returns></returns>
private OpenGlScreenNormalizedRect GetCurrentViewportNormalizedRect(double parPosX, double parPosY, double parWidth,
double parHeight)
{
double x1 = Math.Max(-1 + OpenGlUtil.GetNormalizedWidthCoordValue(parPosX, ViewportWidth), -1);
double x2 = Math.Min(x1 + OpenGlUtil.GetNormalizedWidthCoordValue(parWidth, ViewportWidth), 1);
double y1 = Math.Min(1 - OpenGlUtil.GetNormalizedHeightCoordValue(parPosY, ViewportHeight), 1);
double y2 = Math.Max(y1 - OpenGlUtil.GetNormalizedHeightCoordValue(parHeight, ViewportHeight), -1);
return(new OpenGlScreenNormalizedRect()
{
X1 = x1,
X2 = x2,
Y1 = y1,
Y2 = y2
});
}
