Esempio n. 1
0
        /// <summary>
        /// Render overlay graphic.
        /// </summary>
        /// <param name="pixels">Pixels subject to rendering.</param>
        /// <param name="width"></param>
        /// <param name="height"></param>
        public void Render(int[] pixels, int width, int height)
        {
            if (_scaledData == null)
            {
                _scaledData = (GrayscalePixelDataU8)_originalData.Rescale(_scale);
            }

            var data = _scaledData.Data;

            var ox = (int)(_offsetX * _scale);
            var oy = (int)(_offsetY * _scale);

            Parallel.For(0, _scaledData.Height, y =>
            {
                if (oy + y >= height)
                {
                    return;
                }
                for (int i = _scaledData.Width * y, e = i + _scaledData.Width, p = (oy + y) * width + ox, x = 0; i < e; i++, p++, x++)
                {
                    if (data[i] > 0)
                    {
                        if (ox + x >= width)
                        {
                            break;
                        }
                        pixels[p] |= _color;
                    }
                }
            }
                         );
        }
Esempio n. 2
0
 /// <summary>
 /// Initialize new instance of <seealso cref="OverlayGraphic"/>
 /// </summary>
 /// <param name="pixelData">Overlay pixel data</param>
 /// <param name="offsetx">X offset</param>
 /// <param name="offsety">Y offset</param>
 /// <param name="color">The color of the resulting overlay</param>
 public OverlayGraphic(SingleBitPixelData pixelData, int offsetx, int offsety, int color)
 {
     _originalData = pixelData;
     _scaledData   = _originalData;
     _offsetX      = offsetx;
     _offsetY      = offsety;
     _color        = color;
     _scale        = 1.0;
 }
Esempio n. 3
0
        /// <summary>
        /// Set overlay scale factor.
        /// </summary>
        /// <param name="scale">Scale factor.</param>
        public void Scale(double scale)
        {
            if ((scale - _scale).IsNearlyZero())
            {
                return;
            }

            _scale      = scale;
            _scaledData = null;
        }