/// <summary>
/// Initializes a new instance of the <see cref="WordCloud"/> class.
/// </summary>
/// <param name="width">The width of word cloud.</param>
/// <param name="height">The height of word cloud.</param>
/// <param name="useRank">if set to <c>true</c> will ignore frequencies for best fit.</param>
/// <param name="fontColor">Color of the font.</param>
/// <param name="maxFontSize">Maximum size of the font.</param>
/// <param name="fontStep">The font step to use.</param>
public WordCloud(int width, int height, bool useRank = false, Color?fontColor = null, int maxFontSize = -1,
int fontStep = 1)
{
Map = new OccupancyMap(width, height);
Image = new FastImage(width, height, PixelFormat.Format32bppArgb);
MaxFontSize = maxFontSize < 0 ? height : maxFontSize;
FontStep = fontStep;
m_fontColor = fontColor;
UseRank = useRank;
Random = new Random();
}
public void Update(FastImage image, int posX, int posY)
{
if (posX < 1)
{
posX = 1;
}
if (posY < 1)
{
posY = 1;
}
for (int i = posY; i < image.Height; ++i)
{
for (int j = posX; j < image.Width; ++j)
{
byte pixel = 0;
for (int p = 0; p < image.PixelFormatSize; ++p)
{
pixel |= image.Data[i * image.Stride + j * image.PixelFormatSize + p];
}
Integral[j, i] = pixel + Integral[j - 1, i] + Integral[j, i - 1] - Integral[j - 1, i - 1];
}
}
}
public void Update(FastImage image)
{
Update(image, 1, 1);
}