コード例 #1
0
//----------------------------------------------------------------------------
void NonlocalBlowup::GetSnapshot ()
{
    char name[256];
    if (mIteration < 10)
    {
        sprintf(name, "%s00%d.bmp", mPrefix.c_str(), mIteration);
    }
    else if (mIteration < 100)
    {
        sprintf(name, "%s0%d.bmp", mPrefix.c_str(), mIteration);
    }
    else
    {
        sprintf(name, "%s%d.bmp", mPrefix.c_str(), mIteration);
    }

    Image2<PixelBGRA8> image(512, 512);
    glReadPixels(0, 0, 512, 512, GL_BGRA, GL_UNSIGNED_BYTE,
        image.GetPixels1D());

    SaveBMP32(std::string(name), image);
}
コード例 #2
0
//----------------------------------------------------------------------------
void SaveGraph (const std::string& folder, int frame, float ymax,
    int xbound, const float* slice)
{
    const int ybound = 256;
    Image2<PixelBGRA8> graph(xbound, ybound);

    PixelBGRA8* pixels = graph.GetPixels1D();
    for (int i = 0; i < graph.GetNumPixels(); ++i)
    {
        PixelBGRA8& value = *pixels++;
        value.b = 255;
        value.g = 255;
        value.r = 255;
        value.a = 255;
    }

    int x0, y0, x1, y1, cx, cy;
    float t;

    x0 = 0;
    y0 = (int)(ybound*slice[0]/ymax);
    for (x1 = 1; x1 < xbound; ++x1)
    {
        float value = slice[x1];
        if (value < ymax)
        {
            y1 = (int)(ybound*value/ymax);
        }
        else
        {
            y1 = ybound;
        }

        if (y0 < ybound)
        {
            if (y1 < ybound)
            {
                DrawLine(x0, y0, x1, y1, DrawCallback, &graph);
            }
            else
            {
                cy = ybound-1;
                t = (float)(cy - y0)/(float)(y1 - y0);
                cx = (int)(x0 + t*(x1 - x0) + 0.5f);
                DrawLine(x0, y0, cx, cy, DrawCallback, &graph);
            }
        }
        else if (y1 < ybound)
        {
            cy = ybound-1;
            t = (float)(cy - y0)/(float)(y1 - y0);
            cx = (int)(x0 + t*(x1 - x0) + 0.5f);
            DrawLine(cx, cy, x1, y1, DrawCallback, &graph);
        }

        x0 = x1;
        y0 = y1;
    }

    char name[256];
    if (frame < 10)
    {
        sprintf(name, "%s/Frame00%d.bmp", folder.c_str(), frame);
    }
    else if (frame < 100)
    {
        sprintf(name, "%s/Frame0%d.bmp", folder.c_str(), frame);
    }
    else
    {
        sprintf(name, "%s/Frame%d.bmp", folder.c_str(), frame);
    }

    SaveBMP32(name, graph);
}