C++ (Cpp) glist_pixelstox示例

示例#1

文件： x_array.c 项目： porres/pure-data

static void array_define_yrange(t_glist *x, t_floatarg ylo, t_floatarg yhi)
{
    t_glist *gl = (x->gl_list ? pd_checkglist(&x->gl_list->g_pd) : 0);
    if (gl && gl->gl_list && pd_class(&gl->gl_list->g_pd) == garray_class)
    {
        int n = garray_getarray((t_garray *)gl->gl_list)->a_n;
        vmess(&x->gl_list->g_pd, gensym("bounds"),
            "ffff", 0., yhi, (double)(n == 1 ? n : n-1), ylo);
        vmess(&x->gl_list->g_pd, gensym("xlabel"),
            "fff", ylo + glist_pixelstoy(gl, 2) - glist_pixelstoy(gl, 0),
                0., (float)(n-1));
        vmess(&x->gl_list->g_pd, gensym("ylabel"),
            "fff", glist_pixelstox(gl, 0) - glist_pixelstox(gl, 5), ylo, yhi);
    }
    else bug("array_define_yrange");
}

示例#2

文件： g_graph.c 项目： frankjuniorr/PincelDeSom

/* convert an X screen distance to an X coordinate increment.
  This is terribly inefficient;
  but probably not a big enough CPU hog to warrant optimizing. */
t_float glist_dpixtodx(t_glist *x, t_float dxpix)
{
    return (dxpix * (glist_pixelstox(x, 1) - glist_pixelstox(x, 0)));
}