source: cpp/frams/canvas/nn_simple_layout.cpp @ 135

#include "nn_layout.h"
#include "common/nonstd_math.h"
#include <stdlib.h>

static void randomlayout(NNLayoutState*);
static void arraylayout(NNLayoutState*);

extern void smartlayout(NNLayoutState*);

struct NNLayoutFunction nn_layout_functions[] =
{
        { "Random", randomlayout, },
        { "Dumb array", arraylayout, },
        { "Smart", smartlayout, },
        { 0, }
};

static void randomlayout(NNLayoutState*nn)
{
        int i;
        int N = nn->GetElements();
        for (i = 0; i < N; i++)
        {
                nn->SetXYWH(i, (int)rnd0N(300), (int)rnd0N(300), 50, 50);
        }
}

static void arraylayout(NNLayoutState*nn)
{
        int e = 0, i, j;
        int N = nn->GetElements();
        int a = ((int)(sqrt(double(N)) - 0.0001)) + 1;
        for (j = 0; j < a; j++)
                for (i = 0; i < a; i++)
                {
                        if (e >= N) return;
                        nn->SetXYWH(e, 70 * i + ((i + j) & 3) * 4, 70 * j + ((2 + i + j) & 3) * 4, 50, 50);
                        e++;
                }
}