Zig Zag Code

for (shift = limit; shift >= 0; shift--)

            {

                        // Low

                        val = Low[iLowest(NULL, 0, MODE_LOW, ExtDepth, shift)];

                        if (val == lastlow)

                                    val = 0.0;

                        else

                        {

                                    lastlow = val;

                                    if ((Low[shift] - val) > (ExtDeviation*Point))

                                                val = 0.0;

                                    else

                                    {

                                                for (back = 1; back <= ExtBackstep; back++)

                                                {

                                                            res = LowMapBuffer[shift+back];

                                                            if ((res != 0) && (res > val))

                                                                        LowMapBuffer[shift+back] = 0.0;

                                                }

                                    }

                        }

                        if (Low[shift] == val)

                                    LowMapBuffer[shift] = val;

                        else

                                    LowMapBuffer[shift] = 0.0;

                                   

                        // High

                        val = High[iHighest(NULL,0,MODE_HIGH,ExtDepth,shift)];

                        if (val == lasthigh)

                                    val = 0.0;

                        else

                        {

                                    lasthigh = val;

                                    if ((val - High[shift]) > (ExtDeviation*Point)) val = 0.0;

                                    else

                                    {

                                                for (back = 1; back <= ExtBackstep; back++)

                                                {

                                                            res = HighMapBuffer[shift+back];

                                                            if ((res != 0) && (res < val))

                                                                        HighMapBuffer[shift+back] = 0.0;

                                                }

                                    }

                        }

                        if (High[shift] == val)

                                    HighMapBuffer[shift] = val;

                        else

                                    HighMapBuffer[shift] = 0.0;

            }