sizeof(ThreeDpoint) = 12
&p[0] = 140724951823168
&p[1] = 140724951823180
&p[2] = 140724951823192
&p[3] = 140724951823204
&p[4] = 140724951823216
&p[5] = 140724951823228
&p[6] = 140724951823240
&p[7] = 140724951823252
&p[8] = 140724951823264
&p[9] = 140724951823276