rviz max differance between two point

edit

sorry my English i use this code for getting calculated points from rviz: "rostopic echo /move_group/result" i have 3 joint, when i give two position to rviz then rviz response like this:

pos[0][0]=5rad;
pos[0][1]=10rad;
pos[0][2]=10rad;

pos[1][0]=12.5rad;
pos[1][1]=12.5rad;
pos[1][2]=12.5rad;

pos[2][0]=20rad;
pos[2][1]=15rad;
pos[2][2]=15rad;

you can see calculated point size is 3, but i want to increase output/calculated point size, if distance bigger then 4rad when i give same two points i expect this output:

pos[0][0]=5;
pos[0][1]=10;
pos[0][2]=10;

pos[1][0]=8;
pos[1][1]=11;
pos[1][2]=11;

pos[2][0]=11;
pos[2][1]=12;
pos[2][2]=12;

pos[3][0]=14;
pos[3][1]=13;
pos[3][2]=13;

pos[4][0]=17;
pos[4][1]=14;
pos[4][2]=14;

pos[5][0]=20;
pos[5][1]=15;
pos[5][2]=15;

you can see calculated point size is 6, so how can i increase output point size, so i want to increase radian resolution, so i want to increase step size, so i want more points

thank you