3dgnuplot
Make colors vary smoothly over a rapidly varying unstructured-grid 3D plot
I've got a 3D datafile with highly oscillating data (already sorted with zsort :),
0 51 0.2
0 58 0.3
0 60 0.3
0 60.1 0.4
0 61 0.4
0 62 0.5
0 63 0.4
0 63.1 0.5
0 64 0.1
0 64.1 0.3
0 65 0.2
0 68 0.5
0 69 0.5
0 70 0.5
0 72 0.2
0 72.1 0.3
0 73 0.3
0 73.1 0.1
0 73.2 0.3
0 74 0.3
0 74.1 0.3
0 75 0.1
0 75.1 0.9
0 76 0.2
0 76.1 0.7
0 76.2 0.9
0 77 0.4
0 79 0.2
0 81 0.1
0 81.1 0.2
0 81.2 0.2
0 81.3 0.2
0 81.4 0.1
0 83 0.1
0 83.1 0.3
0 84 0.4
0.1 41 0.3
0.1 46 0.5
0.1 47 0.1
0.1 53 0.3
0.1 53.1 0.5
0.1 57 0.5
0.1 59 0.3
0.1 61 0.3
0.1 61.1 0.1
0.1 61.2 -0.1
0.1 62 0.3
0.1 62.1 0.1
0.1 62.2 0.1
0.1 63 -0.3
0.1 64 0.2
0.1 64.1 0.6
0.1 64.2 -0.1
0.1 65 0.2
0.1 65.1 0.1
0.1 65.2 0.8
0.1 65.3 0.9
0.1 67 0.4
0.1 68 0.3
0.1 69 0.2
0.1 70 0.3
0.1 70.1 0.1
0.1 71 0.1
0.1 71.1 0.1
0.1 72 0.2
0.1 73 0.2
0.1 73.1 0
0.1 73.2 0.6
0.1 73.3 0.3
0.1 73.4 0.2
0.1 75 0.4
0.1 78 0.8
0.1 78.1 0.2
0.1 78.2 0.8
0.1 79 0.5
0.1 79.1 0.4
0.1 82 0
0.1 83 0.5
0.2 34 0.2
0.2 39 0.6
0.2 42 0.5
0.2 43 0.6
0.2 49 0.4
0.2 49.1 0.4
0.2 50 0.7
0.2 54 0.4
0.2 54.1 0.6
0.2 58 0.4
0.2 58.1 0.1
0.2 59 0
0.2 60 0.6
0.2 63 0.2
0.2 63.1 0.5
0.2 63.2 0.3
0.2 64 -0.2
0.2 64.1 0
0.2 67 0.5
0.2 69 0.5
0.2 69.1 0.3
0.2 71 0.2
0.2 71.1 0
0.2 71.2 0.1
0.2 72 -0.1
0.2 72.1 0.2
0.2 74 -0.1
0.2 75 0.2
0.2 76 0.2
0.2 77 0.4
0.2 79 0.2
0.2 79.1 0.2
0.2 81 0.2
0.2 81.1 0.3
0.3 35 0.1
0.3 37 0.2
0.3 41 0.8
0.3 46 0.4
0.3 51 0.7
0.3 53 0.7
0.3 54 0.2
0.3 57 0.1
0.3 58 0.6
0.3 59 0.5
0.3 61 0.3
0.3 61.1 0.1
0.3 62 0.5
0.3 62.1 0.8
0.3 62.2 0.3
0.3 63 0.3
0.3 63.1 0.3
0.3 64 0.8
0.3 64.1 0.3
0.3 64.2 0.4
0.3 69 0.6
0.3 70 0.3
0.3 72 0.1
0.3 74 0
0.3 76 0.3
0.3 76.1 0.1
0.3 79 0.3
0.3 80 0.1
0.3 80.1 0.1
0.3 81 0.3
0.3 81.1 0.2
0.3 83 0
0.4 34 0.6
0.4 34.1 0.5
0.4 36 0.2
0.4 39 0.6
0.4 41 -0.1
0.4 42 0.3
0.4 43 0.5
0.4 48 0.7
0.4 49 0.6
0.4 52 0.8
0.4 52.1 0.1
0.4 54 0.7
0.4 58 0.8
0.4 60 0
0.4 61 0.1
0.4 63 -0.1
0.4 63.1 0
0.4 66 0.7
0.4 67 0.2
0.4 67.1 0.3
0.4 70 0.4
0.4 70.1 0.3
0.4 71 0.1
0.4 74 0.2
0.5 33 0.6
0.5 34 0.1
0.5 35 0.3
0.5 46 0.1
0.5 47 0.4
0.5 53 0.8
0.5 55 0.3
0.5 58 0.1
0.5 59 0.2
0.5 59.1 0.1
0.5 60 0.8
0.5 60.1 -0.1
0.5 61 0.4
0.5 61.1 0.3
0.5 62 0.2
0.5 63 0
0.5 64 0.2
0.5 67 0.2
0.5 68 0.2
0.5 69 0.2
0.5 70 0.1
0.5 72 0.1
0.5 73 0.1
0.5 76 0.3
0.5 76.1 0.2
0.5 79 0.2
0.5 79.1 0.2
0.5 80 0.8
0.5 84 0.1
0.5 84.1 0.4
0.6 20 0.7
0.6 22 0.8
0.6 30 0.4
0.6 30.1 0.7
0.6 31 0.6
0.6 35 0.9
0.6 35.1 0.9
0.6 37 0.5
0.6 38 0.2
0.6 39 0.6
0.6 42 0.3
0.6 43 0.3
0.6 46 1
0.6 47 0.6
0.6 49 0.2
0.6 49.1 0.1
0.6 51 0.9
0.6 51.1 0.2
0.6 54 0.9
0.6 55 1.1
0.6 59 0.6
0.6 61 0.6
0.6 62 0.6
0.6 62.1 0.6
0.6 62.2 0.1
0.6 64 0.9
0.6 65 0.2
0.6 65.1 0.5
0.6 66 0.2
0.6 75 0.4
0.6 81 0.1
0.6 81.1 0.1
0.6 81.2 0.7
0.6 83 0.5
0.7 23 0.4
0.7 24 0.9
0.7 26 1.1
0.7 27 0.7
0.7 33 0.7
0.7 33.1 0
0.7 34 0.3
0.7 36 0.1
0.7 37 0.9
0.7 37.1 0.6
0.7 40 0.5
0.7 46 0.1
0.7 46.1 0.8
0.7 46.2 0.5
0.7 48 0.7
0.7 49 0.5
0.7 50 0.9
0.7 51 0.8
0.7 52 0.8
0.7 52.1 0.5
0.7 54 0.2
0.7 54.1 0
0.7 55 0.9
0.7 56 0.6
0.7 56.1 0.6
0.7 56.2 0.8
0.7 56.3 0.1
0.7 57 0.4
0.7 58 0
0.7 59 1
0.7 59.1 0
0.7 60 0.1
0.7 62 0.2
0.7 68 0.1
0.7 68.1 0.2
0.7 71 0.4
0.7 71.1 0.5
0.7 72 0.2
0.7 77 0.2
0.7 81 0.2
0.7 83 0.1
0.8 21 1
0.8 28 0.9
0.8 28.1 0.1
0.8 29 0.8
0.8 32 0.1
0.8 34 1.1
0.8 37 0.1
0.8 38 0
0.8 39 0.7
0.8 45 0.2
0.8 47 0.1
0.8 47.1 0.3
0.8 47.2 0.7
0.8 48 0.2
0.8 50 0.2
0.8 50.1 0.8
0.8 52 0.2
0.8 52.1 0.2
0.8 54 0.2
0.8 58 1
0.8 60 0.2
0.8 62 0.5
0.8 64 0.2
0.8 64.1 0.2
0.8 65 0.6
0.8 65.1 0.2
0.8 65.2 0.2
0.8 65.3 0.3
0.8 66 0
0.8 68 0.4
0.8 71 0
0.8 71.1 0.4
0.8 73 0.3
0.8 76 0.3
0.8 77 0.2
0.8 77.1 0.1
0.8 77.2 0.1
0.8 78 0.3
0.8 81 0.2
0.8 81.1 0.3
0.8 84 0.2
0.9 21 0.9
0.9 21.1 1.1
0.9 22 0.8
0.9 24 0.4
0.9 26 0.9
0.9 29 0.7
0.9 32 0.9
0.9 32.1 0.7
0.9 35 0.7
0.9 36 1.4
0.9 38 0
0.9 41 0
0.9 43 1
0.9 44 0.7
0.9 54 0.2
0.9 56 0.7
0.9 57 1.2
0.9 60 0.3
0.9 60.1 1
0.9 61 0.2
0.9 62 1.1
0.9 62.1 0.3
0.9 62.2 0.4
0.9 64 0.3
0.9 64.1 0.2
0.9 67 0.2
0.9 70 0.2
0.9 70.1 0.5
0.9 72 0.3
0.9 76 0.2
0.9 77 0.1
0.9 78 0.1
0.9 78.1 0.3
0.9 80 0
0.9 80.1 0.3
1 24 0.3
1 25 0.7
1 30 0.6
1 30.1 0.9
1 34 0.9
1 34.1 0.7
1 35 0.9
1 36 0.6
1 37 0.2
1 38 0.6
1 39 1
1 40 0
1 40.1 1
1 43 0.6
1 48 0.5
1 48.1 1.1
1 50 0.1
1 51 0.8
1 52 1.1
1 53 0.1
1 54 0.4
1 55 0.1
1 58 0.2
1 60 0.2
1 60.1 0.3
1 61 0
1 61.1 0.9
1 62 0.1
1 64 0.4
1 65 0.2
1 66 0.3
1 68 0.5
1 69 0.9
1 70 1.5
1 71 0
1 72 0.1
1 72.1 0.2
1 73 0.2
1 73.1 1.1
1 73.2 0.2
1 74 0.2
1 74.1 0.3
1 76 0.2
1 77 0.4
1 77.1 0.2
1 77.2 0.2
1 81 0.5
1 85 0.4
1.1 22 1.2
1.1 23 0.7
1.1 23.1 0.5
1.1 24 0.7
1.1 24.1 0.8
1.1 26 0.9
1.1 26.1 1.2
1.1 33 1.3
1.1 34 1.2
1.1 36 0.7
1.1 40 0.6
1.1 42 0
1.1 46 0.4
1.1 48 0.2
1.1 49 0.1
1.1 52 0.1
1.1 55 0.2
1.1 57 1.2
1.1 59 1.4
1.1 60 1.5
1.1 60.1 0
1.1 61 0.1
1.1 61.1 -0.1
1.1 61.2 1
1.1 62 0.2
1.1 64 0.1
1.1 64.1 0.2
1.1 64.2 0.2
1.1 64.3 0.1
1.1 65 0.7
1.1 65.1 0.4
1.1 66 0.9
1.1 66.1 0.3
1.1 66.2 0.2
1.1 67 0.2
1.1 67.1 0.1
1.1 68 0.4
1.1 71 0.5
1.1 71.1 0.1
1.1 71.2 0.2
1.1 75 0.2
1.1 76 0.3
1.1 76.1 0.4
1.1 77 0.3
1.1 77.1 0.4
1.1 79 0.2
1.2 22 1.2
1.2 22.1 0.9
1.2 23 1.3
1.2 28 0
1.2 30 0.8
1.2 32 0
1.2 33 0.8
1.2 33.1 0.5
1.2 35 0.8
1.2 35.1 1.1
1.2 38 0.1
1.2 38.1 0.1
1.2 39 1
1.2 39.1 0.7
1.2 39.2 0.8
1.2 40 0.3
1.2 42 1
1.2 43 1.5
1.2 44 0
1.2 47 0.5
1.2 47.1 0.6
1.2 47.2 0.4
1.2 47.3 0.2
1.2 49 0
1.2 49.1 0.2
1.2 50 0
1.2 50.1 0
1.2 53 0.1
1.2 53.1 1.2
1.2 58 0.3
1.2 58.1 0
1.2 60 0.7
1.2 63 0.1
1.2 63.1 0.3
1.2 65 0.2
1.2 65.1 -0.1
1.2 66 0.4
1.2 66.1 0.1
1.2 66.2 0.2
1.2 67 0.2
1.2 67.1 0.3
1.2 69 0.1
1.2 70 0.2
1.2 70.1 0
1.2 71 0.2
1.2 75 0.1
1.2 78 0.1
1.2 80 0.3
1.2 81 0
1.2 81.1 0.2
1.2 81.2 0.4
1.2 82 0.3
1.2 82.1 0.1
1.2 83 0.1
1.3 18 0.6
1.3 22 0.6
1.3 22.1 0.8
1.3 22.2 0.6
1.3 24 0.3
1.3 24.1 1
1.3 29 0.6
1.3 30 1.2
1.3 32 1.1
1.3 34 0.9
1.3 37 0.3
1.3 37.1 0.9
1.3 38 0.2
1.3 41 1.4
1.3 45 -0.1
1.3 45.1 1.1
1.3 45.2 1.1
1.3 47 0.1
1.3 52 0.5
1.3 59 0.1
1.3 59.1 0.2
1.3 60 0.2
1.3 61 0.9
1.3 62 0.2
1.3 63 0.1
1.3 64 0
1.3 65 1.1
1.3 67 0.1
1.3 67.1 0.2
1.3 68 0.3
1.3 68.1 0.1
1.3 69 1.2
1.3 71 0.6
1.3 72 0.2
1.3 73 0.2
1.3 73.1 0.3
1.3 74 0.1
1.3 75 1.2
1.3 77 0.3
1.3 78 0.2
1.3 79 0.2
1.3 84 0.2
1.4 21 1.3
1.4 21.1 0.8
1.4 22 0.7
1.4 23 1.3
1.4 28 0.5
1.4 29 0.9
1.4 31 1.3
1.4 33 0.6
1.4 35 0.1
1.4 38 0.2
1.4 41 0.1
1.4 44 0.5
1.4 46 0.2
1.4 47 0.1
1.4 50 0.3
1.4 51 0
1.4 53 0.2
1.4 53.1 0.2
1.4 54 0.1
1.4 55 0.8
1.4 57 0.2
1.4 59 0.3
1.4 59.1 0.2
1.4 62 0.6
1.4 63 1.2
1.4 64 0.5
1.4 65 0
1.4 66 0.2
1.4 67 0.5
1.4 67.1 1.2
1.4 69 0.6
1.4 69.1 0.1
1.4 71 0.3
1.4 71.1 0.1
1.4 73 0.1
1.4 74 0.3
1.4 74.1 0.4
1.4 75 0.2
1.4 75.1 0.3
1.4 75.2 0.2
1.4 75.3 0.2
1.4 77 0.2
1.4 77.1 0.3
1.4 78 0.2
1.4 78.1 0.3
1.4 81 0.2
1.4 83 0
1.4 85 0.3
1.5 20 0.6
1.5 21 0.7
1.5 21.1 1.1
1.5 23 1.3
1.5 26 0.9
1.5 28 0.9
1.5 32 1.2
1.5 32.1 1.8
1.5 33 0.3
1.5 36 0.1
1.5 38 0.1
1.5 38.1 0.1
1.5 43 0.2
1.5 43.1 0
1.5 44 0.5
1.5 44.1 0.2
1.5 44.2 0.3
1.5 44.3 0.1
1.5 47 0.2
1.5 49 0.1
1.5 52 0.1
1.5 53 0.1
1.5 54 0.1
1.5 55 0.2
1.5 56 0.3
1.5 57 0.1
1.5 58 0.2
1.5 59 1.2
1.5 61 0.3
1.5 62 0.2
1.5 62.1 0.3
1.5 64 0.5
1.5 65 0.1
1.5 65.1 0.2
1.5 65.2 0.4
1.5 65.3 0.3
1.5 66 1
1.5 67 0.3
1.5 69 0.3
1.5 69.1 -0.1
1.5 70 0.3
1.5 74 0.3
1.5 74.1 0.4
1.5 74.2 0.2
1.5 74.3 0.3
1.5 76 0.4
1.5 77 0.1
1.5 79 0.2
1.5 80 0.4
1.5 83 0.1
1.6 19 1
1.6 22 0.9
1.6 23 1
1.6 24 1.2
1.6 26 0.7
1.6 29 0.9
1.6 29.1 0.9
1.6 30 0.1
1.6 30.1 1.5
1.6 32 1
1.6 33 1
1.6 42 0.8
1.6 43 0.2
1.6 43.1 1.1
1.6 44 0.1
1.6 48 1.2
1.6 49 1.1
1.6 50 -0.1
1.6 54 0.2
1.6 54.1 -0.1
1.6 56 1.3
1.6 57 0
1.6 58 0.3
1.6 59 0.2
1.6 59.1 0.3
1.6 61 0.2
1.6 62 0
1.6 62.1 1.2
1.6 65 0.1
1.6 65.1 0.8
1.6 65.2 0.1
1.6 66 0.2
1.6 67 0.1
1.6 68 0.2
1.6 69 0.1
1.6 70 0.1
1.6 71 0.4
1.6 71.1 0
1.6 71.2 0.2
1.6 76 1.1
1.6 83 0.2
1.6 84 0.4
1.7 19 1
1.7 24 0.9
1.7 24.1 1.2
1.7 25 0.5
1.7 26 0.2
1.7 26.1 0.9
1.7 28 0.8
1.7 32 0.7
1.7 33 1.1
1.7 38 0.7
1.7 40 0.1
1.7 41 0.2
1.7 41.1 1.2
1.7 42 0.8
1.7 45 0.4
1.7 46 0.1
1.7 47 0.6
1.7 53 0.1
1.7 54 0.2
1.7 54.1 1.3
1.7 56 0.1
1.7 61 0.1
1.7 62 0.3
1.7 62.1 1.2
1.7 62.2 0.6
1.7 63 1.3
1.7 63.1 1.3
1.7 65 -0.5
1.7 65.1 0.1
1.7 65.2 0.1
1.7 66 0.2
1.7 66.1 0.2
1.7 67 0.2
1.7 68 0.1
1.7 69 0.6
1.7 71 0.2
1.7 72 0.9
1.7 74 0.5
1.7 76 0.5
1.7 76.1 0.1
1.7 78 0.8
1.7 80 0.3
1.7 82 0.1
1.8 21 0.7
1.8 22 1.2
1.8 22.1 0.8
1.8 23 1.4
1.8 23.1 0.6
1.8 26 0.9
1.8 30 0.1
1.8 31 0.1
1.8 32 0.9
1.8 35 0.3
1.8 39 1.2
1.8 41 0.2
1.8 42 0.2
1.8 42.1 0.2
1.8 45 0
1.8 45.1 0.1
1.8 45.2 -0.1
1.8 48 0.7
1.8 56 0.6
1.8 56.1 0.5
1.8 57 0.1
1.8 57.1 0.2
1.8 58 0
1.8 59 0.2
1.8 59.1 0.1
1.8 59.2 0.9
1.8 60 0.3
1.8 60.1 0.1
1.8 60.2 0.2
1.8 61 -0.1
1.8 63 0.2
1.8 64 0.1
1.8 65 0.2
1.8 65.1 0.2
1.8 65.2 0.2
1.8 66 0.2
1.8 66.1 0.6
1.8 66.2 0.2
1.8 66.3 0.1
1.8 66.4 0.2
1.8 67 0.2
1.8 68 0.1
1.8 68.1 0.1
1.8 70 0.2
1.8 70.1 0
1.8 71 0.1
1.8 71.1 0.1
1.8 72 0.1
1.8 72.1 0.3
1.8 75 0.2
1.8 75.1 0.3
1.8 77 0.4
1.8 79 0.4
1.8 83 0.1
1.9 20 0.7
1.9 23 1.5
1.9 30 0.8
1.9 31 0.9
1.9 34 0.2
1.9 36 0.1
1.9 38 0.5
1.9 38.1 1.1
1.9 39 0.3
1.9 40 0
1.9 41 0.6
1.9 44 1.3
1.9 45 0.1
1.9 46 0.3
1.9 47 0.1
1.9 50 0.2
1.9 50.1 0.5
1.9 53 0.4
1.9 53.1 1.1
1.9 54 0.2
1.9 58 0.9
1.9 58.1 0.2
1.9 58.2 0.2
1.9 59 0.3
1.9 59.1 0.1
1.9 61 0.1
1.9 62 0.3
1.9 62.1 0.3
1.9 63 0.1
1.9 66 0.2
1.9 67 0.4
1.9 68 0.1
1.9 70 0.2
1.9 70.1 0.3
1.9 70.2 0.2
1.9 70.3 0.1
1.9 72 0.2
1.9 72.1 0.2
1.9 73 0.1
1.9 74 0.3
1.9 74.1 0.3
1.9 75 0.8
1.9 83 0
1.9 84 0.4
1.9 85 0.3
2 20 1
2 27 0.4
2 29 1.4
2 31 0.8
2 32 1
2 32.1 0.3
2 33 0.3
2 36 1.2
2 36.1 0.1
2 37 0.1
2 38 0.2
2 39 0.5
2 40 0.6
2 40.1 1.5
2 43 -0.1
2 44 0.2
2 45 0.2
2 46 -0.1
2 52 0.1
2 55 0.5
2 56 0.5
2 57 0.2
2 58 1.1
2 58.1 0.3
2 59 0.4
2 62 0.4
2 62.1 0
2 63 0.2
2 63.1 0.7
2 64 0.3
2 65 0.1
2 65.1 0.1
2 66 0.2
2 68 0.2
2 69 1.2
2 69.1 0.1
2 71 0.1
2 71.1 0.3
2 71.2 0.1
2 72 0.2
2 74 0.2
2 74.1 1.2
2 74.2 0.4
2 74.3 0.2
2 77 0.1
2 80 0.2
2 80.1 0.1
2 81 0.1
2.1 21 0.8
2.1 21.1 0.9
2.1 25 0.9
2.1 27 0.9
2.1 28 0.9
2.1 29 1.2
2.1 30 0.9
2.1 30.1 0.4
2.1 32 0.8
2.1 33 0.8
2.1 34 0.2
2.1 34.1 0.1
2.1 40 0.6
2.1 40.1 0.3
2.1 42 1
2.1 43 1.2
2.1 43.1 1.2
2.1 44 0.2
2.1 47 0.2
2.1 49 0.2
2.1 52 0.4
2.1 53 1.3
2.1 53.1 0.4
2.1 53.2 0.3
2.1 55 0.1
2.1 56 0.1
2.1 58 0.4
2.1 59 0.2
2.1 60 0.1
2.1 65 0.2
2.1 66 0.3
2.1 66.1 0.2
2.1 66.2 0.3
2.1 67 0.3
2.1 68 0.1
2.1 68.1 0.4
2.1 69 0.4
2.1 70 0.9
2.1 70.1 0.3
2.1 70.2 -0.1
2.1 73 0
2.1 73.1 0.3
2.1 73.2 0.3
2.1 73.3 0.1
2.1 74 0.1
2.1 75 0.2
2.1 76 0.5
2.1 76.1 0.2
2.1 78 0.4
2.1 79 0.4
2.1 79.1 0.4
2.1 80 0.2
2.2 18 0.7
2.2 21 0.9
2.2 29 0.7
2.2 29.1 1.1
2.2 31 0.1
2.2 32 0.1
2.2 33 0.3
2.2 36 0
2.2 36.1 1.1
2.2 37 0.9
2.2 41 0.8
2.2 41.1 1.5
2.2 42 0.1
2.2 44 0.1
2.2 45 1
2.2 48 0.3
2.2 54 0.2
2.2 54.1 1
2.2 55 0.2
2.2 56 0.1
2.2 56.1 0.1
2.2 61 0
2.2 64 0.2
2.2 64.1 0.2
2.2 65 0.1
2.2 66 0.2
2.2 66.1 0.2
2.2 67 0.2
2.2 68 0.1
2.2 68.1 0.1
2.2 69 0.1
2.2 69.1 0.3
2.2 71 0.2
2.2 72 0.2
2.2 73 0.5
2.2 73.1 0.2
2.2 74 0.3
2.2 75 0.9
2.3 19 0.7
2.3 37 0.9
2.3 37.1 0.1
2.3 37.2 0.2
2.3 40 0.2
2.3 41 0.1
2.3 42 1.2
2.3 44 0.2
2.3 45 0.6
2.3 46 0.2
2.3 46.1 0.2
2.3 47 0.5
2.3 49 0.4
2.3 50 0.1
2.3 50.1 0.3
2.3 54 0.1
2.3 54.1 0.1
2.3 55 -0.1
2.3 56 0.2
2.3 56.1 0.9
2.3 56.2 0.2
2.3 57 0.7
2.3 57.1 1.4
2.3 60 0.3
2.3 61 0.3
2.3 62 0.2
2.3 64 0.1
2.3 64.1 0.3
2.3 65 0.2
2.3 66 0.2
2.3 67 0.3
2.3 67.1 0.2
2.3 68 0.5
2.3 71 0.3
2.3 71.1 0.3
2.3 73 0.2
2.3 74 0.2
2.3 74.1 0.2
2.4 22 1.6
2.4 27 0.7
2.4 27.1 1
2.4 27.2 0.1
2.4 30 0.1
2.4 37 0.1
2.4 38 0.7
2.4 40 0.2
2.4 41 0.2
2.4 42 0.2
2.4 47 1.7
2.4 51 -0.2
2.4 52 0.1
2.4 54 0.2
2.4 54.1 0.1
2.4 54.2 0
2.4 54.3 0.2
2.4 55 0.5
2.4 55.1 0.1
2.4 57 0.2
2.4 58 0.2
2.4 59 0.2
2.4 63 0.1
2.4 64 0.2
2.4 65 0.2
2.4 66 0.2
2.4 66.1 0.2
2.4 66.2 0.5
2.4 67 0.1
2.4 67.1 0.2
2.4 68 0.3
2.4 70 0.3
2.4 71 0.1
2.4 75 0.4
2.4 75.1 0
2.5 23 0.7
2.5 26 0.1
2.5 27 1
2.5 29 0.8
2.5 30 0.4
2.5 31 0.5
2.5 32 0.9
2.5 33 1.1
2.5 34 1.1
2.5 41 1
2.5 42 0.1
2.5 45 0.1
2.5 45.1 1.3
2.5 45.2 0.7
2.5 46 0.1
2.5 48 1.3
2.5 48.1 0.5
2.5 48.2 0.5
2.5 49 1
2.5 58 0.2
2.5 58.1 0.1
2.5 61 0.2
2.5 61.1 0.1
2.5 63 0.2
2.5 63.1 0.2
2.5 64 0.2
2.5 65 0.4
2.5 66 0.2
2.5 66.1 0.2
2.5 67 0.2
2.5 70 0.3
2.5 70.1 0.4
2.5 70.2 0.2
2.5 70.3 0.2
2.5 70.4 0.3
2.5 70.5 0.6
2.5 73 0.2
2.5 73.1 0.1
2.5 73.2 0.3
2.5 75 0.2
2.6 22 1
2.6 24 0.8
2.6 29 0.5
2.6 31 0.3
2.6 31.1 0.5
2.6 38 0.7
2.6 38.1 0.1
2.6 42 0.2
2.6 43 0.2
2.6 45 0.1
2.6 54 0.4
2.6 54.1 0.2
2.6 60 0
2.6 60.1 0.4
2.6 61 0.2
2.6 67 0.1
2.6 68 0.4
2.6 70 1.2
2.6 70.1 0.1
2.6 72 0.1
2.6 75 0.2
2.6 79 0.1
2.7 27 0.7
2.7 27.1 0.8
2.7 30 0.3
2.7 33 1
2.7 33.1 -0.2
2.7 38 0.9
2.7 42 0.7
2.7 42.1 0.7
2.7 48 1
2.7 48.1 0
2.7 49 0.9
2.7 53 0.1
2.7 55 0.4
2.7 55.1 0.2
2.7 56 0.1
2.7 58 0.3
2.7 60 0.2
2.7 61 0.5
2.7 62 0.2
2.7 64 0.8
2.7 66 0.1
2.7 68 0.2
2.7 69 0.2
2.7 69.1 0.3
2.7 72 0.3
2.7 72.1 0.3
2.7 73 0.3
2.7 74 0.2
2.7 75 0.1
2.8 17 0.6
2.8 23 0.4
2.8 24 0.6
2.8 27 1.6
2.8 28 0.6
2.8 29 0.6
2.8 31 0.9
2.8 32 0.9
2.8 36 0.5
2.8 38 0.1
2.8 40 0.6
2.8 40.1 0.5
2.8 53 0.4
2.8 54 0.1
2.8 54.1 0.2
2.8 56 0.2
2.8 56.1 0.2
2.8 58 0.1
2.8 58.1 0.7
2.8 61 1.1
2.8 64 0
2.8 65 0.1
2.8 65.1 0.1
2.8 68 0.5
2.8 74 0.8
2.8 77 0.3
2.9 19 0.3
2.9 32 0.1
2.9 32.1 0.7
2.9 34 0
2.9 36 0.1
2.9 37 0.8
2.9 38 1
2.9 38.1 0.8
2.9 40 1
2.9 45 1
2.9 45.1 0.2
2.9 46 0.3
2.9 47 0.7
2.9 53 0.4
2.9 53.1 0
2.9 54 0.4
2.9 55 0.3
2.9 56 0.1
2.9 56.1 0.2
2.9 60 -0.2
2.9 61 0
2.9 62 0.2
2.9 62.1 0.1
2.9 63 0.2
2.9 67 0
2.9 68 0.3
2.9 73 0.3
2.9 73.1 0.2
3 22 1
3 24 0.1
3 24.1 0.4
3 29 0.6
3 34 0.2
3 39 0.2
3 41 0.4
3 41.1 0.7
3 42 1
3 42.1 0.8
3 56 0.2
3 65 0.2
3 69 0.3
3 71 0.5
3 78 0.2
3 79 0.1
3.1 17 0.8
3.1 18 0.5
3.1 22 1
3.1 32 0.2
3.1 32.1 0.9
3.1 38 0.3
3.1 44 0.5
3.1 46 0.2
3.1 53 0.1
3.1 56 0.1
3.1 56.1 0.2
3.1 64 0
3.1 70 0.4
3.1 72 0.6
3.1 76 0.2
3.2 18 0.7
3.2 21 0.3
3.2 22 1.1
3.2 36 1.2
3.2 38 0.6
3.2 38.1 0.8
3.2 42 0
3.2 46 -0.1
3.2 46.1 0.1
3.2 47 0.3
3.2 47.1 0.5
3.2 47.2 0.5
3.2 50 0.5
3.2 58 0.1
3.2 60 0.5
3.2 65 0.8
3.2 67 0
3.2 69 0.9
3.2 73 1
3.2 74 0
3.2 77 0.2
3.3 17 0.6
3.3 19 1.5
3.3 23 1
3.3 25 0.3
3.3 28 0.7
3.3 35 0.5
3.3 35.1 0.6
3.3 52 0.2
3.3 62 0.1
3.3 63 0.4
3.3 64 0
3.3 64.1 0.3
3.3 64.2 0.1
3.3 73 0.2
3.3 74 0.3
3.3 79 0.2
3.4 18 0.6
3.4 20 0.1
3.4 34 0.6
3.4 38 0.2
3.4 38.1 0.6
3.4 40 0.2
3.4 41 0.8
3.4 56 0.7
3.5 22 1
3.5 30 0.4
3.5 30.1 0.4
3.5 32 0.3
3.5 34 0.4
3.5 38 0.8
3.5 38.1 0.2
3.5 41 0.5
3.5 49 0.3
3.5 54 0.1
3.5 69 0.2
3.5 71 0.3
3.5 74 0.4
3.6 24 1.1
3.6 25 0.7
3.6 32 0.4
3.6 42 0
3.6 46 0.2
3.6 57 0.2
3.7 22 1.1
3.7 22.1 0.8
3.7 23 0.1
3.7 23.1 1.1
3.7 27 0.7
3.7 30 0.6
3.7 34 0.1
3.7 35 0.1
3.7 40 0.9
3.7 44 0.2
3.7 45 0.4
3.7 46 0.5
3.7 49 0.4
3.7 50 0.1
3.7 51 0.8
3.7 66 0.4
3.8 18 0.3
3.8 22 1.4
3.8 23 0.5
3.8 24 0.7
3.8 24.1 0.5
3.8 28 0.3
3.8 28.1 0.6
3.8 37 1.1
3.8 38 0.6
3.8 39 0.6
3.8 44 0.8
3.8 46 0
3.8 65 0.1
3.9 17 1.4
3.9 27 0.6
3.9 31 1
3.9 32 0.5
3.9 34 0.3
3.9 54 0.1
3.9 61 0.2
3.9 64 0.3
3.9 66 0.2
3.9 66.1 0.2
3.9 67 0
4 22 1
4 28 0.6
4 29 0.4
4 30 0.2
4 31 0.6
4 32 0.1
4 45 0.5
4 56 0.2
4 65 0.1
4 73 0.3
4.1 16 1.3
4.1 23 1.1
4.1 25 0.6
4.1 26 0.6
4.1 28 0.7
4.1 32 0.4
4.1 32.1 0.6
4.1 33 0.5
4.1 41 0.2
4.1 42 0.7
4.1 43 0.2
4.1 45 0.3
4.1 64 0.2
4.1 65 0
4.2 26 0.5
4.2 27 0.4
4.2 27.1 0.7
4.2 27.2 0.3
4.2 31 0.5
4.2 33 0.3
4.2 33.1 0.5
4.2 36 0.3
4.2 38 0.1
4.2 51 0.3
4.2 62 0.9
4.2 70 0.5
4.3 17 1.2
4.3 27 0.6
4.3 29 0.4
4.3 29.1 0.7
4.3 33 0.4
4.3 35 0.2
4.3 38 0.9
4.3 41 0.6
4.3 42 0.6
4.3 45 0.1
4.3 63 0.1
4.3 71 0.1
4.4 21 0.9
4.4 24 0.4
4.4 29 0.2
4.4 33 0.6
4.4 35 0.1
4.4 42 0
4.4 43 1
4.4 45 0.5
4.4 62 0.1
4.5 23 0.8
4.5 29 0.6
4.5 35 0.3
4.5 38 1.2
4.5 39 0.2
4.5 40 -0.3
4.5 42 0.6
4.5 42.1 0.6
4.6 22 1.1
4.6 25 0.5
4.6 25.1 0.6
4.6 32 0.6
4.6 34 0.7
4.6 35 0.6
4.6 37 0.4
4.6 41 0.7
4.7 27 0.7
4.7 32 0.6
4.7 33 0.5
4.7 37 0.3
4.8 23 0.9
4.8 25 0.6
4.8 26 1.1
4.8 34 0.7
4.8 34.1 0.6
4.8 37 0.2
4.8 38 1.1
4.8 47 0.7
4.8 57 0.5
4.8 64 0.4
4.9 21 0.9
4.9 23 1
4.9 26 0.5
4.9 27 0.5
4.9 28 0.3
4.9 28.1 0.2
4.9 33 0.7
4.9 33.1 0.5
4.9 34 0.5
4.9 40 0.7
4.9 44 0.5
5 30 0.4
5 41 0.2
5 48 0.7
5.1 27 0.5
5.1 33 0.6
5.1 43 0.1
5.1 45 0.5
5.2 30 0.7
5.2 31 0.7
5.2 35 0.6
5.2 38 1.1
5.2 47 0.5
5.3 30 0.5
5.3 32 0.4
5.4 30 0.6
5.4 32 0.3
5.4 38 0.9
5.5 32 0.7
5.5 39 0.9
5.6 38 0.8
5.6 41 -0.7
5.7 21 -0.4
5.7 33 0.3
5.7 37 0.9
5.8 64 0.1
5.9 34 0.3
6 26 0.9
6.5 61 -0.1
The (x,y) values define an unstructured grid. As a result I have had to use set dgrid3d to build a regular grid by interpolation, since gnuplot does not perform triangulations for the time being.
The data being so oscillating, a good resolution requires the use of a very dense grid. I've tried set dgrid3d 512,512 and set dgrid3d 900,900 and splotted the file with pm3d, see below. In the latter case, resolution is better but as you see, there are still color jumps: is there a way to make the colors vary smoothly along the whole plot ? (only in less-rapidly-oscillating areas, the colors do vary smoothly). I have also projected the 3D plot onto the (x,y) plane with set contour and then a thousand contours with set cntrparam levels, to have a better resolution, as well as set palette maxcolors 1024 but that does not change anything. If anyone could give me a hint...
512x512-point grid with dgrid3d
900x900-point grid with dgrid3d
Solution
I don't really see how Delaunay triangulation is going to help in this case. A Gaussian kernel to dgrid3d seems a better option. It depends on the physical significance of the point values. Are they samples? Independent events? Should nearby points be averaged or summed?
For what it's worth you can do the triangulation in gnuplot 6. This mode is currently undocumented, as the implementation is only as only as complete as needed to serve as a step on the way to generating concave hulls. The plot style with polygons takes the color from the first vertex of the triangle. A more complete implementation could allow other options like averaging the vertex z values.
set style fill solid border lc "black"
plot 'DATA' using 1:2:3 delaunay with polygons lc palette
Here, on the other hand, is the same data plotted using a Gaussian kernel density. Note that this is summing the contribution of nearby points, so the net z value is greater than the original range of z values. That may or may not capture the property you want. The extent of smoothing may be varied by changing the final two parameters in the set dgrid3d command, which control the x and y distance over which any individual point contributes to the net value.
set dgrid3d 100,100 gauss kdensity 0.5,5.0
set pm3d noborder
set view map
splot 'DATA' with pm3d
- Disable vertical sync for glxgears
- A way to fit circles on 3D data
- OrbitControls of THREE.js displaying error
- What glm::normalize does?
- Why does plot3 only show axes in GNU Octave?
- I'm trying to rotate text around a unknown 3d line to face the player
- Is Quaternion (-Q0, Qx, Qy, Qz) the same as (Q0,-Qx, -Qy, -Qz)?
- Godot 4 3d Gdscript get object collided with
- Rendering a large number of colored particles using three.js and the canvas renderer
- Not all the sides of the 3D cube display
- CSS perspective percentages and improper scaling
- Data Structure and Algorithm for a 3D Volume?
- Calculation of Yaw, Pitch and Roll
- 3D Character keeps moving after key was realesed in Unity
- Update Three.js 3d model texture + Fabric.js canvas as texture
- Colors of the bar are not same for the same height in MATLAB 3d bar plot after applying log scale
- How to create heatmap illustraing mesh differences controlling the position of center color for divergence color palette?
- Coordinate mapping at an angle
- What's the point of having a single vertex attribute?
- How to solve for coordinates given their distances
- Is it Possible to Convert Imgs and Videos into 3d Model for virtual tours?
- How do you generate roof geometry from a simple polygon where each edge has a defined slope?
- Showing stats of vertices and triangle counts on editor
- How to plot vector addition in Matplotlib?
- What would you see if left-right images of a 3d view are inverted?
- IOS Scene Kit not Animating asset from Blender
- Gatsby build fails when using spline
- Scatter points are disappearing when rotating a 3d surface plot
- Vertex displacement on sphere break the mesh
- Setting 3D-plot scale to logarithmic in Matplotlib giving an almost empty 2D plot