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elaborate saddle points
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@@ -50,16 +50,16 @@ function _case4_isolines(cell_pts, threshold) = [
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];
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function _case5_isolines(cell_pts, threshold) =
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let(center_p_z = (cell_pts[0][2] + cell_pts[1][2] + cell_pts[2][2] + cell_pts[3][2]) / 4)
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center_p_z >= threshold ?
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let(center_p = (cell_pts[0] + cell_pts[1] + cell_pts[2] + cell_pts[3]) / 4)
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center_p[2] >= threshold ?
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[
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[interpolated_pt(cell_pts[0], cell_pts[1], threshold), interpolated_pt(cell_pts[1], cell_pts[2], threshold)],
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[interpolated_pt(cell_pts[0], cell_pts[3], threshold), interpolated_pt(cell_pts[2], cell_pts[3], threshold)]
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[interpolated_pt(cell_pts[0], cell_pts[1], threshold), interpolated_pt(cell_pts[1], center_p, threshold), interpolated_pt(cell_pts[1], cell_pts[2], threshold)],
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[interpolated_pt(cell_pts[0], cell_pts[3], threshold), interpolated_pt(cell_pts[3], center_p, threshold), interpolated_pt(cell_pts[2], cell_pts[3], threshold)]
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]
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:
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[
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[interpolated_pt(cell_pts[0], cell_pts[1], threshold), interpolated_pt(cell_pts[0], cell_pts[3], threshold)],
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[interpolated_pt(cell_pts[1], cell_pts[2], threshold), interpolated_pt(cell_pts[2], cell_pts[3], threshold)]
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[interpolated_pt(cell_pts[0], cell_pts[1], threshold), interpolated_pt(cell_pts[0], center_p, threshold), interpolated_pt(cell_pts[0], cell_pts[3], threshold)],
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[interpolated_pt(cell_pts[1], cell_pts[2], threshold), interpolated_pt(cell_pts[2], center_p, threshold), interpolated_pt(cell_pts[2], cell_pts[3], threshold)]
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];
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function _case6_isolines(cell_pts, threshold) = [
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@@ -75,16 +75,16 @@ function _case8_isolines(cell_pts, threshold) = _case7_isolines(cell_pts, thresh
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function _case9_isolines(cell_pts, threshold) = _case6_isolines(cell_pts, threshold);
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function _case10_isolines(cell_pts, threshold) =
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let(center_p_z = (cell_pts[0][2] + cell_pts[1][2] + cell_pts[2][2] + cell_pts[3][2]) / 4)
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center_p_z >= threshold ?
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let(center_p = (cell_pts[0] + cell_pts[1] + cell_pts[2] + cell_pts[3]) / 4)
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center_p[2] >= threshold ?
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[
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[interpolated_pt(cell_pts[0], cell_pts[1], threshold), interpolated_pt(cell_pts[0], cell_pts[3], threshold)],
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[interpolated_pt(cell_pts[1], cell_pts[2], threshold), interpolated_pt(cell_pts[2], cell_pts[3], threshold)]
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[interpolated_pt(cell_pts[0], cell_pts[1], threshold), interpolated_pt(cell_pts[1], center_p, threshold), interpolated_pt(cell_pts[0], cell_pts[3], threshold)],
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[interpolated_pt(cell_pts[1], cell_pts[2], threshold), interpolated_pt(cell_pts[2], center_p, threshold), interpolated_pt(cell_pts[2], cell_pts[3], threshold)]
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]
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:
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[
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[interpolated_pt(cell_pts[0], cell_pts[1], threshold), interpolated_pt(cell_pts[1], cell_pts[2], threshold)],
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[interpolated_pt(cell_pts[0], cell_pts[3], threshold), interpolated_pt(cell_pts[2], cell_pts[3], threshold)]
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[interpolated_pt(cell_pts[0], cell_pts[1], threshold), interpolated_pt(cell_pts[1], center_p, threshold), interpolated_pt(cell_pts[1], cell_pts[2], threshold)],
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[interpolated_pt(cell_pts[0], cell_pts[3], threshold), interpolated_pt(cell_pts[3], center_p, threshold), interpolated_pt(cell_pts[2], cell_pts[3], threshold)]
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];
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function _case11_isolines(cell_pts, threshold) = _case4_isolines(cell_pts, threshold);
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