openscad/dotSCAD
1
0
Fork 0
mirror of https://github.com/JustinSDK/dotSCAD.git synced 2025-01-19 07:08:04 +01:00
Code Issues Releases Wiki Activity

elaborate saddle points of 1010

Browse Source
This commit is contained in:
Justin Lin 2021-01-07 18:12:52 +08:00
parent f6556b9ac8
commit 7d333ea247
1 changed files with 38 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
src/_impl/_contours_impl.scad
View File

@ -731,30 +731,56 @@ function _case0101_isobands(cell_pts, lower, upper) =
]
];
function _case1010_isobands(cell_pts, threshold) =
function _case1010_isobands(cell_pts, lower, upper) =
let(
center_p = (cell_pts[0] + cell_pts[1] + cell_pts[2] + cell_pts[3]) / 4,
center_p_z = center_p[2]
)
center_p_z < threshold ? [
center_p_z < lower ? [
[
interpolated_pt(cell_pts[0], cell_pts[1], threshold),
interpolated_pt(cell_pts[1], cell_pts[2], threshold),
interpolated_pt(cell_pts[0], cell_pts[1], lower),
interpolated_pt(cell_pts[1], center_p, lower),
interpolated_pt(cell_pts[1], cell_pts[2], lower),
[cell_pts[1][0], cell_pts[1][1], cell_pts[1][2]]
],
[
interpolated_pt(cell_pts[0], cell_pts[3], threshold),
interpolated_pt(cell_pts[3], center_p, lower),
interpolated_pt(cell_pts[0], cell_pts[3], lower),
[cell_pts[3][0], cell_pts[3][1], cell_pts[3][2]],
interpolated_pt(cell_pts[2], cell_pts[3], threshold)
interpolated_pt(cell_pts[2], cell_pts[3], lower)
]
] :
center_p_z >= lower && center_p_z < upper ? [
[
interpolated_pt(cell_pts[0], center_p, lower),
interpolated_pt(cell_pts[0], cell_pts[3], lower),
[cell_pts[3][0], cell_pts[3][1], cell_pts[3][2]],
interpolated_pt(cell_pts[2], cell_pts[3], lower),
interpolated_pt(cell_pts[2], center_p, lower),
interpolated_pt(cell_pts[1], cell_pts[2], lower),
[cell_pts[1][0], cell_pts[1][1], cell_pts[1][2]],
interpolated_pt(cell_pts[0], cell_pts[1], lower)
]
] : [
[
interpolated_pt(cell_pts[0], cell_pts[3], threshold),
[cell_pts[3][0], cell_pts[3][1], cell_pts[3][2]],
interpolated_pt(cell_pts[2], cell_pts[3], threshold),
interpolated_pt(cell_pts[1], cell_pts[2], threshold),
[cell_pts[1][0], cell_pts[1][1], cell_pts[1][2]],
interpolated_pt(cell_pts[0], cell_pts[1], threshold)
interpolated_pt(cell_pts[0], cell_pts[1], lower),
interpolated_pt(cell_pts[0], center_p, lower),
interpolated_pt(cell_pts[0], center_p, upper),
interpolated_pt(cell_pts[1], center_p, upper),
interpolated_pt(cell_pts[2], center_p, upper),
interpolated_pt(cell_pts[2], center_p, lower),
interpolated_pt(cell_pts[1], cell_pts[2], lower)
],
[
interpolated_pt(cell_pts[0], center_p, lower),
interpolated_pt(cell_pts[0], cell_pts[3], lower),
[cell_pts[3][0], cell_pts[3][1], cell_pts[3][2]],
interpolated_pt(cell_pts[2], cell_pts[3], lower),
interpolated_pt(cell_pts[2], center_p, lower),
interpolated_pt(cell_pts[2], center_p, upper),
interpolated_pt(cell_pts[3], center_p, upper),
interpolated_pt(cell_pts[0], center_p, upper)
]
];
@ -1123,7 +1149,7 @@ function _isobands_of(cell_pts, lower, upper) =
cv == "2020" ? _case2020_isobands(cell_pts, lower, upper) :
cv == "0202" ? _case0202_isobands(cell_pts, lower, upper) :
cv == "0101" ? _case0101_isobands(cell_pts, lower, upper) :
cv == "1010" ? _case1010_isobands(cell_pts, lower) :
cv == "1010" ? _case1010_isobands(cell_pts, lower, upper) :
cv == "2121" ? _case2121_isobands(cell_pts, upper) :
cv == "1212" ? _case1212_isobands(cell_pts, upper) :
cv == "2120" ? _case2120_isobands(cell_pts, lower, upper) :