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jscad / csg.js

DEPRECATED: CSG Library for JSCAD (See the link below)
https://github.com/jscad/OpenJSCAD.org/tree/master/packages/modeling
MIT License
217 stars 56 forks source link

V2 : `reTesselateCoplanarPolygons` seems to have a problem #194

Open FishOrBear opened 4 years ago

FishOrBear commented 4 years ago

ver:V2

Primitive triangle mesh image

reTesselateCoplanarPolygons (draw line image

reTesselateCoplanarPolygons (draw face image

testcode:

console.log("test");
let geo = geom3.fromPoints([[[585.9650675011303, 654.0333333399891, 0], [585.9650675011303, 0, 0], [1287.9139404296875, 0, 0], [585.9650675011303, 654.0333333399891, 0]], [[585.9650675011303, 654.0333333399891, 0], [1287.9139404296875, 0, 0], [1287.9139404296875, 1200, 0], [585.9650675011303, 1200, 0], [585.9650675011303, 654.0333333399891, 0]], [[585.9650675011303, 487.06177308554817, 0], [0, 487.06177308554817, 0], [0, 0, 0], [585.9650675011303, 0, 0], [585.9650675011303, 487.06177308554817, 0]], [[585.9650675011303, 953.0992486712241, 0], [585.9650675011303, 1200, 0], [569.7829030842556, 1200, 0], [585.9650675011303, 953.0992486712241, 0]], [[41.815788313545774, 1161.038587749494, 0], [0, 1200, 0], [0, 1163.7793495535184, 0], [41.815788313545774, 1161.038587749494, 0]], [[580.192984433049, 1041.1672975136432, 0], [569.7829030842556, 1200, 0], [399.0792683898784, 1200, 0], [580.192984433049, 1041.1672975136432, 0]], [[89.10858823427716, 1116.974028679698, 0], [41.815788313545774, 1161.038587749494, 0], [0, 1163.7793495535184, 0], [0, 1111.133491795949, 0], [89.10858823427716, 1116.974028679698, 0]], [[513.8373819542935, 1099.3596856831782, 0], [399.0792683898784, 1200, 0], [363.21825136572335, 1200, 0], [513.8373819542935, 1099.3596856831782, 0]], [[212.83043043921808, 1001.6975292294348, 0], [89.10858823427716, 1116.974028679698, 0], [0, 1111.133491795949, 0], [0, 683.1732572016322, 0], [212.83043043921808, 1001.6975292294348, 0]], [[581.0924424726376, 1027.443739895384, 0], [580.192984433049, 1041.1672975136432, 0], [531.96799718878, 1083.4595391987045, 0], [581.0924424726376, 1027.443739895384, 0]], [[218.0567931242633, 996.827921854922, 0], [212.83043043921808, 1001.6975292294348, 0], [0, 683.1732572016322, 0], [0, 554.6549147914332, 0], [218.0567931242633, 996.827921854922, 0]], [[493.78635656364474, 1112.7573297261627, 0], [363.21825136572335, 1200, 0], [316.8756808655663, 1200, 0], [493.78635656364474, 1112.7573297261627, 0]], [[49.1383416291427, 487.06177308554817, 0], [221.18866516331374, 993.9098336745839, 0], [218.0567931242633, 996.827921854922, 0], [0, 554.6549147914332, 0], [0, 487.06177308554817, 0], [49.1383416291427, 487.06177308554817, 0]], [[581.9527194048013, 1014.3179913595105, 0], [581.0924424726376, 1027.443739895384, 0], [547.8681436727304, 1065.3288629296528, 0], [581.9527194048013, 1014.3179913595105, 0]], [[49.1383416291427, 487.06177308554817, 0], [121.3387404549834, 487.06177308554817, 0], [222.00728710207946, 993.1470914635701, 0], [221.18866516331374, 993.9098336745839, 0], [49.1383416291427, 487.06177308554817, 0]], [[472.1581827354736, 1123.4231622457141, 0], [316.8756808655663, 1200, 0], [246.57062466362078, 1200, 0], [472.1581827354736, 1123.4231622457141, 0]], [[218.827738399571, 977.1627252339831, 0], [121.3387404549834, 487.06177308554817, 0], [186.70594798035887, 487.06177308554817, 0], [218.827738399571, 977.1627252339831, 0]], [[582.7833584469377, 1001.6444454540801, 0], [581.9527194048013, 1014.3179913595105, 0], [561.265848751198, 1045.2778985736759, 0], [582.7833584469377, 1001.6444454540801, 0]], [[217.2505899620678, 953.0992486714372, 0], [186.70594798035887, 487.06177308554817, 0], [217.2505899620678, 487.06177308554817, 0], [217.2505899620678, 953.0992486714372, 0]], [[449.3229776573378, 1131.174688124625, 0], [246.57062466362078, 1200, 0], [103.31238340676235, 1200, 0], [449.3229776573378, 1131.174688124625, 0]], [[583.5925177127425, 989.2986290648014, 0], [582.7833584469377, 1001.6444454540801, 0], [571.9316202354629, 1023.6497247457753, 0], [583.5925177127425, 989.2986290648014, 0]], [[41.815788313545795, 1161.038587749494, 0], [425.6712442587688, 1135.8792779683997, 0], [103.31238340676235, 1200, 0], [0, 1200, 0], [41.815788313545795, 1161.038587749494, 0]], [[584.3879190636148, 977.1627252339455, 0], [583.5925177127425, 989.2986290648014, 0], [579.6833292198446, 1000.8144586324776, 0], [584.3879190636148, 977.1627252339455, 0]], [[401.6077676964492, 1137.45648744104, 0], [41.815788313545795, 1161.038587749494, 0], [89.1085882342773, 1116.9740286796978, 0], [401.6077676964492, 1137.45648744104, 0]], [[299.0498522338729, 1130.7344273136287, 0], [89.1085882342773, 1116.9740286796978, 0], [212.8304304392181, 1001.6975292294347, 0], [299.0498522338729, 1130.7344273136287, 0]], [[313.539283885475, 1131.6841232033587, 0], [299.0498522338729, 1130.7344273136287, 0], [255.34739172003987, 1065.3288629295075, 0], [313.539283885475, 1131.6841232033587, 0]], [[241.94980871197896, 1045.2778985736684, 0], [212.8304304392181, 1001.6975292294347, 0], [218.05679312426327, 996.827921854922, 0], [241.94980871197896, 1045.2778985736684, 0]], [[327.26313294742744, 1132.5836397171047, 0], [313.539283885475, 1131.6841232033587, 0], [271.2475382041619, 1083.4595391987518, 0], [327.26313294742744, 1132.5836397171047, 0]], [[231.28391515742027, 1023.6497247458037, 0], [218.05679312426327, 996.827921854922, 0], [221.18866516331377, 993.9098336745839, 0], [231.28391515742027, 1023.6497247458037, 0]], [[340.3887518543665, 1133.4439458095596, 0], [327.26313294742744, 1132.5836397171047, 0], [289.3782755088521, 1099.3596856831293, 0], [340.3887518543665, 1133.4439458095596, 0]], [[223.53245031363113, 1000.814458632408, 0], [221.18866516331377, 993.9098336745839, 0], [222.00728710207954, 993.14709146357, 0], [223.53245031363113, 1000.814458632408, 0]], [[353.06188489489995, 1134.2745941502255, 0], [340.3887518543665, 1133.4439458095596, 0], [309.429178829119, 1112.7573297260667, 0], [353.06188489489995, 1134.2745941502255, 0]], [[365.40875752726663, 1135.0838580656036, 0], [353.06188489489995, 1134.2745941502255, 0], [331.0573526576802, 1123.4231622458103, 0], [365.40875752726663, 1135.0838580656036, 0]], [[377.54441320450195, 1135.879277968397, 0], [365.40875752726663, 1135.0838580656036, 0], [353.89267980570315, 1131.1746881245763, 0], [377.54441320450195, 1135.879277968397, 0]]])
console.log(geo);
let ps = reTesselateCoplanarPolygons(geo.polygons)
console.log(ps.length);
console.log(JSON.stringify(ps));

Is this expected?

v0.7 testcode:

let d = [[[585.9650675011303, 654.0333333399891, 0], [585.9650675011303, 0, 0], [1287.9139404296875, 0, 0], [585.9650675011303, 654.0333333399891, 0]], [[585.9650675011303, 654.0333333399891, 0], [1287.9139404296875, 0, 0], [1287.9139404296875, 1200, 0], [585.9650675011303, 1200, 0], [585.9650675011303, 654.0333333399891, 0]], [[585.9650675011303, 487.06177308554817, 0], [0, 487.06177308554817, 0], [0, 0, 0], [585.9650675011303, 0, 0], [585.9650675011303, 487.06177308554817, 0]], [[585.9650675011303, 953.0992486712241, 0], [585.9650675011303, 1200, 0], [569.7829030842556, 1200, 0], [585.9650675011303, 953.0992486712241, 0]], [[41.815788313545774, 1161.038587749494, 0], [0, 1200, 0], [0, 1163.7793495535184, 0], [41.815788313545774, 1161.038587749494, 0]], [[580.192984433049, 1041.1672975136432, 0], [569.7829030842556, 1200, 0], [399.0792683898784, 1200, 0], [580.192984433049, 1041.1672975136432, 0]], [[89.10858823427716, 1116.974028679698, 0], [41.815788313545774, 1161.038587749494, 0], [0, 1163.7793495535184, 0], [0, 1111.133491795949, 0], [89.10858823427716, 1116.974028679698, 0]], [[513.8373819542935, 1099.3596856831782, 0], [399.0792683898784, 1200, 0], [363.21825136572335, 1200, 0], [513.8373819542935, 1099.3596856831782, 0]], [[212.83043043921808, 1001.6975292294348, 0], [89.10858823427716, 1116.974028679698, 0], [0, 1111.133491795949, 0], [0, 683.1732572016322, 0], [212.83043043921808, 1001.6975292294348, 0]], [[581.0924424726376, 1027.443739895384, 0], [580.192984433049, 1041.1672975136432, 0], [531.96799718878, 1083.4595391987045, 0], [581.0924424726376, 1027.443739895384, 0]], [[218.0567931242633, 996.827921854922, 0], [212.83043043921808, 1001.6975292294348, 0], [0, 683.1732572016322, 0], [0, 554.6549147914332, 0], [218.0567931242633, 996.827921854922, 0]], [[493.78635656364474, 1112.7573297261627, 0], [363.21825136572335, 1200, 0], [316.8756808655663, 1200, 0], [493.78635656364474, 1112.7573297261627, 0]], [[49.1383416291427, 487.06177308554817, 0], [221.18866516331374, 993.9098336745839, 0], [218.0567931242633, 996.827921854922, 0], [0, 554.6549147914332, 0], [0, 487.06177308554817, 0], [49.1383416291427, 487.06177308554817, 0]], [[581.9527194048013, 1014.3179913595105, 0], [581.0924424726376, 1027.443739895384, 0], [547.8681436727304, 1065.3288629296528, 0], [581.9527194048013, 1014.3179913595105, 0]], [[49.1383416291427, 487.06177308554817, 0], [121.3387404549834, 487.06177308554817, 0], [222.00728710207946, 993.1470914635701, 0], [221.18866516331374, 993.9098336745839, 0], [49.1383416291427, 487.06177308554817, 0]], [[472.1581827354736, 1123.4231622457141, 0], [316.8756808655663, 1200, 0], [246.57062466362078, 1200, 0], [472.1581827354736, 1123.4231622457141, 0]], [[218.827738399571, 977.1627252339831, 0], [121.3387404549834, 487.06177308554817, 0], [186.70594798035887, 487.06177308554817, 0], [218.827738399571, 977.1627252339831, 0]], [[582.7833584469377, 1001.6444454540801, 0], [581.9527194048013, 1014.3179913595105, 0], [561.265848751198, 1045.2778985736759, 0], [582.7833584469377, 1001.6444454540801, 0]], [[217.2505899620678, 953.0992486714372, 0], [186.70594798035887, 487.06177308554817, 0], [217.2505899620678, 487.06177308554817, 0], [217.2505899620678, 953.0992486714372, 0]], [[449.3229776573378, 1131.174688124625, 0], [246.57062466362078, 1200, 0], [103.31238340676235, 1200, 0], [449.3229776573378, 1131.174688124625, 0]], [[583.5925177127425, 989.2986290648014, 0], [582.7833584469377, 1001.6444454540801, 0], [571.9316202354629, 1023.6497247457753, 0], [583.5925177127425, 989.2986290648014, 0]], [[41.815788313545795, 1161.038587749494, 0], [425.6712442587688, 1135.8792779683997, 0], [103.31238340676235, 1200, 0], [0, 1200, 0], [41.815788313545795, 1161.038587749494, 0]], [[584.3879190636148, 977.1627252339455, 0], [583.5925177127425, 989.2986290648014, 0], [579.6833292198446, 1000.8144586324776, 0], [584.3879190636148, 977.1627252339455, 0]], [[401.6077676964492, 1137.45648744104, 0], [41.815788313545795, 1161.038587749494, 0], [89.1085882342773, 1116.9740286796978, 0], [401.6077676964492, 1137.45648744104, 0]], [[299.0498522338729, 1130.7344273136287, 0], [89.1085882342773, 1116.9740286796978, 0], [212.8304304392181, 1001.6975292294347, 0], [299.0498522338729, 1130.7344273136287, 0]], [[313.539283885475, 1131.6841232033587, 0], [299.0498522338729, 1130.7344273136287, 0], [255.34739172003987, 1065.3288629295075, 0], [313.539283885475, 1131.6841232033587, 0]], [[241.94980871197896, 1045.2778985736684, 0], [212.8304304392181, 1001.6975292294347, 0], [218.05679312426327, 996.827921854922, 0], [241.94980871197896, 1045.2778985736684, 0]], [[327.26313294742744, 1132.5836397171047, 0], [313.539283885475, 1131.6841232033587, 0], [271.2475382041619, 1083.4595391987518, 0], [327.26313294742744, 1132.5836397171047, 0]], [[231.28391515742027, 1023.6497247458037, 0], [218.05679312426327, 996.827921854922, 0], [221.18866516331377, 993.9098336745839, 0], [231.28391515742027, 1023.6497247458037, 0]], [[340.3887518543665, 1133.4439458095596, 0], [327.26313294742744, 1132.5836397171047, 0], [289.3782755088521, 1099.3596856831293, 0], [340.3887518543665, 1133.4439458095596, 0]], [[223.53245031363113, 1000.814458632408, 0], [221.18866516331377, 993.9098336745839, 0], [222.00728710207954, 993.14709146357, 0], [223.53245031363113, 1000.814458632408, 0]], [[353.06188489489995, 1134.2745941502255, 0], [340.3887518543665, 1133.4439458095596, 0], [309.429178829119, 1112.7573297260667, 0], [353.06188489489995, 1134.2745941502255, 0]], [[365.40875752726663, 1135.0838580656036, 0], [353.06188489489995, 1134.2745941502255, 0], [331.0573526576802, 1123.4231622458103, 0], [365.40875752726663, 1135.0838580656036, 0]], [[377.54441320450195, 1135.879277968397, 0], [365.40875752726663, 1135.0838580656036, 0], [353.89267980570315, 1131.1746881245763, 0], [377.54441320450195, 1135.879277968397, 0]]];

let polygons = d.map(pts =>
{
  let polyon = Polygon.createFromPoints(pts);
  return polyon
})
let dest = [];
reTesselateCoplanarPolygons(polygons, dest)
console.log(dest);
console.log(JSON.stringify(dest));

v0.7 dest count:35 v2 dest count:54

Is there an overlap in the generated polygon, is this also expected?

z3dev commented 4 years ago

@FishOrBear this is really good. I’m not too surprised as that code needs some rework, and the transition to V2 was not straight forward.

Anyway, I’ll take a look at this. Do you want to follow along? If so then I can post updates.

FishOrBear commented 4 years ago

Can this result be without overlapping triangles?

how do you want to do it

z3dev commented 4 years ago

@FishOrBear you seem to have specific requirements for the results. Are there errors in the polygons after this routine finishes?

FishOrBear commented 4 years ago

It looks like there is only overlap now.

I want to extract the edge lines of a mesh through a polygon.

For example: image

I temporarily turned off the function of reTesselate in order to achieve my purpose.

There are of course other solutions to extract edges.

z3dev commented 4 years ago

Extracting the edges of a 3D geometry would be something very special.

In general, the goal of reTesselate is to combine small polygons. The CSG boolean operations tend to chop polygons into smaller and smaller polygons. Therefore, reTesselate was born to combine co-planar polygons that share opposing edges.

But the result will never be anything close to the 'edges'.

FishOrBear commented 4 years ago

Well, I have another algorithm to extract it. It's just that I don't want the triangles to overlap.

So I temporarily closed reTesselate

z3dev commented 4 years ago

You have sad that twice now.... ‘triangles overlap’.

Can you provide two overlapping triangles from the example above?

I’m asking because I rewrote reTesselate. The new algorithm does not create any new 3D vertices, so overlapping will not be possible. But I’d like to have a test case.

FishOrBear commented 4 years ago

I think this use case will work


//s

let geo = geom3.fromPoints([[[585.9650675011303, 654.0333333399891, 0], [585.9650675011303, 0, 0], [1287.9139404296875, 0, 0], [585.9650675011303, 654.0333333399891, 0]], [[585.9650675011303, 654.0333333399891, 0], [1287.9139404296875, 0, 0], [1287.9139404296875, 1200, 0], [585.9650675011303, 1200, 0], [585.9650675011303, 654.0333333399891, 0]], [[585.9650675011303, 487.06177308554817, 0], [0, 487.06177308554817, 0], [0, 0, 0], [585.9650675011303, 0, 0], [585.9650675011303, 487.06177308554817, 0]], [[585.9650675011303, 953.0992486712241, 0], [585.9650675011303, 1200, 0], [569.7829030842556, 1200, 0], [585.9650675011303, 953.0992486712241, 0]], [[41.815788313545774, 1161.038587749494, 0], [0, 1200, 0], [0, 1163.7793495535184, 0], [41.815788313545774, 1161.038587749494, 0]], [[580.192984433049, 1041.1672975136432, 0], [569.7829030842556, 1200, 0], [399.0792683898784, 1200, 0], [580.192984433049, 1041.1672975136432, 0]], [[89.10858823427716, 1116.974028679698, 0], [41.815788313545774, 1161.038587749494, 0], [0, 1163.7793495535184, 0], [0, 1111.133491795949, 0], [89.10858823427716, 1116.974028679698, 0]], [[513.8373819542935, 1099.3596856831782, 0], [399.0792683898784, 1200, 0], [363.21825136572335, 1200, 0], [513.8373819542935, 1099.3596856831782, 0]], [[212.83043043921808, 1001.6975292294348, 0], [89.10858823427716, 1116.974028679698, 0], [0, 1111.133491795949, 0], [0, 683.1732572016322, 0], [212.83043043921808, 1001.6975292294348, 0]], [[581.0924424726376, 1027.443739895384, 0], [580.192984433049, 1041.1672975136432, 0], [531.96799718878, 1083.4595391987045, 0], [581.0924424726376, 1027.443739895384, 0]], [[218.0567931242633, 996.827921854922, 0], [212.83043043921808, 1001.6975292294348, 0], [0, 683.1732572016322, 0], [0, 554.6549147914332, 0], [218.0567931242633, 996.827921854922, 0]], [[493.78635656364474, 1112.7573297261627, 0], [363.21825136572335, 1200, 0], [316.8756808655663, 1200, 0], [493.78635656364474, 1112.7573297261627, 0]], [[49.1383416291427, 487.06177308554817, 0], [221.18866516331374, 993.9098336745839, 0], [218.0567931242633, 996.827921854922, 0], [0, 554.6549147914332, 0], [0, 487.06177308554817, 0], [49.1383416291427, 487.06177308554817, 0]], [[581.9527194048013, 1014.3179913595105, 0], [581.0924424726376, 1027.443739895384, 0], [547.8681436727304, 1065.3288629296528, 0], [581.9527194048013, 1014.3179913595105, 0]], [[49.1383416291427, 487.06177308554817, 0], [121.3387404549834, 487.06177308554817, 0], [222.00728710207946, 993.1470914635701, 0], [221.18866516331374, 993.9098336745839, 0], [49.1383416291427, 487.06177308554817, 0]], [[472.1581827354736, 1123.4231622457141, 0], [316.8756808655663, 1200, 0], [246.57062466362078, 1200, 0], [472.1581827354736, 1123.4231622457141, 0]], [[218.827738399571, 977.1627252339831, 0], [121.3387404549834, 487.06177308554817, 0], [186.70594798035887, 487.06177308554817, 0], [218.827738399571, 977.1627252339831, 0]], [[582.7833584469377, 1001.6444454540801, 0], [581.9527194048013, 1014.3179913595105, 0], [561.265848751198, 1045.2778985736759, 0], [582.7833584469377, 1001.6444454540801, 0]], [[217.2505899620678, 953.0992486714372, 0], [186.70594798035887, 487.06177308554817, 0], [217.2505899620678, 487.06177308554817, 0], [217.2505899620678, 953.0992486714372, 0]], [[449.3229776573378, 1131.174688124625, 0], [246.57062466362078, 1200, 0], [103.31238340676235, 1200, 0], [449.3229776573378, 1131.174688124625, 0]], [[583.5925177127425, 989.2986290648014, 0], [582.7833584469377, 1001.6444454540801, 0], [571.9316202354629, 1023.6497247457753, 0], [583.5925177127425, 989.2986290648014, 0]], [[41.815788313545795, 1161.038587749494, 0], [425.6712442587688, 1135.8792779683997, 0], [103.31238340676235, 1200, 0], [0, 1200, 0], [41.815788313545795, 1161.038587749494, 0]], [[584.3879190636148, 977.1627252339455, 0], [583.5925177127425, 989.2986290648014, 0], [579.6833292198446, 1000.8144586324776, 0], [584.3879190636148, 977.1627252339455, 0]], [[401.6077676964492, 1137.45648744104, 0], [41.815788313545795, 1161.038587749494, 0], [89.1085882342773, 1116.9740286796978, 0], [401.6077676964492, 1137.45648744104, 0]], [[299.0498522338729, 1130.7344273136287, 0], [89.1085882342773, 1116.9740286796978, 0], [212.8304304392181, 1001.6975292294347, 0], [299.0498522338729, 1130.7344273136287, 0]], [[313.539283885475, 1131.6841232033587, 0], [299.0498522338729, 1130.7344273136287, 0], [255.34739172003987, 1065.3288629295075, 0], [313.539283885475, 1131.6841232033587, 0]], [[241.94980871197896, 1045.2778985736684, 0], [212.8304304392181, 1001.6975292294347, 0], [218.05679312426327, 996.827921854922, 0], [241.94980871197896, 1045.2778985736684, 0]], [[327.26313294742744, 1132.5836397171047, 0], [313.539283885475, 1131.6841232033587, 0], [271.2475382041619, 1083.4595391987518, 0], [327.26313294742744, 1132.5836397171047, 0]], [[231.28391515742027, 1023.6497247458037, 0], [218.05679312426327, 996.827921854922, 0], [221.18866516331377, 993.9098336745839, 0], [231.28391515742027, 1023.6497247458037, 0]], [[340.3887518543665, 1133.4439458095596, 0], [327.26313294742744, 1132.5836397171047, 0], [289.3782755088521, 1099.3596856831293, 0], [340.3887518543665, 1133.4439458095596, 0]], [[223.53245031363113, 1000.814458632408, 0], [221.18866516331377, 993.9098336745839, 0], [222.00728710207954, 993.14709146357, 0], [223.53245031363113, 1000.814458632408, 0]], [[353.06188489489995, 1134.2745941502255, 0], [340.3887518543665, 1133.4439458095596, 0], [309.429178829119, 1112.7573297260667, 0], [353.06188489489995, 1134.2745941502255, 0]], [[365.40875752726663, 1135.0838580656036, 0], [353.06188489489995, 1134.2745941502255, 0], [331.0573526576802, 1123.4231622458103, 0], [365.40875752726663, 1135.0838580656036, 0]], [[377.54441320450195, 1135.879277968397, 0], [365.40875752726663, 1135.0838580656036, 0], [353.89267980570315, 1131.1746881245763, 0], [377.54441320450195, 1135.879277968397, 0]]])

//e
z3dev commented 4 years ago

@FishOrBear thanks

small comment... 3D polygons contain order sets of unique points. the data provided has an redundant first and last point.

z3dev commented 4 years ago

Here's the result of the new reTesselate function. Only 27 polygons. 😃 

  let shape1 = geometry.geom3.fromPoints([
[  [ 585.965087890625, 0, 0 ],
   [ 1287.9139404296875, 0, 0 ],
   [ 1287.9139404296875, 1200, 0 ],
   [ 585.965087890625, 1200, 0 ] ],
[  [ 585.965087890625, 487.061767578125, 0 ],
   [ 0, 487.061767578125, 0 ],
   [ 0, 0, 0 ],
   [ 585.965087890625, 0, 0 ] ],
[  [ 585.965087890625, 953.0992431640625, 0 ],
   [ 585.965087890625, 1200, 0 ],
   [ 569.7828979492188, 1200, 0 ] ],
[  [ 41.81578826904297, 1161.03857421875, 0 ],
   [ 0, 1200, 0 ],
   [ 0, 1163.779296875, 0 ] ],
[  [ 580.1929931640625, 1041.1673583984375, 0 ],
   [ 569.7828979492188, 1200, 0 ],
   [ 399.0792541503906, 1200, 0 ] ],
[  [ 0, 1163.779296875, 0 ],
   [ 0, 1111.133544921875, 0 ],
   [ 89.10858917236328, 1116.9739990234375, 0 ],
   [ 401.6077575683594, 1137.45654296875, 0 ],
   [ 41.81578826904297, 1161.03857421875, 0 ] ],
[  [ 513.83740234375, 1099.3597412109375, 0 ],
   [ 399.0792541503906, 1200, 0 ],
   [ 363.21826171875, 1200, 0 ] ],
[  [ 212.83042907714844, 1001.697509765625, 0 ],
   [ 89.10858917236328, 1116.9739990234375, 0 ],
   [ 0, 1111.133544921875, 0 ],
   [ 0, 683.1732788085938, 0 ] ],
[  [ 581.0924682617188, 1027.4437255859375, 0 ],
   [ 580.1929931640625, 1041.1673583984375, 0 ],
   [ 531.968017578125, 1083.4595947265625, 0 ] ],
[  [ 218.05679321289062, 996.8279418945312, 0 ],
   [ 212.83042907714844, 1001.697509765625, 0 ],
   [ 0, 683.1732788085938, 0 ],
   [ 0, 487.061767578125, 0 ],
   [ 121.33873748779297, 487.061767578125, 0 ],
   [ 222.00729370117188, 993.1470947265625, 0 ],
   [ 221.18865966796875, 993.9098510742188, 0 ] ],
[  [ 493.7863464355469, 1112.75732421875, 0 ],
   [ 363.21826171875, 1200, 0 ],
   [ 316.87567138671875, 1200, 0 ] ],
[  [ 581.9526977539062, 1014.3179931640625, 0 ],
   [ 581.0924682617188, 1027.4437255859375, 0 ],
   [ 547.8681640625, 1065.328857421875, 0 ] ],
[  [ 472.1581726074219, 1123.4232177734375, 0 ],
   [ 316.87567138671875, 1200, 0 ],
   [ 246.57061767578125, 1200, 0 ] ],
[  [ 218.82774353027344, 977.1627197265625, 0 ],
   [ 121.33873748779297, 487.061767578125, 0 ],
   [ 186.70594787597656, 487.061767578125, 0 ] ],
[  [ 582.7833862304688, 1001.6444702148438, 0 ],
   [ 581.9526977539062, 1014.3179931640625, 0 ],
   [ 561.265869140625, 1045.2779541015625, 0 ] ],
[  [ 217.25059509277344, 953.0992431640625, 0 ],
   [ 186.70594787597656, 487.061767578125, 0 ],
   [ 217.25059509277344, 487.061767578125, 0 ] ],
[  [ 449.3229675292969, 1131.1746826171875, 0 ],
   [ 246.57061767578125, 1200, 0 ],
   [ 103.31238555908203, 1200, 0 ] ],
[  [ 583.592529296875, 989.2986450195312, 0 ],
   [ 582.7833862304688, 1001.6444702148438, 0 ],
   [ 571.931640625, 1023.6497192382812, 0 ] ],
[  [ 41.81578826904297, 1161.03857421875, 0 ],
   [ 425.6712341308594, 1135.8792724609375, 0 ],
   [ 103.31238555908203, 1200, 0 ],
   [ 0, 1200, 0 ] ],
[  [ 584.387939453125, 977.1627197265625, 0 ],
   [ 583.592529296875, 989.2986450195312, 0 ],
   [ 579.683349609375, 1000.814453125, 0 ] ],
[  [ 299.04986572265625, 1130.734375, 0 ],
   [ 89.10858917236328, 1116.9739990234375, 0 ],
   [ 212.83042907714844, 1001.697509765625, 0 ] ],
[  [ 313.5392761230469, 1131.68408203125, 0 ],
   [ 299.04986572265625, 1130.734375, 0 ],
   [ 255.34739685058594, 1065.328857421875, 0 ] ],
[  [ 241.94981384277344, 1045.2779541015625, 0 ],
   [ 212.83042907714844, 1001.697509765625, 0 ],
   [ 218.05679321289062, 996.8279418945312, 0 ] ],
[  [ 327.26312255859375, 1132.5836181640625, 0 ],
   [ 313.5392761230469, 1131.68408203125, 0 ],
   [ 271.2475280761719, 1083.4595947265625, 0 ] ],
[  [ 231.28392028808594, 1023.6497192382812, 0 ],
   [ 218.05679321289062, 996.8279418945312, 0 ],
   [ 221.18865966796875, 993.9098510742188, 0 ] ],
[  [ 340.3887634277344, 1133.4439697265625, 0 ],
   [ 327.26312255859375, 1132.5836181640625, 0 ],
   [ 289.3782653808594, 1099.3597412109375, 0 ] ],
[  [ 223.53245544433594, 1000.814453125, 0 ],
   [ 221.18865966796875, 993.9098510742188, 0 ],
   [ 222.00729370117188, 993.1470947265625, 0 ] ],
[  [ 353.0618896484375, 1134.2745361328125, 0 ],
   [ 340.3887634277344, 1133.4439697265625, 0 ],
   [ 309.4291687011719, 1112.75732421875, 0 ] ],
[  [ 365.40875244140625, 1135.0838623046875, 0 ],
   [ 353.0618896484375, 1134.2745361328125, 0 ],
   [ 331.0573425292969, 1123.4232177734375, 0 ] ],
[  [ 377.5444030761719, 1135.8792724609375, 0 ],
   [ 365.40875244140625, 1135.0838623046875, 0 ],
   [ 353.8926696777344, 1131.1746826171875, 0 ] ],
  ])
FishOrBear commented 4 years ago

This result is very good, can I experience it on the current v2 branch? If the algorithm is available, I can test more examples.

update: I have seen it on https://github.com/jscad/OpenJSCAD.org/pull/499 and I am ready to try

z3dev commented 4 years ago

The new function is still under testing. Please wait a few more days.

FishOrBear commented 4 years ago

@z3dev OK, look forward to your good news.