puts "========"
puts "OCC22750"
puts "========"
puts ""
#######################################################
# Boolean operation: Bug in Fuse
#######################################################

# Step 1: Create surface wing

# Create sections as ellipses 2D (possible to create directly in 3D)
ellipse e1 0 0 30 20
ellipse e2 0 0  20 10
ellipse e3  0 0 16 8

# Convert 2d Curves in 3d Curves, and place them along Z axis
to3d ee1 e1
to3d ee2 e2; translate ee2 0 0 100
to3d ee3 e3; translate ee3 0 0 200

rotate ee2 0 0 100 0 1 0 10
rotate ee3 0 0 200 0 1 0 20

#Approximate the ellipses by Bsplines
appro c1 16 ee1
appro c2 16 ee2
appro c3 16 ee3

#Make a surface by approximation passing throught a set of curves
# and create a face
appsurf s1 c1 c2 c3
mkface f1 s1

#Make a surface by approximation passing throught a set of ellipse
# and create a face
appsurf s2 ee1 ee2 ee3
mkface f2 s2

# Step 2: Create surface for fuselage

#Create circles in 3D along axe X
circle c1 -100 0 0 1 0 0 10
circle c2 -50 0 0 1 0 0 30
circle c3 50 0 0 1 0 0  29
circle c4 100 0 0 1 0 0 20
circle c5 150 0 0 1 0 0 10

#Make a surface by approximation passing throught a set of circles
# and create a face
appsurf s3 c1 c2 c3 c4 c5
mkface f3 s3


# Step 3: Create a Solid for the Wing
# Build edges from ellipse, wires with edges, faces on wires
# It's necessary to sew the faces to create the Shell, because the faces don't shared the same edge
#sewing will create a shell, it remains to create the solid from the shell

mkedge ed1 ee1
mkedge ed3 ee3

wire w1 ed1
wire w3 ed3

mkplane f5 w1
mkplane f6 w3

sewing r f2 f5 f6
###mksol so1 r
shape so1 So
add r so1

checkshape so1
# The shape so1 is valid

#Step 4: Create a Solid for fuselage
# We will extract the edge from the face f3, and use them to buid faces, the edge will be shared and we 
# can rebuild a sh and a solid with the basic and fast method

nexplode f3 e
#nexplode give same order of exploration in different sessions

wire w1 f3_1
wire w3 f3_3
mkplane f7 w1 1
mkplane f8 w3 1

mkvolume so2 f3 f7 f8 -ni
checkshape so2

# Step 5: Fuse the Wing to the fuselage
ttranslate so1 0 0 10
bop so1 so2
bopfuse rrr

checkshape rrr
checknbshapes rrr -face 5 -wire 5 -shell 1 -solid 1
checkprops rrr -s 57448.9 -v 664969

# Step 6: Create the othe wing using copy and rotation
tcopy so1 so3
trotate so3 0 0 0 1 0 0 180

# Step 7: Fuse the Wing to the fuselage
bop rrr so3
bopfuse result

checkshape result
checknbshapes result -wire 8 -face 7 -shell 1 -solid 1
checkprops result -s 73752.9 -v 784375

checkview -display result -2d -path ${imagedir}/${test_image}-2d.png