!!omap
- name: jet_pump
- parts:
  - name: head
    shapes:
      libraries: ['from math import tan, radians, degrees, sin, cos, atan2, pi', 'from pysketcher import *']
  - name: constants
    shapes:          # All dimenssions in cm angles in degrees
        Ljp: 16.0    # Total length
        Lcy: 1.5     # Lenght of input cylindre
        Lcon: 3.0    # length of input cone
        Lmix: 2.0    # Length of mixing chamber cylinder
        Lct: 1.0     # Length of penetration of jet cone inside cone mixing chamber
        Lt: 5.0      # Length of transit cylinder
        Ld: 4.0      # length of diffussion cone
        D: 4         # external diameter
        Din: 2.5     # Input cylinder internal diameter
        Dout: 2.5    # Output internal Diameter
        Dn: 0.5      # Nozzle internal diametre
        Dmix: 3.5    # Diameter mixing chamber
        einc: 0.25   # Thickness of the jet cone
        eain: 0.2    # air input pipe thickness
        x0: 1        # x drawing padding
        y0: 1        # y drawing padding
        H: 2.0       # Air pipe heigth
        N: 0.75      # position of the nozzle exit with respect to mixing chamber output cone start
  - name: frame
    shapes:
        Dt: D/3
        setframe:          # sketch setup
            action: drawing_tool.set_coordinate_system(xmin=0, xmax=Ljp+2*x0,
                                   ymin=0, ymax=H+2*y0+D*1.5,
                                   axis=False)
        setblackline:      # default frame values and actions
            action: drawing_tool.set_linecolor('blue')
  - name: part0
    shapes:
        P01: Point(x0,y0+H)
        P02: P01 + Point(0,(D-Din)/2)
        P03: P02 + Point(Lcy,0)
        P04: P03 + Point(Lcon,(Din-Dn)/2)
        alpha: atan2((P04.y-P03.y),(P04.x-P03.x))
        P05: P04 - Point(0,einc/cos(alpha))
        P06: P05 - Point((Lmix+N)*cos(alpha),(Lmix+N)*sin(alpha))
        P07: Point(P06.x,y0)
        P08: P07-Point(eain,0)
        P09: P08+Point(0,H)
        p0: |
            [P01,P02,P03,P04,P05,P06,P07,P08,P09,P01]
        part0: 
            formula: Trajectory(p0)
            style:
                filled_curves: 
                    pattern: '/'
        Lmixcone: Ljp-Ld-Lt-2*eain-Lmix-(P09.x-P01.x) # length of the mixing chamber cone
        P11: Point(P07.x+Lmix,y0)
        P12: P11 + Point(0,H+(D-Dmix)/2)
        P13: P12 + Point(Lmixcone,(Dmix-Dt)/2)
        P14: P13 + Point(Lt,0)
        P15: P14 + Point(Ld,-(Dout-Dt)/2)
        P16: P15 - Point(0,(D-Dout)/2)
        P17: P16 - Point(Ld+Lt+Lmixcone-eain,0)
        P18: P17 - Point(0,H)
        p1: |
               [P11,P12,P13,P14,P15,P16,P17,P18,P11]        
        part1:
            formula: Trajectory(p1)
            style:
                filled_curves:
                    pattern: '/'
        P21: Point(x0,y0+H+D)
        P22: P21 + Point(Ljp-eain,0)
        P23: P22 + Point(0,-(D-Dout)/2)
        P24: P23 + Point(-Ld,-(Dout-Dt)/2)
        P25: P24 + Point(-Lt,0)
        P26: P25 + Point(-Lmixcone, (Dmix-Dt)/2)
        P27: P26 + Point(-(Lmix),0)
        P2C: P21 + Point(0,-(D-Din)/2)
        P2B: P2C + Point(Lcy,0)
        P2A: P2B + Point((Lcon+eain)*cos(alpha),-(Lcon+eain)*sin(alpha))
        P29: P2A + Point(0,einc/cos(alpha))
        P28: P29 + Point(-(Lmix+N)*cos(alpha), (Lmix+N)*sin(alpha))
        p2:  |
               [P21,P22,P23,P24,P25,P26,P27,P28,P29,P2A,P2B,P2C]
        part2:
            formula: Trajectory(p2)
            style:
                filled_curves:
                    pattern: '/'
        venturi: |  
            Composition({'part0':part0,'part1':part1, 'part2':part2})
        dljp: 
            formula: Distance_wText(P21+Point(0,0.5),P22+Point(0,0.5),r'$L<bslash>textsubscript{jp}$')
            style:
                linecolor: 'black'
                linewidth: 1
        dld: 
            formula: Distance_wText(Point(P14.x,P16.y)+Point(0,-1.5),P16+Point(0,-1.5),r'$L<bslash>textsubscript{d}$')
            style:
                linecolor: 'black'
                linewidth: 1
        dlt: 
            formula: Distance_wText(Point(P13.x,P16.y)+Point(0,-1.5),Point(P14.x,P16.y)+Point(0,-1.5),r'$L<bslash>textsubscript{t}$')
            style:
                linecolor: 'black'
                linewidth: 1
        dlcm: 
            formula: Distance_wText(Point(P12.x,P16.y)+Point(0,-1.5),Point(P13.x,P16.y)+Point(0,-1.5),r'$L<bslash>textsubscript{cm}$')
            style:
                linecolor: 'black'
                linewidth: 1
        dlmix: 
            formula: Distance_wText(Point(P06.x,P16.y)+Point(0,-1.5),Point(P11.x,P16.y)+Point(0,-1.5),r'$L<bslash>textsubscript{mix}$')
            style:
                linecolor: 'black'
                linewidth: 1
        dlin: 
            formula: Distance_wText(P02+Point(0,0.5),P03+Point(0,0.5),r'$L<bslash>textsubscript{in}$')
            style:
                linecolor: 'black'
                linewidth: 1
        dd:
            formula: Distance_wText(P01-Point(0.5,0),P21-Point(0.5,0),r'$D$',alignment='right')
            style:
                linecolor: 'black'
                linewidth: 1
        dn:
            formula: Distance_wText(P04+Point(0.5,0),P2A+Point(0.5,0),r'$D<bslash>textsubscript{n}$')
            style:
                linecolor: 'black'
                linewidth: 1
        ddmix:
            formula: Distance_wText(P12,P26,r'$D<bslash>textsubscript{mix}$',alignment='right')
            style:
                linecolor: 'black'
                linewidth: 1
        ddin:
            formula: Distance_wText(P02+Point(1.5,0),P2C+Point(1.5,0),r'$D<bslash>textsubscript{in}$',alignment='right')
            style:
                linecolor: 'black'
                linewidth: 1
        ddout:
            formula: Distance_wText(P15+Point(0.5,0),P23+Point(0.5,0),r'$D<bslash>textsubscript{out}$')
            style:
                linecolor: 'black'
                linewidth: 1
        ddt:
            formula: Distance_wText(P13,P25,r'$D<bslash>textsubscript{t}$')
            style:
                linecolor: 'black'
                linewidth: 1
        dim:  |
            Composition({'dljp': dljp,'dld': dld,'dlt': dlt,'dlcm': dlcm,'dlmix': dlmix,'dlin': dlin,
                        'ddin': ddin,'ddout': ddout,'ddt': ddt,'dd': dd,'dn':dn,'ddmix': ddmix})
        jet_pump: |
            Composition({'venturi':venturi, 'dim':dim})