Defaults are the metric values the palette inserts. Every parameter can be driven by an expression or a target.
| Parameter | Type | Default | Meaning |
Side | +1 right of the baseline, −1 left | Right (+1) | +1 Right / -1 Left |
DitchBottomWidth | number (metres unless the description says otherwise) | 1 | Ditch bottom width (m) |
InsideWallThickness | number (metres unless the description says otherwise) | 0.6 | Inside wall thickness at bottom (m) |
OutsideWallThickness | number (metres unless the description says otherwise) | 0.6 | Outside wall thickness at bottom (m) |
DitchOpeningAtLid | number (metres unless the description says otherwise) | 2 | Ditch opening at the lid (m) |
InsideWallThicknessAtLid | number (metres unless the description says otherwise) | 0.45 | Inside wall thickness at the lid (m) |
DitchBedDepth | number (metres unless the description says otherwise) | 0.6 | Bed (bottom slab) depth (m) |
DitchDepth | number (metres unless the description says otherwise) | 2 | Clear ditch depth (m) |
InsideLidDepth | number (metres unless the description says otherwise) | 0.6 | Lid depth at the inside edge (m) |
OutsideLidDepth | number (metres unless the description says otherwise) | 0.45 | Lid depth at the outside edge (m) |
LidGapToOpening | number (metres unless the description says otherwise) | 0 | Gap between lid and opening (m) |
OutsideWallThicknessAtLid | number (metres unless the description says otherwise) | 0.45 | Outside wall thickness at the lid (m) |
OutsideHingePointDepth | number (metres unless the description says otherwise) | 0 | Outside hinge point depth (m) |
InsideDaylightSlope | cross slope as a ratio (−0.02 = 2 % fall) | 1 | Inside daylight slope (rise/run) |
InsideBenchWidth | number (metres unless the description says otherwise) | 1.5 | Inside bench width (m) |
InsideBenchSlope | cross slope as a ratio (−0.02 = 2 % fall) | 0.04 | Inside bench slope |
InsideDaylightWidth | number (metres unless the description says otherwise) | 1 | Inside daylight width (m) |
OutsideDaylightWidth | number (metres unless the description says otherwise) | 1 | Outside daylight width (m) |
OutsideDaylightSlope | cross slope as a ratio (−0.02 = 2 % fall) | 1.5 | Outside daylight slope (rise/run) |
OutsideBenchWidth | number (metres unless the description says otherwise) | 0.04 | Outside bench width (m) |
OutsideBenchSlope | cross slope as a ratio (−0.02 = 2 % fall) | 1 | Outside bench slope |
| Point | Code | Placed | From | Expression |
P19 | — | placed at the attachment point (an absolute offset/elevation) | — | 0 / 0 |
P20 | — | offset + elevation delta from the reference point | P19 | Side*InsideDaylightWidth / -InsideDaylightWidth*abs(InsideDaylightSlope) |
P1 | Ditch_In,Ditch_Back | offset + elevation delta from the reference point | P20 | Side*InsideBenchWidth / -InsideBenchWidth*abs(InsideBenchSlope) |
P2 | Ditch_Lid_Face | offset + elevation delta from the reference point | P1 | Side*InsideWallThicknessAtLid / 0 |
P5 | — | offset + elevation delta from the reference point | P2 | 0 / -(InsideLidDepth+LidGapToOpening) |
P3 | Ditch_Lid_Face | offset + elevation delta from the reference point | P1 | Side*(InsideWallThicknessAtLid+DitchOpeningAtLid) / -(InsideLidDepth-OutsideLidDepth) |
P4 | Ditch_Back | offset + elevation delta from the reference point | P3 | Side*OutsideWallThicknessAtLid / 0 |
P10 | — | offset + elevation delta from the reference point | P3 | 0 / -(OutsideLidDepth+LidGapToOpening) |
P11 | — | offset + elevation delta from the reference point | P1 | Side*(InsideWallThicknessAtLid+DitchOpeningAtLid+OutsideWallThicknessAtLid-InsideWallThickness-DitchBottomWidth-OutsideWallThickness)*(InsideLidDepth+LidGapToOpening+DitchDepth+DitchBedDepth)/((InsideLidDepth+LidGapToOpening+DitchDepth+DitchBedDepth)+(OutsideLidDepth+LidGapToOpening+DitchDepth+DitchBedDepth)) / -(InsideLidDepth+LidGapToOpening+DitchDepth+DitchBedDepth) |
P12 | — | offset + elevation delta from the reference point | P4 | -Side*(InsideWallThicknessAtLid+DitchOpeningAtLid+OutsideWallThicknessAtLid-InsideWallThickness-DitchBottomWidth-OutsideWallThickness)*(OutsideLidDepth+LidGapToOpening+DitchDepth+DitchBedDepth)/((InsideLidDepth+LidGapToOpening+DitchDepth+DitchBedDepth)+(OutsideLidDepth+LidGapToOpening+DitchDepth+DitchBedDepth)) / -(OutsideLidDepth+LidGapToOpening+DitchDepth+DitchBedDepth) |
P7 | — | offset + elevation delta from the reference point | P11 | Side*InsideWallThickness / DitchBedDepth |
P8 | — | offset + elevation delta from the reference point | P12 | -Side*OutsideWallThickness / DitchBedDepth |
P6 | — | offset + elevation delta from the reference point | P7 | -Side*(InsideWallThicknessAtLid+DitchOpeningAtLid+OutsideWallThicknessAtLid-InsideWallThickness-DitchBottomWidth-OutsideWallThickness)*DitchDepth/((InsideLidDepth+LidGapToOpening+DitchDepth+DitchBedDepth)+(OutsideLidDepth+LidGapToOpening+DitchDepth+DitchBedDepth)) / DitchDepth |
P9 | — | offset + elevation delta from the reference point | P8 | Side*(InsideWallThicknessAtLid+DitchOpeningAtLid+OutsideWallThicknessAtLid-InsideWallThickness-DitchBottomWidth-OutsideWallThickness)*DitchDepth/((InsideLidDepth+LidGapToOpening+DitchDepth+DitchBedDepth)+(OutsideLidDepth+LidGapToOpening+DitchDepth+DitchBedDepth)) / DitchDepth |
P13 | — | offset + elevation delta from the reference point | P11 | Side*(InsideWallThickness+DitchBottomWidth+OutsideWallThickness)/2 / 0 |
P14 | — | offset + elevation delta from the reference point | P7 | Side*DitchBottomWidth/2 / 0 |
P15 | Lid_Top | offset + elevation delta from the reference point | P2 | Side*LidGapToOpening / 0 |
P16 | Lid_Top | offset + elevation delta from the reference point | P3 | -Side*LidGapToOpening / 0 |
P17 | — | offset + elevation delta from the reference point | P15 | 0 / -InsideLidDepth |
P18 | — | offset + elevation delta from the reference point | P16 | 0 / -OutsideLidDepth |
P21 | Ditch_Back_Fill | offset + elevation delta from the reference point | P16 | if(OutsideHingePointDepth<=0,Side*(OutsideWallThicknessAtLid+LidGapToOpening),-Side*(InsideWallThicknessAtLid+DitchOpeningAtLid+OutsideWallThicknessAtLid-InsideWallThickness-DitchBottomWidth-OutsideWallThickness)*OutsideHingePointDepth/((InsideLidDepth+LidGapToOpening+DitchDepth+DitchBedDepth)+(OutsideLidDepth+LidGapToOpening+DitchDepth+DitchBedDepth))) / -OutsideHingePointDepth |
P22 | — | offset + elevation delta from the reference point | P21 | Side*OutsideBenchWidth / OutsideBenchWidth*abs(OutsideBenchSlope) |
P23 | Ditch_Out | offset + elevation delta from the reference point | P22 | Side*OutsideDaylightWidth / OutsideDaylightWidth*abs(OutsideDaylightSlope) |