Shape Trapezoidal
C3D ShapeTrapezoidal — reusable trapezoidal shape publishing slope/width outputs
At a glance
| |
|---|
| Kind | Subassembly (composed into an assembly) |
| Domain | Road |
| Civil 3D equivalent | ShapeTrapezoidal |
| Geometry | 4 points, 4 links, 1 shapes |
| Targets | 1 (surface / offset / elevation targets this subassembly can be linked to) |
Parameters
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 |
Width | number (metres unless the description says otherwise) | 2.4 | Top width (m) |
DefaultCrossSlope | cross slope as a ratio (−0.02 = 2 % fall) | -0.02 | Top cross slope |
SlopeDirection | number (metres unless the description says otherwise) | 0 | 0 = away from crown, 1 = towards crown |
InsideDepth | number (metres unless the description says otherwise) | 0.25 | Depth at the attach (m) |
OutsideDepth | number (metres unless the description says otherwise) | 0.125 | Depth at the outer edge (m) |
Points
Point codes are what feature lines, styles and quantity take-off match on — they are the contract this subassembly publishes.
| Point | Code | Placed | From | Expression |
|---|
P1 | — | placed at the attachment point (an absolute offset/elevation) | — | 0 / 0 |
P2 | — | offset + elevation delta from the reference point | P1 | Side*W / W*SL |
P3 | — | offset + elevation delta from the reference point | P1 | 0 / 0-InsideDepth |
P4 | — | offset + elevation delta from the reference point | P2 | 0 / 0-OutsideDepth |
Links
| Link | Code | Between | Role |
|---|
L1 | — | P2 → P1 | drawn |
L2 | — | P1 → P3 | drawn |
L3 | — | P4 → P2 | drawn |
L4 | — | P3 → P4 | drawn |
Shapes (materials)
| Shape | Material code | Boundary points |
|---|
S1 | — | P1, P2, P4, P3 |
Generated page. The tables above are read from the built-in catalogue itself (yu3d_stock_dump), so they always match the version of yucad3d you are running.