2D to 3D cross-section converter
Extrude any 2D cross-section into a true 3D model online. Import a DXF, a CSV of X,Y points or draw the section parametrically, and Dimviz sweeps it into a depth-buffered 3D render with sharp edges and dimension lines — because a profile is exactly a 2D section pushed along a line, the result is geometry, not a guess.
- ◆DXF / CSV / Excel or parametric section → real 3D
- ◆Depth-buffered — no clipping, no z-fighting, no melt
- ◆Dimension callouts + section properties from one section
DXF (LWPOLYLINE/CIRCLE) · CSV/XLSX with X,Y columns (blank row = new loop). DWG → export as DXF first.
EL 23,000 MPa · Pultruded FRP (E-glass / polyester)
| Area | A | 3552 | mm² |
| Mass / metre | m | 6.749(4.535 lb/ft) | kg/m |
| 2nd moment | Ix | 1.819e+7 | mm⁴ |
| 2nd moment | Iy | 950525 | mm⁴ |
| Section mod. | Sx | 181929 | mm³ |
| Section mod. | Sy | 21471 | mm³ |
| Gyration | rx | 71.57 | mm |
| Gyration | ry | 16.36 | mm |
| Torsion | J | 170496 | mm⁴ |
| Published catalogue weight: 6.80 kg/m · computed Δ -1% | |||
Derived exactly from the section polygon (Green’s theorem). Fillets excluded (<2% effect). Verify against certified data before release.
A game-asset mesh isn't a spec. A dimension-true render is.
- · Warped surface, wobbling polygons
- · No scale, no wall thickness, no datum
- · Fine for a game — garbage in a TDS
- · Sharp edges, 100% linear extrusion of your section
- · Auto h · w · t dimension lines that track the view
- · Built for product manuals & TDS compliance
2D to 3D without a mesh-guessing AI
For a constant section the 3D is deterministic: extrude the outline. Dimviz reads the closed loops (outer boundary + holes), extrudes them and resolves visibility with the depth buffer, so faces occlude correctly and the silhouette is exactly your input. No hallucinated topology, no warped walls.
Every dimension stays true — and visible
Overall height and width, the centroidal axes y–y and z–z, and per-shape wall/flange thicknesses are annotated in 3D and reproject every frame, so as you orbit and zoom the callouts follow. It reads like an engineering drawing that happens to be three-dimensional.
The numbers come free
The same section that becomes the 3D model yields area, weight per metre, second moments of area, section moduli and torsion — computed exactly. Change a wall thickness and the model, the callouts and the datasheet update in lock-step.
FAQ
How do I convert a 2D drawing to 3D?+
Import the section as DXF or CSV (or draw it), and Dimviz extrudes the closed outline into a true 3D render with dimension callouts and computed properties. Export as PNG.
Is it real 3D or a fake 2.5D projection?+
Real 3D — the section is extruded into a mesh you can orbit and zoom, rendered with a depth buffer so occlusion is correct. The geometry is exactly your section.
What file formats can I import?+
DXF (LWPOLYLINE / POLYLINE / CIRCLE), CSV and Excel with X,Y coordinate columns. DWG must be exported to DXF first.