CAD
STREAM is CAD software for terrain that sits right next to your CAD workflow. Bring DXF drawings onto the real terrain, draw and edit vectors that follow the surface, and send contours, cross-sections and volumes straight back out as clean DXF — no round-trips, no cloud.
CAD is where drawings and deliverables live; terrain is where the ground truth is. STREAM bridges the two: it opens DXF in true position over the DEM, and produces the CAD outputs a survey or civil project needs.
It's not a general drafting tool — it's the terrain side of a CAD workflow, focused on getting accurate vectors and drawings in and out.
Import DXF drawings onto the terrain and export vectors, contours and cross-sections back to DXF, keeping layers.
Draw points, lines and areas that drape on the DEM at true elevation, organized into layers with snapping.
Generate station-based cross-section drawings with a cubature (volume) table, exported as DXF.
Triangulate a TIN surface from break points, and generate editable contour vectors at any interval.
Load the drawing; the layer structure comes with it so you can switch parts of it on and off.
Confirm the coordinate system. If the drawing sits off the terrain, fix the assignment or apply an offset rather than editing the source file.
Project the drawing onto the terrain so its geometry picks up elevations from the real ground instead of sitting flat.
Triangulate a TIN from the drawing's break points, or generate contours at the interval the drawing needs.
Send sections, contours and design geometry out as DXF, keeping the layers your CAD workflow expects.
Yes. STREAM imports DXF drawings onto the terrain and exports vectors, contours and cross-section drawings back to DXF, keeping the layer structure.
Yes. STREAM generates station-based cross-section drawings with a cubature table and exports them as DXF.
No — it's the terrain side of the workflow. It gets accurate vectors, contours and sections in and out of CAD via DXF.
Probably not. If you just want to view a drawing, a lightweight DXF viewer will open it faster. STREAM earns its place when the drawing has to sit on real ground: draped at true elevation over the DEM, checked against the coordinate system, and turned into contours, sections and volumes you can export back to CAD.
Free beta for Windows x64. Works fully offline with GeoTIFF, LAS/LAZ and DXF.
Download STREAM free