topic Re: Importing .tiff raster image to civil 3D and creating topology/surface in Civil 3D Forum

Importing .tiff raster image to civil 3D and creating topology/surface

shershahbacha9 — Sun, 13 Oct 2019 12:07:11 GMT

I have a .tiff raster image which i am sharing here . i want to import it to civil 3D and create surface/topology out of it. i somehow got a method to import it to civil 3D but dont know how can i make surface/topology out of it . i also tried by the option "create surface by DEM" but its not working . you can see the image format attached here.

Re: Importing .tiff raster image to civil 3D and creating topology/surface

rl_jackson — Sun, 13 Oct 2019 12:17:02 GMT

See if this information helps.

https://forums.autodesk.com/t5/civil-3d-forum/creating-surface-from-geotiff-dem/m-p/7826894#M364958

Re: Importing .tiff raster image to civil 3D and creating topology/surface

Pointdump — Sun, 13 Oct 2019 12:57:16 GMT

Bacha,
Your Tiff is just a Raster Image with no usable Elevation Data for C3D to create a Surface from. QGIS says it's in ETRF89.TM32 (EPSG:3044) Projection, and that seems to line up nicely with Bing Live Maps. You can use MAPCONNECT to bring in the image, but you won't be able to create a Surface from it.

Dave

Re: Importing .tiff raster image to civil 3D and creating topology/surface

Pointdump — Sun, 13 Oct 2019 13:06:04 GMT

Bacha,
If you'd like some serious, kick-butt LiDAR Elevation Data, look >>>Here<<<.
Dave

Re: Importing .tiff raster image to civil 3D and creating topology/surface

shershahbacha9 — Sun, 13 Oct 2019 13:06:33 GMT

you mean i cannot produce surface in just Civil 3D or also in QGIS we cannot produce surface

Re: Importing .tiff raster image to civil 3D and creating topology/surface

shershahbacha9 — Sun, 13 Oct 2019 13:09:29 GMT

Yes Dave . i need a source in Germany which is more reliable so that i make a surface/topography out of it and import it into Revit so that in the end while placing my building on 3d site , i know my required cut and fill

Re: Importing .tiff raster image to civil 3D and creating topology/surface

Pointdump — Sun, 13 Oct 2019 13:10:10 GMT

Bacha,
Nope. You won't be able to create a Surface with that Raster Image.
Dave

Re: Importing .tiff raster image to civil 3D and creating topology/surface

samir_rezk — Sun, 13 Oct 2019 14:36:41 GMT

Hi @shershahbacha9

It won’t be a straight forward approach, but you can use AutoCAD Raster Design to vectorize the image, and/or create analysis styles that better help visualize the terrain.

Take a look at this toolset:

https://www.autodesk.com/products/autocad/included-toolsets/autocad-raster-design

hope this helps,