2. Next, create a new volume surface. There two methods for volume surface which are TIN volume or GRID volume. Choose either one and select your surfaces appropriately as shown in the diagram below:
3. Notice that when you hover your cursor (crosshair) over your Volume Surface, it will give you a +ve or –ve values depending on whether the area yield cut or fill as shown. 
4. Once you have your Volume Surface created, you can begin to generate the Cut and Fill shade. In order to do that, you’ll need to go to the surface properties and choose the Elevation Banding (2D) (provided if you’ve created your drawing via the _Autodesk Civil 3D (Metric) NCS Classic template). Buzz me if you need illumination.5. Subsequently, go to the Analysis tab. Choose only 2 ranges and click on run analysis. Change the Maximum Elevation values for ID no. 1 to 0 and the Minimum Elevation values for ID no. 2 to 0.
6. Click ok and you’re done. You might observe that at times your surface doesn’t mirror the surface you have in mind. Don’t fret, make use of the edit features under the surface properties i.e.; you can add Boundaries to show only the extent if your working area, cut/fill only…etc.7. Last but not least, I have some engineers who came to me and ask whether C3D can generate the Cut and Fill shade in hatch pattern instead of hatch solid. Well the there is a workaround. The good thing with C3D is it comes together with AutoCAD and therefore it has the best of both worlds. What you need to do is to export the completed drawing to AutoCAD (File>Export>Export to AutoCAD)
8. Open your drawing using Civil3D as AutoCAD and you’ll notice that the solid hatch representing the cut and fill is not in 1 piece. This is the tedious part. You’ll need then to edit the hatch solid to another hatch pattern of your choice and inherit the properties using Match Properties. It’s not that hard after all…
Happy trying.Tác giả : Wendy Lim Petaling Jaya, Selangor, Malaysia
Cut/Fill Grid Ticks in Civil 3D
Trả lờiXóaCurrently, there is no tool to add grid ticks in Civil 3D 2006 as we had available in Land Desktop. However, it is possible to represent Grid Ticks in Civil 3D in almost the same manner as Land Desktop by this work around.
You must first have an existing ground surface and a finished ground surface that you can compare by creating a TIN Volume Surface in Civil 3D. After creating the TIN Volume Surface, you can then theme the surface with elevation analysis to determine the areas of cut and fill. I recommend using light to dark red to represent areas of lighter to deeper cut, and use light to dark blues to represent less to more fill, respectively.
Once you have done this, you can right click on Points in your prospector and select the Create option, then on the Create Points toolbar, select the "Surface: On Grid" option which will place Points with elevations on the TIN Volume surface, which measures relative elevation to the Existing Ground. It will show negative signs before the value for those areas of cut and represent areas of fill by a postive number.