In this exercise we’re going to be editing grading elevations particularly with a building pad currently I’m in the 07 grading -4 drawing which is located in your tutorials folder which you can find in the link in the description down below now as we look at this grading pad we know that this is a grading object and we have a couple different colors going on here the green represents the fill and the red represents the cut we also have within our surfaces a building pad surface I’m going to right click on this go to surface properties and I’ll change the style to uh let’s go with uh Contours background see what that looks like click apply then okay then you can vaguely see the Contours of this surface what if I change it
to a different surface Style border and elevations let’s try that what does that look like click okay huh that looks interesting doesn’t it so there’s a lot of different ways of being able to show your grading object surface if you’ve generated that with automatic surface creation from the start I’m going to turn this surface style off go back into surface properties just because I want to be able to see what’s going on with my grading object click apply then okay so now we have our GR gring object and we have this white line which is again a feature line that is the base line that our grading object is built off of so in other words the feature line has set elevations and our grading object essentially grades down or up to an existing grade surface we’re going to begin by selecting our feature line and then click on the elevation editor we get all of these different elevations that as I click through all of these stations you can see a triangle that pops up that shows me the position of that elevation what we’re going to do is we’re going to change some elevations here we’re going to change multiple elevations we’ll do that by selecting the third and then holding down shift and selecting the fourth elevation listed and we’ll click on the elevation and type in 730 and see what happens to our grading when we do that we get this massive cut that shows up within our grading object now I want to bring your attention to the feature line if I click on this button to Quick elevation edit I can see what my elevations are we’ve got 740 here we’ve got a grade of NE 4.5 94% and it stays consistent
until we get to this zero grade then it comes around and now we’re jumping to was that -6% or so so what I would like to do is make that a consistent slope all the way around and the way that I do that is I’ll go ahead and go to my grading elevation editor and now I get my first elevation and I’ll shift click all the way down to the fourth row and this is where it looks like our grade is changing if I click this button to flatten grades or elevations I can choose to make it a constant elevation or a constant grade I’m going to make it a constant grade see what happens when I click okay and now it makes things more of a constant grade along this feature line if I go ahead and click this check check box go back to my quick elevation editor and take a look at the consistency of my slope yep that looks pretty consistent here all the way until I get to this point so essentially if you’re looking for just a smooth transition from grade to grade using the quick elevation editor and using the flatten Button as a great way to be able to accomplish that lastly if we go into our grading elevation editor we’ve got a lot of rows that show up here that are kind of redundant in a way what if I only want to see the elevations that show a grade break well if I select this button it’ll remove all of those redundant rows more or less and it’ll only show the rows that show a grade break so what I’ll do is for Row one I’m going to change the grade ahead to 3% and you can see how that changes our gradings so these are just some of the ways of being able to edit your gradings within civil 3D
