This article provides a detailed guide on how to add new information to a grading criteria set, particularly focusing on working with elevations. It discusses the step-by-step process of creating a grading object using the elevation target and setting up grading criteria.
Key Insights
- The article highlights the creation of a new criteria set with a focus on working with elevations. This is achieved by adding new information to the grading criteria set.
- When creating a grading object using the elevation target, it emphasizes the importance of setting a placeholder number, which Civil 3D prompts you with when you create your grading object using this criteria set.
- The article further discusses the versatility of grading criteria, allowing it to do both cut or fill without having to choose between an elevation cut or an elevation fill grading criteria.
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Now that we've created our Grading Criteria Set, we're going to go ahead and add in some new information to that set. I'm going to go ahead and expand out Grading, expand out Grading Criteria Sets, and then I'm going to go ahead and go to my Dev Grad.
I'm going to right-click. I'm going to select New so that we're creating a new criteria set. I'm going to go ahead and go to Target.
I'm going to drop this down. I'm going to select the next one in the list. We already did Surface, so we're going to be working on Elevations now.
So from here, I'm going to go ahead and go back to the Information tab. I'm going to go ahead and type in Elevation, and then I'm going to go back into my Criteria tab. So inside of the Criteria tab for Elevation, we have the elevation that we're going to be targeting.
So it's a set elevation. Like we did when we created these Feature Lines and raised them to a set elevation, this is going to search out a set elevation. This number—this is why I like to have these set up as just a generic placeholder for a single criterion and not create specific criteria.
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As we create a Grading Object using the Elevation target, you're going to end up putting in the elevation that you choose. This number that we're putting in now is just going to be the set number that Civil 3D prompts you with when you create your Grading Object using this criteria set. So I'm going to go ahead and leave it as zero so that if I accidentally select it, the Grading Object will look very strange and I'll know that I did something wrong.
So I'm going to go ahead and leave it as zero. Same thing here. I'm going to go ahead and do Cut and Fill Slopes.
Generally, you're going to pick an elevation that is going to be either just cut or just fill. But this gives us the versatility of allowing it to do both cut or fill, and we don't have to pick between doing an Elevation Cut or an Elevation Fill grading criteria.
So I'm going to go ahead and leave it as Cut Fill Slope. I'm going to go with my Cut Slope Projection Up first. I'm going to go ahead and go Format Slope.
Again, I'm going to change this to 1.5. Same thing here, Fill Format Slope. I'm going to go ahead and go with a slope of 2 to 1. And then again, Interior Corner Overlap. I'm going to go ahead and go with Use Average Slope.
I'm going to go ahead and hit Apply and hit OK. Then I am going to save my drawing, and I'll meet you in the next video.
