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Hardscape Grading

2.3_Hardscape Grading

0:01 After completing the terrain and grading exercises, we’re now ready to jump back into our park model.

0:08 Here’s where we last left off.

0:10 I’ve assigned the grading sketch plan to its own layer and turned it off…but I know it’s still there in the event I need to check spot elevations or contours at any time.

0:21 Let’s start with the curved walk to the south that leads up to the upper plaza.

0:27 We know that we’re tying into the walk at 384 so let’s raise the flat face up to match that.

0:36 From here, the difference in height between the lower walk and upper walk is 6 feet.

0:42 In order to make a sloped walk, we need to start by drawing some vertical reference lines that we’ll then connect to form a boundary...

0:51 ...which we can then Sandbox using the ‘From Contours’ tool.

0:55 Checking the grading plan, we can see a contour line crossing the walk near the bottom.

1:03 So let’s enter the walk group and draw a vertical line 1 foot in height at the curve tangent between the long inside curve and the smaller flare-out piece.

1:16 If we look closely, the flare-out is actually drawn as two curves so let’s draw some more verticals at the tangent and mid-points.

1:26 Let’s draw a vertical line ‘0.75' feet high for the first curves mid-point…

1:35 …another ’0.5’ feet high for the end point between the two arcs…

1:39 …and then one more at ‘0.25’ feet high for the mid-point of the last arc.

1:45 We can now connect the verticals using the arc tool – Make sure to snap to the end and midpoints.

2:00 Let’s repeat that process for the other side of the walk.

2:05 This time using ‘0.75’ feet for the tangent end point and ‘0.375’ feet for the arc mid-point.

2:14 The lower numbers here are because the curve starts past the 1 foot contour line closer to the bottom of the walk.

2:22 Then we can connect them using arcs the same as before.

2:29 We can now do the long part of the walk.

2:33 Here we’re rising 6 feet up so the mid-point verticals are both ‘3’ feet high.

2:41 Then connect both with arcs and we’ve got a completed boundary that we can now Sandbox.

2:55 Just select all the bounding edges…

3:04 …and then run ‘From Contours’...and we’ve got a surface.

3:13 We can then explode the mesh group and then group and delete the little extra bits we don’t want or need.

3:26 Also note that you also can use SoapSkinBubble on this surface as well.

3:34 Since we want to keep it flat we just won’t apply any pressure to the skin.

3:44 And then go in and soften the grid lines...

3:50 …and we’re all set.

3:56 We can now run ‘Joint or Vector Push Pull’ like we did in our exercise, to give the walk a thickness.

4:03 Let’s try 6 inches this time to give us a bit of extra room should we need it.

4:10 When using 'Vector PushPull', it may erase your top face like it has here for me…but don’t worry, just copy the bottom face up and place it where it was before.

4:22 Let’s do this once more together on another walk, but this time, we’ll still use the 'From Contours' method, but we’ll use contour lines instead of edges.

4:34 I’ll turn on the grading reference plan really quick to see that there are two contour lines that cut across the walk.

4:40 Then, going then going into our walk group, I’ll draw those lines in.

4:46 They don’t have to be perfect because “close enough” is what we’re after here.

4:52 Next, I’ll copy those contour lines up 1 foot for the first line...

5:01 ...and two feet for the second.

5:04 Then select the bottom edge, both contours, and the top edge and run ‘From Contours’ again.

5:16 We now have our walk mesh but as you can see it’s much wider than actually we need.

5:21 So the trick here is to delete the contour lines we drew...then copy the flat face up above the Sandboxed mesh so that we can drape it’s boundary downward.

5:35 Select the copied flat surface first…then the ‘Drape’ tool…then the Sandboxed sloped mesh.

5:46 Now we have the walk’s boundary separated so we can safely delete the extra mesh areas we don’t want.

5:56 Let’s now delete the flat walk surface that we used to drape

6:05 ...and then use ‘Joint or Vector Push Pull’ again in order to give the walk a thickness like before.

6:14 This last step is optional but sometimes the model looks cleaner without the joint lines between the flat areas and slopes.

6:23 If we delete them we would lose our faces so instead we’ll hide them by either holding shift while erasing each one…

6:31 …or, if easier, we can select them all and hide using a keyboard shortcut as I’ve assigned just for this kind of thing.

6:50 I’ll go ahead and do the rest of the walks now but without narrating step-by-step as the process is the same using either the Sandbox form edges, Sandbox from contours, or SoapSkinBubble methods.