In simple terms a site modifier is a special object that will allow Vectorworks to change (or modify) a site model. Not every object can be a site modifier, but there are a large number of objects that can be. A site modifier needs a three-dimensional object to tell Vectorworks where to make the changes to the site model (sometimes called a pad), and it also requires an object to limit the extent of the change (called a grade limits).
This manual is the last manual on the series on site modelling on site modifying because the roading tools quite often used as site modifiers. Don’t forget to refer to the previous two month’s manuals (1506 and 1507) for more information on site modelling. This manual looks specifically at the six different roadway tools:
The Roadway (NURBS)
Roadway (Custom Kerb)
Thelast two tools are very powerful and most of the manual will focus on those.
- creating a site model from an image
- importing a shape file
- using GIS information from a local body website
- site modifier contour mode
- hardscape changes in Vectorworks 2016
- grade limits
- grade tool
- car parking
- creating a site model
- placing site modifiers
- placing a road
This is a great addition to the Site Modifier tool. When you choose this mode, Vectorworks reads the elevation of the countour that you are snapping to and sets the elevation of the site modifier to this elevation. This saves so much time when placing site modifiers. No more guessing or placing 3D loci to get the correct elevation.
Vectorworks 2016 has a change to the Site Modifiers tool. The change is that all the Site Modifier options are now on the Tool bar, shown as modes. Now when you want to place a grade limits, you can choose that mode, if you want you place a Pad, you can choose that mode. This change might seem like a small change, but it is one of those changes that makes a big difference to your workflow, making it easier to chose the correct mode for the job.
In the previous month we looked at creating a site model, which is great but we will need to modify the site. That is what this manual is all about, Site Modifiers. A Site Modifier is a specific object for changing a site model. A Site modifier can be a range of objects, but their intention is to change the form of the site model. Vectorworks includes a several tools for creating site modifiers. Some tools are designed to create other objects (hardscape, massing model, roads, etc), and they have options to create site modifiers as well. Some tools are designed to report information about the site or they can be used as site modifiers (Stake, Grade). Continue reading
In this session we looked at site modelling again. In particular, we looked at a special case where we wanted to create site modifiers above the site model (it’s actually a construction pad above the level of the site model for drainage). This is probably the first time that we have looked at the concept of site modelling, how it actually works and I’ve drawn an example to show exactly how Vectorworks calculates the contours.
Intermediate – Normally, you have to use a grade limits with a site modifier, but not when use a pad with retaining edge. In this image you can see a pad with a vertical retaining each. At the bottom you can see the red outline itches the pad, and at the top you can see the red outline which is the retaining edge. Vectorworks will create the retaining edge to sit at exactly the right height for the existing site model if you use the command Send to Surface.
In this session we look at site modifiers. We started by looking at a site without any site modifiers at all and we use the technique of drawing simple objects (rectangles) and adding them together to create a polygon. There is a command from the right click (contextual menu) called create objects from shapes. We use this command to turn our polygon into a site modifier.
In the sections we look at the Vectorworks roading tools. Roading is a slight challenge for Vectorworks, and that it’s not really a roading design package (which is a sophisticated topic) but it does have roading tools that can be used to create the majority of the things you need. I kept roading out of the site modifiers sessions so that we could give them adequate time.
In this session we looked at the report from the earlier landscape session, but the users pointed out that the previous report only look for flat objects which is not much use on a sloping site. So the session took the report from the early session in tried to update it so that it would work with objects on a sloping site.
There are several options for site modifying. You can add extra source data into the site model to modify it, and you can use site modifiers like roads (good for roads and paths), pads (good for flat or uniformly sloping areas), hardscapes, landscape walls, 3D polygons, and stake objects.
Each site modifier follows the same strategy. The site modifier has a 3D part the will change the site model and a boundary. The Boundary is a planar shape that defines how much of the site model will be affected. The Boundary is flexible and it allows you to choose the extent of the site modification. If the boundary is close to the site modifier, you will have a steep slope. If the boundary is a long way from the site modifier, you will have a gentle slope.
In the session we looked at site modelling and site modifiers. In particular, we looked at the site model settings to see how to edit the site model labels and crop area using the Reshape tool we looked at a simple site modifier. We used the command Create Objects From Shapes… to convert a simple object into a site modifier (pad).
Using the Offset tool, the pad was copied and converted to a Grade Limits. The pad was set to have a slope and then a polygon was converted to a site modifier and used as the top of a retaining wall. We also looked at creating site model snapshots. Snapshots are very powerful for creating different views of a site model, they update when you update the site model. We also looked at to road tools: the NURBS roadway and the Polygon roadway. These roads can be site modifiers and you can adjust the elevations of the roads to suit the site or to suit the design.