Rhino Augmented Drawing 3D Scanning Arc GIS

💡
The Rhino workshop is about learning the basics of 3D modelling. Rhino is often referred to as an industry standard which makes it a flexible software to learn and build with. Alongside learning Rhino, we will also have a look at V-Ray and Grasshopper as additional software to aid in various methods of representation.
For this session in particular, we learnt about the User Interface, basic features and panels, commands as well as attempting a modelling exercise of a lighthouse with some surrounding topography.
 
Table of Contents

🛴 3 Step Framework

  1. Draw in 2D
      2. Drawing a plan or section, starting with 2D information first - the simpler the better
      This should ideally be accurate and to a 1:1 scale (always model in a 1:1 scale and then adjust if necessary to produce scaled drawings later on)
  1. Create a Surface
      2. 'CAP' adds a top to the surface // use 'PLANARCRV'
      Make sure to group the objects together!!
  1. Make the objects 3D
      2. Difference between groups and blocks //
      Groups: are groups of objects that are individual to other copies
      Blocks: work similarly to components and any changes to one will affect the others - any instance that will be repeated in your 3D model should be a block because this will make it much easier to edit and adapt later on
 
❗
Make sure to save your work as a new revision each time something changes in your project. This will ensure you have a backup version rather than a single file which has the chances of becoming corrupt.
Naming Conventions: start by date i.e. '211011' so that they are easily identifiable and sortable in your folders or hard disk.

👁 Rendering in Vray

Assigning Materials
Assign through layers by doing Right Click > Assign to Layer
Lighting
Make sure that the Sun is turned ON to create the shadows and export photorealistic renders
 
💡
Named Views
Treat each named view as a drawing / render / illustration so that you can always go back to it and editing the objects within that named view

🕯 Creating a Lighthouse

  1. Start a new project and create a rectangle with a circle at the top, on a layer called 'Building'. Then extrude using 'EXTRUDECRV' the shape by 3m. This creates the base of the lighthouse.
      2. notion image
  1. Create the body of the lighthouse by creating 2 different sized circles, moving the smaller one up by 30m and using the command 'LOFT' to connect them.
      2. notion image
  1. Draw a curve on top of the tapered cylinder and use the 'REVOLVE' command to loft around the curve. For this step, having a line in the middle helps to act as an axis.
    1. Make sure to draw the axis point going from top to bottom and type in '360' to circle around the base curve.
      2. notion image
  1. To create the railing, I created a simple Circle, extruded it using the 'EXTRUDECRV' command and then arrayed it along the base curve using the function 'ARRAYCRV'. I did this at a total of 16 points.
      2. notion image
  1. Then, offset the existing curve from the body of the lighthouse to connect the railing together. Use the 'PIPE' command and set a radius of 0.05m. Then, duplicate this and move it down by 0.3m.
      2. notion image
  1. Then, on the help layer, create 4 planes, each 6m apart to divide the body of the lighthouse into equal segments. Use the 'SPLIT' command on the loft object.
      2. notion image
  1. Then, assign the objects to the correct layers. In this instance, I grouped (Ctrl+G) together the railing elements to make them easier to handle. I changed the layers of the objects through the Properties tab.
      2. notion image
  1. Constructing the Terrain
    1. I used the Rebuild tool to shape the terrain and moved it onto its own layer.
      2. notion image
      notion image
  1. Using the 'CONTOUR' command, create the contours of this landscape.
      2. notion image
  1. Now add the street. Create a new layer, draw a curve leading up to the pier and offset by 6m. Then, use the 'PROJECT' command to project the lines onto the surface we created earlier.
      2. Delete the initial curves and draw a 'LINE' to close the curves.
      Now, 'JOIN' the lines to create a closed polyline and use the command 'SPLIT' to cut out the shape from the surface.
      notion image
      Move this section onto the Street layer.
  1. Before creating a 2D output, save a perspective view as a Named View.
      2. notion image
    1. Now, use the command 'MAKE 2D' to create a line drawing of this view.
      2. notion image
  1. Repeat the same for the Top View.
      2. notion image
       

⭐ Final Outcomes

As an extra task to understand Vray materials better, I assigned standard materials to each layer and rendered a perspective view with a HDRI sky in the background.
notion image
 

Perspective Render

notion image
 

Line Export

notion image
badge