BK3OV3 leerstof opgave week 1

From TOI-Pedia

Leerstof opgave week 1

Deze opgave heeft tot doel snel je kennis te checken van het geleerde materiaal.

Voor deze simpele opgave maken we een simpel patroon en voegen er een hatch aan toe. Je mag zelf het patroon verzinnen. Hou het simpel!

Lever je Rhino file in via de website. We beoordelen het file of het een hatch patroon heeft binnen lijnen. Dus hou het simpel.

Rhino leerstof opgave 1.jpg

Als je het online lesmateriaal hebt doorgenomen ben je onderstaande uitleg tegen gekomen.

Creating Curves

One of the big advantages of using Rhino is the simple interface. It is not cluttered with options you most of the time won’t use and its layout is very efficient. We already know that there are several ways on how to activate a command.

  • Typing in the command on the command line (for the more seasoned users)
  • Use the tabs on the shelf (can be useful however you will get flooded with icons)
  • Using the pull down menu (straightforward option because the commands are named)
  • The use of the toolbox (very effective due to its simple organization of icons)

Rhino curves.jpg

If you look at the 'Curve pull down menu you will see an arrow behind almost every command. This means there are additional commands available. They all will create, for example, a line but all in a different way. Most of these options you won’t use, but some can be quite useful.

Rhino curve pulldown toolbox.jpg

If we look at the Toolbox we see only 7 icons related to generating various curves and lines. This the genius behind the layout of the Toolbox. In the bottom right corner of the icon you will see an arrow. If you click on this arrow a flyout will appear with the additional commands. Most of the times it enough to only select the icon in the toolbox. Because of its simple layout of only 7 main icons it is very easy to use.

Rhino curves icons.jpg

There are 7 main icons in the toolbox to generate various curves. They all speak for themselves. For a straight line you will use the Lines command, for a curved line the Curves command etc. Always check the command line for additional options once you activate the command.

Rhino curves cv-edit points.jpg

There is one command which is not ideal for accurate drawing. This is the Curve command as it is displayed in the Toolbox. This option makes a CV curve. Every time you click the mouse a Control Vertex is added generating the curve. However we know that the control vertex only sits on the begin and end point of the curve. The rest in between are used to pull the curve into shape. How this works out is very difficult to predict. So placing the intermediate CV’s becomes a bit of a gamble. To tackle that problem we have an Interpolated points curve. When you draw a curve with this option the curve will go through the points you have generated by clicking the mouse. It therefore gives much more control over the initial shape of the curve.

Rhino drawing aids.jpg

You can also type in the location of the next point of the curve by using the command line. That helps you to accurately define the curve. Or one could use the Grid snap option so every point is place on a grid point for more accuracy. Keep in mind though this is not always necessary. When you are sketching you also don’t use a ruler and grid paper to make sure the lines have a certain length. You can do the same thing in the computer, just sketch the lines and afterwards they can be made more to scale.

Rhino drawing a line.jpg

When you create a curve or line and you want to close it , select the close option in the command line or place the last point on the start point.

Adding hatches to a 2D drawing

Rhino hatch.jpg
Rhino hatch1.jpg
Rhino hatch2.jpg

Hatches can be quite useful to define the properties of your geometry. A wall can have another hatch pattern then a floor for example. This technique is widely used in technical drawings where black and white printouts restrict you from using color.

In rhino we have a simple hatch option.

Before we start we have to make a new layer. Good practice is to place the hatch pattern on a separate layer so you can switch it on and off easily.

  • Select the Layers tab on the right menu.
  • Click twice on the name of the layer you want to convert to the hatch layer, and change its name into Hatch.
  • Or make a new layer by clicking on the left icon at the top of the menu.
  • Now double click the layer to make it active. Everything which is generated will be place on this layer.

To make a hatch pattern we go toDimensions » Hatch » 

  • Select the option of Boundary yes or no.
  • If boundary is selected it will be possible to select overlapping regions within the selected curves
  • If boundary is not selected all inner area of the curves will be hatched.
  • Select the curves
  • Select the hatch pattern and adjust the pattern scale.
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