On Land

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At Rill Architects we run ArchiCAD on Mac OS X. If you work at Rill, this is your stuff. If you don't, but you work in ArchiCAD, you may find something interesting. Anybody else, I don't know.
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Utah
Utah


Right Triangle
Utah


Angled Bay
Utah


Crown Tool JM10

Silo Top
Since I've needed a silo top object one time in ten years, there's a chance that among a group of people larger than just me someone will need a silo top object at least one time in the next ten.

Download (AC11)

Two tweaks to the Railing JM9 object.

Linified balusters
Linify balusters. That word is made up. Hidden under the Baluster Width parameter you will find a checkbox to 'linify' the balusters. This replaces the rectangular baluster with a single 3D line. The only occasion to use this option is a hidden line or sketch-render 3D view, where the normal 2-3 lines of each baluster can look too heavy. It is unacceptable for construction documents, so remember to switch it back after you create your image. If we had customizable Model View Options, I would have one for 'Resolution' or 'Level of Detail', then hook linification to that.

Clustered balusters
Cluster on Treads for balusters. For a sloped railing with three balusters per tread, this option puts less space between the triplets than between the groups. The Distance parameter defines how much closer they are. Make sure the big space still meets code; the object does not check for this.

Glass Lines
Location: 01 General / 1 Graphic Symbols

Another one for the well-under-4KB* series...

The length of the object is the length of the long line. The length of the short line is set by the Short Line Factor parameter. You can adjust this factor graphically. The spacing of the lines is controlled by the Spacing parameter. Also graphi-justable.

This is a good one to place with the rotate and stretch geometry method (fourth button). With this method I had an intermittent glitchy behavior where the object would appear offset from my clicks, but I couldn't reproduce it.

I wanted to add this symbol to our doors and windows directly, but I don't think it's possible to force the lines to tilt rightward in every case, once you factor in the orientation of the door and the viewpoint and all that.

Download (AC11)

* Until you add the preview image.

Converting 2D elements for use in 3D.

Tree sketch

Any 3D element(s) can be saved as an object with the Save Project As... menu command. (In Archicad 11, Save 3D Model As...) This technique is known as 'slabifying' since such models are often built from slabs. Objects saved in this way are dumb (not parametric), but it's still a useful trick.

2D elements can't be saved this way, because they never appear in the 3D window, where 3D object saving takes place. Despite the fact that GDL contains commands for 'flat' shapes in 3D, including LIN_ (a line) and PLANE (not a joinery implement). But there is a workaround for 'slabifying lines'. When you open a 2D DWG as an object, 2D lines are created as LIN_ statements in the 3D script. When you place the object in the model, you get the 2D geometry in 3D.

It's that simple at it's simplest, but real world applications need some tweaking. In this example, I'm converting an Archicad library 2D tree elevation symbol so I can use it in a sketch render image. Other applications might be a complex ornament in a hidden line elevation, or a busy glazing design placed in front of a conventional window.

More»

Jack

Materials for rind, flesh, and stem. Expression can be happy or sad. I've had this for nine years; I finally took the inline material definitions out.

Download (AC11)

Ellipse Vault

I added an option for an elliptical curve. Original and download link here.

Brick Rowlock
Location: 04 Masonry

An extrusion in the shape of a sloped brick rowlock course. Set the Angle and Brick Width of the rowlock, and the Thickness and Air Space of the veneer it rests upon.

Rowlock Section
The Mortar Bed option will draw a wedge of mortar below the brick in large scale sections. The brick itself uses the object's fill setting. At building section scale, the whole thing is modeled using the object's fill.

Yes, you could use a custom profile for such a thing. But if you wanted to change the slope or the brick dimensions you would need to draw a new profile. And profiles can't change in response to the scale.

Profiles are simpler, at least until you have too many of them. Objects are smarter. Now if we could script a profile...

Bracket Strut JM9: More top and bottom end shapes: Cove, chamfer, and fillet.

Chamfer Cutter JM9: Chamfer multiple corners at once.

Rafters Decorative JM9a: Like the eave ladder, you might want to see exposed rafters in the reflected ceiling plan. But you need to be able to hide the portion of the rafter object that is hidden by the main roof. Adjust the Top Hide Distance to meet the main roof cut:

Hide rafter top

Location: 06 Wood & Plastic

A sloped series of boards to support a flying rafter.

This thing is hard to show in place; here's a section through the eave of a dormer, showing the dormer wall in elevation:

Eave ladder section

The Roof Slope can be selected from a familiar list of n/12 slopes, or you can use a custom angle.

You can choose the board Stock from the list, or use a custom Height and Width. Spacing is measured along the slope.

eave ladder plan
The boards are shown in plan as a bottom view, taking the roof slope into account. By default, all the boards are shown.

eave ladder RCP
Why a bottom view? This is a trim object, and will often go on a 3D-only layer such as F Trim Ext Hi. You would never see it in a regular plan. But you might want to see it in a reflected ceiling plan.

eave ladder hide edit
But in the case of this dormer, you would want to hide the boards that are obscured by the main roof. Stretch the Top Hide Distance to do this.

Location: 06 Wood & Plastic / Brackets

An Arts & Crafts type bracket. Parameters: Length, height, width, top/bottom thickness, top/bottom end treatment, strut thickness, width, and top/bottom inset.

The end treatments are Square, Ogee, and Pyramid. May 2008 update: Cove, Fillet, Chamfer.

You can turn on "Both Ends Same" to use the same values for the top and bottom. In this case, the bottom-related parameters are hidden.

Most of the parameters are editable in 3D.

Though I kept the '9' in the name, this is for Archicad 11.



Originally posted 2005-03-29

Location: 06 Wood & Plastic / Trim & Moulding

A series of battens for board and batten siding. There are parameters for Width, Thickness, and Spacing. For a single batten, set the spacing to zero.

In order that you can do a whole wall with one Battens object, you can have up to eight Holes in the batten arrangement. Turn on as many holes as you need and fit them to the windows and doors. You can do this in section or elevation using the editing hotspots.

Battens 1
This is an excellent throw-down-and-fix situation. I placed the object along the wall in plan. Now I can fine tune it in elevation. Note the gap in those two battens; that's one hole.

Battens 2
You can stretch the height using the editing node at the center of the top. The ordinary nodes at the ends won't work, don't ask me why.

Use solid ops to trim the battens to the roofs.

Battens 3
Each hole has two editing nodes. The lower one moves the hole, and the upper one stretches its height and width. The red box shown here is optional; turn on the Show Holes parameter if it makes it easier. You can still edit the hole if the box is not shown.

Battens 4
Position the hole first, then stretch it. In most cases, you'll do this by detecting the intersections at the casing corners.

Battens 5
So that's that.

Battens 6
If you need another hole, turn it on by increasing the Holes parameter. By default, additional holes will appear at a small size at the bottom of the object.

Battens 7
With Show Holes on, the holes are also visible in plan. But to align the holes precisely (not to mention vertically), you need to work in section or elevation. Hole editing will also work in the 3D window, but you won't be able to snap to the casings very effectively.

Download (AC11)

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