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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.
Searched for "GDL"

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Here's a general solution to dashed lines in 3D. Line types aren't available in 3D GDL. I'm using this for hinge lines on doors and windows.
Location: 32 Exterior Improvements / Update: Japan and Alaska. I needed a US flag, and I didn't have my own, so I searched in the settings dialog. The US Archicad Library doesn't have one either. There is one on BIMComponents, written by Graphisoft, and maybe that one is in the international version library. It's just as well, because the object
Happy anniversary to this post from October 16, 2006. That's the year of Archicad 10. The post is called Ways Objects Have to Be Right. (I should have said library parts, I regret the error.) There were a lot back then: Plan symbol Plan symbol on remote stories 3D hidden line 3D shaded 3D render Elevation Elevation in distant area
This is a new approach to showing openings in reflected ceiling plans, using a modified plan symbol rather than an blank opening. I haven't put it in the template yet, and it may not be required or appropriate for every project, but it is better overall. The biggest limitation is that in order to use it you have to use
This is the 9-years-bugging-me thing from a couple days ago. I have used doors and windows of my own making since Archicad 8. When I started, it seemed essential to getting our projects looking the way we want; the Archicad Library items just didn't do the job. I know they have improved over the years, but I don't know how
Library Globals were introduced in Archicad 13. But I only noticed them after jumping to 16, and by that time there were enough examples in the wild to make their value clear. They have enormous potential, especially compared to their relative ease of use, if you are already a GDL/library/standards person. In GDL there are Global variables, which make
We have several objects offer the user a group of roof slope selection parameters. You can select an n/12 slope from the list, or you can enter a custom slope angle. When you select a slope, the angle changes. When you put in an angle, the slope parameter will show n/12 if there is a match, and 'Custom' if not.
Our title block is an object with hard-coded dimensions for each sheet size on our printers. The template has a worksheet for each sheet size, and within each worksheet is placed a title block object set to that size. Then there's a saved view of each worksheet, and the view is placed in each master of a given size. One
Converting 2D elements for use in 3D. 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
AC11 has a model view option to put the floor plan into reflected ceiling mode. It only works for objects, not regular elements (wish wish wish). I have several objects that take advantage of it. This is the basic code you need to have a symbol draw itself differently in floor plan and RCP mode. The idea is that depending
Somebody asked why the flue object can't show a thickness for the flue liner itself. One reason: The flue sits atop, and lines up with, the top of the smoke chamber object. In section this gives a continuous void. If a thickness is built in to the flue, there would be a discontinuity at the top of the smoke chamber,
Something to think about, or maybe not. Not all objects have to be right in every way. Plan symbol Plan symbol on remote stories 3D hidden line 3D shaded 3D render Elevation Elevation in distant area Section Polygon efficiency Scale sensitivity; which compounds the plan symbol, section, and polygon issues Listing Labeling User interface Parameter list Parameter transfer management (Unique
This is somewhat redundant with the GDL Syntax section of the reference guide. I'm trying to make it a little clearer.
An object consists mainly of parameters and scripts.
• The GDL Reference Guide. They don't give us a printed version anymore. That's OK, the PDF is better. This guide is a really bad tutorial, because it's not a tutorial. It's more like a dictionary. Once you have the basic ideas, it's very clear, and indispensable. • The GDL Cookbook 3, by David Nicholson-Cole. PDF. Out of print, out
You're mostly on your own. I can help with questions, but the way you learn is struggle. Once you get the basic ideas, the GDL manual actually makes sense. The code itself is not very hard; GDL is a lightweight in programming language terms. The hard part is design, and being perfect. Yes, perfect, at least with regard to spelling
I would like to offer the opportunity to join an introduction to GDL, i.e., object scripting, for anyone who is interested. And, I would like to not offer it to anyone who is not. Interested. I'm thinking of a map of the territory, a broad overview, with the goal of demystifying object making, so you can envision creating custom solutions