## Merry Christmas, Joyful Holidays, and a Happy New Year 2019!

https://sketchfab.com/models/ffc984f2997a42c884d0a7425dca0955 Dear friends and colleagues, I wish you and your loved ones a Merry Christmas, a peaceful and joyous holiday season and a happy and successful new year 2019! Cheers, Alex P.S. Once again my Christmas card is a simple SketchUp model, made with a randomizing script and the amazing MS Physics extension. It was then exported to Sketchfab where I enhanced all textures a bit and applied lighting....

## Using images for scaling and geometry patterns in SketchUp

This post was actually inspired by a question in my Basecamp presentation: Could we use images to create or modify geometry in SketchUp? As it turns out, this is actually quite easy since SketchUp version 2018. This year's version of SketchUp includes a new class in Ruby, the ImageRep. Contrary to the regular Image class (which you can use to work with images as entities in SketchUp), the ImageRep class goes further and allows you to look at images on a pixel by pixel basis. This is basically what we need to be able to read pixel color values and then use those to create or modify geometry. As you can see in the code snippet below, this is reasonably straightforward once one figures out the basic geometric behavior. The code even stretches the image by the (x and y) dimensions of the selected geometry. One part that needed to be resolved was that color information in an image contains red, green, and...

## Beautiful Functions in SketchUp

Scripting geometry (as described in Chapter 7) can make things look very interesting (and quite beautiful) with a rather small amount of actual code. You can see this in the patterned panel example or in the pulled brick post. Both of those examples use a combination of sine and cosine functions to create a "wavy" pattern that nicely undulates shapes and geometry. There are other functions, however, some of which you likely remember from algebra and trigonometry classes. But even without delving too deeply into this, I thought it would be useful to have a reference for some interesting functions that may be of use. The interactive examples shown below use the following grid of 1 inch cubes in SketchUp that were simply scaled vertically according to the lines of code that are included at the bottom of this post. Obviously you can use this approach for other purposes and in other ways, too, but this is a good way to...