Author: Alex
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Making Isometric Drawings Using AutoLISP – Part 5
Irregular Angles I know I planned on only having a circle, rectangle and hexagon as options in my autolisp function for isometric drawing, but just after I finished with my code I realized I needed one more thing: a way to create irregular angles on the face of an axis. This makes it much easier…
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Making Isometric Drawings Using AutoLISP – Part 4
The Circle Circles are among the hardest simple geometric shapes to draw in isometric view. When transformed into an isometric view, circles become ellipses. In order to draw the ellipse, we need to determine the x and y radii using the provided radius as a reference. By transforming the x and y coordinates of the…
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Making Isometric Drawings Using AutoLISP – Part 3
The Hexagon The hexagon is a little more complicated of a shape than a rectangle. Since it has geometry directly perpendicular to one axis, it becomes trivial to use more trigonometry to solve for the points. Developing the Geometry Like placing any other geometry, you need a reference point, which we’ll set as the…
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Making Isometric Drawings Using AutoLISP – Part 2
The Rectangle The rectangle is the easiest, since each axis of drawing follows the isometric axis. Isometric drawings use 30° parallel projection, meaning that unlike perspective drawing, objects along the same axis don’t convene at a point, but rather are parallel to one another. This preserves the dimensions of most of the shape, however there…
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Sustainable Furniture Design
Furniture is, in both a physical and philosophical sense, the interface between people and the built environment. It’s where we sleep, eat, work, and play, and that means it gets a lot more wear than the building it sits in. So how do we make our furniture more sustainable? What is sustainable furniture anyways? In…
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Making Isometric Drawings Using AutoLISP – Part 1
I started creating isometric details in AutoCAD a while ago, and realized something I thought I already knew: AutoCAD sucks at 3D modeling. Isometric drawings are an effective way of representing 3D objects in 2D, and preserves dimensionality of the object. Unfortunately it turns out that while AutoCAD is perfectly capable of handling isometric drawings,…