Alex Sassoon

Month: January 2014

  • Making Isometric Drawings Using AutoLISP – Part 5

    —

    by

    Alex
    in

    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…

  • Making Isometric Drawings Using AutoLISP – Part 4

    —

    by

    Alex
    in

    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…

  • Making Isometric Drawings Using AutoLISP – Part 3

    —

    by

    Alex
    in

    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…