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Projects in RogCAD are built up mostly through
the use of cubic primitives. The user defines a
cubic shape by specifying two diagonally
opposite vertices.
RogCAD automatically supplies the remaining
six vertices as well as the connecting lines
and planes.
These cubic elements can be skewed, resized,
rotated, translated and repeated along straight
or curved lines.
Thus generated are things like rows of mitered
boards, windows, or rows of buildings.
Points, lines and planes can also be defined
independently, and are integrated with the
cubic data structures, as are curved surfaces.
Complex curved surfaces are modeled by
stretching basic circular shapes in a variety
of directions. The boat shown here required
about two hours of data entry.
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More about RogCAD features:
* It's strictly keyboard entry, therefore inherently
precise. Design elements fit together seamlessly.
* Data for a project is displayed collectively in a
text file, allowing data entry and editing in any order.
* Can combine wireframe and surface modeling in any manner.
* Provides automatic shading for light source direction.
* Provides customizable grids and multicolor wireframe lines.
* Provides unlimited range of perspective points and
focal points, and allows you to specify these values
using 3D coordinates.
* Can overlay multiple projects.
* Provides excellent control of the color palette.
Limitations:
* Not compatible with any other CAD format.
* Slow learning curve. You need to have an
appreciation for the old fashioned "nuts and bolts"
approach used in this software.
* Contains no libraries of predrawn elements,
therefore not best suited for detailed
drawings of standard designs. Best suited
for accurately conveying the overall look of
an object, especially the unconventional.
* Surface modeling of curved surfaces is not
fully automatic and requires a lot from the user.
* Surface modeling of complex objects needs to
be done in multiple operations.
I originally wrote RogCAD to run on my old IBM XT
with the text-only monitor. The data points had to
be plotted on paper by hand and then connected with
a straightedge.
From 1993 to 2001, I developed it into its current form.
RogCAD is freeware. - Roger Luebeck
(This page last updated April 2019)
RogCAD code
rogcad.com site map
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Relativity in absolute terms
Relativity Trail, the book (free pdf)
home page: olden-days.me
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Hull wireframe modeled in RogCAD Hull surface modeled in RogCAD
Three options for an addition
