R  o  g  C  A  D    3 D    m  o  d  e  l  i  n  g    s  o f  t  w  a r  e



3D CAD modeling software for

DOS   Windows   Mac   Linux


RogCAD is freeware.  See description further down.

Visit :   RogCAD Girder and Panel Building Set   Click here





  RogCAD modeling of an 1851 artist's conception of the Crystal Palace:

  


    



  An image from the Crystal Palace design stage.  Main south entrance opening:

  



Click on a New York City landmark for full image
 
           


      
                  Hull wireframe modeled in RogCAD                                       Hull surface modeled in RogCAD


  1 minute 27 seconds
  Watch it turn solid, plus garage deconstructions and constructions.

   


Three options for an addition

      

     


      



In RogCAD,  simple text files generate 3D models:





        

Cubic elements can be skewed, rotated, translated, replicated, 
repeated along straight or curved paths, and are the primary tool 
for most projects.

Here are some cubics defined in a text file using Notepad:


start   x   y   z            x   y   z
point   minimum values       maximum values  rotation  color
-----   --------------       --------------  --------  -----

type 1 window frames
001     0   0   0           .5   44  1.5      180      3
011     0   0   48.5        .5   44  51       180      3
021     0   0   1.5         .5   2   48.5     180      3
031     0   42  1.5         .5   44  48.5     180      3

type 2 window frames
041     0   0   0           .5   40  1.5      180      3
051     0   0   48.5        .5   40  51       180      3
061     0   0   1.5         .5   2   48.5     180      3
071     0   38  1.5         .5   40  48.5     180      3
.
.
etc    


   You can build a library of objects, then 
   rotate and translate them for precise placement:


   



Cubic elements can be repeated along an axis, then rotated
and translated into position:

x   y   z        x    y    z      spacing   endcube   rotation  color

0   0   0      .292 .292  2.67      5.86      28        270       2



Standard points, lines and planes are also useful:

point    x     y     z          Connect points:
-----    -------------           
1        0     63.2  0          LINE GROUP 1:
2        24    63.2  0          8,23   1,12   12,13   2,13
3        24    41.2  0          1,31   8,13   1,2     2,3
4        0     45.2  8          3,18   3,8    5,18    5,6
5        24    0     6          .
6        0     0     6          .
7        0     41.2  6          etc
8        24    41.2  8
9        24    0     8
.
.
etc


Plane data, with light-source shading information:

            points
        --------------
plane   t1  b1  t2  b2   direction  color

1       3   8   3   18     270       5
2       18  5   8   9      270       5
3       44  43  2   13     270       5
4       1   2   12  13     180       5
.
.
etc


Curved elements:

points       degrees       radius         offset           weight
per        -----------     -------      -----------       --------
section    start   arc     X     Y      X    Y    Z       left inc   stretch

   20
             20    -70     19.2  6      24   30   2.83     0    0     0
             20    -70     19.2  6      24   30   4.83     0    0     0
   20
             20    -70     19.2  6      24   30   4.83     0    0     0
             3     -87     10    6.9    24  27.6  4.83     0    0     0
   20
             3     -87     10    6.9    24  27.6  4.83     0    0     0
             3     -87     10    6.9    24  27.6  6.17     0    0     0
   . 
   .
   etc


Rotations and translations are easy:

--------------------------------------------
first  last  z-angle  tran-x  tran-y  tran-z

ZROTATETRANSLATE:
1      358     115      7       13      0
--------------------------------------------


..and you quickly get output:


RogCAD for DOS output, with customizable color palette:




RogCAD for Windows output:
















RogCAD for Windows menu.  The menu items are identical to 
those in RogCAD for DOS, and the databases are compatible:




RogCAD for Windows customizable color palette:









RogCAD   for all computers

3D CAD modeling

Keyboard data entry CAD software
for productivity or hobby.

This software provides simple and complete
control of the output, being keyboard entry
based.  It's especially useful for combining
wireframe modeling with surface modeling
in a customized manner.

Also, being keyboard entry based, it
allows for easy editing of designs.
One simply edits a text file containing
the data elements, using Notepad or any
text editor.  RogCAD is a general use
CAD program.  You can download a copy of
it or hire me to model your project for you.


Project:  cabin addition

Project:  new workshop/office

Project:  sunrise - sunset modeling

Projects: old images page


Visit the RogCAD 
Virtual Girder and Panel home page


FREEWARE:

If you would like a copy of RogCAD,
paste this entire url into your browser
navigation bar:

https://luebeckdownloads.com


RogCAD for DOS has 640x480 resolution
and 15 colors per palette.

RogCAD for Windows has 1024x768 resolution
and 255 colors per palette.

RogCAD for DOS is now also available as 
a stand-alone program for running on
any computer, including Mac.

Click image for better detail





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, replicated and repeated
along straight or curved paths.

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.





 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 surface rendering, with automatic shading
      for light source direction.

   *  Provides customizable rotatable grids and multicolor wireframe lines.

   *  Provides unlimited range of perspective points and focal points,
      and allows you to specify those values using 3D coordinates.  

   *  With those precisely defined perspectives and focal points and
      rotatable grids, RogCAD is excellent for doing analytical work.

   *  Can overlay multiple projects.

   *  Provides excellent control of the color palette.

 Limitations:

   *  Not compatible with any other CAD format.

   *  You need to have an appreciation for the old fashioned
      "nuts and bolts" approach used in this software.

   *  Currently contains no libraries of predrawn elements, therefore
      not best suited for rapid detailed drawings of standard designs.  
      RogCAD is best suited for accurately conveying the overall look
      of an object, especially the unconventional.

   *  Surface rendering of curved surfaces is not fully automatic and
      requires inspecting the data or ones notes.

   *  Surface rendering of the most complex objects typically needs
      to be done in multiple steps, but RogCAD provides you with a
      macro text file to make this easy.



 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


 I am the original rogcad.  I named my CAD program rogcad in 1995,
 which marked the beginning of the name.  I originated the domain 
 rogcad.com on 6/30/2000 and have owned it ever since.  There is a 
 rogcad listed on an online chess site, but it is not me.  I haven't 
 played chess since 1969.  Any occurrence of the name rogcad on the 
 Internet outside of my CAD work and my other web pages is not me.



 (This page last updated January 25 2021)



 RogCAD program code

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