\ISOM2D

   ISOMETRIC 2D PROJECTION .- 

Objects are projected in the current XY plane whenever 
possible, creating planar entities that can be edited. This 
way solid and thick polylines remain filled and standard 
Autocad commands (such as pedit and fillet) can be used on them.

   Objects that can be projected in isometric 2D are:

LINE, POINT, CIRCLE, ARC, TRACE, SOLID, TEXT, INSERT, ATTRIBUTE 
DEFINITION, POLYLINE, DIMENSION, 3DFACE, MLINE, MTEXT, XLINE, 
RAY, REGION.

   Block inserts must be uniformly and positively scaled. All other
objects are projected in 3D.

  The original objects are left intact, and the entities in the 
block retain the original properties (linetype, color, layer, 
thickness). 

 If you want to edit individual objects you must first explode
the resulting block. There are four available viewpoints (one
for each quadrant)

     Prompts:

      Select objects:
      Position:
 
\ISOM3D

   ISOMETRIC 3D PROJECTION.- 

   Blocks are created from selected entities and then scaled and 
inserted rotated in space to view them in isometric. Some Autocad 
editing commands are not allowed on non planar entities (such as 
fillet and pedit), and solids, traces and polylines do not remain 
filled (they are represented as wireframes). The blocks created 
are named with the prefix "ISOBLK" and the next available number 
(ISOBLK1, ISOBLK2,...) 

       Prompts:

       Insertion base point:
       Select objects:

\ISODRAW

    ISOMETRIC DRAWING.-

   Routine to assist in the creation of isometrics by displaying 
a short line that snaps at every 30 degrees or at user specified 
angular increments. Instead of typing something like "@3.5<120", 
you just type "3.5" and then move your mouse until the indicator 
line snaps to the desired angle. The command sequence is as 
follows:
              Prompts:   
              
              Angular increment<30>:   
              <Base point>/Ref:
              <Distance>/Undo/Ref:

              If you choose the "Ref" option you
              will get the following prompts:
              
              Reference point:
              Distance:

  Use the "Ref" option if you want to get a point at 
a certain distance and angle from another known point.

\ISOFITT
   
   ISOFITT.-

   Routine to globally place transversal lines ("ties") at the 
beginning and ending points of line and straight polyline 
segments to indicate fittings. It optionally rounds corners
to indicate elbow fittings, and also detects intersections with 
another lines to indicate "T" and "Y" fittings. The default
length for the crossties is the current text size.

       Prompts:

       Select objects:  
       Tie length:
       Round corners?<Y>:

\ISOTEXT

    ISOMETRIC TEXT.-

    Routine to generate dynamic isometric text. All text fonts 
can be used (*.SHX, *.PFB, and *.TTF on AcadR13). A text style 
is generated for each font select in the following progression:

 ISOTEX-L1,ISOTEX-L2,...  ISOTEX-R1, ISOTEX-R2, ....
    
  After you choose the isometric text style from the dialogue 
box, all prompts are the same as in DTEXT command.

\ISODIM

    ISOMETRIC DIMENSION.-

    Routine to generate isometric dimensions, optionally 
choosing a text font. After you choose the dimension style,
all prompts are the same as in the DIM HORIZONTAL command.
The dimensions generated retain their associativity and 
use the default Dim values (Dimscale, Dimasz,Dimtxt,..) 
except for the default block (Dimblk). If you stretch a 
dimension to modify it the text value and style will be changed, 
resulting in a loss of isometric text appearence. To avoid this, 
you can set the isometric style to ISOTEX-L1 or ISOTEX-R1 and 
update the dimension after the change is made.

\ISOPASTE

    ISOMETRIC PASTE.-

    Routine to project orthometric objects in the right or
left isoplane. You can quickly create an isometric drawing 
from existing plan views of an object using this and the other
isometric projection routines (ISOM2D and ISOM3D). You can also
draw a detail in plan view and then convert or paste it into 
an existing isometric object.  The original objects are left 
intact, and the entities in the block retain the original 
properties (linetype, color, layer, thickness). 

   Limitations:  

  -Text and blocks will always be projected in isometric 3D
  -The isometric 2D projection does not recognize objects with 
   thickness, but you can use the isometric 3D method instead 
  
\ISOSHAPE

    ISOMETRIC SHAPE.-

    Routine to draw up to 25 parametric iso shapes. The basic 
types included are: cube, cylinder, cone, pyramid, wedge and 
arc. Within the dialog box you can select the shape from the 
listbox, icon image or by pressing the next and previous 
buttons. You then type in the required values in the edit boxes 
provided (zero, null and negative values are not allowed). 
The isometric shape will be created after pressing the ok
button or double-clicking on the icon image.

   

        

