Evolution history of LITIO V.2

Evolution history of LITIO V.2.0:
Version 2.0.5 [6^th October, 2009]:
Another bug was corrected and version 2.0.5 was issued.
Also a routine to join 3D Polylines was added (Not documented yet. Contact us for more details.). Editorial corrections made to manual.PDF.

“Objects do not intersect completely...” error. Branch - Cylinders [2 Diameters]
Importance: medium
Found by: Mr. Nial.Ball, United Kingdom
Description: Under certain circumstances, Branch - Cylinders [2 Diameters] produces an "Objects do not intersect completely, or trimmer object seam is in the intersection" error, although the situation does not happen. Due to conservative dialogue filters settings, the dialogue gives this error, when the intersection does exist, but it is in the very limit (e.g., it depends of the trimmer and trimming surface settings, t.i., when adding or subtracting the thicknesses would led to an intersection or not). Although the 3D trimming algorithm can realize if such a situation happens, the too tough dialogue filters impaired this routine to be performed.
Solution: Corrected in v.2.0.5. Program dialogue filters for Branch - Cylinders [2 Diameters] were changed.

Version 2.0.4 [not published]:
Small bug was corrected. Issued as version 2.0.5.

“Objects do not intersect completely...” error. 3D Trim.
Importance: medium
Found by: Mr. Dwi Rizki, Indonesia
Description: Under certain circumstances, 3D Trim intersecting entities produce an "Objects do not intersect completely, or trimmer object seam is in the intersection" error, although the situation does not happen. Due to a bad assigned counter program variable, the program some times (when the intersecting object has much more point definitions than trimmer object) says the intersection was not complete, although it was obviously not the case.
Solution: Corrected in v.2.0.4 [issued as v.2.0.5]. Program variables re-assigned to count the proper set of points.

Version 2.0.3 [not published]:
Small bug was corrected. Issued as version 2.0.5.

Groove allowance in straight segments
Importance: medium
Found by: Li R&D internal audit, after a technical question by Mr. ATILA, Ivailo Ivanov, Bulgaria.
Description: Trying to generate groove allowances for some figures lead to error messages and termination of program. For example, when the development has a certain length of short collinear segments [e.g., starting or ending sections of bends].
Solution: Corrected in v.2.0.3 [issued as v.2.0.5]. Program formulas were corrected. And if [eventually] the error happens, that will not prevent the 2D contour to be generated, and the program will not crash.

Version 2.0.2 [8^th May, 2009]:
Another bug was corrected and version 2.0.2 was issued.

Free profiles not in Z=0 plane
Importance: high
Found by: Li R&D internal audit
Description: 2D Polylines out of the Z=0 plane (or out of current CS), if picked for "free profiles" advanced feature, may lead to wrong 3D representation and to an erroneous 2D development.
Solution: Corrected in v.2.0.2. Program only allows picking 2D Polylines that are in the Z=0 plane, in the current CS.

Version 2.0.1 [8^th March, 2009]:
Two bugs found in version 2.0 were corrected and version 2.0.1 was issued.

Dialogues and messages in other Languages
Importance: low
Found by: Ricardo Borda Pulido and other Spanish speaking users.
Description: Routine to change dialogue and message Language is not stable under certain combinations of AutoCAD + Windows versions. Language change was not possible.
Solution: Corrected in v.2.0.1.

Open polylines and New 3D developable ruled surfaces generator engine
Importance: medium
Found by: Li R&D internal audit, after a technical question by Chris Jones, USA.
Description: Bug does not produce erroneous developments but prevents some possible free patterns [with 3D developable ruled surfaces generator [free transitions] (see user manual on page 18).] to be calculated and developed [instead it gives a message that it is not possible to calculate them]. The particular case seems to take place when a polyline with arc segments is trimmed at an arc segment, being that segment the last of the resulting [trimmed] polyline.
Solution: Corrected in v.2.0.1.

Version 2.0 [15^th January, 2009]:

The new [2.0] version of LITIO, which is a jump forward in quality and sheet metal development capability, was issued.

Version beta 2.0 [26^th September, 2008]:

Trim 3D for mirrored objects
Importance: high
Found by: Li R&D internal audit
Description: 3D objects generated by Litio 2.0 beta.0, if mirrored, will produce erroneous developments if trimmed 3D with a plane or with other 3D object.
Solution: Do not MIRROR nor MIRROR3D objects created with LITIO 2.

Allowance for grooved joints
Importance: low
Found by: Li R&D internal audit
Description: The “offset” contour might show, when the original development has sharp concavities, an overlapping.
Solution: Pending