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| LDCad 1.5 Beta 2 (win+linux) |
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Posted by: Roland Melkert - 2015-12-20, 22:39 - Forum: LDraw Editors and Viewers
- Replies (8)
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Hello all,
I've finally managed to finish beta 2.
It mainly fixes some minor and some potential very annoying things.
It also introduces some minor new features, namely:
(sub)model duplication.
New path part skin options (to better emulate LSynth behavior if wanted).
Part bin search tweaks (you can now search for e.g. 2x4 and it will find "2 x 4", "2 x 4", "3 x 2 x 4" etc).
New/updated snap info (mostly done by Philo, thanks to him for that).
If no major problems are found / reported based on this version I'm hoping to do a final 1.5 version in a couple of weeks.
As always the latest version can be found here:
http://www.melkert.net/LDCad/download
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| [LDPartEditor] 0.8.4 Beta Released |
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Posted by: Nils Schmidt - 2015-12-13, 20:27 - Forum: Parts Author Tools
- Replies (49)
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Hello,
as promised, here is the new feature release 0.8.4 
In the meantime, I prepare the migration to Java 8. Later releases will require Java 8.
![[Image: imgDuke2.png]](https://lh3.googleusercontent.com/-fi18ywwsEUo/VOOuvkpsdzI/AAAAAAAAASw/Ax0RRFkleKA/s64-no/imgDuke2.png)
You can download LPE from this page:
http://nilsschmidt1337.github.io/ldparteditor/
Changelog:
With this release you will be able to... - ...use the new "MeshReducer" tool, to simplify generated CSG meshes.
- ...use a more "aggressive" T-junction-finder (can destroy the mesh geometry under some circumstances!)
- ...use the "Move on Line" function, to move a vertex on a line between two vertices (its a beta tool! Soon I will explain how to use this.)
The program was tested intensively with "real world" files. Especially, "Undo" and "Redo" should work now fine.
Make sure that you choose the right architecture for your OS and Java Virtual Machine (JVM) (64bit or 32bit).
A short guide how to check if a 64bit JVM is installed on your system is located at the bottom of this message.
- Download the zip-Archive
- Extract the archive content to the location of your choice
- On windows, double-click "run.bat" to start LPE.
- On linux/mac, you have to excecute the shell script "run.sh" to start LPE.
Please note that this software is in the beta stage. Although, LPE 0.8.4 was carefully tested and developed, there are already known issues for this release. There is a potential risk of data loss.
Something can go wrong in about 100.000 lines of code.
You can search for updates if you do the following steps:
- On windows, double-click "update.bat" to search for updates.
- On linux/mac, you have to excecute the shell script "update.sh".
LPE is a 3D CAD application: The overall system requirements are higher. While I recommend to use a powerful 64-bit multicore system, it could be possible, to run LPE on older machines as well.
System Requirements:
Minimum System Requirements:- Java Runtime Environment (JRE) 1.7
- OpenGL 2.1 compatible Graphics Card
- Operating System (32/64bit): Windows [XP; Vista; 7 or newer], Mac OS X [>=10.6], Linux [e.g. Ubuntu Linux >=10.4]
- CPU: Multicore-Processor e.g. Intel Core 2 Duo or AMD Athlon II (>2.0Ghz)
- RAM: 2.5GB
- Video-Memory: 512 MB
- Free Disk Space: 100 MB
Recommended Requirements:- Java Runtime Environment (JRE) 1.8
- Operating System (64bit): Windows 7, Mac OS X [>=10.6], Linux [e.g. Ubuntu Linux >=10.4]
- CPU: Multicore-Processor with 4 cores (or more)
- RAM: >4 GB
- Video-Memory: >512 MB
- Free Disk Space: 512 MB
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How to check your JVM version (32- or 64-bit):
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You can try on the command line:
If it's not a 64-bit version, you'll get a message that looks like:
Code: This Java instance does not support a 64-bit JVM. Please install the desired version.
In general, I recommend to install the 64-bit version of the JVM for Java 8.
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| flat primitives scaling |
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Posted by: Philippe Hurbain - 2015-12-11, 9:20 - Forum: Official File Specifications/Standards
- Replies (6)
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I suggest to update text from primitive reference from
Quote:To avoid matrix arithmetic problems in some renderers, the third dimension ({y} in the default orientation) of two-dimensional primitives must be given a scaling factor of 1.
to
Quote:To avoid matrix arithmetic problems in some renderers, the third dimension ({y} in the default orientation) of two-dimensional primitives must be given a non-zero scaling factor.
There is no reason to restrict this value to 1, the only point is to avoid a non-degenerated transformation matrix.
This change should avoid sterile discussions such as this one: http://www.ldraw.org/cgi-bin/ptdetail.cg.../u9228.dat
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| Call for votes: Document description prefixes in Official Library Header Specification |
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Posted by: Travis Cobbs - 2015-12-10, 19:08 - Forum: Standards Board
- Replies (6)
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Please vote on the following change to the Official Library Header Specification:
Quote:Appendix VI
Programs relying on the parts.lst file rather then the LDRAW_ORG meta-statement use special characters to prevent the parts being included in the list:- The descriptions of all subparts (i.e. line 4 = '0 !LDRAW_ORG Subpart') must start with '~'.
- The description of all obsolete parts, maintained for backwards compatibility must start with '~'.
- The descriptions of all aliases (i.e. line 4 = '0 !LDRAW_ORG Part Alias') must start with '='.
- The descriptions of all physical colour parts (i.e. line 4 = '0 !LDRAW_ORG Part Physical_Colour') should start with '_' .
The use of '~' for non "s\" part files is at the author's discretion, to hide mouldings that are not released independently. This is one case where merely reading the LDRAW_ORG line is insufficient for tools to know how to treat the file.
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