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LeoCAD 0.73

  Date Added: May 03, 2010  |  Visits: 780


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LeoCAD is a CAD program that uses bricks similar to those found in many toys (but they dont represent any particular brand). Currently it has a library of more than 1000 different pieces, most of them were created by James Jessiman (the author of LDraw). Intallation: The first thing you should do is check that you have an OpenGL library installed in your computer by typing /sbin/ldconfig -p |grep libGL, you should see listed in the output. If you cant find it, then you should download and compile Mesa 3D. Dont forget to add the Mesa installation path to /etc/ or LD_LIBRARY_PATH and run /sbin/ldconfig. The next step is to download the executable and the pieces library. After the download is complete you have to extract the pieces library to any directory of your choice but if you choose a place other than "/usr/local/share/leocad/", youll have to set the variable LEOCAD_LIB to that directory. Now you should extract the LeoCAD precompiled binaries, to any directory and run "leocad". If you prefer to compile the program yourself, you can use the cvs server (password is guest) to checkout the module leocad. I recommend using the tag for the last released version, for version 0.73 its leocad-0-73. You can do this by typing: $ cvs -z3 -d login Enter "guest" without the quotes when asked for a password to login. Now to download the latest released version, type: $ cvs -z3 -d checkout -r leocad-0-73 leocad Or if you want the latest development version: $ cvs -z3 -d checkout leocad Keyframing Each object in a LeoCAD project can have a different position and orientation for each step or frame that it appears. This feature is called keyframing, and works differently if the program is in Instruction or Animation mode. This is very useful when creating instructions because it allows you to have a door open in one step and closed later, or have the camera display the model from a different angle on a certain step to show details from another section of the model. If youre in animation mode, LeoCAD automatically interpolates the value of the previous key with the value of the next key to calculate the position of the object at each frame. This makes the creation of animations a very simple thing because you only need to set the start and end positions and LeoCAD will take care of the other frames. When the Key Button () from the Animation Toolbar is depressed, a new key is added at the current step/frame each time you move or rotate an object, if a key doesnt already exist. When the icon is not pressed, the changes are made to the key immediately before the current step/frame. Instructions and Animations LeoCAD can be used to create building instructions and animations, making it a very powerful editor. When you start the program youre placed in Instruction mode by default, you can switch between Animation and Instruction mode using the Mode Button () from the Animation Toolbar. Each program mode stores the position and orientation of all objects in separate places, so changing the position of an object on one mode does not change it on the other mode. To easily copy the position from the other mode, choose Copy Keys From ... from the Pieces Menu. When youre in Instruction Mode, each time unit is called a Step and when youre in Animation Mode, each time unit is called a Frame. The most important difference between the 2 modes is how Keyframing works..

Requirements: No special requirements
Platforms: Linux
Keyword: Animation Graphics Key Leocad Mode Multimedia Position Program
Users rating: 0/10

License: Freeware Size: 839.68 KB
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