[CONTENTS]
- LANDING GEAR SIMULATION
- MPAPLAY
- YSVRML20
- YSRENAME2
- QUICK-COMMAND-LAUNCHER
- THERMODYNAMICS1
- THERMODYNAMICS2
- SOLIDMECHS1
- SOLIDMECHS2
LANDING GEAR SIMULATION03/08/1999
[DOWNLOAD]
This program is developed for a project assignment of "Computational Designtools" class in CMU. The assigment was: Assume we are designing landing gear of an airplane. We have to design a gear so that it does not collide with other parts while extending or lowering the gear. So we have to write a program that checks the collision between landing gear and other parts. The assigment also said that if I can render the collided volume, I can get an extra credit!It's exactly what I was studying in previous university! There's no reason to miss this extra credit!
The program will show you key operation in the console window when you launch the program. I briefly explain opreation below.
- Press Ctrl+DownArrowKey to open the door of landing gear.
- Press DownArrowKey to extend the gear a little bit.
- Press Shift+DownArrowKey to lower the gear.
While writing this program, I made a simple Boolean Operation routine. Hmmm, I want to make a new polygon editor with this routine.... But I cannot play too much with programming until I pass the Ph.D qualifying exam this May. So, maybe sometime later.
Also this program is slow because it is calculating collision every frame. You can press C key once to stop collision detection. Then, it will become faster. But, I compiled this program with Blue Impulse 3DG-SDK OpenGL Implementation. So even if you stop calculating collision, it will not be lightning fast like other Blue Impulse applications.
Lastly, you can rotate viewing direction by mouse left button. And press P key to toggle polygon/wireframe.
MPAPLAY[DOWNLOAD]
MPAPLAY is a program to play a Motion Path Animation format file. I was using extension "MPA" as "Motion Path Animation" for a long time. But, recently, someone began using MPA for the different meaning. (A kind of MPEG? I don't know.) So MPA here has nothing to do with MPEG or something like that.MPA format file is generated by programs like AcroX. AcroX is a updated version of AcroEditLT that is included a package of "3D Screen Saver SDK Saber"(ASCII). It is available from my Web page.
MPA is upgrading and gaining new features. So please use newest version of MPAPLAY. Old version of MPAPLAY cannot play some of recent MPA files.
I included some example MPA file with this archive. So please take a look.
YSVRML20[DOWNLOAD]
This program is a VRML 2.0 Viewer. You don't have to have Web browsers to use this program. In addtion, this program can export PostScript file. Also it can export SRF format that can be used in Blue Impulse 3DG-SDK application. But, compressed VRML is not supported. And there's some unsupported node. If this program find such nodes, usually ignore and make best effort to show VRML object.YSRENAME2[DOWNLOAD]
YSRENAME2 is a file renaming utility. Suppose that you have 99 files, a01.dat,a02.dat,a03.dat .... a99.dat . One day, you got 100th file. What would you do then? It's very boring job to change filename a01.dat,a02.dat .... into a001.dat,a002.dat,....,a099.dat .In such situation, YSRENAME2 will help you. Just drag&drop files into YSRENAME2 and you can change all filenames in easy and quick operation.
YS-QUICK-COMMAND-LAUNCHER[DOWNLOAD]
It's a kind of single line command prompt (with history). It's useful when you want to open a window of a deeply layered directory. Or, to launch a program that you know a filename, but that is not registered to STARTMENU nor DESKTOP.Let's use Windows95/98/NT by keyboard!
Homework Program for Thermodynamics1(1)(With C++ Source)[DOWNLOAD]
I developed this program to solve the homework problem of Thermodynamics1, Mechanical Engineering Department in Carnegie Mellon University. This program shows the graph of Compression Ratio, Efficiency and Specific work of 2 Stages Intercooler System and Regeneration System.Well... I didn't have to rotate the graph freely in 3D space, this program rotates the graph freely upon pressing mouse right button. F1,F2,F3 key to show the straight graph of Eta-Sw,CR-Sw,CR-Eta. It is implemented as just the change of viewing point. Left and right arrow key to move cursor. Return key to make a snapshot of PS file.
You can use this program as an example of Blue Impulse 3DG-SDK.
Homework Program for Thermodynamics1(2)(With C++ Source)[DOWNLOAD]
It's the second program I developed for the homework problem of Thermodynamics1. This program draws the graph of the bypass ratio and the efficiency ratio between bypassed and no-bypassed Jet-Engine. I developed this one by modifying first one. It's also a good example of Blue Impulse 3DG-SDK.
Homework Program for Intro to Solid Mechs1(1)(with C++ source)[DOWNLOAD]
CMU homework series 3rd. This program visualizes the Traction Force and Stresses of a Cube Element. I didn't have to develop the program, but I wanted to visually understand the relation of Traction Force and Unit Cube Orientation.Mouse Right Button to rotate viewing direction, Left Button to Zoom/Mooz. Cursor key to rotate Cube Element. Along with the rotation of the Cube Element, Traction force, Normal force and Shear stress changes. SPACE key to specify Cube Element Orientation by two vectors. Stress components are written in the file "stress.dat". If you specify the Principal Direction, you will see Shear Stresses goes to zero. (Because of some FPU errors, not absolute zero). It also has the C++ source. You can read this program as an example of Blue Impulse 3DG-SDK.
Homework Program for Intro to Solid Mechs1(2)(with C++ source)[DOWNLOAD]
Again it's the program to fight against(?) the homework problem of Intro to Solid Mechs1. This program visualizes the Strain of the Cube Element.Operation is similar to previous program. Mouse to rotate/zoom/mooz. Cursor key to rotate the Cube Element. Stretched Cube changes its shape with the rotation of the Cube Element. Strain Components are written in "strain.dat". SPACE key to specify the orientation of the Cube Element by two vectors. If you specify the principal direction, Stretched Cube becomes rectangular parallelapiped.
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