How to use this program

This program displays a polyhedron which is defined in the "vertex list" and "face list". Every face is assumed to be a triangle, which means you need to input 3 points in order to specify a face.

Basic operation

If you want to make use of sample data in a server
Double click one polyhedron in "Data Selection", then the polyhedron you chose will appear on the canvas.
If you want to input your own data
Make sure both of the lists are empty. If not, just click the "Clear" button under the lists. Then input data in the input area under the list, and click "Add" button. Your data will show up in the list.

note: The x,y,z axes in the canvas have 20(Unit) length.

Modification to the data in the vertex / face list

You can "Change", "Add", "Delete" and "Clear" the data in the list.

General rule

Remember that all the data must be in the input area at first in order to update the list with these data.
If you want to copy a line in the list to the input area, just double click it. the item will be also highlighted
If you want to highlight the item, just click it.
If you want to increase/decrease the data in the input area by -/+ , click < / > buttons.

Redraw option

If you want to update a picture every time you change data in the list, redraw option should be "Every time"(default). If you want to wait until you set up everything, choose "Once". When you are done, chose "Once" again.

Change: Highlight the item that you want to change in the list. Then input the data with which you want to replace the highlighted item. And click "Change" button.
Add: Highlight the item under which the new item will be inserted. Input the data in the input area . Click "Add" button. If you do not highlight anything, the new item will be inserted at the bottom.
Delete: Highlight the item that you want to delete. Click "Delete" button.
Clear: If you want to clean up all the items in the list, click "Clear" button.

Modification to the appearance

Rotation: The polyhedron will rotate around a horizontal line in the projected screen. You can change the rotation speed with the "speed" scrollbar.
You can also stop and start the rotation using "Rotation" choice button.
Color: You can change the color of the front face and back face of the polyhedron and the background color using the choice button and RGB scrollbars.
Zoom: You can change the size of the polyhedron.
Mouse drag: You can also change the direction of the polyhedron by using mouse drag on the canvas.