Science Forums 2

[TheBigDog]

Originally Posted by TheBigDog

Well, here it is. Ugly and bloated, but functional. I need to step away from it for a while. Then I will add rockets, stages, and thrust vectors to the thing. For now you can do fun things like make a universe of two bowling balls 1 km apart and see how long it takes them to come together from their gravitational attraction.

Bill

The Add button makes a new object. All of the data is blank.

The Update button takes the values in the text fields and applies them to the controls. If any of them is left blank it disables that object and it will not be part of the sim. If all of them are blank it deletes the object from the list. The last text field is pretty much useless as the aVelocity is calculated from the velocities in the three dimensions.

The Open button lets you open a new sim. It does not prompt you to save your current.

The Save button saves your current sim. Note: it saves based on the current runtime values in the fields, not on the values in the text boxes.

The Reset Sim button resets it to use the values in the text boxes. Basically is starts it over again.

The Start/Stop button does just that. It also is the point where the log is committed to the log file (at stop).

The Log Interval is how often it adds the current values to the log. I have it defaulting to every minute. the rest is the information about where the logging happens.

In the log file it SHOULD always have the first row as the column headers, but I never did get that working perfectly. Sometimes it misses the header and 0 entry . It was also giving me blank lines in the log that I could not replicate in testing.

Bill
(originally from PM to Craig. Why I didn't just post it is beyond me...)