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3D Studio Max
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3d Studio Max - Maxscript
GUI - Hand Controls
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bzudo 151 posts28 Jan 2008I'm following Tysons GUI setup. I have a rectangle spline and a line spline. I want to have the rectangle spline remain on the line spline as it controls the finger curl. I don't want the rectangle spline to move beyond the line spline. Any ideas?
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28 Jan 2008Well you could lock the rectangle spline's positional movement to the axis of the line, or you could wire something up where you find the bounding box coordinates of the line, and tell the rectangle so stay inside those coordinates.
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bzudo 151 posts28 Jan 2008i did the first part. i've locked the movement of the rectangle to the Y dimension. as for the second part, i'm not exactly sure how to do it. is the bounding box something i can discover using the maxscript listener?
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28 Jan 2008$.max and $.min should give you the coordinates
...of course, you'll want to do it in parent space.....
Probably a simpler method would be to position your rectangle at the end of the line, find out how much it's travelled to get there (look at bottom transform boxes to see distance WHILE you're moving it), then reset it's position and in wiring parameters, just tell it not to let Y travel more than that much (assuming your controller is zero'd out, so that its Y position is 0 when it's at the default position on the line. -
bzudo 151 posts28 Jan 2008i've determined that the maximum distance i want the rectangle to travel is 15. currenty i have "Y_Position/30" in the wire parameters. i'm not sure how to tell max that i want the rectangle to stop at 15. would this be an if/then statement? or an array? i'll keep trying.
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28 Jan 2008Yep...an if statement.
So basically,
if (y_position/30) > 15 then 15 else if (y_position/30) < -15 then -15 else (y_position/30) -
bzudo 151 posts28 Jan 2008well, i tried applying that to the y_position/30 parameter of the finger and the rectangle did not stop. do i need to wire the rectangle to the line or do i apply the code to the rectangle itself?
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28 Jan 2008Oh gosh...sorry mate...one thing I forgot to mention (one very important thing) is that you have to set your wire parameter to 2-way, and make sure you add that line of code to *both* sides (you'll need to adjust it to work for either side...because they may not necessarily be both working on the other object's "y_position"
I've attached a sample file showing what I did....just look at the wirings between the box and the rectangle -
bzudo 151 posts29 Jan 2008thanks, i'll take a look at this after work.
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bzudo 151 posts30 Jan 2008yeah, i checked out the file. thanks again. this makes more sense.
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03 Feb 2008looks like you already figured this out but another way of doing it is that you can put a "float limit" controller on the y position and limit it to the distance it travels from its parent. You said the distance it traveled was 15 so the upper limit would be 15 and the lower limit would be how ever far it travels in the negative. Setting the limits will make it so that the object can not move out of the limits specified.
I am just learning maxscript now, but this is how I have figured out how to do it in the past. -
03 Feb 2008
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bzudo 151 posts03 Feb 2008
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06 Mar 2008
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