Image Swap Based on Position Logic

Hello,
I'm hoping someone might be able to help me with some logic statements. I'd like to do an image swap on one object based on the position of another object within the model I'm building.

I'd like to be able to manipulate the image attributes of at least one of the objects by using Global Variables created from the Tree Node Object List and then calling for an image swap when the second object is within the specified X,Y position parameters within the model.

Has anyone accomplished anything like this? Thank you in advance for any help you might be able to offer!

William.

William,

Since the image swap you are doing sounds like it will only effect the visualization of the model and not its behavior I recommend that you put the code for this on the OnDraw trigger of one of the objects. In the trigger you can get the x, y, and z locations of the two objects with the xloc, yloc, and zloc commands.

To make the shape change easier I would recommend using frames. The documentation combined with some prior posts on the forum should be more than enough to help you make a framed shape for your model. Frames are basically multiple 3D shapes that are all loaded under the same name (The operator works this way). This allows you to set the shape of an object to one shape and then change it later by calling setframe() on the object and setting the shape to another frame. To reference one object from the other I would recommend a global variable or a center point connection.

If you follow these steps it should make it possible for you to do this whole thing without having to get too complex.

Good Luck,
Brandon

Brandon,
Thank you! I’ll give that a try, from what you are describing it is actually easier to manipulate the image using the provided Flexsim controls. This should give me a good start. I’ll let you know how it works out!
Thank you again for your kind assistance!
Bill

Brian,
I'm completely stumped! I don't get any errors when the code compliles. But I never do see a frame swap in the model. I've named them px5c.3ds for the base 0 image and then i've named the images px5cFRAME1.3ds etc for the other images, any thoughts? Thanks again for any help or advise you can offer here..
Bill,
/**Custom Code*/
treenodecurrent = ownerobject(c);
treenode view = parnode(1);

// If this function returns a true, the default draw code of the object will not be executed.
// If then with frameswap for animation.
// Variables are Op17 for the Operator17
// and Proc12 for the Processor12.
// As defined in the Global Variable options.
// by selecting Treenode/Operator17 etc.
// Logic to examine if Operator17 is at
// specified X loccation should trigger
// Frame swap on Processor12.
// Code placed in Operator17, Properties: Custom Draw Code.
// ex: if(getframe(current) == 3)) setframe(current, 5);

if (xloc(Op17)== 42.11 )
{
setframe (Proc12,1);
}

else if (xloc(Op17)== 19.39 )
{
setframe (Proc12,2);
}

else if (xloc(Op17)== 14.00 )
{
setframe (Proc12,3);
}

else if (xloc(Op17)== 9.26 )
{
setframe (Proc12,4);
}
else
{
setframe (Proc12,0);
}

Bill,

My bet is that you are not seeing frame changes because you are using absolute comparisons and it is highly unlikely that a distance will be 9.26 and not 9.2600001. I would recommend using >= or <= in your comparisons. That should solve your problem.

Brandon

xloc() returns a double with significantly high precision.

Doing a == operation on a double with high precision isn't the best idea.

try this:

int myxloc = xloc(current);// putting int instead of double rounds it down to the nearest integer
if(myxloc == 42)
{
setframe(Proc12,1);
}
else
{
setframe(Proc12,0);
}

...etc

You can also put print statements into your code to see what is firing using pt(), pd(), pf(), and pr(). They will display output to the Output Console (View > Output Console). This can be helpful for debugging.

B,

You da man! I'll have to buy you some dark sunglasses!

Phil,
I think you hit the nail on the proverbial head. Thank you!

Phil, Brandon...
Your suggestion worked flawlessly! Kudos...^5*2 :] Find code below..
/**Custom Code*/
treenodecurrent = ownerobject(c);
treenode view = parnode(1);
// If this function returns a true, the default draw code of the object will not be executed.
// If then with frameswap for animation.
// Variables are Op17 for the Operator17
// and Proc12 for the Processor12.
// As defined in the Global Variable options.
// by selecting Treenode/Operator17 etc.
// Logic to examine if Operator17 is within
// specified X,Y loccation should trigger
// Frame swap on Processor12.
// Code placed in Operator17, Properties: Custom Draw Code.
// ex if(getframe(current) == 3)) setframe(current, 5);
if(xloc(Op17)>= 40.0)
{
setframe (Proc12,0);
}

else if (xloc(Op17)>= 22.0 && zloc(Op17) >0)
{
setframe (Proc12,5);
}

else if (xloc(Op17)>= 15.0 && zloc(Op17) >0 )
{
setframe (Proc12,4);
}

else if (xloc(Op17)>= 9.0 && zloc(Op17) >0)
{
setframe (Proc12,3);
}

else if (xloc(Op17)>= 5.00 && zloc(Op17) >0)
{
setframe (Proc12,2);
}
else
{
setframe (Proc12,0);
}