Label in mirrored hotlink

[rav668]

Hello,
I would like to ask if there is a function in gdl to check if hotlink in which the object is located has been mirrored. To be more specific I am using wall labels in modules. Without this function, hotlinks are almost useless.
Best regards,
Rafał.

[Kristian Bursell]

Hi all, I cant remember exactly how I got it to work and I don't have time to look into it right now but I will play around with it later this week. From memory I used the the wall_direction parameter in conjunction with symb_mirrored.

Sorry @Bruce I didn't see your question earlier, I must have missed the notification some how. I will get a solution for you ASAP as I know I did get it working.

[Bruce]

I used a user-set parameter (hotlink_use) combined with the WALL_FLIPPED AC parameter to get the label to behave correctly:

flip = 1
IF hotlink_use & WALL_FLIPPED THEN flip = NOT(flip) 

[Ignacio Azpiazu]

Bruce, could you post that fixed label? I can't understand how that fits into the script, and I don't know whether it is missing lines that should be obvious to anybody but me, or just different parameter or variable names in your label (I would try to fix a USA library label).

[Bruce]

 I will try to post more info when I have some more time...

[Bruce]

So, as stated earlier, what you need to do is add a boolean parameter that the user sets.  I have called this "hotlink_use" with the description of "Flip in mirrored hotlink".  Default OFF.

With a wall label, you also will probably have a parameter already where the user can choose which side of the wall the label appears.  In my part, this is a length parameter is called "flipmark1" (forgive the naming...I inherited the part), and can have a positive or negative value (a hard-coded distance for the label).

In the 2D script, I have a flag variable to use in my ADD2 statements depending on whether the label should be flipped or not.  This is named 'flip'.  I then run a series of tests to offset the label to the correct side of the wall.

In the below sample script, "hdepth" is the offset Y coordinate of the label.

flip = (flipmark1 >= 0)  ! Set flip to 1 or 0

IF hotlink_use & WALL_FLIPPED THEN
   flip = NOT(flip) ! Adjust for mirrored hotlinks (selected by user)
ENDIF

flip = flip-1*NOT(flip)  ! change 0 and 1 to -1 or 1

hdepth = A*(GLOB_SCALE/100) * flip

ADD2 0, hdepth

There will be more to your script, but this is the fundamentals of the transformations I've used.  I hope this has helped.