topic how to link parameters to local variables in a label object in GDL

how to link parameters to local variables in a label object

soo — Thu, 15 Dec 2022 06:03:53 GMT

While making the label for slab complex, I found that the number of skins added to the complex was not automatically reflected.

after modifying the complex, Parameters reflecting the number of skins in the label are not reflected.

I tried to update this numText parameter to the current state by itself, but my ability was not enough.

It is updated only when I enter the settings and do some changes.

if GLOB_ELEM_TYPE = WALL_TYPE then
THICKNESS = WALL_THICKNESS
SKINS_NUMBER = WALL_SKINS_NUMBER
endif

if GLOB_ELEM_TYPE = SLAB_TYPE then
THICKNESS = SLAB_THICKNESS
SKINS_NUMBER = SLAB_SKINS_NUMBER
endif

if GLOB_ELEM_TYPE = ROOF_TYPE then
THICKNESS = ROOF_THICKNESS
SKINS_NUMBER = ROOF_SKINS_NUMBER
endif

if LabelType = LabelTypes[1] then
parameters numHotspot = SKINS_NUMBER + numTextAdd
parameters numText = SKINS_NUMBER + numTextAdd
endif

I'm happy to know how to solve this issue. Thank you.

Re: how to link parameters to local variables in a label object

Barry Kelly — Thu, 15 Dec 2022 06:21:25 GMT

Try this.

You may just need to set the value of the parameter to be used in your scripts as well as setting the parameter value you see in the PARAMETERS list.

You should never just use 'parameters numHotspot = SKINS_NUMBER + numTextAdd' as that changes the value in the list but not that actual value of the parameter used in the script.

if LabelType = LabelTypes[1] then numHotspot = SKINS_NUMBER + numTextAdd parameters numHotspot = numHotspot numText = SKINS_NUMBER + numTextAdd parameters numText = numText endif

Barry.

Re: how to link parameters to local variables in a label object

Peter Baksa — Tue, 20 Dec 2022 11:19:39 GMT

Hi,

To understand it better, think about variables and parameters as a different thing.

In the script you don't access the parameters, only their copies as variables. They get initialized with the parameters' values, but aren't kept in sync afterwards. After a variable is changed, the parameter value can't be accessed afterwards. Changing a variable doesn't change the parameter, changing a parameter with a PARAMETERS command doesn't change the variable.