topic Re: GDL: Array Parameter Defaulting to Zero in GDL

GDL: Array Parameter Defaulting to Zero

Lingwisyer — Fri, 26 May 2023 04:45:45 GMT

Hi all,

Any idea why the following is only changing the size of the sg_gridToggle & sg_lengthToggle arrays and not their values?

IF sg_noStoreyAbove > sg_noBasement then sizetokeep = min(vardim1(sg_customName), sg_noStoreyAbove) ! copy existing values dim sg_lengthCustom_temp[][] dim sg_lengthCustom2_temp[][] dim sg_lengthToggle_temp[][] dim sg_gridToggle_temp[][] dim sg_gridToggle_display_temp[][] dim lp1_temp[][] dim lp2_h_temp[][] dim lp2_v_temp[][] dim marker_flip_temp[][] dim marker_flip_display_temp[][] for i = 1 to sizetokeep sg_lengthCustom_temp[i][1] = sg_lengthCustom[i][1] sg_lengthCustom_temp[i][2] = sg_lengthCustom[i][2] sg_lengthCustom2_temp[i][1] = sg_lengthCustom2[i][1] sg_lengthCustom2_temp[i][2] = sg_lengthCustom2[i][2] sg_lengthToggle_temp[i][1] = sg_lengthToggle[i][1] sg_lengthToggle_temp[i][2] = sg_lengthToggle[i][2] sg_gridToggle_temp[i][1] = sg_gridToggle[i][1] sg_gridToggle_temp[i][2] = sg_gridToggle[i][2] sg_gridToggle_display_temp[i][1] = sg_gridToggle_display[i][1] sg_gridToggle_display_temp[i][2] = sg_gridToggle_display[i][2] lp1_temp[i][1] = lp1[i][1] lp1_temp[i][2] = lp1[i][2] lp1_temp[i][3] = lp1[i][3] lp1_temp[i][4] = lp1[i][4] lp2_h_temp[i][1] = lp2_h[i][1] lp2_h_temp[i][2] = lp2_h[i][2] lp2_h_temp[i][3] = lp2_h[i][3] lp2_h_temp[i][4] = lp2_h[i][4] lp2_v_temp[i][1] = lp2_v[i][1] lp2_v_temp[i][2] = lp2_v[i][2] lp2_v_temp[i][3] = lp2_v[i][3] lp2_v_temp[i][4] = lp2_v[i][4] marker_flip_temp[i][1] = marker_flip[i][1] marker_flip_temp[i][2] = marker_flip[i][2] marker_flip_display_temp[i][1] = marker_flip_display[i][1] marker_flip_display_temp[i][2] = marker_flip_display[i][2] next i ! initialize new values, will be skipped when decreasing size for i = sizetokeep + 1 to sg_noStoreyAbove sg_lengthCustom_temp[i][1] = sg_length sg_lengthCustom_temp[i][2] = 0 sg_lengthCustom2_temp[i][1] = 0 sg_lengthCustom2_temp[i][2] = 0 sg_lengthToggle_temp[i][1] = 1 sg_lengthToggle_temp[i][2] = 1 sg_gridToggle_temp[i][1] = 1 sg_gridToggle_temp[i][2] = 1 sg_gridToggle_display_temp[i][1] = "Show" sg_gridToggle_display_temp[i][2] = "Show" lp1_temp[i][1] = marker_length/4 lp1_temp[i][2] = marker_length/4 lp1_temp[i][3] = marker_length/4 lp1_temp[i][4] = marker_length/4 lp2_h_temp[i][1] = marker_length/4 lp2_h_temp[i][2] = marker_length/4 lp2_h_temp[i][3] = marker_length/4 lp2_h_temp[i][4] = marker_length/4 lp2_v_temp[i][1] = 0 lp2_v_temp[i][2] = 0 lp2_v_temp[i][3] = 0 lp2_v_temp[i][4] = 0 marker_flip_temp[i][1] = 1 marker_flip_temp[i][2] = 1 marker_flip_display_temp[i][1] = "Top" marker_flip_display_temp[i][2] = "Top" next i ! store array with new size sg_lengthCustom = sg_lengthCustom_temp sg_lengthCustom2 = sg_lengthCustom2_temp sg_lengthToggle = sg_lengthToggle_temp sg_gridToggle = sg_gridToggle_temp sg_gridToggle_display = sg_gridToggle_display_temp lp1 = lp1_temp lp2_h = lp2_h_temp lp2_v = lp2_v_temp marker_flip = marker_flip_temp marker_flip_display = marker_flip_display_temp parameters sg_lengthCustom = sg_lengthCustom parameters sg_lengthCustom2 = sg_lengthCustom2 parameters sg_lengthToggle = sg_lengthToggle parameters sg_gridToggle = sg_gridToggle parameters sg_gridToggle_display = sg_gridToggle_display parameters lp1 = lp1 parameters lp2_h = lp2_h parameters lp2_v = lp2_v parameters marker_flip = marker_flip parameters marker_flip_display = marker_flip_display

Snippet from this object.

Ling.

Re: GDL: Array Parameter Defaulting to Zero

Palawat — Sat, 27 May 2023 00:53:21 GMT

You might want to add ;

sg_gridToggle = sg_gridToggle_temp

before ;

parameters sg_gridToggle = sg_gridToggle

Re: GDL: Array Parameter Defaulting to Zero

DGSketcher — Sun, 28 May 2023 10:55:50 GMT

You could try resetting the parameter values with an empty array e.g.

Dim arrNull2 [1] [1]

arrNull2 [1] [1] = "initial value"

oldarray = arrNull2

parameters oldarray = oldarray

I have situations where my parameter arrays wouldn't downsize and rebuilding from an empty array seemed to cure it.

Re: GDL: Array Parameter Defaulting to Zero

Lingwisyer — Mon, 29 May 2023 02:02:17 GMT

@Palawat You might want to add ;

sg_gridToggle = sg_gridToggle_temp

That was done just a few lines above.

@DGSketcher You could try resetting the parameter values with an empty array e.g.

Isn't that what DIM sg_gridToggle_temp[ ][ ] does? Or is there something else I should be doing?

Ling.

Re: GDL: Array Parameter Defaulting to Zero

DGSketcher — Mon, 29 May 2023 09:24:22 GMT

I started doing that in order to force the original dynamic parameter array to shrink before repopulating it with updated values. Maybe Parameter Arrays are processed differently to simple variable arrays. Sorry I'm not a GDL expert and my solutions usually come from trial & error.

Re: GDL: Array Parameter Defaulting to Zero

Lingwisyer — Tue, 13 Jun 2023 06:53:17 GMT

Might it be related to:

During the interpretation, when a non-existing dynamic array element is given a value, the necessary quantity of memory
is allocated and the missing elements are all set to 0 (numerical).

Though only these two arrays are doing it...

Re: GDL: Array Parameter Defaulting to Zero

Lingwisyer — Wed, 14 Jun 2023 06:41:52 GMT

Hm... I partially fixed it... I realised that since I had combined the up and down arrays [u][d] the values between the short and tall sides [u][u-x] were not getting set in the short side of the array [u-d]. This was an easy enough fix.

sg_lengthToggle_temp[i][1] = sg_lengthToggle[i][1] sg_gridToggle_temp[i][1] = sg_gridToggle[i][1] sg_gridToggle_display_temp[i][1] = sg_gridToggle_display[i][1] IF i > sg_noBasement then sg_gridToggle_temp[i][2] = sg_Toggle_default sg_gridToggle_display_temp[i][2] = "Show" sg_lengthToggle_temp[i][2] = sg_Toggle_default else sg_gridToggle_temp[i][2] = sg_gridToggle[i][2] sg_gridToggle_display_temp[i][2] = sg_gridToggle_display[i][2] sg_lengthToggle_temp[i][2] = sg_lengthToggle[i][2] endIF ... ======================================================================================== ... IF i > sg_noStoreyAbove then sg_gridToggle_temp[i][1] = sg_Toggle_default sg_gridToggle_display_temp[i][1] = "Show" sg_lengthToggle_temp[i][1] = sg_Toggle_default else sg_gridToggle_temp[i][1] = sg_gridToggle[i][1] sg_gridToggle_display_temp[i][1] = sg_gridToggle_display[i][1] sg_lengthToggle_temp[i][1] = sg_lengthToggle[i][1] endIF sg_lengthToggle_temp[i][2] = sg_lengthToggle[i][2] sg_gridToggle_temp[i][2] = sg_gridToggle[i][2] sg_gridToggle_display_temp[i][2] = sg_gridToggle_display[i][2]

I was hoping my issue with increasing the overall array size would be solved in a similar way but this would seem to not be the case... So for [u][d], increasing d until it matches u, or viceversa, gives the correct default values, but increasing the max(u,d), still gives the incorrect return...