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Bas de Jong

OpenG Read GIF File slow to execute?

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Hello, I'm trying to display an animated GIF on the front panel. This gif should be loaded programmatically based on some user event. My google search led me to use the OpenG Read GIF File (Animated)__ogtk.vi file. However, loading a GIF is extremely slow. It takes almost 20 seconds to execute the vi when I load the attached GIF (I found randomly on the internet). Is this normal? And if so, is there a way to load a gif faster? Because I need to load several and I cannot afford to load maybe 2 minutes only for the gifs.

GIFexample.gif

Edited by Bas de Jong

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The LWZ Unpack algorithm is very slow in the OpenG implementation.
I found this post over in the NI forums and tested it with your image... much faster.

https://forums.ni.com/t5/Example-Program-Drafts/Read-GIF-File/ta-p/3514726

Edit: Set image to "-1" to load them all:

 

Edited by Francois Normandin
  • Like 1

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It might also be possible to load a GIF into a .Net PictureBox.  I have some demo code for this but for some reason I get a .Net exception but others online have said it is possible.

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15 hours ago, Francois Normandin said:

The LWZ Unpack algorithm is very slow in the OpenG implementation.
I found this post over in the NI forums and tested it with your image... much faster.

https://forums.ni.com/t5/Example-Program-Drafts/Read-GIF-File/ta-p/3514726

Edit: Set image to "-1" to load them all:

Nice.

It's screaming out to be made into an xControl, IMO. 

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43 minutes ago, ShaunR said:

It's screaming out to be made into an xControl

I said xControl first... 😏

 The solution of the Program Drafts above is for sure a lot more developed - all the decoding of gif in G, honouring the time lags between frames, etc. etc.

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27 minutes ago, ensegre said:

I said xControl first... 😏

 The solution of the Program Drafts above is for sure a lot more developed - all the decoding of gif in G, honouring the time lags between frames, etc. etc.

Well done for volunteering I look forward do testing it :D

Edited by ShaunR

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0000000013F9C704\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\0ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿúïêôÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿËž“Š„€z€}{zzwx|{wwxswyvttquvrtqpprqsrpvppsquqqusputquxusswwssttvwtwt}yqvuxuzvvuwtwvvtvrwrqpupgc\\XYZX\\XW[[UVVWUXTRTRURUQQSPNQNNOKKLKLJLJFEDEEBBC?B??=:>@CDHGHHIJGJEGDFEHJGFDBADDCCEDBCFILS^ao€–³Òñÿÿÿÿÿÿÿÿÿÿÿÿ\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00ÿÿÿÿÿÿÿÿÿÿÿÿÿÿìÛËÚ̾¶³³³¼³Àìÿãϸ¬ª£¤œ‘‘‹Ž‰Œ‡…€†~z~}x{||}z~xx}}v{syx{vwwwzyywxxxxwwuruwzyvwszvzt{z{yv{wy|{vyw{zzwy~y}xzz}y{|€†€‚€€‚ƒƒ†}‡ƒ…‡‡†‹ŠŒŒŽ‹‹•š’–”›žœ›  ¡¢©©©±²µ¶º½ËÒåÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿýëä÷ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Ž‹…†|ƒ}~xv~z{zu{wvvvuutvssqssusotqrwruxtrpqrrotusrvuwywrsuusyxvywxtvsvwuuwvwywquvvuvswtvqpplge^\\VYWYXWYXSWVUZUVQSUTSRTTUNONMKMMKKMJLLLJGEDC@CA?@@@??=CBDGGJLJIJGGIGHEFGFHHCBCBADCAADDIOWZiq„œ·Ôïÿÿÿÿÿÿÿÿÿÿÿÿ\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00ÿÿÿÿÿÿÿÿÿÿÿÿÿÿåÙ×âɺµ®¶¶³·ÍýÿßDz¨¤¢¥š–“‰ˆ‰…‚‚‚~~z}x}}~xxxwyy}xwzwzvywuvxyuxtvyxvvwtyqvpzv|zvzzy{xzzzxx{yxyzyzxw}{y~{}|~€{{|‚‚„ƒ‚…‡€{‚‚„‚‡Š‰‡‰Š‹ŠŒ‰ŒŽ‘Ž’••’“š™žš™›Ÿ¡§ž£ªª®²´»½ÂÉÚïÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿøàéÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿô»žŒˆƒ€~}~}||w{yzxuwwuxvrtvtvtrqpuotqppttvtxsstqqtrtpswtwwvsusuvwxxxxvxuxxvvtx{ux{uuvttxtsssspoja\\Z\\YYZXWYWSSWXWWUSRPTUQSRNQPQNOLNLLKJJIHFFHECA?A?><@?=?ADHFELIHHJIIGEHFGJJDEFBCBECEACDGJPX_fs‡¢»Úóÿÿÿÿÿÿÿÿÿÿÿÿ\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00ÿÿÿÿÿÿÿÿÿÿÿÿÿÿé×Ýã¾·®´´Âº»Ò Camara 2 = "0,000000" led_boca = "FALSE" Buena_boca = "0,000000" mala_boca = "0,000000" Espiga = "0,000000" led_espiga = "FALSE" buena_espiga = "0,000000" Bulbo = "0,000000" led_bulbo = "FALSE" buena_bulbo = "0,000000" Cuello = "0,000000" led_cuello = "FALSE" buena_cuello = "0,000000" mala_cuello = "0,000000" Cuerpo = "0,000000" led_cuerpo = "FALSE" buena_cuerpo = "0,000000" mala_cuerpo = "0,000000" Excentricidad = "0,000000" Buenas = "0,000000" Malas = "0,000000" led_excen = "FALSE" EXCENT = "0,000000" Camara 2 Configuracion = "\00\00\00\15Threshold Destination\00\00\00\0Anivissvc.*\00\00\00\13LV_ImageDTClassInfo\00\00\00\01\00\00\00Á\00\00\10\0000\00\00\03\00\00\00\00\00\00\00\\00\00\00\00\00\00\00Threshold Destination" Excentricidad.<size(s)> = "6" Excentricidad 0. = "<size(s)=0> " Excentricidad 1. = "<size(s)=0> " Excentricidad 2. = "<size(s)=30> 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000" Excentricidad 3. = "<size(s)=30> 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000" Excentricidad 4. = "<size(s)=30> 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000" Excentricidad 5. = "<size(s)=30> 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000 0,000000" Nivel de luminosidad = "157,666672" led_luminosidad = "TRUE" Distancia promedio = "46,131313" Bordes encontrados = "33" Camara2_grafica = "0,000000" Dist_Cuerpo_Cnfig = "0,000000" Dist_Boca_Cnfig = "0,000000" Dist_Espiga_Cnfig = "0,000000" Dist_Bulbo_Cnfig = "0,000000" Largo total = "0,000000" led_largoTotal = "FALSE" cuello_config_cluster.Left = "0" cuello_config_cluster.Top = "0" cuello_config_cluster.Right = "0" cuello_config_cluster.Bottom = "0" cuello_config_cluster.Rotation = "0,000000" top_cuello_prod = "0" botton_cuello_prod = "0" PLC_Valor_Cuello = "0" ampolla_ok_prod = "FALSE" num_disparo_cam1 = "0,000000" PLC_Valor_Espiga = "0" PLC_Valor_Cam2 = "0" lim_min_ambar_boca = "0,000000" lim_max_ambar_boca = "0,000000" Largo Total.<size(s)> = "1" Largo Total 0. = "<size(s)=0> " Tab Control = "Camara 2" Cluster.Numeric = "0,000000" Cluster.Numeric 2 = "0,000000" Cluster.Numeric 3 = "0,000000" Cluster.Numeric 4 = "0,000000" Cluster.Numeric 5 = "0,000000" I resume "camara 1 configuration" because the rare symbols are about x10 more.
      Well, next step is to read this .ini file and now it does not give me any error but it stacks in "read panel from ini.vi" (maybe it takes about minutes for reading .ini).
      How can I do to write and read panel to/from ini well?
      It is very important for my application. Maybe there is another library that I can use?
      Thanks a lot!

    • By liskped
      Hi.
      Im working on this prosjekt where I have a TCP communication between two computers (Server & Klient). I have managed to get communication between those two. (Sending and reciving one cluster.) But I want to send and recive more than one. I looked at det Topic "Passing Cluster and Datatype Through TCP" on how to use the OpenG, but I have a problem with "the Variant to Data". 
      What am I doing wrong? Or is there another way to send more data?
       
      The Klient side:


       
       
       
      The Server side: 


       
       
    • By bbean
      After reading this LabVIEW Idea exchange request:
      http://forums.ni.com/t5/LabVIEW-Idea-Exchange/Provide-a-better-way-to-implement-a-polymorphic-VI/idi-p/920487
       
      I was inspired to create VI macro(s) to attempt to address the problem mentioned in the request.  Attached is my first attempt and I'm looking for feedback since I know people here have strong opinions.   The benefit of this method is that a single vim (or 2 could replace a polymorphic VI with over 48 separate VIs....unless I'm missing something.  I know that VI macros are not officially supported by NI, but that hasn't stopped us from using unsupported features before.  Some people have probably already done something like this, but I couldn't find an example.
       
      To use the files, unzip them and copy them all to your \LabVIEW (version)\user.lib\macros\ directory.  
      Create the directory if it does not exist.  For example: C:\Program Files (x86)\National Instruments\LabVIEW 2014\user.lib\macros\   And as described in the wait-ms-with pass through post below, modify your LabVIEW.ini file to have the following     ExternalNodesEnabled=True and Optionally     XNodeWizardMode=True   http://forums.ni.com/t5/LabVIEW-Idea-Exchange/Wait-ms-with-error-pass-through/idc-p/3178218#M31820
       
      Open the Example Changed.vi and review.
      Changed Example.zip
    • By drjdpowell
      OpenG’s Trim Whitespace fails on a string of all whitespace, if set to trim the front only.   It returns the last whitespace character.
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