Re: [Lazarus] All Demos Are Done

[Samuel Herzog via lazarus]

Wow, so cool! 
Great  work.
Congratulations.
 

Am Freitag, 3. Dezember 2021, 00:23:34 MEZ hat Anthony Walter via lazarus 
 Folgendes geschrieben:  
 
 I've completed writing all the demos and most of the documentation for my soon 
to be released vector graphics and physics simulation library. The library is 
named Tiny Sim and the first version will be published soon. I have lots of 
planned features and improvements to come.
If you are interested I posted a very brief overview page and a video 
containing all nine demos for my library on this web page:
https://www.getlazarus.org/videos/physics/demos/
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Re: [Lazarus] All Demos Are Done

[Samps via lazarus]

Works fine from where I am (in front of a MacBook) and it looks 
absolutely awesome!!



Samps

On 3/12/21 10:22 am, Mehmet Erol Sanliturk via lazarus wrote:



On Fri, Dec 3, 2021 at 2:23 AM Anthony Walter via lazarus 
 wrote:


I've completed writing all the demos and most of the documentation
for my soon to be released vector graphics and physics simulation
library. The library is named Tiny Sim and the first version will
be published soon. I have lots of planned features and
improvements to come.

If you are interested I posted a very brief overview page and a
video containing all nine demos for my library on this web page:

https://www.getlazarus.org/videos/physics/demos/
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At the top of the your supplied link page , the following message is 
displayed

( which is not copyable , I wrote it below myself ) :

(i) To play video , you may need to install the required video codecs.



When "Play" is clicked , it is displaying the following message
( which is not copyable , I wrote it below myself ) :


No video with supported format and MIME type found.


A display occurred below the video play area when I clicked something 
with

its partial output under "Console" tab is the following :


Specified “type” attribute of “video/mp4” is not supported. Load of 
media resource //cache.getlazarus.org/videos/tiny-sim-demos.mp4 
 failed. demos

All candidate resources failed to load. Media load paused. demos
SyntaxHighlighter.config home.js:120:10
The video on this page can’t be played. Your system may not have the 
required video codecs for: video/mp4 demos



I am playing  Youtube videos without any problem .

[s@localhost ~]$ uname -a
Linux localhost.localdomain 4.13.16-100.fc25.x86_64 #1 SMP Mon Nov 27 
19:52:46 UTC 20

17 x86_64 x86_64 x86_64 GNU/Linux
[s@localhost ~]$




With my best regards


Mehmet Erol Sanliturk









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Re: [Lazarus] All Demos Are Done

[Mehmet Erol Sanliturk via lazarus]

On Fri, Dec 3, 2021 at 2:23 AM Anthony Walter via lazarus <
lazarus@lists.lazarus-ide.org> wrote:

> I've completed writing all the demos and most of the documentation for my
> soon to be released vector graphics and physics simulation library. The
> library is named Tiny Sim and the first version will be published soon. I
> have lots of planned features and improvements to come.
>
> If you are interested I posted a very brief overview page and a video
> containing all nine demos for my library on this web page:
>
> https://www.getlazarus.org/videos/physics/demos/
> --
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> https://lists.lazarus-ide.org/listinfo/lazarus




At the top of the your supplied link page , the following message is
displayed
( which is not copyable , I wrote it below myself ) :

(i) To play video , you may need to install the required video codecs.



When "Play" is clicked , it is displaying the following message
( which is not copyable , I wrote it below myself ) :


No video with supported format and MIME type found.


A display occurred below the video play area when I clicked something with
its partial output under "Console" tab is the following :


Specified “type” attribute of “video/mp4” is not supported. Load of media
resource //cache.getlazarus.org/videos/tiny-sim-demos.mp4 failed. demos
All candidate resources failed to load. Media load paused. demos
SyntaxHighlighter.config home.js:120:10
The video on this page can’t be played. Your system may not have the
required video codecs for: video/mp4 demos


I am playing  Youtube videos without any problem .

[s@localhost ~]$ uname -a
Linux localhost.localdomain 4.13.16-100.fc25.x86_64 #1 SMP Mon Nov 27
19:52:46 UTC 20
17 x86_64 x86_64 x86_64 GNU/Linux
[s@localhost ~]$




With my best regards


Mehmet Erol Sanliturk
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[Lazarus] All Demos Are Done

[Anthony Walter via lazarus]

I've completed writing all the demos and most of the documentation for my
soon to be released vector graphics and physics simulation library. The
library is named Tiny Sim and the first version will be published soon. I
have lots of planned features and improvements to come.

If you are interested I posted a very brief overview page and a video
containing all nine demos for my library on this web page:

https://www.getlazarus.org/videos/physics/demos/
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Re: [Lazarus] up with Lazarus !

[Mehmet Erol Sanliturk via lazarus]

On Thu, Dec 2, 2021 at 4:43 PM Marco van de Voort 
wrote:

>
> Op 2-12-2021 om 14:37 schreef Mehmet Erol Sanliturk:
> > The fault is not in the program . If it were in the program I am sure
> > that it would produce a proper run time error . There is no such an
> > error . The run is terminated from different parts of the program by
> > the OSes  after a ( large number of thousand ) recursive entries into
> > almost
> > all of the involved procedures covering a very large portion of (
> > around ) 12000 procedures during transaction processing which involves
> > more recursions with respect to query .
> > When only the query part is used there is no problem . During small
> > transaction usage , again
> > there is no problem . Increasing system defined run time stack size is
> > not changing anything .
> >
>







> ulimit limits? Does it also happen running as root?
>
> Debian seems to have a 8k ulimit by default.  (type "ulimit -h")
> < This limit is defined for shell .
>
>

At present my NFS server has not been running for more than a few years .
If I start it I need to determine how to restart my work . This will take
some time .


I did not try Debian . Many years ago I  attempted to use Debian , but
I found that Mandriva was more suitable for me . When Mandriva closed down
, I switched to Fedora .


At present I am using Fedora 25 :


[s@localhost ~]$ uname -a
Linux localhost.localdomain 4.13.16-100.fc25.x86_64 #1 SMP Mon Nov 27
19:52:46 UTC 20
17 x86_64 x86_64 x86_64 GNU/Linux
[s@localhost ~]$


[s@localhost ~]$ ulimit -h
bash: ulimit: -h: invalid option
ulimit: usage: ulimit [-SHabcdefilmnpqrstuvxT] [limit]
[s@localhost ~]$ ulimit -H
unlimited
[s@localhost ~]$




[s@localhost ~]$ ulimit -a
core file size  (blocks, -c) unlimited
data seg size   (kbytes, -d) unlimited
scheduling priority (-e) 0
file size   (blocks, -f) unlimited
pending signals (-i) 30781
max locked memory   (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files  (-n) 1024
pipe size(512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority  (-r) 0
stack size  (kbytes, -s) 8192
cpu time   (seconds, -t) unlimited
max user processes  (-u) 30781
virtual memory  (kbytes, -v) unlimited
file locks  (-x) unlimited
[s@localhost ~]$ uname -a
Linux localhost.localdomain 4.13.16-100.fc25.x86_64 #1 SMP Mon Nov 27
19:52:46 UTC 20
17 x86_64 x86_64 x86_64 GNU/Linux
[s@localhost ~]$





Now I do not want to attempt to "improve" the existing operating systems
because
such improvements will not solve the inherent problems in developing and
using
large scale software stacks .

Reasons are shortly defined below .


My opinion about developing a new ( distributed and able to manage large
software stacks )
operating system is really a very important goal , because the existent
methods about
software development and maintenance is causing large amount of losses (
time , effort ,
money , ... ) . This structure based on ( let's say around )  1970
technology levels
are not suitable for today's requirements .


Many years ago when there was a need to a "secure programming language" for
large military system supporting software , the Ada is selected , but
failed ,
( with respect to my memory ( which I may be wrong )) because

(1) Ada was not able to compile itself due to its design ,
(2) The Ada compiler written in a "not-secure language" such as C could not
produce
  a "secure compiler" for Ada .

In those days , ( I do not remember name of the computing scientist who
expressed the idea )
the expressed idea was " ... the present day software systems can not
support development of required secure software for such a large military
system ... " .

Software development ( with all its components ) is not different from
construction of buildings conceptually :

It is possible to construct a 1-storey building by using earth-bags , but
you can not stack
three of them to construct a 3-storey building . You need to use brick at
least .

You can not construct a 9-storey building buy stacking three 3-storey
buildings constructed
from brick : You need to use concrete .

  .
  .
  .

Such technology and material changes are required during construction of
taller and taller
buildings .


During development of my program I have encountered a similar problem .

When the size of the program increased , it became necessary to change the
program
development system . When the size  of the program increased to a larger
level ,
the used method again collapsed , it became necessary to change the program
development
method once more .

These changes became necessary during increasing size of the program .

All of the ideas presented in "Software Engineering" literature usable in
small programs ( because they derived from small program projects )
are becoming 

Re: [Lazarus] up with Lazarus !

[Marco van de Voort via lazarus]

Op 2-12-2021 om 14:37 schreef Mehmet Erol Sanliturk:
The fault is not in the program . If it were in the program I am sure 
that it would produce a proper run time error . There is no such an 
error . The run is terminated from different parts of the program by 
the OSes  after a ( large number of thousand ) recursive entries into 
almost
all of the involved procedures covering a very large portion of ( 
around ) 12000 procedures during transaction processing which involves 
more recursions with respect to query .
When only the query part is used there is no problem . During small 
transaction usage , again
there is no problem . Increasing system defined run time stack size is 
not changing anything .



ulimit limits? Does it also happen running as root?

Debian seems to have a 8k ulimit by default.  (type "ulimit -h")


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Re: [Lazarus] up with Lazarus !

[Michael Van Canneyt via lazarus]

On Thu, 2 Dec 2021, Marco van de Voort via lazarus wrote:



Op 2-12-2021 om 11:45 schreef Mehmet Erol Sanliturk:


 Can I convert that program to JavaScript by using Lazarus ?


Afaik the pas2js transpiler compiles to an low level javascript that 
might not be suitable for maintenance after.


This is not correct. The code is perfectly readable and maintainable.
Some of the constructs used are of course specific to the pascal object
language.

For instance I do all the debugging in Javascript, and this is perfectly
doable. The code is very readable, and you should not have any problem
stripping out what you think is too pascal-ish.

What you cannot expect to be able to do is recompile from pascal and have
the compiler incorporate changes you made to the generated javascript.

Michael.-- 
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Re: [Lazarus] up with Lazarus !

[Michael Van Canneyt via lazarus]

On Thu, 2 Dec 2021, Mehmet Erol Sanliturk via lazarus wrote:


Since the subject is
"up with Lazarus"
can I ask one question as follows :

I have  a Pascal program having  ( around ) 12000 procedures and a small
number of
units and it is compiled with Lazarus / Free Pascal only in Unix-like
operating systems
such as Linux and FreeBSD .

(1)
After converting all of the variant records to  non_variant records
( by removing "case " related part of its tag line , by keeping the tag
variable ) ,

(2) There is no any "Initialization" , "Finalization" parts in units

(3) Nearly all of the constants , types , and records are marked with their
unit names
 such as   Unit_A . constant_name , etc. .


Can I convert that program to JavaScript by using Lazarus ?


Yes.

You can use pas2js to convert it to javascript; provided your program does
not do any file IO or GUI, this should be relatively painlesss.

Michael.
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Re: [Lazarus] up with Lazarus !

[Marco van de Voort via lazarus]

Op 2-12-2021 om 11:45 schreef Mehmet Erol Sanliturk:


 Can I convert that program to JavaScript by using Lazarus ?


Afaik the pas2js transpiler compiles to an low level javascript that 
might not be suitable for maintenance after. It is not intended for 
pascal to javascript source conversion, but to compile Pascal codebases 
to run on javascript only systems.


So this will probably all be manual converts.


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Re: [Lazarus] up with Lazarus !

[Mehmet Erol Sanliturk via lazarus]

Since the subject is
"up with Lazarus"
can I ask one question as follows :

I have  a Pascal program having  ( around ) 12000 procedures and a small
number of
units and it is compiled with Lazarus / Free Pascal only in Unix-like
operating systems
such as Linux and FreeBSD .

(1)
After converting all of the variant records to  non_variant records
( by removing "case " related part of its tag line , by keeping the tag
variable ) ,

(2) There is no any "Initialization" , "Finalization" parts in units

(3) Nearly all of the constants , types , and records are marked with their
unit names
  such as   Unit_A . constant_name , etc. .


Can I convert that program to JavaScript by using Lazarus ?

Later on I want to convert this program to C to link C sources from other
permissively
licensed repositories directly and then use only C ( not Pascal any more )
, and use JavaScript
programs derived from that program where they are more suitable .



Your suggestions are appreciated very much .


With my best regards ,


Mehmet Erol Sanliturk






On Thu, Dec 2, 2021 at 12:57 PM Marco van de Voort via lazarus <
lazarus@lists.lazarus-ide.org> wrote:

>
> Op 2-12-2021 om 10:19 schreef Marco van de Voort via lazarus:
> >
> > Op 1-12-2021 om 23:04 schreef Sergey Bodrov via lazarus:
> >> Pascal walks into a bar
> >> There are 100 000 Pascals in the bar!
> >>
> >
> ... and then he left because there was no Atmosphere.
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Re: [Lazarus] up with Lazarus !

[Marco van de Voort via lazarus]

Op 2-12-2021 om 10:19 schreef Marco van de Voort via lazarus:


Op 1-12-2021 om 23:04 schreef Sergey Bodrov via lazarus:

Pascal walks into a bar
There are 100 000 Pascals in the bar!




... and then he left because there was no Atmosphere.
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Re: [Lazarus] up with Lazarus !

[Darius Blaszyk via lazarus]

That should be 33 in total!

On Thu, Dec 2, 2021 at 10:20 AM Marco van de Voort via lazarus <
lazarus@lists.lazarus-ide.org> wrote:

>
> Op 1-12-2021 om 23:04 schreef Sergey Bodrov via lazarus:
> > Pascal walks into a bar
> > There are 100 000 Pascals in the bar!
> >
> Nope, 11, 10 in the bar, and the one that just walked in.
>
>
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Re: [Lazarus] up with Lazarus !

[Marco van de Voort via lazarus]

Op 1-12-2021 om 23:04 schreef Sergey Bodrov via lazarus:

Pascal walks into a bar
There are 100 000 Pascals in the bar!


Nope, 11, 10 in the bar, and the one that just walked in.


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