AFDesign

August 10, 2023

This would be great, if the file can be a .py file written in standard Python language (without splitting code in lines).

Thanks!

August 9, 2023

Thank you so much Raymond! It would be great if the "PythonBeginContext" would allow to start writing Python code as "multi-line text", or even including a .py file directly as for .px files using "{$INCLUDE filename}".

Kind regards

August 8, 2023

Hi everybody,

I'm trying to use Python code inside Vectorscript using PythonExecute procedure. It works, but when I need to use indentation I receive this error:

Quote

IndentationError: expected an indented block

I tried with different space counts, using tab, and with unicode \u0009 (tab) but nothing works. Indentation characters seems to be ignored. This is the sample code:

procedure test_pythoncontext;

VAR
	check:BOOLEAN;

BEGIN

	check:=true;

	PythonBeginContext;
	PythonExecute('import vs');
	PythonExecute('check_py = vs.GetVSVar("check")');

	{INDENTATION CODE THAT GENERATE AN ERROR}
	PythonExecute('if check_py == true: ');
	PythonExecute('    check_py = false');

	PythonEndContext;
	message(check);

END;

run(test_pythoncontext);

Anybody can tell me if indentation is admitted in "PythonExecute"?

Thanks!

October 28, 2020

Yes, as I said previously, if you simply "replace" a string there is no problem, SetVSVar works correctly, and the white space isn't a problem if I use Dynarray of Char.

The problem is that after encrypting the plugin, SetVSVar returns an empty value, as you can test in my last example (without using any other python code).

October 28, 2020

I discovered why my plugin freeze: after encrypting the plugin and rebooting vectorworks, SetVSVar returns an empty variable.

You can see the problem by creating a new plugin with this simple code:

procedure testsetvsvar;

VAR
	result:STRING;

begin
	PythonBeginContext;
	PythonExecute('import vs');
	PythonExecute('vs.SetVSVar("result","PYTHON TEXT")');
	PythonEndContext;

	alertinform(concat('text from python : ',result),'',false);
end;

run(testsetvsvar);

Without encryption, the plugin works correctly.

If you encrypt the plugin and reboot Vectorworks, text from python result is empty.

October 28, 2020

Sure! Same code, but string is directly assigned in python:

PROCEDURE Example;
VAR
  strName : String;
BEGIN
  PythonBeginContext;
  PythonExecute('import vs');
  PythonExecute('import hashlib');
  PythonExecute('thestring="test"');
  PythonExecute('myhash=hashlib.md5(thestring.encode())');
  PythonExecute('vs.SetVSVar("strName", myhash.hexdigest())');
  PythonEndContext;
  
  AlrtDialog( Concat( '*', strName, '*' ) );
END;
RUN(Example);

SetVSVar return the white space, after encoding the hash.

I think I will not use this phyton code because it works only if the plugin is not encrypted. After encryption, the plugin freeze Vectorworks. If I remove the code and encrypt the plugin, it works. Maybe plugin encryption cause some problems to python code, I will try to understand why.

October 27, 2020

It's true, if you simply "replace" a string there is no problem. But if you process the variable as in my example, the result has a white space, that disappear if you use "Dynarray of Char" instead of "string".

Your example with hash process and String variable (white space in the result):

PROCEDURE Example;
VAR
  strName : String;
BEGIN
  strName := '';
  
  PythonBeginContext;
  PythonExecute('import vs');
  PythonExecute('import hashlib');
  PythonExecute('thestring=vs.GetVSVar(''strName'')');
  PythonExecute('myhash=hashlib.md5(thestring.encode())');
  PythonExecute('vs.SetVSVar("strName", myhash.hexdigest())');
  PythonEndContext;
  
  AlrtDialog( Concat( '*', strName, '*' ) );
END;
RUN(Example);

Same example using Dynarray variable (correct result):

PROCEDURE Example;
VAR
  strName : Dynarray of Char;
BEGIN
  strName := '';
  
  PythonBeginContext;
  PythonExecute('import vs');
  PythonExecute('import hashlib');
  PythonExecute('thestring=vs.GetVSVar(''strName'')');
  PythonExecute('myhash=hashlib.md5(thestring.encode())');
  PythonExecute('vs.SetVSVar("strName", myhash.hexdigest())');
  PythonEndContext;
  
  AlrtDialog( Concat( '*', strName, '*' ) );
END;
RUN(Example);

Maybe is something linked to string encoding in python.

October 27, 2020

Yes, if you use SetVSVar with a STRING variable, the result has a white space at the beginning.

October 26, 2020

Thank you Pat, I understood the problem: I passed the result to "var myMD5string:STRING;" variable, using STRING a white space is added. If I change to "var myMD5string:DYNARRAY OF CHAR" it works correctly.

Thank you for your patience

October 23, 2020

Using "mystring:DYNARRAY[] OF CHAR;" the hash is generated correctly, but now the result start with a white space. There is the same kind of bug to report..

Thank you

procedure MD5test;
var myMD5string:STRING;
    mystring:DYNARRAY[] OF CHAR;

begin
	mystring:='test';

	PythonBeginContext;
		PythonExecute('import vs');
		PythonExecute('import hashlib');
		PythonExecute('thestring=vs.GetVSVar(''mystring'')');
		PythonExecute('vs.AlrtDialog("Imported in python <"+thestring+">")');
		PythonExecute('myhash=hashlib.md5(thestring.encode())');
		PythonExecute('vs.SetVSVar("myMD5string",myhash.hexdigest())');
	PythonEndContext;

	alertinform(concat('<',myMD5string,'>'),'',false); {result start with a white space}
	
end;
run(MD5test);

October 23, 2020

Thank you, Pat!

October 22, 2020

Thank you Patrick,

my fear was only me seeing this error. I will use the workaround.

kind regards

Andrea

October 22, 2020

Hi,

this is the first time I try to use Python code inside Vectorscript, and I can't understand why by "importing" a variable in Python (using GetVSVar) the first character is automatically deleted.

I'm trying to retrieve an MD5 hash from a string:

procedure MD5test;
var mystring,myMD5string:STRING;

begin
	{importing the correct string}
	mystring:='test';

	PythonBeginContext;
		PythonExecute('import vs');
		PythonExecute('import hashlib');
		PythonExecute('thestring=vs.GetVSVar(''mystring'')');
		PythonExecute('vs.AlrtDialog("Imported in python <"+thestring+">")'); {string lose the first character!!}
		PythonExecute('myhash=hashlib.md5(thestring.encode())');
		PythonExecute('vs.SetVSVar("myMD5string",myhash.hexdigest())');
	PythonEndContext;

	alertinform(concat('input string: <',mystring,'> wrong result (result for "est"): ',myMD5string),'',false);
	
	{importing the string with a starting space}
	mystring:=' test';

	PythonBeginContext;
		PythonExecute('import vs');
		PythonExecute('import hashlib');
		PythonExecute('thestring=vs.GetVSVar(''mystring'')');
		PythonExecute('vs.AlrtDialog("Imported in python <"+thestring+">")');
		PythonExecute('myhash=hashlib.md5(thestring.encode())');
		PythonExecute('vs.SetVSVar("myMD5string",myhash.hexdigest())');
	PythonEndContext;

	alertinform(concat('input string with starting space: <',mystring,'> correct result: ',myMD5string),'',false);

	{using the string directly}
	PythonBeginContext;
		PythonExecute('import vs');
		PythonExecute('import hashlib');
		PythonExecute('myhash=hashlib.md5(b"test")');
		PythonExecute('vs.SetVSVar("myMD5string",myhash.hexdigest())');
	PythonEndContext;

	alertinform(concat('correct result using "test" string directly in python: ',myMD5string),'',false);

	
end;
run(MD5test);

I tried with Vectorworks 2020 and 2021, same problem. Maybe I'm doing something wrong?

Thanks!

May 7, 2019

GetPlanarRef doesn't work too. I created a new 2d path plugin and GetObjectVariableBoolean 650 and 651 works correctly, Pat!

I will check what's wrong in my code.

EDIT:

Now I understood. Variable 650/651 read if an object is 2D or 3D: a 2D object in a custom plane is detected as 3D. For this reason the new plugin I created works, because I only created a 2D polyline to test. But my plugin use the 2D path to create a 3D object, so I receive the same value because my object is a 3D object, in both screen or plan mode.

The only way to solve my problem is being able to read the custom plane tilt, but I didn't find a command for this.

(I found GetWorkingPlaneN but it isn't relative to an object)

Thank you all!

May 6, 2019

Sorry I'm using a 2D path plugin so I can't post a small sample. I will create a new 2d path plugin and I will try your advice on it! I will let you know if it works tomorrow.

Thank you!

May 6, 2019

Thank you Pat, I tried but I always receive the same result, using 650 and 651. Maybe it is possible to detect if the plane is horizontal or tilted?

May 6, 2019

Hi,

I'm working with a 2D path object plugin, and I'd like to detect if the path has been created on a screen plane or layer plane.

I tried this:

GetObjectVariableBoolean(handle, 1160);

using both plugin and path handles, but I always get the same result drawing in screen plane or layer plane.

Any advice is appreciated, thanks!

Andrea

January 8, 2016

A new version of Foliage plugin is available: video

Foliage 2.0 allows you to create a range of fairly complex hedges, espalier, topiary, mass and vertical plantings or areas with any symbol following a site model. More information on www.andreafacchinello.it.

November 24, 2015

Hi,

it would be very nice if Vectorscript could take advantage of multi-core cpu in repetition statements, for example:

PROCEDURE multicore;

var
hascanceled:Boolean;
total,counter:integer;	

BEGIN

total:=4000;
counter:=0;
hascanceled:=false;

ProgressDlgOpen('Start multicore test...', true );
ProgressDlgSetMeter('Please wait...' );
ProgressDlgStart(100.0,total);

while (counter < total) do begin

	{...cpu-intensive operations}

	counter:=counter+1;
	progressdlgyield(1);
	hasCanceled := ProgressDlgHasCancel;
	if hasCanceled then counter:=total;

	enablemulticore; {doesn't wait end of operation, start the next with another core}

end; {while}

progressdlgend;
progressdlgclose;

end;

Run(multicore);

November 9, 2015

Hi,

I have the same problem reported in this post using "progress dialog" function on a plugin I wrote. You can quickly reproduce the problem in this way:

1) create a new script and paste "example 1" from here

2) run the script: if you click cancel button it works correctly; if you push the ESC button all stops but the dialog remains opened and, even if you close its window, vectorworks menus are locked and grayed out (impossible to quit)

Tested with Vectorworks 2016 SP1 on OSX 10.10.5

Any workaround to solve this adding some code to the example??

Thanks

November 4, 2015

Hi,

I have the same problem using "progress dialog" on a plugin I wrote. You can quickly reproduce the problem in this way:

1) create a new script and paste "example 1" from here http://developer.vectorworks.net/index.php/VS:Progress_Dialog

2) if you click cancel button it works correctly; if you push the ESC button all stops but the dialog remains opened and, even if you close its window, all is locked and grayed out.

Tested with Vectorworks 2016 SP1 on OSX 10.10.5

Any workaround to solve this adding some code to the example??

Thanks

June 28, 2015

Thank you, I will try to get more info about this. But if I don't use undooff I get only one regen, not two.

June 26, 2015

I finally found a workaround, if someone is interested:

1) SetMaximumUndoEvents(0);

2) execute script

3) restore maximum undo events

end of monologue

June 25, 2015

I tried everything, it's probably a bug. if you try this simple code in a linear object plugin, when it regenerates with undooff you will receive the alert message twice, if you delete undooff it will works correctly (only one alert).

Any workaround?

Thanks

PROCEDURE Example1;

BEGIN

undooff;

ovaln(0,0,0,1,1m,1m); {draw a circle}

alertinform('Plugin regenerated!','',false);

END;

Run(Example1);

May 28, 2015

Hi,

does it exist additional documentation for the "UndoOFF" procedure more than

http://developer.vectorworks.net/index.php/VS:UndoOff ?

My plugin take some time to regenerate so I use "Progress Dialog" to have visual feedback. If I put UndoOFF (after Begin) my plugin regenerate 2 times: when the progressbar end, it restart one more time.

Without UndoOFF it works correctly, but I need it to reduce memory use.

Thanks for your help!

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