<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
span.EmailStyle20
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;
mso-ligatures:none;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>I have no idea what you are talking about because you have not created a test case that explains what you want. Sorry.<o:p></o:p></p><div><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>all the best, Don<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>-- <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>Don Brutzman Naval Postgraduate School, Code USW/Br brutzman@nps.edu<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Courier New"'>X3D graphics, virtual worlds, navy robotics https://faculty.nps.edu/brutzman<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> John Carlson <yottzumm@gmail.com> <br><b>Sent:</b> Thursday, October 19, 2023 9:16 AM<br><b>To:</b> GPU Group <gpugroup@gmail.com><br><b>Cc:</b> Brutzman, Donald (Don) (CIV) <brutzman@nps.edu>; Peitso, Loren (CIV) <lepeitso@nps.edu>; X3D Graphics public mailing list <x3d-public@web3d.org><br><b>Subject:</b> Re: Thoughts for x3d.py str() calls<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><div><p class=MsoNormal>There are 239 instances of "str" in X3duomToX3dPythonPackage.xslt. 208 of them are not related to isinstance<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Please advise before I go sailing in modifying them to another function. This looks like a major modification.<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Thu, Oct 19, 2023 at 11:09 AM John Carlson <<a href="mailto:yottzumm@gmail.com">yottzumm@gmail.com</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p class=MsoNormal>Redeclaring the float class doesn't seem to work, isinstance fails <o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Monkey patching doesn't work:<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal>def custom_float_str(value):<o:p></o:p></p></div><div><p class=MsoNormal> return f"{value:.5g}"<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal># Monkey-patch the float class<o:p></o:p></p></div><div><p class=MsoNormal>float.__str__ = custom_float_str<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Overriding the str function doesn't work, because that overrides the str type as well.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Adding methods to SFFloat doesn't seem to work.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I'm pretty much bamboozled, and the next step is to replace many str() calls in x3d.py with my own function, which was my original idea.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Another idea is to convert all floating point input to x3d.py to strings.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Hmm! I don't like python much, as a beginner.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Thu, Oct 19, 2023 at 9:56 AM John Carlson <<a href="mailto:yottzumm@gmail.com" target="_blank">yottzumm@gmail.com</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><p class=MsoNormal>I’m guessing I can override float.__str__() and maybe the list.__str__() methods. Do I do that in x3d.py or my code?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I’m on unfamiliar ground and will have to do some testing unless someone has a definitive response.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I hope this works. I will run through the smoke tests provided.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I will probably modify the Blender X3DV exporter first, and if that doesn’t work, proceed to modify x3d.py. I don’t think it’s a good idea to modify x3d.py itself.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>So far, I haven’t seen anyone replacing the str() function.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>John <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Mon, Oct 16, 2023 at 11:10 AM GPU Group <<a href="mailto:gpugroup@gmail.com" target="_blank">gpugroup@gmail.com</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><div><p class=MsoNormal>It seems possible to override functions in python, if there are just a few to override. <o:p></o:p></p><div><p class=MsoNormal>And one suggestion for x3d.py imperfections is to apply fixes at runtime in some initialization function.<o:p></o:p></p></div><div><p class=MsoNormal>- that assumes/requires just a few target functions, not 480 functions that need to be repaired<o:p></o:p></p></div><div><p class=MsoNormal>- so for some fixes it may be helpful to change the upstream x3d.py to call a function that can be easily replaced.<o:p></o:p></p></div><div><p class=MsoNormal>-Doug<o:p></o:p></p></div><div><p class=MsoNormal>Example:<o:p></o:p></p></div><div><p class=MsoNormal>file myclass.py <o:p></o:p></p><div><div><p class=MsoNormal>class Wonky:<o:p></o:p></p></div><div><p class=MsoNormal> def __init__(self):<o:p></o:p></p></div><div><p class=MsoNormal> self.color = "Red"<o:p></o:p></p></div><div><p class=MsoNormal> def func1(self, color :str) -> bool:<o:p></o:p></p></div><div><p class=MsoNormal> if color == self.color:<o:p></o:p></p></div><div><p class=MsoNormal> return True<o:p></o:p></p></div><div><p class=MsoNormal> return False<o:p></o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>file override.py<o:p></o:p></p></div><div><div><p class=MsoNormal>from myclass import *<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>mc = Wonky()<o:p></o:p></p></div><div><p class=MsoNormal>print("match with Blue? "+str(mc.func1("Blue")))<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>def func2(self, color: str) -> bool:<o:p></o:p></p></div><div><p class=MsoNormal> if self.color != color:<o:p></o:p></p></div><div><p class=MsoNormal> return True<o:p></o:p></p></div><div><p class=MsoNormal> return False<o:p></o:p></p></div><div><p class=MsoNormal>Wonky.func1 = func2 # <<<<<<<<<<<< OVERRIDE<o:p></o:p></p></div><div><p class=MsoNormal>print("don't match with Blue? "+str(mc.func1("Blue")))<o:p></o:p></p></div></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>output:<o:p></o:p></p></div><div><div><p class=MsoNormal>match with Blue? False<o:p></o:p></p></div><div><p class=MsoNormal>don't match with Blue? True<o:p></o:p></p></div></div><div><p class=MsoNormal>-Doug<o:p></o:p></p></div></div></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Mon, Oct 16, 2023 at 9:55 AM John Carlson <<a href="mailto:yottzumm@gmail.com" target="_blank">yottzumm@gmail.com</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><p class=MsoNormal>Instead of calling str() to print out a value, call a function that does precision floating point formatting on floats according to a user’s wishes. If the value is a list, call the function recursively with a list comprehension, otherwise, call str. <o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I think this is doable by mere humans.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thanks,<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>John<o:p></o:p></p></div></blockquote></div></blockquote></div></div></blockquote></div></blockquote></div></div></div></body></html>