Topic: Character codes for SHX text font

[csgoh]

What are the character codes for the superscript text for eg m²if one is using a shx font file?

[Peter2]

I suppose that it depends on the SDHX you are using - some SHX have it (somewhere ..), some have it not.

[roy_043]

See here for Unicode character:
https://www.theswamp.org/index.php?topic=51678.0

[csgoh]

Noted with thanks.
And is there a way to decompile shx back to shp format?

[Peter2]

"shx2shp"

https://www.google.ch/search?q=shx2shp&ie=utf-8&oe=utf-8&client=firefox-b&gfe_rd=cr&ei=ugmFV7zuM-uX8Qeo05XYDA#cns=1&gfe_rd=cr

[csgoh]

I manage to decompile my shx to shp using shxconvert trial version. In the shx, I created a  %%200 to represent m².
My question is why wcmatch returns nil in one text whereas returns T in another text.
The 200 m² is entered via command "text" using this text "200 %%200" whereas the 100 m² is entered via lisp.
Both texts are using wingoh.shx font. Why the difference in the contents even though font display is the same?

Code: [Select]

(defun c:tx1 ( / txt b ma?)
 (vl-load-com)
 (setq txt "100 %%200")
 (setq pt? (getpoint "\nSelect point to place text "))
 (command "text" pt?  5 "0" txt)
 (princ)
 (setq b (car (entsel "\Select text ")))
 (setq b (vla-get-textstring (vlax-ename->vla-object b)))
 (setq ma? (wcmatch b "*%%200*"))
 (print ma?)
)

(defun c:tx2 ( / b ma?)
 (setq b (car (entsel "\Select text ")))
 (setq b (vla-get-textstring (vlax-ename->vla-object b)))
 (setq ma? (wcmatch b "*%%200*"))
 (print (strcat "wcmatch " b ))(print ma?)
)


[hmspe]

When I look ay the entities in your drawing with (entget (car (entsel))) the string value for the 200 entry is (1 . "200 È") while the value for the 100 entry is (1 . "100 %%200").  È has a character code of Alt+200.  When I create new text from the command line by typing the text    100 %%200   I get a string value of (1 . "100 %%200").  Are you sure you entered the "200" string as    200 %%200    ?

[Peter2]

...In the shx, I created a  %%200 to represent m²....

I strongly recommend to use the codes which are defined (standardized). ² has code "Alt+0178" - you can check it with the Windows software "Character Map" or with http://www.unicode.org/standard/where/.

If you mess up the codes you will have bad troubles if you (or some else)
- change the textstyle to another font or
- want to enter ² with standard keys or
- want to search for 0178 but you used 0200 or
- ....

Peter

[hermanm]

An alternative is to use MTEXT.
This yields a superscript:
\A1;E = mc{\H0.75x;\S2;}
This produces a subscript:
\A1;b{\H0.75x;\S^f;} = 8"

The fraction following H governs the relative height of the sub or super script.
\A1; centers the 'scripts on the main text.

The advantage of using MTEXT is that it is typeface independent, and therefore requires no special shx files.

[csgoh]

Are you sure you entered the "200" string as    200 %%200    ?

Yes. Im using acad13.
Thanks Peter for the info. on characters code