String.format
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Hi,
I would like to execute the macro function: s = String.format("%04d", 13); print(s); but I get the error message "java.util.IllegalFormatConversionException: d != java.lang.Double in line 1:" "s = String . format ( "%04d" , 13 <)> ;" If the number is float and not integer It's working: s = String.format("%04f", 13.0); print(s); Could this be a bug? -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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I suspect that all numbers are doubles in macros.
-- Kenneth Sloan [hidden email] Vision is the art of seeing what is invisible to others. -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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In reply to this post by Peter Haub
> On Nov 18, 2020, at 10:53 AM, Peter Haub <[hidden email]> wrote:
> > Hi, > I would like to execute the macro function: > > s = String.format("%04d", 13); > print(s); > > but I get the error message Change the ‘d’ (integer) to ‘f’ (float) and it will work. All numbers in the ImageJ macro language are stored as doubles. -wayne > "java.util.IllegalFormatConversionException: d != java.lang.Double in > line 1:" > "s = String . format ( "%04d" , 13 <)> ;" > > If the number is float and not integer It's working: > > s = String.format("%04f", 13.0); > print(s); > > Could this be a bug? > > -- > ImageJ mailing list: http://imagej.nih.gov/ij/list.html -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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In reply to this post by Kenneth Sloan-2
Thanks Kenneth,
but this issue could be solved by changing the current implementation in Functions.java doString() from else if (name.equals("format")) { try {return String.format(getFirstString(), getLastArg());} catch (Exception e) {interp.error(""+e);} return null; } ... to ... else if (name.equals("format")) { String formatStr = getFirstString(); double num = getLastArg(); try { if (formatStr.contains("d")) return String.format(formatStr, (int) num); else return String.format(formatStr, num);} catch (Exception e) {interp.error(""+e);} return null; } ... Here is a use case https://forum.image.sc/t/fiji-macro-issue-no-window-with-title-found/45525/3 Peter On 18.11.2020 17:04, Kenneth Sloan wrote: > I suspect that all numbers are doubles in macros. > -- > Kenneth Sloan > [hidden email] > Vision is the art of seeing what is invisible to others. > > -- > ImageJ mailing list: http://imagej.nih.gov/ij/list.html -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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> On Nov 18, 2020, at 11:49 AM, Peter Haub <[hidden email]> wrote:
> > Here is a use case > https://forum.image.sc/t/fiji-macro-issue-no-window-with-title-found/45525/3 The easy way to add leading zeros to an integer is to use the IJ.pad(n,digits) function. It is not obvious how to do it using String.format(). -wayne > On 18.11.2020 17:04, Kenneth Sloan wrote: >> I suspect that all numbers are doubles in macros. >> -- >> Kenneth Sloan >> [hidden email] >> Vision is the art of seeing what is invisible to others. >> >> -- >> ImageJ mailing list: http://imagej.nih.gov/ij/list.html > > > -- > ImageJ mailing list: http://imagej.nih.gov/ij/list.html -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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Thank you Wayne
for this valuable hint. Perfect solution. Peter On 18.11.2020 18:24, Wayne Rasband wrote: >> On Nov 18, 2020, at 11:49 AM, Peter Haub <[hidden email]> wrote: >> >> Here is a use case >> https://forum.image.sc/t/fiji-macro-issue-no-window-with-title-found/45525/3 > The easy way to add leading zeros to an integer is to use the IJ.pad(n,digits) function. It is not obvious how to do it using String.format(). > > -wayne > >> On 18.11.2020 17:04, Kenneth Sloan wrote: >>> I suspect that all numbers are doubles in macros. >>> -- >>> Kenneth Sloan >>> [hidden email] >>> Vision is the art of seeing what is invisible to others. >>> >>> -- >>> ImageJ mailing list: http://imagej.nih.gov/ij/list.html >> >> -- >> ImageJ mailing list: http://imagej.nih.gov/ij/list.html > -- > ImageJ mailing list: http://imagej.nih.gov/ij/list.html -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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In reply to this post by Peter Haub
Hi Peter,
sorry, one can't replace all 'd' characters in the format string with 'f'. The format string can also contain text, e.g. String.format("did you know: pi=%f", 3.14159); prints did you know: pi=3.141590 The 'd's of "did" would be also replaced. One might replace all "%d", but then one should also care about "%+9f" (uses a minimum of 9 characters and always prints the sign) etc. It might be possible to find a regular expression for replacing all the variants (keeping the flags and width, and resulting in "%<flags><width>f.0"), but it is not so easy. Michael ________________________________________________________________ On 18.11.20 17:49, Peter Haub wrote: > Thanks Kenneth, > > but this issue could be solved by changing the current implementation in > Functions.java doString() > > from > else if (name.equals("format")) { > try {return String.format(getFirstString(), getLastArg());} > catch (Exception e) {interp.error(""+e);} > return null; > } > ... > > to > ... > else if (name.equals("format")) { > String formatStr = getFirstString(); > double num = getLastArg(); > try { > if (formatStr.contains("d")) > return String.format(formatStr, (int) num); > else > return String.format(formatStr, num);} > catch (Exception e) {interp.error(""+e);} > return null; > } > ... > > Here is a use case > https://forum.image.sc/t/fiji-macro-issue-no-window-with-title-found/45525/3 > > > Peter > > > On 18.11.2020 17:04, Kenneth Sloan wrote: >> I suspect that all numbers are doubles in macros. >> -- >> Kenneth Sloan >> [hidden email] >> Vision is the art of seeing what is invisible to others. >> >> -- >> ImageJ mailing list: http://imagej.nih.gov/ij/list.html > > > -- > ImageJ mailing list: http://imagej.nih.gov/ij/list.html -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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In reply to this post by Peter Haub
Peter,
If what you want to do is to zero pad an integer, you can do this by formatting it as a float specifying zero decimals: s = String.format("%04.0f", 13); print(s); prints 0013 str = String.format("%09.5f", PI); print(str); prints 003.14159 The last syntax is useful as it allows for more complex number formatting. You can for example pad with spaces instead: str = String.format("% 9.5f", PI); Apparently, String.format does not work as expected with numbers if you omit the .n decimal specification in the format string. The IJ.pad() function is easier to use, but only works with integers. Stein -----Original Message----- Sent: 18. november 2020 16:54 Subject: String.format Hi, I would like to execute the macro function: s = String.format("%04d", 13); print(s); but I get the error message "java.util.IllegalFormatConversionException: d != java.lang.Double in line 1:" "s = String . format ( "%04d" , 13 <)> ;" If the number is float and not integer It's working: s = String.format("%04f", 13.0); print(s); Could this be a bug? -- ImageJ mailing list: https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fimagej.nih.gov%2Fij%2Flist.html&data=04%7C01%7Cstein.rorvik%40sintef.no%7Ce5f8a69be3104cb30bda08d88bda59ba%7Ce1f00f39604145b0b309e0210d8b32af%7C1%7C1%7C637413117218634903%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Zn5pKbxK4MklXs3rgwo1Xjs4RtWJ9OBnnD7iezL%2BIZQ%3D&reserved=0 -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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In case it matters, the following macro function (that works similarly
in Java) does it in a handcrafted fashion: /////// requires("1.53f"); string = preZeros( d2s( PI, 5 ), 3 ); print( string ); function preZeros( inStr, n ){ if ( inStr.contains( "." ) ) { str = split( inStr, "[.]" ); inStr = str[0]; dec = "." + str[1]; } while ( inStr.length() < n ) inStr = "0" + inStr; return inStr + dec; } ////// Have fun Herbie :::::::::::::::::::::::::::::::::::::::::: Am 21.11.20 um 13:33 schrieb Stein Rørvik: > Peter, > > If what you want to do is to zero pad an integer, > you can do this by formatting it as a float specifying zero decimals: > > s = String.format("%04.0f", 13); > print(s); > > prints 0013 > > str = String.format("%09.5f", PI); > print(str); > > prints 003.14159 > > The last syntax is useful as it allows for more complex number formatting. > You can for example pad with spaces instead: > str = String.format("% 9.5f", PI); > > Apparently, String.format does not work as expected with numbers if you omit the .n decimal specification in the format string. > > The IJ.pad() function is easier to use, but only works with integers. > > Stein > > -----Original Message----- > Sent: 18. november 2020 16:54 > Subject: String.format > > Hi, > I would like to execute the macro function: > > s = String.format("%04d", 13); > print(s); > > but I get the error message > "java.util.IllegalFormatConversionException: d != java.lang.Double in line 1:" > "s = String . format ( "%04d" , 13 <)> ;" > > If the number is float and not integer It's working: > > s = String.format("%04f", 13.0); > print(s); > > Could this be a bug? > > -- > ImageJ mailing list: https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fimagej.nih.gov%2Fij%2Flist.html&data=04%7C01%7Cstein.rorvik%40sintef.no%7Ce5f8a69be3104cb30bda08d88bda59ba%7Ce1f00f39604145b0b309e0210d8b32af%7C1%7C1%7C637413117218634903%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Zn5pKbxK4MklXs3rgwo1Xjs4RtWJ9OBnnD7iezL%2BIZQ%3D&reserved=0 > > -- > ImageJ mailing list: http://imagej.nih.gov/ij/list.html > -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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Dear Stein,
Dear Herbie, Thanks for your helpful and useful suggestions +++ :-) Peter ps: Herbie, you are absolutely right ... Commands like run("Find Maxima...", "noise=&noise output=&output light"); are absolutely correct (according to https://imagej.nih.gov/ij/developer/macro/macros.html) On 21.11.2020 14:09, Herbie wrote: > In case it matters, the following macro function (that works similarly > in Java) does it in a handcrafted fashion: > > /////// > requires("1.53f"); > string = preZeros( d2s( PI, 5 ), 3 ); > print( string ); > > function preZeros( inStr, n ){ > if ( inStr.contains( "." ) ) { > str = split( inStr, "[.]" ); > inStr = str[0]; > dec = "." + str[1]; > } > while ( inStr.length() < n ) inStr = "0" + inStr; > return inStr + dec; > } > ////// > > Have fun > > Herbie > > :::::::::::::::::::::::::::::::::::::::::: > Am 21.11.20 um 13:33 schrieb Stein Rørvik: >> Peter, >> >> If what you want to do is to zero pad an integer, >> you can do this by formatting it as a float specifying zero decimals: >> >> s = String.format("%04.0f", 13); >> print(s); >> >> prints 0013 >> >> str = String.format("%09.5f", PI); >> print(str); >> >> prints 003.14159 >> >> The last syntax is useful as it allows for more complex number >> formatting. >> You can for example pad with spaces instead: >> str = String.format("% 9.5f", PI); >> >> Apparently, String.format does not work as expected with numbers if >> you omit the .n decimal specification in the format string. >> >> The IJ.pad() function is easier to use, but only works with integers. >> >> Stein >> >> -----Original Message----- >> Sent: 18. november 2020 16:54 >> Subject: String.format >> >> Hi, >> I would like to execute the macro function: >> >> s = String.format("%04d", 13); >> print(s); >> >> but I get the error message >> "java.util.IllegalFormatConversionException: d != java.lang.Double in >> line 1:" >> "s = String . format ( "%04d" , 13 <)> ;" >> >> If the number is float and not integer It's working: >> >> s = String.format("%04f", 13.0); >> print(s); >> >> Could this be a bug? >> >> -- >> ImageJ mailing list: >> https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fimagej.nih.gov%2Fij%2Flist.html&data=04%7C01%7Cstein.rorvik%40sintef.no%7Ce5f8a69be3104cb30bda08d88bda59ba%7Ce1f00f39604145b0b309e0210d8b32af%7C1%7C1%7C637413117218634903%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Zn5pKbxK4MklXs3rgwo1Xjs4RtWJ9OBnnD7iezL%2BIZQ%3D&reserved=0 >> >> -- >> ImageJ mailing list: http://imagej.nih.gov/ij/list.html >> > > -- > ImageJ mailing list: http://imagej.nih.gov/ij/list.html -- ImageJ mailing list: http://imagej.nih.gov/ij/list.html |
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