[tw5] Drawing in image tiddlers - Eraser? Undo?
I just started playing with image tiddlers to draw quick diagrams as opposed to linking/displaying images inline. Is there any eraser option that I am failing to see? I also was hoping I could use undo (ctrl-z), but it doesn't work as I hoped. Please let me know if there's something I have overlooked or if you know of any good plugins that might give me what I want. I'm not expecting photoshop, I was excited that this function was here at all and I just noticed it! Thanks! -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to tiddlywiki+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/4b1de090-1c1f-41b9-a09a-59583189bb2bn%40googlegroups.com.
[tw5] How does TW differentiate numbers from text? Also Mathematics operator syntax.
Pretty basic question, I believe... I have been trying to get some plugin
macros to work, and the output is NaN, which I am guessing means "not a
number".
The plugin macros work if a number is put in the macro call, but when I try
to transclude a field it gives NaN. The macro is supposed to output the raw
score and a bonus based on the raw score. It's a Dungeons & Dragons thing
if you aren't familiar.
<> Gives correct output: 16 (+3)
<> Gives: NaN <#NaN> (−NaN
<#NaN>)
{{!!dnd.creature.str}}Correctly transcludes the field value:16
Is there the something line an INT function that must be used to say this
is an integer and not a string?
Also, I was simply pasting in some of the mathematics operator examples and
they do not evaluate the expression. There is obviously something else I am
missing:
[[23]add[19]]gives 23]add[19 <#23%5Dadd%5B19>
Thanks!
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[tw5] Re: Hello TW world and calculation question
Thanks to both of you! I'll give these a try.
On Tuesday, February 23, 2021 at 12:22:29 PM UTC-6 Ste wrote:
> You might also try this plugin for a more excel like expeiance.
> https://chronicles.wiki/TiddlyWikiFormula/
>
> On Tuesday, 23 February 2021 at 16:39:29 UTC Eric Shulman wrote:
>
>> On Tuesday, February 23, 2021 at 8:21:46 AM UTC-8 brad.d...@gmail.com
>> wrote:
>>
>>> ...how to do calculations and formulas in TW. At the moment I would like
>>> to do the following:
>>> =INT(({{!!myfield}}-10)/2)
>>>
>>
>> Calculations are done using the "filter" syntax. There are several ways
>> to do this.
>>
>> * direct rendering using "filtered transclusion"
>> {{{ [{!!myfield}subtract[10]divide[2]trunc[]] }}}
>>
>> * using the $set widget with "filter" parameter
>> <$set name="result" filter="[{!!myfield}subtract[10]divide[2]trunc[]]">
>>
>> * using the $vars widget with filtered transclusion as a parameter
>> <$vars result={{{ [{!!myfield}subtract[10]divide[2]trunc[]] }}}>
>>
>> Notes:
>> * within the filter syntax, field references use *single* curly braces.
>> * there isn't any filter syntax for using parentheses in calculations, so
>> the order of operations is very important
>> * sometimes this means using several filters to calculate intermediate
>> results and then combining them.
>>
>> For example, to calculate something like this:
>> INT(({!!myfield} / 2) - ({!!myfield} - 5))
>>
>> You could write:
>> <$vars part1={{{ [{!!myfield}divide[2]] }}} part2={{{
>> [{!!myfield}subtract[5]] }}}>
>> <$vars result={{{ [subtracttrunc[]] }}}
>>
>> enjoy,
>> -e
>>
>
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[tw5] Hello TW world and calculation question
Hi everyone!
I just discovered TiddlyWiki last week via a reddit post on using it to
organize D campaigns and was immediately struck by thousands of ideas all
at once for using it.
I don't really have a coding background, though I have cobbled a few macros
together in excel. Since I have been very excel centric, I was wondering
how to do calculations and formulas in TW. At the moment I would like to do
the following:
=INT(({{!!myfield}}-10)/2)
I don't assume there is an INT() function, so I'm kind of stuck.
Thanks in advance!
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