Canvas Limited to 32767

[Paul Dupuis]

You would think with 32K px at 72px/inch being like 450 inches that the 
32K limit would not be an issue, but I have run into it as well

I have written a custom graph (like a bar graph for example sake) that 
is generally fine with most customer data. However, on one customer data 
set it started blowing up. It turns out that one of the bars was "huge" 
(an the order of 400k px) at the zoom level where they could see the 
details in the remaining bars. So, in this case the researchers wanted 
to "zoom" in on noise in a larger data set, causing that larger data to 
become huge in a graph.

And yes, you can code in bounds limits and attaching labels to indicate 
a bar is out of bound or exceeds display area, etc., but I do agree that 
for a number of applications having a large drawing area would be a big 
improvement.


On 10/6/2020 2:28 PM, Ralph DiMola via use-livecode wrote:
> Desktop and mobile. It's a scrolling group with many sub-groups each with 1
> or more fields. Sometimes the height of the main group > 32767.
>
> It's the result of a proximity search and in dense areas users are getting
> hosed by this limit. Customer is screaming (but don't they always).
>
> Ralph DiMola
> IT Director
> Evergreen Information Services
> rdimola at evergreeninfo.net
>
>
> -----Original Message-----
> From: use-livecode [mailto:use-livecode-bounces at lists.runrev.com] On Behalf
> Of Richard Gaskin via use-livecode
> Sent: Tuesday, October 06, 2020 2:01 PM
> To: use-livecode at lists.runrev.com
> Cc: Richard Gaskin
> Subject: Re: Canvas Limited to 32767
>
> Ralph DiMola wrote:
>
>   > I just ran head first into this. Could someone explain why other than  >
> moving from an int16 to an int32 this is such a challenge? This should  >
> have been addressed during the refactoring of the engine.
>
> Is this for the weird recommended mobile workaround of putting a text field
> into a group just to have it scroll, or something else?
>
> --
>    Richard Gaskin
>    Fourth World Systems
>    Software Design and Development for the Desktop, Mobile, and the Web
>    ____________________________________________________________________
>    Ambassador at FourthWorld.com                http://www.FourthWorld.com
>
>
> _______________________________________________
> use-livecode mailing list
> use-livecode at lists.runrev.com
> Please visit this url to subscribe, unsubscribe and manage your subscription
> preferences:
> http://lists.runrev.com/mailman/listinfo/use-livecode
>
>
> _______________________________________________
> use-livecode mailing list
> use-livecode at lists.runrev.com
> Please visit this url to subscribe, unsubscribe and manage your subscription preferences:
> http://lists.runrev.com/mailman/listinfo/use-livecode