id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
24410	"Increase ""Length Step"" (tlenstep) precision"	Lumikeiju	team	"**Rationale**
`1 ft = 0.3048 m`, but when the value `0.3048` is entered in the building_tools plugin's BuildingSizeDialog ""Length step"" (`tlenstep`) field, it is rounded to `0.305` and this causes a compounding error resulting in lengths like `100.07 ft` when `100 ft` is intended.

**Fix**
Use `setMaximumFractionDigits()` to support 4 decimal points:

{{{
    private final JFormattedTextField tlenstep = new JFormattedTextField(NumberFormat.getInstance());
    {
        ((NumberFormat) tlenstep.getFormatter()).setMaximumFractionDigits(4);
    }
}}}

in https://josm.openstreetmap.de/osmsvn/applications/editors/josm/plugins/buildings_tools/src/org/openstreetmap/josm/plugins/buildings_tools/BuildingSizeDialog.java"	enhancement	new	minor		Plugin buildings_tools	latest