Isolated Footing — Settings reference

Existing walkthrough, images and video. This is classic Isolated Footing, separate from Isolated Footing 2.0. Two D12 sets, with Quantities 10 and 12, were independently counted on an educational footing. Both sets had outside-host warnings; this is a diagnostic result rather than an accepted example. Use the reference below to understand and check the tool, and read the walkthrough result before applying it to a project.

Common settings, direction and presets

Control	Unit / condition	Effect and verification
Bottom / Top / Side cover	mm	Independent cover on three sides. Use structural concrete geometry; more cover reduces distribution space.
Plan outline / highlighted edge	mouse pick	Hover and pick an outline edge to set the reference direction. A longest edge is selected initially; changing it can change X/Y interpretation.
Current Configuration	preset	Loads a preset; inspect each tab and confirm referenced types still exist before Create.
Save Configuration / Delete Configuration	actions	Save names and stores a preset; Delete removes the selected preset. Neither creates or removes model cages.

Bottom, top and middle meshes

Control	Unit / condition	Effect and verification
Bottom enabled	toggle	Enables the bottom role independently; populated disabled settings do not establish output.
Bottom X / Y diameter	RebarBarType	Independent X/Y types for bottom mesh; inspect actual type diameters.
Bottom X / Y: Spacing or Number	mode	Each direction chooses maximum pitch or fixed count; recheck the applicable value when switching.
Bottom X / Y spacing	mm; spacing mode	Reduce 200 to 150 mm to increase bottom density; verify spacing and quantity per set.
Bottom X / Y quantity	integer; count mode	Bars per direction in the bottom role, not the footing total. Include layer counts when totaling.
Bottom X / Y hook enabled / length	toggle + mm	Enable hooks independently per direction and enter positive lengths; disabled hooks lock length inputs. Inspect bottom bend directions.
Top enabled	toggle	Enables the top role independently; populated disabled settings do not establish output.
Top X / Y diameter	RebarBarType	Independent X/Y types for top mesh; inspect actual type diameters.
Top X / Y: Spacing or Number	mode	Each direction chooses maximum pitch or fixed count; recheck the applicable value when switching.
Top X / Y spacing	mm; spacing mode	Reduce 200 to 150 mm to increase top density; verify spacing and quantity per set.
Top X / Y quantity	integer; count mode	Bars per direction in the top role, not the footing total. Include layer counts when totaling.
Top X / Y hook enabled / length	toggle + mm	Enable hooks independently per direction and enter positive lengths; disabled hooks lock length inputs. Inspect top bend directions.
Middle enabled	toggle	Enables the middle role independently; populated disabled settings do not establish output.
Middle X / Y diameter	RebarBarType	Independent X/Y types for middle mesh; inspect actual type diameters.
Middle X / Y: Spacing or Number	mode	Each direction chooses maximum pitch or fixed count; recheck the applicable value when switching.
Middle X / Y spacing	mm; spacing mode	Reduce 200 to 150 mm to increase middle density; verify spacing and quantity per set.
Middle X / Y quantity	integer; count mode	Bars per direction in the middle role, not the footing total. Include layer counts when totaling.
Middle X / Y hook enabled / length	toggle + mm	Enable hooks independently per direction and enter positive lengths; disabled hooks lock length inputs. Inspect middle bend directions.
Middle layer quantity	integer	Number of middle layers through the thickness, distinct from X/Y bars in each layer.

Vertical bars

Control	Unit / condition	Effect and verification
Vertical enabled	toggle	Enables vertical bars. Check section geometry and location; these are not another tool’s column main bars.
Diameter	RebarBarType	Selects the vertical bar type; current XAML has no separate Y-type selector in this group.
X spacing / number mode; X spacing / quantity	mode + mm / integer	Chooses X distribution by positive pitch or count. Check the relevant edge and set in the model.
Y spacing / number mode; Y spacing / quantity	mode + mm / integer	Y distribution is independent of X; its quantity is not the entire footing total.
Hook length	mm	Vertical bar bend length; check actual geometry and cover.

Horizontal perimeter bars

Control	Unit / condition	Effect and verification
Horizontal enabled	toggle	Enables the perimeter role independently of meshes and vertical bars.
C / O	shape mode	C uses edge segments; O is a closed tie. Inspect actual shape after switching.
X / Y diameter	RebarBarType	Types for the two perimeter directions; independent from bottom-mesh types.
X / Y hook enabled and length	toggle + mm	Independent hooks per direction; length input is enabled by its checkbox and must be positive when used.
Hook Type	RebarHookType; O mode	Hook selector is enabled for O mode; a suitable loaded RebarHookType is required.
Layer quantity	integer	Number of perimeter layers through the footing height, distinct from bottom-mesh bar count. Check each elevation.

Generation, verification and saving

Control	Unit / condition	Effect and verification
Create / tabs / Close	actions	Create validates inputs, persists settings and generates Rebar. Tabs/Close do not verify model elements. Saving the RVT is separate.
Validation messages	blocking input checks	Missing types, nonpositive pitch/count or enabled hooks with nonpositive length are rejected. Correct the reported input and retain meaningful warnings.
Selected Rebar Properties	independent model check	Select each set and read host, type, quantity, pitch and layout rule, then total sets for the intended host. Preview totals or one selected-set quantity are not footing totals.
Repeat exercise	separate model copies	Test spacing 200 → 150 → 200 mm or count 8 → 10 → 8 in one mode, using clean copies. These are proposed exercises, not newly confirmed runtime cases.