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Antlion / Components / C-value Legend

C-value LegendLEGEND-001

Builds an explicit color legend for the C-value maps. Set the first number, the last number and the band size - the bands become <min, min to min+step, ... , >=max, each with its own color. Leave colors unwired for the built-in ramp, or supply your own (interpolated when fewer than the band count). Wire scheme into C-value Seat or C-value Tread; the map is then colored by these bands and C-value Map prints this legend on every sheet. Detail Mode on lists the two view-cut states (a seat row or a railing hiding the focal point, C<0) in their own colors; off folds them into the lowest band. It also carries the not-graded states - OPEN, FRONT, EMPTY and NA - as a fixed gray series, so every gray patch on the map is named on the sheet; the report output explains why each state appears and how to clear it. The component itself shows the legend on the canvas.

1Plan & setup
2Section
32D layout
43D solids
5Analysis

free Util 5 in · 4 out

Fig. 1 — PortsReads left, writes right
C-value Legend component in Grasshopper
Band Min MinNumber · itemFirst band boundary
Band Max MaxNumber · itemLast band boundary
Band Step StepNumber · itemBand size
Colors Colour · listYour own band colors, low band first
Detail Mode DetailBoolean · itemThe C-value bands stay the same either way
Scheme Object · itemThe legend as one object
Colors Colour · listThe color of each band, low band first
Band Labels Band LblText · listThe label of each band, as text
Report Text · listWhy the gray not-graded states appear and how to clear them

Colored ports carry the chain from one component to the next. The rest are values you set once.

Inputs

  • Band MinMinFirst band boundary. Everything below it forms the first band (default 60 mm)
  • Band MaxMaxLast band boundary. Everything at or above it forms the last band (default 200 mm)
  • Band StepStepBand size. Bands run from Band Min upward to Band Max (default 10 mm)
  • ColorsColorsYour own band colors, low band first. Fewer than bands = interpolated
  • Detail ModeDetailThe C-value bands stay the same either way. On = the two view-cut states (seat row or railing hiding the focal point, C<0) get their own colors and legend rows. Off = they are folded into the lowest band color (default on)

Outputs

  • SchemeSchemeThe legend as one object. Wire into the Color Scheme input of a C-value map
  • ColorsColorsThe color of each band, low band first
  • Band LabelsBand LblThe label of each band, as text
  • ReportReportWhy the gray not-graded states appear and how to clear them
Component
LEGEND-001
Ribbon
Util
Tier
free
Ports
5 in · 4 out
Version
1.0.11
Checked
2026-10-08