Visual Map — VisualMap • rtemis.draw

Continuous visual map component that maps data values to visual properties (typically color). Required for heatmaps.

Usage

VisualMap(
  type = "continuous",
  min = NULL,
  max = NULL,
  precision = NULL,
  calculable = NULL,
  show = NULL,
  orient = NULL,
  in_range = NULL,
  out_of_range = NULL,
  left = NULL,
  right = NULL,
  top = NULL,
  bottom = NULL
)

Arguments

type: Character {"continuous", "piecewise"}: Visual map type.
min: Optional Numeric: Minimum value of the mapped data range.
max: Optional Numeric: Maximum value of the mapped data range.
precision: Optional Integer [0, Inf): Decimal places shown in colorbar labels and the draggable-handle tooltip. ECharts defaults to 0, which rounds labels to whole numbers — set this to match value_digits for accurate display.
calculable: Optional Logical: Whether to show drag handles for interactive range selection.
show: Optional Logical: Whether to display the visual map legend.
orient: Optional Character {"vertical", "horizontal"}: Orientation of the color bar.
in_range: Optional list: Visual encoding for in-range values. Typically list(color = c("blue", "white", "red")).
out_of_range: Optional list: Visual encoding for out-of-range values.
left: Optional Numeric or Character: Distance from the left of the container.
right: Optional Numeric or Character: Distance from the right of the container.
top: Optional Numeric or Character: Distance from the top of the container.
bottom: Optional Numeric or Character: Distance from the bottom of the container.

Details

Corresponds to ContinuousVisualMapOption in src/component/visualMap/ContinuousModel.ts. ECharts docs: https://echarts.apache.org/en/option.html#visualMap-continuous