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JavaScript Figure Reference: isosurface Traces

A isosurface trace is an object with the key "type" equal to "isosurface" (i.e. {"type": "isosurface"}) and any of the keys listed below.

Draws isosurfaces between iso-min and iso-max values with coordinates given by four 1-dimensional arrays containing the `value`, `x`, `y` and `z` of every vertex of a uniform or non-uniform 3-D grid. Horizontal or vertical slices, caps as well as spaceframe between iso-min and iso-max values could also be drawn using this trace.

  • type
    Parent: data[type=isosurface]
    Type: "isosurface"
  • name
    Parent: data[type=isosurface]
    Type: string

    Sets the trace name. The trace name appear as the legend item and on hover.

  • visible
    Parent: data[type=isosurface]
    Type: enumerated , one of ( true | false | "legendonly" )
    Default: true

    Determines whether or not this trace is visible. If "legendonly", the trace is not drawn, but can appear as a legend item (provided that the legend itself is visible).

  • showlegend
    Parent: data[type=isosurface]
    Type: boolean

    Determines whether or not an item corresponding to this trace is shown in the legend.

  • legendgroup
    Parent: data[type=isosurface]
    Type: string
    Default: ""

    Sets the legend group for this trace. Traces part of the same legend group hide/show at the same time when toggling legend items.

  • opacity
    Parent: data[type=isosurface]
    Type: number between or equal to 0 and 1
    Default: 1

    Sets the opacity of the surface. Please note that in the case of using high `opacity` values for example a value greater than or equal to 0.5 on two surfaces (and 0.25 with four surfaces), an overlay of multiple transparent surfaces may not perfectly be sorted in depth by the webgl API. This behavior may be improved in the near future and is subject to change.

  • ids
    Parent: data[type=isosurface]
    Type: data array

    Assigns id labels to each datum. These ids for object constancy of data points during animation. Should be an array of strings, not numbers or any other type.

  • x
    Parent: data[type=isosurface]
    Type: data array

    Sets the X coordinates of the vertices on X axis.

  • y
    Parent: data[type=isosurface]
    Type: data array

    Sets the Y coordinates of the vertices on Y axis.

  • z
    Parent: data[type=isosurface]
    Type: data array

    Sets the Z coordinates of the vertices on Z axis.

  • value
    Parent: data[type=isosurface]
    Type: data array

    Sets the 4th dimension (value) of the vertices.

  • text
    Parent: data[type=isosurface]
    Type: string or array of strings
    Default: ""

    Sets the text elements associated with the vertices. If trace `hoverinfo` contains a "text" flag and "hovertext" is not set, these elements will be seen in the hover labels.

  • hovertext
    Parent: data[type=isosurface]
    Type: string or array of strings
    Default: ""

    Same as `text`.

  • hoverinfo
    Parent: data[type=isosurface]
    Type: flaglist string. Any combination of "x", "y", "z", "text", "name" joined with a "+" OR "all" or "none" or "skip".
    Examples: "x", "y", "x+y", "x+y+z", "all"
    Default: "all"

    Determines which trace information appear on hover. If `none` or `skip` are set, no information is displayed upon hovering. But, if `none` is set, click and hover events are still fired.

  • hovertemplate
    Parent: data[type=isosurface]
    Type: string or array of strings
    Default: ""

    Template string used for rendering the information that appear on hover box. Note that this will override `hoverinfo`. Variables are inserted using %{variable}, for example "y: %{y}". Numbers are formatted using d3-format's syntax %{variable:d3-format}, for example "Price: %{y:$.2f}". https://github.com/d3/d3-3.x-api-reference/blob/master/Formatting.md#d3_format for details on the formatting syntax. Dates are formatted using d3-time-format's syntax %{variable|d3-time-format}, for example "Day: %{2019-01-01|%A}". https://github.com/d3/d3-time-format#locale_format for details on the date formatting syntax. The variables available in `hovertemplate` are the ones emitted as event data described at this link https://plotly.com/javascript/plotlyjs-events/#event-data. Additionally, every attributes that can be specified per-point (the ones that are `arrayOk: true`) are available. Anything contained in tag `<extra>` is displayed in the secondary box, for example "<extra>{fullData.name}</extra>". To hide the secondary box completely, use an empty tag `<extra></extra>`.

  • meta
    Parent: data[type=isosurface]
    Type: number or categorical coordinate string

    Assigns extra meta information associated with this trace that can be used in various text attributes. Attributes such as trace `name`, graph, axis and colorbar `title.text`, annotation `text` `rangeselector`, `updatemenues` and `sliders` `label` text all support `meta`. To access the trace `meta` values in an attribute in the same trace, simply use `%{meta[i]}` where `i` is the index or key of the `meta` item in question. To access trace `meta` in layout attributes, use `%{data[n[.meta[i]}` where `i` is the index or key of the `meta` and `n` is the trace index.

  • customdata
    Parent: data[type=isosurface]
    Type: data array

    Assigns extra data each datum. This may be useful when listening to hover, click and selection events. Note that, "scatter" traces also appends customdata items in the markers DOM elements

  • scene
    Parent: data[type=isosurface]
    Type: subplotid
    Default: scene

    Sets a reference between this trace's 3D coordinate system and a 3D scene. If "scene" (the default value), the (x,y,z) coordinates refer to `layout.scene`. If "scene2", the (x,y,z) coordinates refer to `layout.scene2`, and so on.

  • coloraxis
    Parent: data[type=isosurface]
    Type: subplotid

    Sets a reference to a shared color axis. References to these shared color axes are "coloraxis", "coloraxis2", "coloraxis3", etc. Settings for these shared color axes are set in the layout, under `layout.coloraxis`, `layout.coloraxis2`, etc. Note that multiple color scales can be linked to the same color axis.

  • colorbar
    Parent: data[type=isosurface]
    Type: object containing one or more of the keys listed below.
    • thicknessmode
      Parent: data[type=isosurface].colorbar
      Type: enumerated , one of ( "fraction" | "pixels" )
      Default: "pixels"

      Determines whether this color bar's thickness (i.e. the measure in the constant color direction) is set in units of plot "fraction" or in "pixels". Use `thickness` to set the value.

    • thickness
      Parent: data[type=isosurface].colorbar
      Type: number greater than or equal to 0
      Default: 30

      Sets the thickness of the color bar This measure excludes the size of the padding, ticks and labels.

    • lenmode
      Parent: data[type=isosurface].colorbar
      Type: enumerated , one of ( "fraction" | "pixels" )
      Default: "fraction"

      Determines whether this color bar's length (i.e. the measure in the color variation direction) is set in units of plot "fraction" or in "pixels. Use `len` to set the value.

    • len
      Parent: data[type=isosurface].colorbar
      Type: number greater than or equal to 0
      Default: 1

      Sets the length of the color bar This measure excludes the padding of both ends. That is, the color bar length is this length minus the padding on both ends.

    • x
      Parent: data[type=isosurface].colorbar
      Type: number between or equal to -2 and 3
      Default: 1.02

      Sets the x position of the color bar (in plot fraction).

    • xanchor
      Parent: data[type=isosurface].colorbar
      Type: enumerated , one of ( "left" | "center" | "right" )
      Default: "left"

      Sets this color bar's horizontal position anchor. This anchor binds the `x` position to the "left", "center" or "right" of the color bar.

    • xpad
      Parent: data[type=isosurface].colorbar
      Type: number greater than or equal to 0
      Default: 10

      Sets the amount of padding (in px) along the x direction.

    • y
      Parent: data[type=isosurface].colorbar
      Type: number between or equal to -2 and 3
      Default: 0.5

      Sets the y position of the color bar (in plot fraction).

    • yanchor
      Parent: data[type=isosurface].colorbar
      Type: enumerated , one of ( "top" | "middle" | "bottom" )
      Default: "middle"

      Sets this color bar's vertical position anchor This anchor binds the `y` position to the "top", "middle" or "bottom" of the color bar.

    • ypad
      Parent: data[type=isosurface].colorbar
      Type: number greater than or equal to 0
      Default: 10

      Sets the amount of padding (in px) along the y direction.

    • outlinecolor
      Parent: data[type=isosurface].colorbar
      Type: color
      Default: "#444"

      Sets the axis line color.

    • outlinewidth
      Parent: data[type=isosurface].colorbar
      Type: number greater than or equal to 0
      Default: 1

      Sets the width (in px) of the axis line.

    • bordercolor
      Parent: data[type=isosurface].colorbar
      Type: color
      Default: "#444"

      Sets the axis line color.

    • borderwidth
      Parent: data[type=isosurface].colorbar
      Type: number greater than or equal to 0
      Default: 0

      Sets the width (in px) or the border enclosing this color bar.

    • bgcolor
      Parent: data[type=isosurface].colorbar
      Type: color
      Default: "rgba(0,0,0,0)"

      Sets the color of padded area.

    • tickmode
      Parent: data[type=isosurface].colorbar
      Type: enumerated , one of ( "auto" | "linear" | "array" )

      Sets the tick mode for this axis. If "auto", the number of ticks is set via `nticks`. If "linear", the placement of the ticks is determined by a starting position `tick0` and a tick step `dtick` ("linear" is the default value if `tick0` and `dtick` are provided). If "array", the placement of the ticks is set via `tickvals` and the tick text is `ticktext`. ("array" is the default value if `tickvals` is provided).

    • nticks
      Parent: data[type=isosurface].colorbar
      Type: integer greater than or equal to 0
      Default: 0

      Specifies the maximum number of ticks for the particular axis. The actual number of ticks will be chosen automatically to be less than or equal to `nticks`. Has an effect only if `tickmode` is set to "auto".

    • tick0
      Parent: data[type=isosurface].colorbar
      Type: number or categorical coordinate string

      Sets the placement of the first tick on this axis. Use with `dtick`. If the axis `type` is "log", then you must take the log of your starting tick (e.g. to set the starting tick to 100, set the `tick0` to 2) except when `dtick`="L<f>" (see `dtick` for more info). If the axis `type` is "date", it should be a date string, like date data. If the axis `type` is "category", it should be a number, using the scale where each category is assigned a serial number from zero in the order it appears.

    • dtick
      Parent: data[type=isosurface].colorbar
      Type: number or categorical coordinate string

      Sets the step in-between ticks on this axis. Use with `tick0`. Must be a positive number, or special strings available to "log" and "date" axes. If the axis `type` is "log", then ticks are set every 10^(n"dtick) where n is the tick number. For example, to set a tick mark at 1, 10, 100, 1000, ... set dtick to 1. To set tick marks at 1, 100, 10000, ... set dtick to 2. To set tick marks at 1, 5, 25, 125, 625, 3125, ... set dtick to log_10(5), or 0.69897000433. "log" has several special values; "L<f>", where `f` is a positive number, gives ticks linearly spaced in value (but not position). For example `tick0` = 0.1, `dtick` = "L0.5" will put ticks at 0.1, 0.6, 1.1, 1.6 etc. To show powers of 10 plus small digits between, use "D1" (all digits) or "D2" (only 2 and 5). `tick0` is ignored for "D1" and "D2". If the axis `type` is "date", then you must convert the time to milliseconds. For example, to set the interval between ticks to one day, set `dtick` to 86400000.0. "date" also has special values "M<n>" gives ticks spaced by a number of months. `n` must be a positive integer. To set ticks on the 15th of every third month, set `tick0` to "2000-01-15" and `dtick` to "M3". To set ticks every 4 years, set `dtick` to "M48"

    • tickvals
      Parent: data[type=isosurface].colorbar
      Type: data array

      Sets the values at which ticks on this axis appear. Only has an effect if `tickmode` is set to "array". Used with `ticktext`.

    • ticktext
      Parent: data[type=isosurface].colorbar
      Type: data array

      Sets the text displayed at the ticks position via `tickvals`. Only has an effect if `tickmode` is set to "array". Used with `tickvals`.

    • ticks
      Parent: data[type=isosurface].colorbar
      Type: enumerated , one of ( "outside" | "inside" | "" )
      Default: ""

      Determines whether ticks are drawn or not. If "", this axis' ticks are not drawn. If "outside" ("inside"), this axis' are drawn outside (inside) the axis lines.

    • ticklen
      Parent: data[type=isosurface].colorbar
      Type: number greater than or equal to 0
      Default: 5

      Sets the tick length (in px).

    • tickwidth
      Parent: data[type=isosurface].colorbar
      Type: number greater than or equal to 0
      Default: 1

      Sets the tick width (in px).

    • tickcolor
      Parent: data[type=isosurface].colorbar
      Type: color
      Default: "#444"

      Sets the tick color.

    • showticklabels
      Parent: data[type=isosurface].colorbar
      Type: boolean
      Default: true

      Determines whether or not the tick labels are drawn.

    • tickfont
      Parent: data[type=isosurface].colorbar
      Type: object containing one or more of the keys listed below.

      Sets the color bar's tick label font

      • family
        Parent: data[type=isosurface].colorbar.tickfont
        Type: string

        HTML font family - the typeface that will be applied by the web browser. The web browser will only be able to apply a font if it is available on the system which it operates. Provide multiple font families, separated by commas, to indicate the preference in which to apply fonts if they aren't available on the system. The Chart Studio Cloud (at https://chart-studio.plotly.com or on-premise) generates images on a server, where only a select number of fonts are installed and supported. These include "Arial", "Balto", "Courier New", "Droid Sans",, "Droid Serif", "Droid Sans Mono", "Gravitas One", "Old Standard TT", "Open Sans", "Overpass", "PT Sans Narrow", "Raleway", "Times New Roman".

      • size
        Parent: data[type=isosurface].colorbar.tickfont
        Type: number greater than or equal to 1
      • color
        Parent: data[type=isosurface].colorbar.tickfont
        Type: color
    • tickangle
      Parent: data[type=isosurface].colorbar
      Type: angle
      Default: "auto"

      Sets the angle of the tick labels with respect to the horizontal. For example, a `tickangle` of -90 draws the tick labels vertically.

    • tickformat
      Parent: data[type=isosurface].colorbar
      Type: string
      Default: ""

      Sets the tick label formatting rule using d3 formatting mini-languages which are very similar to those in Python. For numbers, see: https://github.com/d3/d3-3.x-api-reference/blob/master/Formatting.md#d3_format And for dates see: https://github.com/d3/d3-time-format#locale_format We add one item to d3's date formatter: "%{n}f" for fractional seconds with n digits. For example, "2016-10-13 09:15:23.456" with tickformat "%H~%M~%S.%2f" would display "09~15~23.46"

    • tickformatstops
      Parent: data[type=isosurface].colorbar
      Type: array of object where each object has one or more of the keys listed below.
      • enabled
        Parent: data[type=isosurface].colorbar.tickformatstops[]
        Type: boolean
        Default: true

        Determines whether or not this stop is used. If `false`, this stop is ignored even within its `dtickrange`.

      • dtickrange
        Parent: data[type=isosurface].colorbar.tickformatstops[]
        Type: array

        range ["min", "max"], where "min", "max" - dtick values which describe some zoom level, it is possible to omit "min" or "max" value by passing "null"

      • value
        Parent: data[type=isosurface].colorbar.tickformatstops[]
        Type: string
        Default: ""

        string - dtickformat for described zoom level, the same as "tickformat"

      • name
        Parent: data[type=isosurface].colorbar.tickformatstops[]
        Type: string

        When used in a template, named items are created in the output figure in addition to any items the figure already has in this array. You can modify these items in the output figure by making your own item with `templateitemname` matching this `name` alongside your modifications (including `visible: false` or `enabled: false` to hide it). Has no effect outside of a template.

      • templateitemname
        Parent: data[type=isosurface].colorbar.tickformatstops[]
        Type: string

        Used to refer to a named item in this array in the template. Named items from the template will be created even without a matching item in the input figure, but you can modify one by making an item with `templateitemname` matching its `name`, alongside your modifications (including `visible: false` or `enabled: false` to hide it). If there is no template or no matching item, this item will be hidden unless you explicitly show it with `visible: true`.

    • tickprefix
      Parent: data[type=isosurface].colorbar
      Type: string
      Default: ""

      Sets a tick label prefix.

    • showtickprefix
      Parent: data[type=isosurface].colorbar
      Type: enumerated , one of ( "all" | "first" | "last" | "none" )
      Default: "all"

      If "all", all tick labels are displayed with a prefix. If "first", only the first tick is displayed with a prefix. If "last", only the last tick is displayed with a suffix. If "none", tick prefixes are hidden.

    • ticksuffix
      Parent: data[type=isosurface].colorbar
      Type: string
      Default: ""

      Sets a tick label suffix.

    • showticksuffix
      Parent: data[type=isosurface].colorbar
      Type: enumerated , one of ( "all" | "first" | "last" | "none" )
      Default: "all"

      Same as `showtickprefix` but for tick suffixes.

    • separatethousands
      Parent: data[type=isosurface].colorbar
      Type: boolean

      If "true", even 4-digit integers are separated

    • exponentformat
      Parent: data[type=isosurface].colorbar
      Type: enumerated , one of ( "none" | "e" | "E" | "power" | "SI" | "B" )
      Default: "B"

      Determines a formatting rule for the tick exponents. For example, consider the number 1,000,000,000. If "none", it appears as 1,000,000,000. If "e", 1e+9. If "E", 1E+9. If "power", 1x10^9 (with 9 in a super script). If "SI", 1G. If "B", 1B.

    • showexponent
      Parent: data[type=isosurface].colorbar
      Type: enumerated , one of ( "all" | "first" | "last" | "none" )
      Default: "all"

      If "all", all exponents are shown besides their significands. If "first", only the exponent of the first tick is shown. If "last", only the exponent of the last tick is shown. If "none", no exponents appear.

    • title
      Parent: data[type=isosurface].colorbar
      Type: object containing one or more of the keys listed below.
      • text
        Parent: data[type=isosurface].colorbar.title
        Type: string

        Sets the title of the color bar. Note that before the existence of `title.text`, the title's contents used to be defined as the `title` attribute itself. This behavior has been deprecated.

      • font
        Parent: data[type=isosurface].colorbar.title
        Type: object containing one or more of the keys listed below.

        Sets this color bar's title font. Note that the title's font used to be set by the now deprecated `titlefont` attribute.

        • family
          Parent: data[type=isosurface].colorbar.title.font
          Type: string

          HTML font family - the typeface that will be applied by the web browser. The web browser will only be able to apply a font if it is available on the system which it operates. Provide multiple font families, separated by commas, to indicate the preference in which to apply fonts if they aren't available on the system. The Chart Studio Cloud (at https://chart-studio.plotly.com or on-premise) generates images on a server, where only a select number of fonts are installed and supported. These include "Arial", "Balto", "Courier New", "Droid Sans",, "Droid Serif", "Droid Sans Mono", "Gravitas One", "Old Standard TT", "Open Sans", "Overpass", "PT Sans Narrow", "Raleway", "Times New Roman".

        • size
          Parent: data[type=isosurface].colorbar.title.font
          Type: number greater than or equal to 1
        • color
          Parent: data[type=isosurface].colorbar.title.font
          Type: color
      • side
        Parent: data[type=isosurface].colorbar.title
        Type: enumerated , one of ( "right" | "top" | "bottom" )
        Default: "top"

        Determines the location of color bar's title with respect to the color bar. Note that the title's location used to be set by the now deprecated `titleside` attribute.

  • autocolorscale
    Parent: data[type=isosurface]
    Type: boolean
    Default: true

    Determines whether the colorscale is a default palette (`autocolorscale: true`) or the palette determined by `colorscale`. In case `colorscale` is unspecified or `autocolorscale` is true, the default palette will be chosen according to whether numbers in the `color` array are all positive, all negative or mixed.

  • colorscale
    Parent: data[type=isosurface]
    Type: colorscale

    Sets the colorscale. The colorscale must be an array containing arrays mapping a normalized value to an rgb, rgba, hex, hsl, hsv, or named color string. At minimum, a mapping for the lowest (0) and highest (1) values are required. For example, `[[0, 'rgb(0,0,255)'], [1, 'rgb(255,0,0)']]`. To control the bounds of the colorscale in color space, use`cmin` and `cmax`. Alternatively, `colorscale` may be a palette name string of the following list: Greys,YlGnBu,Greens,YlOrRd,Bluered,RdBu,Reds,Blues,Picnic,Rainbow,Portland,Jet,Hot,Blackbody,Earth,Electric,Viridis,Cividis.

  • showscale
    Parent: data[type=isosurface]
    Type: boolean
    Default: true

    Determines whether or not a colorbar is displayed for this trace.

  • reversescale
    Parent: data[type=isosurface]
    Type: boolean

    Reverses the color mapping if true. If true, `cmin` will correspond to the last color in the array and `cmax` will correspond to the first color.

  • cauto
    Parent: data[type=isosurface]
    Type: boolean
    Default: true

    Determines whether or not the color domain is computed with respect to the input data (here `value`) or the bounds set in `cmin` and `cmax` Defaults to `false` when `cmin` and `cmax` are set by the user.

  • cmax
    Parent: data[type=isosurface]
    Type: number

    Sets the upper bound of the color domain. Value should have the same units as `value` and if set, `cmin` must be set as well.

  • cmid
    Parent: data[type=isosurface]
    Type: number

    Sets the mid-point of the color domain by scaling `cmin` and/or `cmax` to be equidistant to this point. Value should have the same units as `value`. Has no effect when `cauto` is `false`.

  • cmin
    Parent: data[type=isosurface]
    Type: number

    Sets the lower bound of the color domain. Value should have the same units as `value` and if set, `cmax` must be set as well.

  • caps
    Parent: data[type=isosurface]
    Type: object containing one or more of the keys listed below.
    • x
      Parent: data[type=isosurface].caps
      Type: object containing one or more of the keys listed below.
      • show
        Parent: data[type=isosurface].caps.x
        Type: boolean
        Default: true

        Sets the fill ratio of the `slices`. The default fill value of the x `slices` is 1 meaning that they are entirely shaded. On the other hand Applying a `fill` ratio less than one would allow the creation of openings parallel to the edges.

      • fill
        Parent: data[type=isosurface].caps.x
        Type: number between or equal to 0 and 1
        Default: 1

        Sets the fill ratio of the `caps`. The default fill value of the `caps` is 1 meaning that they are entirely shaded. On the other hand Applying a `fill` ratio less than one would allow the creation of openings parallel to the edges.

    • y
      Parent: data[type=isosurface].caps
      Type: object containing one or more of the keys listed below.
      • show
        Parent: data[type=isosurface].caps.y
        Type: boolean
        Default: true

        Sets the fill ratio of the `slices`. The default fill value of the y `slices` is 1 meaning that they are entirely shaded. On the other hand Applying a `fill` ratio less than one would allow the creation of openings parallel to the edges.

      • fill
        Parent: data[type=isosurface].caps.y
        Type: number between or equal to 0 and 1
        Default: 1

        Sets the fill ratio of the `caps`. The default fill value of the `caps` is 1 meaning that they are entirely shaded. On the other hand Applying a `fill` ratio less than one would allow the creation of openings parallel to the edges.

    • z
      Parent: data[type=isosurface].caps
      Type: object containing one or more of the keys listed below.
      • show
        Parent: data[type=isosurface].caps.z
        Type: boolean
        Default: true

        Sets the fill ratio of the `slices`. The default fill value of the z `slices` is 1 meaning that they are entirely shaded. On the other hand Applying a `fill` ratio less than one would allow the creation of openings parallel to the edges.

      • fill
        Parent: data[type=isosurface].caps.z
        Type: number between or equal to 0 and 1
        Default: 1

        Sets the fill ratio of the `caps`. The default fill value of the `caps` is 1 meaning that they are entirely shaded. On the other hand Applying a `fill` ratio less than one would allow the creation of openings parallel to the edges.

  • contour
    Parent: data[type=isosurface]
    Type: object containing one or more of the keys listed below.
    • show
      Parent: data[type=isosurface].contour
      Type: boolean

      Sets whether or not dynamic contours are shown on hover

    • color
      Parent: data[type=isosurface].contour
      Type: color
      Default: "#444"

      Sets the color of the contour lines.

    • width
      Parent: data[type=isosurface].contour
      Type: number between or equal to 1 and 16
      Default: 2

      Sets the width of the contour lines.

  • flatshading
    Parent: data[type=isosurface]
    Type: boolean
    Default: true

    Determines whether or not normal smoothing is applied to the meshes, creating meshes with an angular, low-poly look via flat reflections.

  • hoverlabel
    Parent: data[type=isosurface]
    Type: object containing one or more of the keys listed below.
    • bgcolor
      Parent: data[type=isosurface].hoverlabel
      Type: color or array of colors

      Sets the background color of the hover labels for this trace

    • bordercolor
      Parent: data[type=isosurface].hoverlabel
      Type: color or array of colors

      Sets the border color of the hover labels for this trace.

    • font
      Parent: data[type=isosurface].hoverlabel
      Type: object containing one or more of the keys listed below.

      Sets the font used in hover labels.

      • family
        Parent: data[type=isosurface].hoverlabel.font
        Type: string or array of strings

        HTML font family - the typeface that will be applied by the web browser. The web browser will only be able to apply a font if it is available on the system which it operates. Provide multiple font families, separated by commas, to indicate the preference in which to apply fonts if they aren't available on the system. The Chart Studio Cloud (at https://chart-studio.plotly.com or on-premise) generates images on a server, where only a select number of fonts are installed and supported. These include "Arial", "Balto", "Courier New", "Droid Sans",, "Droid Serif", "Droid Sans Mono", "Gravitas One", "Old Standard TT", "Open Sans", "Overpass", "PT Sans Narrow", "Raleway", "Times New Roman".

      • size
        Parent: data[type=isosurface].hoverlabel.font
        Type: number or array of numbers greater than or equal to 1
      • color
        Parent: data[type=isosurface].hoverlabel.font
        Type: color or array of colors
    • align
      Parent: data[type=isosurface].hoverlabel
      Type: enumerated or array of enumerateds , one of ( "left" | "right" | "auto" )
      Default: "auto"

      Sets the horizontal alignment of the text content within hover label box. Has an effect only if the hover label text spans more two or more lines

    • namelength
      Parent: data[type=isosurface].hoverlabel
      Type: integer or array of integers greater than or equal to -1
      Default: 15

      Sets the default length (in number of characters) of the trace name in the hover labels for all traces. -1 shows the whole name regardless of length. 0-3 shows the first 0-3 characters, and an integer >3 will show the whole name if it is less than that many characters, but if it is longer, will truncate to `namelength - 3` characters and add an ellipsis.

  • isomax
    Parent: data[type=isosurface]
    Type: number

    Sets the maximum boundary for iso-surface plot.

  • isomin
    Parent: data[type=isosurface]
    Type: number

    Sets the minimum boundary for iso-surface plot.

  • lighting
    Parent: data[type=isosurface]
    Type: object containing one or more of the keys listed below.
    • vertexnormalsepsilon
      Parent: data[type=isosurface].lighting
      Type: number between or equal to 0 and 1
      Default: 1e-12

      Epsilon for vertex normals calculation avoids math issues arising from degenerate geometry.

    • facenormalsepsilon
      Parent: data[type=isosurface].lighting
      Type: number between or equal to 0 and 1
      Default: 0

      Epsilon for face normals calculation avoids math issues arising from degenerate geometry.

    • ambient
      Parent: data[type=isosurface].lighting
      Type: number between or equal to 0 and 1
      Default: 0.8

      Ambient light increases overall color visibility but can wash out the image.

    • diffuse
      Parent: data[type=isosurface].lighting
      Type: number between or equal to 0 and 1
      Default: 0.8

      Represents the extent that incident rays are reflected in a range of angles.

    • specular
      Parent: data[type=isosurface].lighting
      Type: number between or equal to 0 and 2
      Default: 0.05

      Represents the level that incident rays are reflected in a single direction, causing shine.

    • roughness
      Parent: data[type=isosurface].lighting
      Type: number between or equal to 0 and 1
      Default: 0.5

      Alters specular reflection; the rougher the surface, the wider and less contrasty the shine.

    • fresnel
      Parent: data[type=isosurface].lighting
      Type: number between or equal to 0 and 5
      Default: 0.2

      Represents the reflectance as a dependency of the viewing angle; e.g. paper is reflective when viewing it from the edge of the paper (almost 90 degrees), causing shine.

  • lightposition
    Parent: data[type=isosurface]
    Type: object containing one or more of the keys listed below.
    • x
      Parent: data[type=isosurface].lightposition
      Type: number between or equal to -100000 and 100000
      Default: 100000

      Numeric vector, representing the X coordinate for each vertex.

    • y
      Parent: data[type=isosurface].lightposition
      Type: number between or equal to -100000 and 100000
      Default: 100000

      Numeric vector, representing the Y coordinate for each vertex.

    • z
      Parent: data[type=isosurface].lightposition
      Type: number between or equal to -100000 and 100000
      Default: 0

      Numeric vector, representing the Z coordinate for each vertex.

  • slices
    Parent: data[type=isosurface]
    Type: object containing one or more of the keys listed below.
    • x
      Parent: data[type=isosurface].slices
      Type: object containing one or more of the keys listed below.
      • show
        Parent: data[type=isosurface].slices.x
        Type: boolean

        Determines whether or not slice planes about the x dimension are drawn.

      • locations
        Parent: data[type=isosurface].slices.x
        Type: data array
        Default:

        Specifies the location(s) of slices on the axis. When not specified slices would be created for all points of the axis x except start and end.

      • fill
        Parent: data[type=isosurface].slices.x
        Type: number between or equal to 0 and 1
        Default: 1

        Sets the fill ratio of the `slices`. The default fill value of the `slices` is 1 meaning that they are entirely shaded. On the other hand Applying a `fill` ratio less than one would allow the creation of openings parallel to the edges.

    • y
      Parent: data[type=isosurface].slices
      Type: object containing one or more of the keys listed below.
      • show
        Parent: data[type=isosurface].slices.y
        Type: boolean

        Determines whether or not slice planes about the y dimension are drawn.

      • locations
        Parent: data[type=isosurface].slices.y
        Type: data array
        Default:

        Specifies the location(s) of slices on the axis. When not specified slices would be created for all points of the axis y except start and end.

      • fill
        Parent: data[type=isosurface].slices.y
        Type: number between or equal to 0 and 1
        Default: 1

        Sets the fill ratio of the `slices`. The default fill value of the `slices` is 1 meaning that they are entirely shaded. On the other hand Applying a `fill` ratio less than one would allow the creation of openings parallel to the edges.

    • z
      Parent: data[type=isosurface].slices
      Type: object containing one or more of the keys listed below.
      • show
        Parent: data[type=isosurface].slices.z
        Type: boolean

        Determines whether or not slice planes about the z dimension are drawn.

      • locations
        Parent: data[type=isosurface].slices.z
        Type: data array
        Default:

        Specifies the location(s) of slices on the axis. When not specified slices would be created for all points of the axis z except start and end.

      • fill
        Parent: data[type=isosurface].slices.z
        Type: number between or equal to 0 and 1
        Default: 1

        Sets the fill ratio of the `slices`. The default fill value of the `slices` is 1 meaning that they are entirely shaded. On the other hand Applying a `fill` ratio less than one would allow the creation of openings parallel to the edges.

  • spaceframe
    Parent: data[type=isosurface]
    Type: object containing one or more of the keys listed below.
    • show
      Parent: data[type=isosurface].spaceframe
      Type: boolean

      Displays/hides tetrahedron shapes between minimum and maximum iso-values. Often useful when either caps or surfaces are disabled or filled with values less than 1.

    • fill
      Parent: data[type=isosurface].spaceframe
      Type: number between or equal to 0 and 1
      Default: 0.15

      Sets the fill ratio of the `spaceframe` elements. The default fill value is 0.15 meaning that only 15% of the area of every faces of tetras would be shaded. Applying a greater `fill` ratio would allow the creation of stronger elements or could be sued to have entirely closed areas (in case of using 1).

  • surface
    Parent: data[type=isosurface]
    Type: object containing one or more of the keys listed below.
    • show
      Parent: data[type=isosurface].surface
      Type: boolean
      Default: true

      Hides/displays surfaces between minimum and maximum iso-values.

    • count
      Parent: data[type=isosurface].surface
      Type: integer greater than or equal to 1
      Default: 2

      Sets the number of iso-surfaces between minimum and maximum iso-values. By default this value is 2 meaning that only minimum and maximum surfaces would be drawn.

    • fill
      Parent: data[type=isosurface].surface
      Type: number between or equal to 0 and 1
      Default: 1

      Sets the fill ratio of the iso-surface. The default fill value of the surface is 1 meaning that they are entirely shaded. On the other hand Applying a `fill` ratio less than one would allow the creation of openings parallel to the edges.

    • pattern
      Parent: data[type=isosurface].surface
      Type: flaglist string. Any combination of "A", "B", "C", "D", "E" joined with a "+" OR "all" or "odd" or "even".
      Examples: "A", "B", "A+B", "A+B+C", "all"
      Default: "all"

      Sets the surface pattern of the iso-surface 3-D sections. The default pattern of the surface is `all` meaning that the rest of surface elements would be shaded. The check options (either 1 or 2) could be used to draw half of the squares on the surface. Using various combinations of capital `A`, `B`, `C`, `D` and `E` may also be used to reduce the number of triangles on the iso-surfaces and creating other patterns of interest.

  • uirevision
    Parent: data[type=isosurface]
    Type: number or categorical coordinate string

    Controls persistence of some user-driven changes to the trace: `constraintrange` in `parcoords` traces, as well as some `editable: true` modifications such as `name` and `colorbar.title`. Defaults to `layout.uirevision`. Note that other user-driven trace attribute changes are controlled by `layout` attributes: `trace.visible` is controlled by `layout.legend.uirevision`, `selectedpoints` is controlled by `layout.selectionrevision`, and `colorbar.(x|y)` (accessible with `config: {editable: true}`) is controlled by `layout.editrevision`. Trace changes are tracked by `uid`, which only falls back on trace index if no `uid` is provided. So if your app can add/remove traces before the end of the `data` array, such that the same trace has a different index, you can still preserve user-driven changes if you give each trace a `uid` that stays with it as it moves.