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<!DOCTYPE html>

<head>

<title>plotly.graph_objects.Contour — 4.6.0 documentation</title>

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<h1><a class="reference internal" href="plotly.graph_objects.html#module-plotly.graph_objects" title="plotly.graph_objects"><code class="xref py py-mod docutils literal notranslate">plotly.graph_objects</code></a>.Contour<a class="headerlink" href="#plotly-graph-objs-contour" title="Permalink to this headline">¶</a></h1>

class <code class="sig-prename descclassname">plotly.graph_objects.</code><code class="sig-name descname">Contour</code>(arg=None, autocolorscale=None, autocontour=None, coloraxis=None, colorbar=None, colorscale=None, connectgaps=None, contours=None, customdata=None, customdatasrc=None, dx=None, dy=None, fillcolor=None, hoverinfo=None, hoverinfosrc=None, hoverlabel=None, hoverongaps=None, hovertemplate=None, hovertemplatesrc=None, hovertext=None, hovertextsrc=None, ids=None, idssrc=None, legendgroup=None, line=None, meta=None, metasrc=None, name=None, ncontours=None, opacity=None, reversescale=None, showlegend=None, showscale=None, stream=None, text=None, textsrc=None, transpose=None, uid=None, uirevision=None, visible=None, x=None, x0=None, xaxis=None, xcalendar=None, xsrc=None, xtype=None, y=None, y0=None, yaxis=None, ycalendar=None, ysrc=None, ytype=None, z=None, zauto=None, zhoverformat=None, zmax=None, zmid=None, zmin=None, zsrc=None, **kwargs)<a class="headerlink" href="#plotly.graph_objects.Contour" title="Permalink to this definition">¶</a></dt>

<code class="sig-name descname">__init__</code>(arg=None, autocolorscale=None, autocontour=None, coloraxis=None, colorbar=None, colorscale=None, connectgaps=None, contours=None, customdata=None, customdatasrc=None, dx=None, dy=None, fillcolor=None, hoverinfo=None, hoverinfosrc=None, hoverlabel=None, hoverongaps=None, hovertemplate=None, hovertemplatesrc=None, hovertext=None, hovertextsrc=None, ids=None, idssrc=None, legendgroup=None, line=None, meta=None, metasrc=None, name=None, ncontours=None, opacity=None, reversescale=None, showlegend=None, showscale=None, stream=None, text=None, textsrc=None, transpose=None, uid=None, uirevision=None, visible=None, x=None, x0=None, xaxis=None, xcalendar=None, xsrc=None, xtype=None, y=None, y0=None, yaxis=None, ycalendar=None, ysrc=None, ytype=None, z=None, zauto=None, zhoverformat=None, zmax=None, zmid=None, zmin=None, zsrc=None, **kwargs)<a class="headerlink" href="#plotly.graph_objects.Contour.__init__" title="Permalink to this definition">¶</a></dt>

<dd>Construct a new Contour object

The data from which contour lines are computed is set in <code class="docutils literal notranslate">z</code>.

Data in <code class="docutils literal notranslate">z</code> must be a 2D list of numbers. Say that <code class="docutils literal notranslate">z</code> has N

rows and M columns, then by default, these N rows correspond to

N y coordinates (set in <code class="docutils literal notranslate">y</code> or auto-generated) and the M

columns correspond to M x coordinates (set in <code class="docutils literal notranslate">x</code> or auto-

generated). By setting <code class="docutils literal notranslate">transpose</code> to True, the above behavior

is flipped.

<dt class="field-odd">Parameters</dt>

<li>arg – dict of properties compatible with this constructor or

an instance of <a class="reference internal" href="#plotly.graph_objects.Contour" title="plotly.graph_objects.Contour"><code class="xref py py-class docutils literal notranslate">plotly.graph_objects.Contour</code></a></li>

<li>autocolorscale – Determines whether the colorscale is a default palette

(<code class="docutils literal notranslate">autocolorscale: true</code>) or the palette determined by

<code class="docutils literal notranslate">colorscale</code>. In case <code class="docutils literal notranslate">colorscale</code> is unspecified or

<code class="docutils literal notranslate">autocolorscale</code> is true, the default palette will be

chosen according to whether numbers in the <code class="docutils literal notranslate">color</code>

array are all positive, all negative or mixed.</li>

<li>autocontour – Determines whether or not the contour level attributes

are picked by an algorithm. If True, the number of

contour levels can be set in <code class="docutils literal notranslate">ncontours</code>. If False, set

the contour level attributes in <code class="docutils literal notranslate">contours</code>.</li>

<li>coloraxis – 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 <code class="docutils literal notranslate">layout.coloraxis</code>,

<code class="docutils literal notranslate">layout.coloraxis2</code>, etc. Note that multiple color

scales can be linked to the same color axis.</li>

<li>colorbar – <a class="reference internal" href="plotly.graph_objects.contour.html#plotly.graph_objects.contour.ColorBar" title="plotly.graph_objects.contour.ColorBar"><code class="xref py py-class docutils literal notranslate">plotly.graph_objects.contour.ColorBar</code></a> instance

or dict with compatible properties</li>

<li>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, <code class="docutils literal notranslate">[[0, 'rgb(0,0,255)'], [1,

'rgb(255,0,0)']]</code>. To control the bounds of the

colorscale in color space, use`zmin` and <code class="docutils literal notranslate">zmax</code>.

Alternatively, <code class="docutils literal notranslate">colorscale</code> may be a palette name

string of the following list: Greys,YlGnBu,Greens,YlOrR

d,Bluered,RdBu,Reds,Blues,Picnic,Rainbow,Portland,Jet,H

ot,Blackbody,Earth,Electric,Viridis,Cividis.</li>

<li>connectgaps – Determines whether or not gaps (i.e. {nan} or missing

values) in the <code class="docutils literal notranslate">z</code> data are filled in. It is defaulted

to true if <code class="docutils literal notranslate">z</code> is a one dimensional array otherwise it

is defaulted to false.</li>

<li>contours – <a class="reference internal" href="plotly.graph_objects.contour.html#plotly.graph_objects.contour.Contours" title="plotly.graph_objects.contour.Contours"><code class="xref py py-class docutils literal notranslate">plotly.graph_objects.contour.Contours</code></a> instance

or dict with compatible properties</li>

<li>customdata – 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</li>

<li>customdatasrc – Sets the source reference on Chart Studio Cloud for

customdata .</li>

<li>dx – Sets the x coordinate step. See <code class="docutils literal notranslate">x0</code> for more info.</li>

<li>dy – Sets the y coordinate step. See <code class="docutils literal notranslate">y0</code> for more info.</li>

<li>fillcolor – Sets the fill color if <code class="docutils literal notranslate">contours.type</code> is “constraint”.

Defaults to a half-transparent variant of the line

color, marker color, or marker line color, whichever is

available.</li>

<li>hoverinfo – Determines which trace information appear on hover. If

<code class="docutils literal notranslate">none</code> or <code class="docutils literal notranslate">skip</code> are set, no information is displayed

upon hovering. But, if <code class="docutils literal notranslate">none</code> is set, click and hover

events are still fired.</li>

<li>hoverinfosrc – Sets the source reference on Chart Studio Cloud for

hoverinfo .</li>

<li>hoverlabel – <a class="reference internal" href="plotly.graph_objects.contour.html#plotly.graph_objects.contour.Hoverlabel" title="plotly.graph_objects.contour.Hoverlabel"><code class="xref py py-class docutils literal notranslate">plotly.graph_objects.contour.Hoverlabel</code></a>

instance or dict with compatible properties</li>

<li>hoverongaps – Determines whether or not gaps (i.e. {nan} or missing

values) in the <code class="docutils literal notranslate">z</code> data have hover labels associated

with them.</li>

<li>hovertemplate – Template string used for rendering the information that

appear on hover box. Note that this will override

<code class="docutils literal notranslate">hoverinfo</code>. 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/d3-3.x-api-

reference/blob/master/Time-Formatting.md#format for

details on the date formatting syntax. The variables

available in <code class="docutils literal notranslate">hovertemplate</code> are the ones emitted as

event data described at this link

<a class="reference external" href="https://plotly.com/javascript/plotlyjs-events/#event">https://plotly.com/javascript/plotlyjs-events/#event</a>-

data. Additionally, every attributes that can be

specified per-point (the ones that are <code class="docutils literal notranslate">arrayOk: true</code>)

are available. Anything contained in tag <code class="docutils literal notranslate"><extra></code> is

displayed in the secondary box, for example

“<extra>{fullData.name}</extra>”. To hide the secondary

box completely, use an empty tag <code class="docutils literal notranslate"><extra></extra></code>.</li>

<li>hovertemplatesrc – Sets the source reference on Chart Studio Cloud for

hovertemplate .</li>

<li>hovertext – Same as <code class="docutils literal notranslate">text</code>.</li>

<li>hovertextsrc – Sets the source reference on Chart Studio Cloud for

hovertext .</li>

<li>ids – 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.</li>

<li>idssrc – Sets the source reference on Chart Studio Cloud for

ids .</li>

<li>legendgroup – Sets the legend group for this trace. Traces part of

the same legend group hide/show at the same time when

toggling legend items.</li>

<li>line – <a class="reference internal" href="plotly.graph_objects.contour.html#plotly.graph_objects.contour.Line" title="plotly.graph_objects.contour.Line"><code class="xref py py-class docutils literal notranslate">plotly.graph_objects.contour.Line</code></a> instance or

dict with compatible properties</li>

<li>meta – Assigns extra meta information associated with this

trace that can be used in various text attributes.

Attributes such as trace <code class="docutils literal notranslate">name</code>, graph, axis and

colorbar <code class="docutils literal notranslate">title.text</code>, annotation <code class="docutils literal notranslate">text</code>

<code class="docutils literal notranslate">rangeselector</code>, <code class="docutils literal notranslate">updatemenues</code> and <code class="docutils literal notranslate">sliders</code> <code class="docutils literal notranslate">label</code>

text all support <code class="docutils literal notranslate">meta</code>. To access the trace <code class="docutils literal notranslate">meta</code>

values in an attribute in the same trace, simply use

<code class="docutils literal notranslate">%{meta[i]}</code> where <code class="docutils literal notranslate">i</code> is the index or key of the

<code class="docutils literal notranslate">meta</code> item in question. To access trace <code class="docutils literal notranslate">meta</code> in

layout attributes, use <code class="docutils literal notranslate">%{data[n[.meta[i]}</code> where <code class="docutils literal notranslate">i</code>

is the index or key of the <code class="docutils literal notranslate">meta</code> and <code class="docutils literal notranslate">n</code> is the trace

index.</li>

<li>metasrc – Sets the source reference on Chart Studio Cloud for

meta .</li>

<li>name – Sets the trace name. The trace name appear as the

legend item and on hover.</li>

<li>ncontours – Sets the maximum number of contour levels. The actual

number of contours will be chosen automatically to be

less than or equal to the value of <code class="docutils literal notranslate">ncontours</code>. Has an

effect only if <code class="docutils literal notranslate">autocontour</code> is True or if

<code class="docutils literal notranslate">contours.size</code> is missing.</li>

<li>opacity – Sets the opacity of the trace.</li>

<li>reversescale – Reverses the color mapping if true. If true, <code class="docutils literal notranslate">zmin</code>

will correspond to the last color in the array and

<code class="docutils literal notranslate">zmax</code> will correspond to the first color.</li>

<li>showlegend – Determines whether or not an item corresponding to this

trace is shown in the legend.</li>

<li>showscale – Determines whether or not a colorbar is displayed for

this trace.</li>

<li>stream – <a class="reference internal" href="plotly.graph_objects.contour.html#plotly.graph_objects.contour.Stream" title="plotly.graph_objects.contour.Stream"><code class="xref py py-class docutils literal notranslate">plotly.graph_objects.contour.Stream</code></a> instance

or dict with compatible properties</li>

<li>text – Sets the text elements associated with each z value.</li>

<li>textsrc – Sets the source reference on Chart Studio Cloud for

text .</li>

<li>transpose – Transposes the z data.</li>

<li>uid – Assign an id to this trace, Use this to provide object

constancy between traces during animations and

transitions.</li>

<li>uirevision – Controls persistence of some user-driven changes to the

trace: <code class="docutils literal notranslate">constraintrange</code> in <code class="docutils literal notranslate">parcoords</code> traces, as well

as some <code class="docutils literal notranslate">editable: true</code> modifications such as <code class="docutils literal notranslate">name</code>

and <code class="docutils literal notranslate">colorbar.title</code>. Defaults to <code class="docutils literal notranslate">layout.uirevision</code>.

Note that other user-driven trace attribute changes are

controlled by <code class="docutils literal notranslate">layout</code> attributes: <code class="docutils literal notranslate">trace.visible</code> is

controlled by <code class="docutils literal notranslate">layout.legend.uirevision</code>,

<code class="docutils literal notranslate">selectedpoints</code> is controlled by

<code class="docutils literal notranslate">layout.selectionrevision</code>, and <code class="docutils literal notranslate">colorbar.(x|y)</code>

(accessible with <code class="docutils literal notranslate">config: {editable: true}</code>) is

controlled by <code class="docutils literal notranslate">layout.editrevision</code>. Trace changes are

tracked by <code class="docutils literal notranslate">uid</code>, which only falls back on trace index

if no <code class="docutils literal notranslate">uid</code> is provided. So if your app can add/remove

traces before the end of the <code class="docutils literal notranslate">data</code> array, such that

the same trace has a different index, you can still

preserve user-driven changes if you give each trace a

<code class="docutils literal notranslate">uid</code> that stays with it as it moves.</li>

<li>visible – 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).</li>

<li>x – Sets the x coordinates.</li>

<li>x0 – Alternate to <code class="docutils literal notranslate">x</code>. Builds a linear space of x

coordinates. Use with <code class="docutils literal notranslate">dx</code> where <code class="docutils literal notranslate">x0</code> is the starting

coordinate and <code class="docutils literal notranslate">dx</code> the step.</li>

<li>xaxis – Sets a reference between this trace’s x coordinates and

a 2D cartesian x axis. If “x” (the default value), the

x coordinates refer to <code class="docutils literal notranslate">layout.xaxis</code>. If “x2”, the x

coordinates refer to <code class="docutils literal notranslate">layout.xaxis2</code>, and so on.</li>

<li>xcalendar – Sets the calendar system to use with <code class="docutils literal notranslate">x</code> date data.</li>

<li>xsrc – Sets the source reference on Chart Studio Cloud for x

.</li>

<li>xtype – If “array”, the heatmap’s x coordinates are given by

“x” (the default behavior when <code class="docutils literal notranslate">x</code> is provided). If

“scaled”, the heatmap’s x coordinates are given by “x0”

and “dx” (the default behavior when <code class="docutils literal notranslate">x</code> is not

provided).</li>

<li>y – Sets the y coordinates.</li>

<li>y0 – Alternate to <code class="docutils literal notranslate">y</code>. Builds a linear space of y

coordinates. Use with <code class="docutils literal notranslate">dy</code> where <code class="docutils literal notranslate">y0</code> is the starting

coordinate and <code class="docutils literal notranslate">dy</code> the step.</li>

<li>yaxis – Sets a reference between this trace’s y coordinates and

a 2D cartesian y axis. If “y” (the default value), the

y coordinates refer to <code class="docutils literal notranslate">layout.yaxis</code>. If “y2”, the y

coordinates refer to <code class="docutils literal notranslate">layout.yaxis2</code>, and so on.</li>

<li>ycalendar – Sets the calendar system to use with <code class="docutils literal notranslate">y</code> date data.</li>

<li>ysrc – Sets the source reference on Chart Studio Cloud for y

.</li>

<li>ytype – If “array”, the heatmap’s y coordinates are given by

“y” (the default behavior when <code class="docutils literal notranslate">y</code> is provided) If

“scaled”, the heatmap’s y coordinates are given by “y0”

and “dy” (the default behavior when <code class="docutils literal notranslate">y</code> is not

provided)</li>

<li>zauto – Determines whether or not the color domain is computed

with respect to the input data (here in <code class="docutils literal notranslate">z</code>) or the

bounds set in <code class="docutils literal notranslate">zmin</code> and <code class="docutils literal notranslate">zmax</code> Defaults to <code class="docutils literal notranslate">false</code>

when <code class="docutils literal notranslate">zmin</code> and <code class="docutils literal notranslate">zmax</code> are set by the user.</li>

<li>zhoverformat – Sets the hover text formatting rule using d3 formatting

mini-languages which are very similar to those in

Python. See: <a class="reference external" href="https://github.com/d3/d3-3.x-api">https://github.com/d3/d3-3.x-api</a>-

reference/blob/master/Formatting.md#d3_format</li>

<li>zmax – Sets the upper bound of the color domain. Value should

have the same units as in <code class="docutils literal notranslate">z</code> and if set, <code class="docutils literal notranslate">zmin</code> must

be set as well.</li>

<li>zmid – Sets the mid-point of the color domain by scaling

<code class="docutils literal notranslate">zmin</code> and/or <code class="docutils literal notranslate">zmax</code> to be equidistant to this point.

Value should have the same units as in <code class="docutils literal notranslate">z</code>. Has no

effect when <code class="docutils literal notranslate">zauto</code> is <code class="docutils literal notranslate">false</code>.</li>

<li>zmin – Sets the lower bound of the color domain. Value should

have the same units as in <code class="docutils literal notranslate">z</code> and if set, <code class="docutils literal notranslate">zmax</code> must

be set as well.</li>

<li>zsrc – Sets the source reference on Chart Studio Cloud for z

.</li>

</ul>

</dd>

<dt class="field-even">Returns</dt>

</dd>

<dt class="field-odd">Return type</dt>

<dd class="field-odd"><a class="reference internal" href="plotly.graph_objects.html#plotly.graph_objects.Contour" title="plotly.graph_objects.Contour">Contour</a>

</dd>

</dl>

</dd></dl>

</div>

<h1><a class="reference internal" href="plotly.graph_objects.html#module-plotly.graph_objects" title="plotly.graph_objects"><code class="xref py py-mod docutils literal notranslate">plotly.graph_objects</code></a>.contour<a class="headerlink" href="#id1" title="Permalink to this headline">¶</a></h1>

</colgroup>

<tbody>

<tr class="row-odd"><td><a class="reference internal" href="#module-plotly.graph_objects.contour" title="plotly.graph_objects.contour"><code class="xref py py-obj docutils literal notranslate">plotly.graph_objects.contour</code></a></td>

</tr>

</tbody>

</table>

</div>

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