If *array*, the heatmap's x coordinates are given by *x* (the default behavior when `x` is provided). If *scaled*, the heatmap's x coordinates are given by *x0* and *dx* (the default behavior when `x` is not provided).

If *array*, the heatmap's y coordinates are given by *y* (the default behavior when `y` is provided) If *scaled*, the heatmap's y coordinates are given by *y0* and *dy* (the default behavior when `y` is not provided)

Sets the hover text formatting rulefor `z`  using d3 formatting mini-languages which are very similar to those in Python. For numbers, see: https://github.com/d3/d3-format/tree/v1.4.5#d3-format.By default the values are formatted using generic number format.

The data from which contour lines are computed is set in `z`. Data in `z` must be a {2D array} of numbers. Say that `z` has N rows and M columns, then by default, these N rows correspond to N y coordinates (set in `y` or auto-generated) and the M columns correspond to M x coordinates (set in `x` or auto-generated). By setting `transpose` to *true*, the above behavior is flipped.

The `carpet` of the carpet axes on which this contour trace lies

Determines the coloring method showing the contour values. If *fill*, coloring is done evenly between each contour level If *lines*, coloring is done on the contour lines. If *none*, no coloring is applied on this trace.

Plots contours on either the first carpet axis or the carpet axis with a matching `carpet` attribute. Data `z` is interpreted as matching that of the corresponding carpet axis.

Determines if the densitymapbox trace will be inserted before the layer with the specified ID. By default, densitymapbox traces are placed below the first layer of type symbol If set to '', the layer will be inserted above every existing layer.

Sets hover text elements associated with each (lon,lat) pair If a single string, the same string appears over all the data points. If an array of string, the items are mapped in order to the this trace's (lon,lat) coordinates. To be seen, trace `hoverinfo` must contain a *text* flag.