Module: LocusZoom_DataLayers

An element display status to set/unset/toggle

Whether an element status should be exclusive (eg only allow one point to be selected at a time)

For links, the URL to visit when clicking

For links, the target attribute (eg, name of a window or tab in which to open this link)

For operations of type "fetch", this is required. By default, it will fill in any items provided in "namespace" (everything specified in namespace triggers an adapter/network request) A namespace should be manually specified in this array when there are dependencies (one request depends on the content of what is returned from another namespace). Eg, for ld to be fetched after association data, specify "ld(assoc)". Most LocusZoom examples fill in all items, in order to make the examples more clear.

The name of this operation. This only needs to be specified if a data layer performs several operations, and needs to refer to the result of a prior operation. Eg, if the retrieved data is combined via several left joins in series: name: "assoc_plus_ld" -> feeds into {name: "final", requires: ["assoc_plus_ld"]}

The names of each adapter required. This does not need to specify dependencies, just the names of other namespaces (or data operations) whose results must be available before a join can be performed

Any user-defined parameters that should be passed to the particular join function (see: module:LocusZoom_DataFunctions for details). For example, this could specify the left and right key fields for a join function, based on the expected field names used in this data layer: params: ['assoc:position', 'ld:position2'] Separate from this section, data functions will also receive a copy of "plot.state" automatically.

The name of a field found within each datapoint datum

The name of a comparison function to use when deciding if the field satisfies this filter

The target value to compare to

This is optional (e.g. a legend element could just be a textual label). Supported values are the standard d3 3.x symbol types (i.e. "circle", "cross", "diamond", "square", "triangle-down", and "triangle-up"), as well as "rect" for an arbitrary square/rectangle or "line" for a path. A special "ribbon" option can be use to draw a series of explicit, numeric-only color stops (a row of colored squares, such as to indicate LD)

The point color (hexadecimal, rgb, etc)

The human-readable label of the legend item

The name of a CSS class used to style the point in the legend

The point area for each element (if the shape is a d3 symbol). Eg, for a 40 px area, a circle would be ~7..14 px in diameter.

Length (in pixels) for the path rendered as the graphical portion of the legend element if the value of the shape parameter is "line".

Width (in pixels) for the rect rendered as the graphical portion of the legend element if the value of the shape parameter is "rect" or "ribbon".

Height (in pixels) for the rect rendered as the graphical portion of the legend element if the value of the shape parameter is "rect" or "ribbon".

For shape "ribbon", specifies whether to draw the ribbon vertically or horizontally.

For shape "ribbon", specifies the tick labels that correspond to each colorstop value. Tick labels appear at all box edges: this array should have 1 more item than the number of colorstops.

For shape "ribbon", specifies the colors of each box in the row of colored squares. There should be 1 fewer item in color_stops than the number of tick labels.

CSS styles object to be applied to the DOM element representing the graphical portion of the legend element.

The name of the field to use in the scale function. If omitted, all fields for the given datum element will be passed to the scale function.

The name of a scale function that will be run on each individual datum

A set of parameters that configure the desired scale function (options vary by function)