The legends of a scatter plot, in a column at the right of the plot
A scatter plot has up to four legends, from the top:
- The series, with the symbol and the color of each one.
- The colors: each category of the color, with its color. When the symbol and the color of each point take the same category, the item also shows the symbol, and the chart has no legend of the symbols.
- The scale of a color from a number, with its highest and its lowest value.
- The symbols: each category of the symbol, with its symbol.
- The sizes: three marks of round sizes, with their values.
The options color_label, symbol_label and size_label give a title
to each legend. layout/1 makes the rows, place/2 puts them at the
right of the box of the plot, and render/1 draws them.
Summary
Functions
Make the rows of the legends from the assigns of a scatter plot
Put the rows of the legends at the right of the SVG, from the top of the box of the plot
Draw the rows of the legends with the category of the assigns
Return the width that the legends take at the right of the SVG, with a gap before them
Functions
Make the rows of the legends from the assigns of a scatter plot
Each row has a dy from the top of the legends. An item of a category of
the color has the key category, so it goes into the group of its
category.
Put the rows of the legends at the right of the SVG, from the top of the box of the plot
@spec render(map()) :: Phoenix.HTML.safe()
Draw the rows of the legends with the category of the assigns
The key category is nil for the rows outside the groups, or the name of
a category of the color for its item.
Return the width that the legends take at the right of the SVG, with a gap before them
iex> Expresso.Element.Chart.Scatter.Legend.width(%{rows: [], width: 0})
0