# Contour

Contour plots are a way to show a three-dimensional surface on a two-dimensional plane.

## Set up

2. Define the X- and Y-Axis to plot.

3. Shading is defined by the Z-axis and the color gradient. Use the Tick interval to set the gap in the number of display labels for the z-axis.

## Basics

Data Source
Data sources
Show Scale Bar
Display scale for the response (contour) variable, Z-axis.
Type

Select between contour or heatmap

## X-, Y- and Z-Axis

Column
Select data column from Data Source.
Type
Select axis type: linear, category or date; category and date are only available for heatmap Type contour charts.
Use Range
Min
Max
Set axis range values, axis will default to data range if not set.

Z-axis

Determines the line interpolation and contour colors as defined by range Min and Max, or default data minimum and maximum.

### Title

Label
Label Size
Give axis a name and set the font size.

## Layout

Background
Set color background of chart
Top
Bottom
Left
Right
Set chart margins (pixels)
Set central chart image padding (pixels)

## Contour Palette

Sets the number of colors used in the range; range values will be spread evenly across the number of defined colors.

Show Annotation
Tick Interval
Define tick label frequency on gradient bar.

## Tooltip

Show Tooltip
Default to display of x-, y- and z-axis (shade) values; defined in Custom Tooltip.
Custom Tooltip
Create a custom tooltip; default sample tooltip used by Show Tooltip.

## Image

Source
Replace map with an image sourced from an URL. Can be a view state parameter

## Style, Margins, Format

Line Smoothing
Determines line smoothing; a value of zero reflects no smoothing, 100 is maximum smoothing.

Style for common settings