Axis and Coordinate system Settings

Axis Settings

These fields are shown directly in the axis panel — more settings can be found in the section panels, which are covered in the Sections documentation.

ID

A text field that names the axis panel itself. The Id does not appear in the chart — it's used as the panel's title in the interface and as a reference key if the axis needs to be referenced from elsewhere in the settings.

Type

Pick the axis scale type:

• Value — continuous numbers with automatic ticks.
• Category — discrete labels; you supply the category list elsewhere.
• Time — continuous dates/times with smart formatting.
• Log — logarithmic scale for positive numbers only.

Match the type to your data so ticks and formatting behave correctly.

Name

Set the display label for the axis. This name appears near the axis itself. Use a human-readable name that describes what the axis represents.

Name Location

Choose where the axis name is drawn relative to the axis line (Start, Center, or End). Use this to keep the name clear of tick labels; for example, move the name to the start of a vertical axis when it collides with the top ticks.

Name Rotate

Rotates the axis name label in degrees. Use the up and down arrows to rotate in steps of 45 degrees, or type a precise value directly for single-degree precision. This is useful when the axis name overlaps with tick labels or other chart elements — for example, rotating a long horizontal axis name to 45° or 90° can keep it readable without taking up extra space.

Name Gap

Controls the space between the axis name and the axis line in pixels. Increase this value when the name label is too close to the axis line or tick labels; decrease it to bring the name closer to the axis for a tighter layout.

Tick Count

An approximate number of ticks used as a guideline for how many tick marks appear on the axis. The chart will try to get close to this number while keeping ticks at clean, readable intervals. Use a higher number for more granular grid lines, a lower number for a cleaner, less cluttered look. Cannot be used together with Interval.

Interval

The step/gap between consecutive tick marks on the axis. For category axes, set a number to show every n-th label (1 shows all). For value/time axes, set a number to define the interval between ticks. Leave automatic to let the chart compute evenly spaced ticks. Cannot be used together with Tick Count.

Minimum Value

Override the automatically calculated minimum value. Enter a number to set the floor to your dataset's smallest value. For log axes, only enter positive values. Clearing the field returns control to automatic scaling.

Maximum Value

Override the automatically calculated maximum value. Enter a number to set the ceiling to your dataset's largest value. For log axes, only enter positive values. Clearing the field returns control to automatic scaling.

Grid Index

Select which Cartesian grid this axis belongs to when the chart has multiple grids. Leave the default for single-grid charts; change it only when you intentionally add an extra grid layout. Grid Index is only available for horizontal and vertical axes (Cartesian coordinate system).

Polar Index

Available for radius axes and angle axes only. Select which polar coordinate system this axis uses when multiple polar systems exist. Radius axes and angle axes must point to the same polar index as the series they control.

Start Angle

Available for angle axes only. The angle (in degrees) where the angular axis begins. Zero degrees is at the 3 o'clock position (right), increasing counterclockwise by default. Use this to reorient radial charts — for example, setting the start angle to 90° makes the axis begin at the top. The up and down arrow buttons step in increments of 45 degrees, but you can type any number directly for precise control.

End Angle

Available for angle axes only. The angle (in degrees) where the angular axis ends. Together with Start Angle, this defines the visible arc of the angular axis — for example, creating a half-circle or partial arc instead of a full 360° rotation. This is useful when you want the angular axis to cover only a specific angular range. The up and down arrow buttons step in increments of 45 degrees, but you can type any number directly for precise control.

Position

Place the axis on a specific side of its grid: top/bottom for horizontal axes, left/right for vertical axes. Choose the side that keeps labels readable and leaves room for other elements.

Offset

Push the axis line away from its default side by a pixel offset. Useful to stagger multiple axes on the same side without overlapping labels or lines.

Show

When enabled, the axis is displayed on the chart. When disabled, the axis is hidden. The axis is displayed by default.

Name Move Overlap

When enabled, the axis name label will automatically move to avoid overlapping with tick labels. This is useful when the axis name is long or when tick labels are dense, ensuring that both remain readable.

Axis Padding

The padding on both sides of the axis. Enabled by default, in which case axis ticks serve only as separation lines — labels and data appear only in the center part between two axis ticks, known as the band. Disable this to have labels and data aligned directly with the tick marks.

Scale

Only effective on value axes (ignored when Minimum Value or Maximum Value is set). When enabled, the axis automatically scales to fit the data range without forcing zero to be included. This is particularly useful in scatter charts, where both value axes can be scaled to focus on the data cluster rather than stretching to zero.

Inverse

When enabled, the axis direction is inverted — values run from high to low (instead of low to high). Use this to flip the axis orientation, for example to make a vertical axis increase downward or a horizontal axis increase leftward.

Align Ticks

When enabled, tick marks are automatically aligned across multiple axes of the same position. Only available for axes of type Value and Log. This is useful when you have multiple horizontal X-axes and want their grid lines to line up neatly for a cleaner comparison.

Coordinate System Settings

These settings are available when a coordinate system (polar or radar) is added to the chart. They appear in the panel for that coordinate system.

ID

Assign a unique ID so series can target this coordinate system explicitly. This matters when you have multiple polar or radar systems in one chart.

Outer Radius

Set the size of the polar or radar grid. You can use pixels (e.g., 200) or percentages of the container (e.g., 70%). Larger radii expand the plot area; smaller radii leave room for legends or annotations around it.

Indicators

Define each radar indicator: a name (axis label) and its range (max, optional min). These indicators become the spokes of the radar; keep their maxima comparable so the shape reflects relative differences correctly.