iOS Charting Documentation - SciChart iOS Charts SDK v3.x

Axis 3D APIs

There are several axis types in SciChart iOS 3D. The ISCIAxis3D are the logical representation of the XZ, ZY, YX planes in the Axis Cube.

Axes are required to measure the ISCIRenderableSeries3D, for instance, an axis is responsible for the transformation between data-values (provided by your code) and world coordinates (X, Y, Z values in 3D Space).

NOTE: It is necessary to declare all X, Y and Z Axes in code before the 3D chart will draw. They are accessible via the following properties:

A list of the 3D axis types are found below:

All the 3D axis types in SciChart conforms to the ISCIAxis3D protocol.

SCINumericAxis3D

The SCINumericAxis3D is a Value-Axis and is suitable when the data type on that axis is numeric (e.g. double, int, long, float, short). It is not suitable for non-numeric data types such as NSDate.

To create and configure a SCINumericAxis3D, use the following code:

id<ISCIAxis3D> axis = [SCINumericAxis3D new]; axis.growBy = [[SCIDoubleRange alloc] initWithMin:0.1 max:0.1]; axis.visibleRange = [[SCIDoubleRange alloc] initWithMin:-7 max:7];
let axis = SCINumericAxis3D() axis.growBy = SCIDoubleRange(min: 0.1, max: 0.1) axis.visibleRange = SCIDoubleRange(min: -7, max: 7)
var axis = new SCINumericAxis3D { GrowBy = new SCIDoubleRange(0.1, 0.1), VisibleRange = new SCIDoubleRange(-7, 7) };

SCILogarithmicNumericAxis3D

The SCILogarithmicNumericAxis3D is a Value axis which uses non-linear (logarithmic) scale. It is suitable when the data is numeric (e.g. double, int, long, float, short). It is not suitable for non-numeric data types such as NSDate.

NOTE: The SCILogarithmicNumericAxis3D cannot render data values less than or equal to zero. Please ensure you append valid data to your DataSeries.

To create and configure a SCILogarithmicNumericAxis3D, use the following code:

SCILogarithmicNumericAxis3D *axis = [SCILogarithmicNumericAxis3D new]; axis.growBy = [[SCIDoubleRange alloc] initWithMin:0.1 max:0.1]; axis.visibleRange = [[SCIDoubleRange alloc] initWithMin:0.1 max:1000.0]; // Specifies how labels appear on the axis axis.scientificNotation = SCIScientificNotation_LogarithmicBase; axis.textFormatting = @“#.#E+0”; // Specifies the logarithm base for the logarithmic scale of the axis axis.logarithmicBase = 10.0;
let axis = SCILogarithmicNumericAxis3D() axis.growBy = SCIDoubleRange(min: 0.1, max: 0.1) axis.visibleRange = SCIDoubleRange(min: 0.1, max: 1000.0) // Specifies how labels appear on the axis axis.scientificNotation = .logarithmicBase axis.textFormatting = “#.#E+0” // Specifies the logarithm base for the logarithmic scale of the axis axis.logarithmicBase = 10.0
var axis = new SCILogarithmicNumericAxis3D { GrowBy = new SCIDoubleRange(0.1, 0.1), VisibleRange = new SCIDoubleRange(0.1, 1000.0), // Specifies how labels appear on the axis ScientificNotation = SCIScientificNotation.LogarithmicBase, TextFormatting = “#.#E+0”, // Specifies the logarithm base for the logarithmic scale of the axis LogarithmicBase = 10.0 };

SCIDateAxis3D

The SCIDateAxis is a Value axis, which is designed to work with dates only.

NOTE: The SCIDateAxis3D is not suitable for numeric data types.

To create and configure a SCIDateAxis3D, use the following code:

id<ISCIAxis> axis = [SCIDateAxis3D new]; axis.autoRange = SCIAutoRange_Always; axis.growBy = [[SCIDoubleRange alloc] initWithMin:0.1 max:0.1]; axis.visibleRange = [[SCIDoubleRange alloc] initWithMin:dateMin max:dateMax];
let axis = SCIDateAxis3D() axis.autoRange = .always; axis.growBy = SCIDoubleRange(min: 0.1, max: 0.1) axis.visibleRange = SCIDoubleRange(min: dateMin, max: dateMax)
var axis = new SCIDateAxis3D { AutoRange = SCIAutoRange.Always, GrowBy = new SCIDoubleRange(0.1, 0.1), VisibleRange = new SCIDoubleRange(dateMin, dateMax) };

NOTE: To learn more about how to convert values from Dates to Indexes and back, please refer to the Convert Pixels to Data Coordinates article.

See the Axis 3D Types in action

Please take a look at the examples from the iOS Examples Suite listed below to see these axis 3D types in action: