RubberBandXyZoomModifier
SciChart for Android provides zooming via drag rectangle on a chart with the RubberBandXyZoomModifier.
Besides common features which are inherited from the ChartModifierBase class, the RubberBandXyZoomModifier defines a bunch of behavioral traits itself. Please find these in the table below:
Feature | Description |
---|---|
isXAxisOnly | Allows to restrict zooming behavior to the X Axis only. |
isAnimated | Allows to switch on / off the animation on zoom. |
minDragSensitivity | Allows to specify the drag rectangle's minimal possible size. Rectangles smaller than this size in the diagonal will be ignored when zooming. |
zoomExtentsY | Determines whether to perform zoom to extents on the Y Axis on the each zoom operation or not. |
rubberBandStrokeStyle | Allows to assign an PenStyle object to the outline of the drag rectangle. Please refer to the PenStyle, BrushStyle and FontStyle article for more details. |
rubberBandFillStyle | Allows to assign an BrushStyle object to fill the drag rectangle. Please refer to the PenStyle, BrushStyle and FontStyle article for more details. |
Adding a RubberBandXyZoomModifier to a Chart
Any Chart Modifier can be added to a SciChartSurface via the chartModifiers property and RubberBandXyZoomModifier is no difference:
// Assume a surface has been created and configured somewhere
// Create a RubberBandXyZoomModifier
RubberBandXyZoomModifier rubberBandZoomModifier = new RubberBandXyZoomModifier();
rubberBandZoomModifier.setIsXAxisOnly(true);
rubberBandZoomModifier.setZoomExtentsY(true);
rubberBandZoomModifier.setIsAnimated(true);
// Apply a BrushStyle for fill
BrushStyle brushStyle = new SolidBrushStyle(0x33999999);
rubberBandZoomModifier.setRubberBandFillStyle(brushStyle);
// Apply a PenStyle for stroke
PenStyle strokeStyle = new SolidPenStyle(0x77999999, true, 1f, null);
rubberBandZoomModifier.setRubberBandStrokeStyle(strokeStyle);
// Add the modifier to the surface
surface.getChartModifiers().add(rubberBandZoomModifier);
Note
To learn more about features available, please visit the Chart Modifier APIs article.