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I tried implementing pinch zooming for real time chart in the demo project(FIFO Performance Demo and ECG Monitor Demo) and found that it’s not possible.

I used the following code:

self.surface = [[SCIChartSurface alloc] initWithView: self.sciChartSurfaceView];
SCIPinchZoomModifier * pzm = [[SCIPinchZoomModifier alloc] init];
[pzm setModifierName:@”PinchZoom Modifier”];
self.surface.chartModifier = pzm;

If it is so, then how can I achieve it ?

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Hi, Chui

For the feature you should rewrite the example littile bit, because in the example we use autoRange in axis with value SCIAutoRange_Always.

I’ve attached file *.m in archive you can use the code to make pinch zoom works.

Best Regards, Mykola

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