Description: Spline interpolite value curve. You can set up its tan value manualy,default is 0,you can set it as 1 if you need. Support Bar chartview too. It is implemented as a view, so you can put it in a xib too. You just set up its x-axis values and the points you want to show. x-axis values amount can be different from points amount.
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File list (Check if you may need any files):
NTChartView.h
__MACOSX
........\._NTChartView.h
NTChartView.m
__MACOSX\._NTChartView.m
Spline.c
__MACOSX\._Spline.c
Spline.h
__MACOSX\._Spline.h