CODEWITHSUNDEEP
objective-ccocoacore-plot
Ivan Mir
Ivan Mir

Reputation: 1239

Core Plot: how to remove CPTGraph padding?

I can't get rid of the gaps between CPTGraph border and CPTPlotAreaFrame inside.

The dark gray color on this example is CPTGraph and the light gray is CPTPlotAreaFrame. Both of them have frame size of { 150, 150 }.

enter image description here

What is the property that controls CPTGraph padding? CPTPlotAreaFrame's paddingBottom and others control internal padding of CPTPlotAreaFrame.

Here's the code.

CPTGraphHostingView *hostingView = [[CPTGraphHostingView alloc] initWithFrame:self.view.bounds];
[self.view addSubview:hostingView];

CPTXYGraph *graph = [[CPTXYGraph alloc] initWithFrame:NSRectToCGRect(hostingView.bounds)];
graph.fill = [CPTFill fillWithColor:[CPTColor grayColor]];
graph.axisSet = nil;
hostingView.hostedGraph = graph;

// both of these are { 150.0, 150.0 }
NSLog(@"%f %f", graph.frame.size.width, graph.frame.size.height);
NSLog(@"%f %f", graph.plotAreaFrame.frame.size.width, graph.plotAreaFrame.frame.size.height);

graph.plotAreaFrame.fill = [CPTFill fillWithColor:[CPTColor lightGrayColor]];
graph.plotAreaFrame.masksToBorder = NO;
graph.plotAreaFrame.borderLineStyle = nil;

CPTPieChart *piePlot = [[CPTPieChart alloc] init];
piePlot.dataSource = self.viewModel;
piePlot.pieRadius = MIN( CPTFloat(0.7) * (hostingView.frame.size.height - CPTFloat(2.0) * graph.paddingLeft) / CPTFloat(2.0),
                         CPTFloat(0.7) * (hostingView.frame.size.width - CPTFloat(2.0) * graph.paddingTop) / CPTFloat(2.0) );
piePlot.identifier = self.title;
piePlot.startAngle = CPTFloat(M_PI_4);
piePlot.sliceDirection = CPTPieDirectionCounterClockwise;

piePlot.labelRotationRelativeToRadius = YES;
piePlot.labelRotation = CPTFloat(-M_PI_2);
piePlot.labelOffset = -50.0;

piePlot.delegate = self;
[graph addPlot:piePlot];

Upvotes: 0

Views: 153

Answers (1)

Eric Skroch
Eric Skroch

Reputation: 27381

Set the padding on the graph itself. A CPTGraph starts with 20 pixels of padding on each side.

graph.paddingLeft = 0.0;
graph.paddingTop = 0.0;
graph.paddingRight = 0.0;
graph.paddingBottom = 0.0;

Upvotes: 1

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