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ensure histograms of integer data have equal bin width

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Lines changed: 6 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -70,7 +70,12 @@ def draw(self) -> None:`
`70`	`70`
`71`	`71`	`# Important to calculate bins after slicing 3D data, to avoid reading`
`72`	`72`	`# whole cube into memory.`
`73`		`-bins=np.linspace(np.min(data),np.max(data),100,dtype=data.dtype)`
	`73`	`+ifdata.dtype.kind=="i":`
	`74`	`+# Make sure integer data types have integer sized bins`
	`75`	`+step= (np.max(data)-np.min(data))//100`
	`76`	`+bins=np.arange(np.min(data),np.max(data)+step,step)`
	`77`	`+else:`
	`78`	`+bins=np.linspace(np.min(data),np.max(data),100)`
`74`	`79`
`75`	`80`	`iflayer.rgb:`
`76`	`81`	`# Histogram RGB channels independently`

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