MantisBT - VTK
View Issue Details

ID	Project	Category	View Status	Date Submitted	Last Update
0007536	VTK	(No Category)	public	2008-08-25 05:51	2012-12-12 12:15

Reporter	Peter Wainwright
Assigned To	David Gobbi
Priority	normal	Severity	minor	Reproducibility	always
Status	closed	Resolution	fixed
Platform		OS		OS Version
Product Version
Target Version		Fixed in Version	5.8.0
Project
Type

Summary	0007536: Picking a vtkImageActor does not work properly
Description	This is done in vtkPicker::Pick by constructing a ray in data space and seeing whether it intersects the plane of the image within the bounding rectangle. The algorithm for the point of intersection is wrong. Having obtained the parameter t (the relative position of the intersection along the ray), the subsequent calculation uses (t) in place of (1.0-t) and vice versa. Also, the calculation of t uses p2World[i] where as far as I can tell it should have p2Mapper[i]. I have attached a patch for these issues.
Steps To Reproduce
Additional Information
Tags	No tags attached.
Relationships
Attached Files	VTK-20080821-pick.patch (1,784) 2008-08-25 05:51 https://www.vtk.org/Bug/file/6680/VTK-20080821-pick.patch

Issue History
Date Modified	Username	Field	Change
2008-08-25 05:51	Peter Wainwright	New Issue
2008-08-25 05:51	Peter Wainwright	File Added: VTK-20080821-pick.patch
2011-04-16 19:18	David Gobbi	Assigned To	=> David Gobbi
2011-04-16 19:18	David Gobbi	Status	backlog => tabled
2011-04-16 19:19	David Gobbi	Note Added: 0026199
2011-04-16 19:19	David Gobbi	Status	tabled => @80@
2011-04-16 19:19	David Gobbi	Resolution	open => fixed
2011-06-16 13:11	Zack Galbreath	Category	=> (No Category)
2012-12-12 12:15	David Gobbi	Status	customer review => closed
2012-12-12 12:15	David Gobbi	Fixed in Version	=> 5.8.0

Notes