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<h1>vtkAbstractPicker Class Reference</h1><!-- doxytag: class="vtkAbstractPicker" --><!-- doxytag: inherits="vtkObject" --><code>#include <<a class="el" href="a05149.html">vtkAbstractPicker.h</a>></code>
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Inheritance diagram for vtkAbstractPicker:</div>
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<p><center><img src="a07773.png" border="0" usemap="#a07774" alt="Inheritance graph"></center>
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Collaboration diagram for vtkAbstractPicker:</div>
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<a href="a07777.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
define API for picking subclasses
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<a class="el" href="a00086.html" title="define API for picking subclasses">vtkAbstractPicker</a> is an abstract superclass that defines a minimal API for its concrete subclasses. The minimum functionality of a picker is to return the x-y-z global coordinate position of a pick (the pick itself is defined in display coordinates).<p>
The API to this class is to invoke the <a class="el" href="a00086.html#2a0b3479c5e079d2a22fa59e7af828e7">Pick()</a> method with a selection point (in display coordinates - pixels) and a renderer. Then get the resulting pick position in global coordinates with the <a class="el" href="a00086.html#4eee282567ef4c95eb8e7a57a45cfccc">GetPickPosition()</a> method.<p>
<a class="el" href="a01212.html" title="superclass for 3D geometric pickers (uses ray cast)">vtkPicker</a> fires events during the picking process. These events are StartPickEvent, PickEvent, and EndPickEvent which are invoked prior to picking, when something is picked, and after all picking candidates have been tested. Note that during the pick process the PickEvent of <a class="el" href="a01317.html" title="abstract superclass for all actors, volumes and annotations">vtkProp</a> (and its subclasses such as <a class="el" href="a00092.html" title="represents an object (geometry & properties) in a rendered scene">vtkActor</a>) is fired prior to the PickEvent of <a class="el" href="a01212.html" title="superclass for 3D geometric pickers (uses ray cast)">vtkPicker</a>.<p>
<dl class="warning" compact><dt><b>Warning:</b></dt><dd><a class="el" href="a00086.html" title="define API for picking subclasses">vtkAbstractPicker</a> and its subclasses will not pick props that are "unpickable" (see <a class="el" href="a01317.html" title="abstract superclass for all actors, volumes and annotations">vtkProp</a>) or are fully transparent (if transparency is a property of the <a class="el" href="a01317.html" title="abstract superclass for all actors, volumes and annotations">vtkProp</a>).<p>
There are two classes of pickers: those that pick using geometric methods (typically a ray cast); and those that use rendering hardware. Geometric methods return more information but are slower. Hardware methods are much faster and return minimal information. Examples of geometric pickers include <a class="el" href="a01212.html" title="superclass for 3D geometric pickers (uses ray cast)">vtkPicker</a>, <a class="el" href="a00251.html" title="select a cell by shooting a ray into graphics window">vtkCellPicker</a>, and <a class="el" href="a01248.html" title="select a point by shooting a ray into a graphics window">vtkPointPicker</a>. Examples of hardware pickers include <a class="el" href="a01890.html" title="find world x,y,z corresponding to display x,y,z">vtkWorldPointPicker</a> and <a class="el" href="a01324.html" title="pick an actor/prop using graphics hardware">vtkPropPicker</a>.</dd></dl>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="a01324.html" title="pick an actor/prop using graphics hardware">vtkPropPicker</a> uses hardware acceleration to pick an instance of <a class="el" href="a01317.html" title="abstract superclass for all actors, volumes and annotations">vtkProp</a>. (This means that 2D and 3D props can be picked, and it's relatively fast.) If you need to pick cells or points, you might wish to use <a class="el" href="a00251.html" title="select a cell by shooting a ray into graphics window">vtkCellPicker</a> or <a class="el" href="a01248.html" title="select a point by shooting a ray into a graphics window">vtkPointPicker</a>. <a class="el" href="a01890.html" title="find world x,y,z corresponding to display x,y,z">vtkWorldPointPicker</a> is the fastest picker, returning an x-y-z coordinate value using the hardware z-buffer. <a class="el" href="a01212.html" title="superclass for 3D geometric pickers (uses ray cast)">vtkPicker</a> can be used to pick the bounding box of 3D props. </dd></dl>
<p>Definition at line <a class="el" href="a05149.html#l00066">66</a> of file <a class="el" href="a05149.html">vtkAbstractPicker.h</a>.</p>
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<tr><td colspan="2"><br><h2>Public Types</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef <a class="el" href="a01084.html">vtkObject</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#da5971dd0e28a38064b2cc5617370cf4">Superclass</a></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#b67b5da4ecc1221e694cad85d1748911">GetClassName</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#d68cc578f58c89f953ba8d80d751f49d">IsA</a> (const char *type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#c6c46a92f2cfd976f27431f2865a84c7">PrintSelf</a> (ostream &os, <a class="el" href="a00869.html">vtkIndent</a> indent)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#b4ba05892738b22fe14fa05f344b5dc1">InitializePickList</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#b10d0147b3cfb89edbb5e47ceed75ada">AddPickList</a> (<a class="el" href="a01317.html">vtkProp</a> *)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#8118c0b642a4061424dca368f8b182e5">DeletePickList</a> (<a class="el" href="a01317.html">vtkProp</a> *)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a01321.html">vtkPropCollection</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#ca44b4895bdbdd6834789febdeeadbfd">GetPickList</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="a01480.html">vtkRenderer</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#60de8395e65dd69930da6a14a6d1bb39">GetRenderer</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual double * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#5582e96205b5c38244be7d22c2edac36">GetSelectionPoint</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#6b492f0b7a4da345b0661320545d8340">GetSelectionPoint</a> (double data[3])</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual double * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#4eee282567ef4c95eb8e7a57a45cfccc">GetPickPosition</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#cfb108eb053147dd25ed3b951489949b">GetPickPosition</a> (double data[3])</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#2a0b3479c5e079d2a22fa59e7af828e7">Pick</a> (double selectionX, double selectionY, double selectionZ, <a class="el" href="a01480.html">vtkRenderer</a> *renderer)=0</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#d63fe85335f93d041358eec7538c940c">Pick</a> (double selectionPt[3], <a class="el" href="a01480.html">vtkRenderer</a> *ren)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#9632664952293feb07a881554e2c8d99">SetPickFromList</a> (int)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#6bffee19add92c9a9c2ade53a1e0a36a">GetPickFromList</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#2987fe011070b71a3439a168727cb40a">PickFromListOn</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#534dd05dd55374822b8340ba8b70fa7c">PickFromListOff</a> ()</td></tr>
<tr><td colspan="2"><br><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#056f9c961407be2172605a8bcc766945">IsTypeOf</a> (const char *type)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static <a class="el" href="a00086.html">vtkAbstractPicker</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#3d2cd6833ee7eb6e9cf472163263b929">SafeDownCast</a> (<a class="el" href="a01084.html">vtkObject</a> *o)</td></tr>
<tr><td colspan="2"><br><h2>Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#7e94fb7be87261d71bdb023b4a5537f2">vtkAbstractPicker</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#425e3c400f684ab31c2f5fe569d40950">~vtkAbstractPicker</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#3ec0c3d41a652f30d966efa79a4952fb">Initialize</a> ()</td></tr>
<tr><td colspan="2"><br><h2>Protected Attributes</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a01480.html">vtkRenderer</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#07263b8d70850eee6a4ef6c9c57286b7">Renderer</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#451dd4decb9d42c4784491eeed58c63e">SelectionPoint</a> [3]</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#b6c64a7b863421550f59e25a30d326fb">PickPosition</a> [3]</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#06c12e7ccb45024560ba36d6516d090b">PickFromList</a></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a01321.html">vtkPropCollection</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a00086.html#e264a3f7d8d77f1b507ec003b19020a7">PickList</a></td></tr>
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<hr><h2>Member Typedef Documentation</h2>
<a class="anchor" name="da5971dd0e28a38064b2cc5617370cf4"></a><!-- doxytag: member="vtkAbstractPicker::Superclass" ref="da5971dd0e28a38064b2cc5617370cf4" args="" -->
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<td class="memname">typedef <a class="el" href="a01084.html">vtkObject</a> <a class="el" href="a01084.html">vtkAbstractPicker::Superclass</a> </td>
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<p>Reimplemented from <a class="el" href="a01084.html#11429dee69f4b562e03e07b453dae9b5">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a00088.html#2874fa0c5dd1065ffda3c490e0df6e62">vtkAbstractPropPicker</a>, <a class="el" href="a00123.html#cd795919f15ed8d41f2e967ccfc281a9">vtkAreaPicker</a>, <a class="el" href="a00251.html#c8fc8596caaf6967fe722eebe93e151e">vtkCellPicker</a>, <a class="el" href="a01212.html#4b2b9aabb9a13751cff9ab6f4889d781">vtkPicker</a>, <a class="el" href="a01248.html#dc91ef11e99a4fbec73378d42bfbd0da">vtkPointPicker</a>, <a class="el" href="a01324.html#6a9a5eb0eb70c72c4b0fbfd1ba378341">vtkPropPicker</a>, <a class="el" href="a01479.html#9d15282ae56a8682c37424b943810442">vtkRenderedAreaPicker</a>, and <a class="el" href="a01890.html#988c89293d7962fee85462a55a892f06">vtkWorldPointPicker</a>.</p>
<p>Definition at line <a class="el" href="a05149.html#l00069">69</a> of file <a class="el" href="a05149.html">vtkAbstractPicker.h</a>.</p>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="7e94fb7be87261d71bdb023b4a5537f2"></a><!-- doxytag: member="vtkAbstractPicker::vtkAbstractPicker" ref="7e94fb7be87261d71bdb023b4a5537f2" args="()" -->
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<td class="memname">vtkAbstractPicker::vtkAbstractPicker </td>
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<td><code> [protected]</code></td>
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<a class="anchor" name="425e3c400f684ab31c2f5fe569d40950"></a><!-- doxytag: member="vtkAbstractPicker::~vtkAbstractPicker" ref="425e3c400f684ab31c2f5fe569d40950" args="()" -->
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<td class="memname">vtkAbstractPicker::~vtkAbstractPicker </td>
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<td><code> [protected]</code></td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="b67b5da4ecc1221e694cad85d1748911"></a><!-- doxytag: member="vtkAbstractPicker::GetClassName" ref="b67b5da4ecc1221e694cad85d1748911" args="()" -->
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<td class="memname">virtual const char* vtkAbstractPicker::GetClassName </td>
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<td><code> [virtual]</code></td>
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<p>Reimplemented from <a class="el" href="a01084.html#d95975c85c2896ea32ff4cf1f8de0886">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a00088.html#abfd74bbdf42a0f09f5ed8e06191e439">vtkAbstractPropPicker</a>, <a class="el" href="a00123.html#764cd5fab468fd13d48890558bddef6b">vtkAreaPicker</a>, <a class="el" href="a00251.html#5aaab72dad99489fc904eaa6ca13a59c">vtkCellPicker</a>, <a class="el" href="a01212.html#d707139bf948ce1b29d510957b87057c">vtkPicker</a>, <a class="el" href="a01248.html#25b697f9d020eb88a075883bcd320bed">vtkPointPicker</a>, <a class="el" href="a01324.html#4697998dbd80131f82b6b607a6835c7a">vtkPropPicker</a>, <a class="el" href="a01479.html#e3fe9b64838f7e62709810049997abc2">vtkRenderedAreaPicker</a>, and <a class="el" href="a01890.html#1907be1940cff5eb56c78e4c474092bb">vtkWorldPointPicker</a>.</p>
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<a class="anchor" name="056f9c961407be2172605a8bcc766945"></a><!-- doxytag: member="vtkAbstractPicker::IsTypeOf" ref="056f9c961407be2172605a8bcc766945" args="(const char *type)" -->
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<td class="memname">static int vtkAbstractPicker::IsTypeOf </td>
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<td class="paramtype">const char * </td>
<td class="paramname"> <em>name</em> </td>
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<td><code> [static]</code></td>
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Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.
<p>Reimplemented from <a class="el" href="a01084.html#e9548a248bce0f02f73bbcccd0a9489e">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a00088.html#f61d20e75259a9e48a18f88ca539008d">vtkAbstractPropPicker</a>, <a class="el" href="a00123.html#64c70ec521cb749214030bf1f355b9b7">vtkAreaPicker</a>, <a class="el" href="a00251.html#50ae253a78271fb53e86c923cb5da2a5">vtkCellPicker</a>, <a class="el" href="a01212.html#4844d64a6a04f9700216f09910a1197e">vtkPicker</a>, <a class="el" href="a01248.html#fd42ae8111672cd10d7516f8f19bcc6a">vtkPointPicker</a>, <a class="el" href="a01324.html#1f078a9c9d986bcabfd4848c40719ce0">vtkPropPicker</a>, <a class="el" href="a01479.html#de308eb6b795e992d8c776083e8e60d4">vtkRenderedAreaPicker</a>, and <a class="el" href="a01890.html#21de6aed1fa13edb8c739bbf47489e73">vtkWorldPointPicker</a>.</p>
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<a class="anchor" name="d68cc578f58c89f953ba8d80d751f49d"></a><!-- doxytag: member="vtkAbstractPicker::IsA" ref="d68cc578f58c89f953ba8d80d751f49d" args="(const char *type)" -->
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<td class="memname">virtual int vtkAbstractPicker::IsA </td>
<td>(</td>
<td class="paramtype">const char * </td>
<td class="paramname"> <em>name</em> </td>
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<td><code> [virtual]</code></td>
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Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeRevisionMacro found in vtkSetGet.h.
<p>Reimplemented from <a class="el" href="a01084.html#831e57b04e46827a7098aa81abadee69">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a00088.html#b1298f596bafccba0af6821eebe34084">vtkAbstractPropPicker</a>, <a class="el" href="a00123.html#ac0b4a961bb019593b6e997e6405f345">vtkAreaPicker</a>, <a class="el" href="a00251.html#fd8691fd9c287d27705e23e422618672">vtkCellPicker</a>, <a class="el" href="a01212.html#6acb280d3b82046e4ac17f07c4a4ed46">vtkPicker</a>, <a class="el" href="a01248.html#a4a9037f78a5e2342fe5935bb5e07c06">vtkPointPicker</a>, <a class="el" href="a01324.html#80dee517214767b2faa1c49c3e78ce9f">vtkPropPicker</a>, <a class="el" href="a01479.html#910f54ffa1425140aa4fac199cd69ca5">vtkRenderedAreaPicker</a>, and <a class="el" href="a01890.html#b7dd265a941039cdbcbd37ef9fd5e07b">vtkWorldPointPicker</a>.</p>
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<a class="anchor" name="3d2cd6833ee7eb6e9cf472163263b929"></a><!-- doxytag: member="vtkAbstractPicker::SafeDownCast" ref="3d2cd6833ee7eb6e9cf472163263b929" args="(vtkObject *o)" -->
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<td class="memname">static <a class="el" href="a00086.html">vtkAbstractPicker</a>* vtkAbstractPicker::SafeDownCast </td>
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<td class="paramtype"><a class="el" href="a01084.html">vtkObject</a> * </td>
<td class="paramname"> <em>o</em> </td>
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<p>Reimplemented from <a class="el" href="a01084.html#bb9351f076544c427ee91229dce83abe">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a00088.html#6ae2b5b699e03e70b58d02b61b544971">vtkAbstractPropPicker</a>, <a class="el" href="a00123.html#3562e41e66cb4fee934714d74536ad6d">vtkAreaPicker</a>, <a class="el" href="a00251.html#ecaa70b8155bad5b02736d468c85040e">vtkCellPicker</a>, <a class="el" href="a01212.html#4619c9e37985e9b4ac6eae0a700e5d2a">vtkPicker</a>, <a class="el" href="a01248.html#92ac13ddd90ab2f65014578f532cfaea">vtkPointPicker</a>, <a class="el" href="a01324.html#e2bf821fe287fe7a40a45bbd1b80873f">vtkPropPicker</a>, <a class="el" href="a01479.html#5536fed28858ca8330a55464ed7690aa">vtkRenderedAreaPicker</a>, and <a class="el" href="a01890.html#300d201db09ca01bfd70937107410d82">vtkWorldPointPicker</a>.</p>
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<a class="anchor" name="c6c46a92f2cfd976f27431f2865a84c7"></a><!-- doxytag: member="vtkAbstractPicker::PrintSelf" ref="c6c46a92f2cfd976f27431f2865a84c7" args="(ostream &os, vtkIndent indent)" -->
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<td class="memname">void vtkAbstractPicker::PrintSelf </td>
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<td class="paramtype"><a class="el" href="a00869.html">vtkIndent</a> </td>
<td class="paramname"> <em>indent</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
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Methods invoked by print to print information about the object including superclasses. Typically not called by the user (use <a class="el" href="a01085.html#edadf6378465fd81c2592ef64262e2a5">Print()</a> instead) but used in the hierarchical print process to combine the output of several classes.
<p>Reimplemented from <a class="el" href="a01084.html#bf3dbb4154289b56a12483eee3866263">vtkObject</a>.</p>
<p>Reimplemented in <a class="el" href="a00088.html#f136efb76670dbf00a158221aceb1cee">vtkAbstractPropPicker</a>, <a class="el" href="a00123.html#88b81c3ba76c68e8999e5b6f0197edcd">vtkAreaPicker</a>, <a class="el" href="a00251.html#ffa00f627e4cdbdcdaa5c7c3ef742302">vtkCellPicker</a>, <a class="el" href="a01212.html#d94c8ad4fc7f987f64377d4da789ec6c">vtkPicker</a>, <a class="el" href="a01248.html#0a2a748f9983e0e8db601cac70e1fedf">vtkPointPicker</a>, <a class="el" href="a01324.html#a476440606de82f7bb7654b95814096b">vtkPropPicker</a>, <a class="el" href="a01479.html#aca267e3494399f03b9d62ea74e88e52">vtkRenderedAreaPicker</a>, and <a class="el" href="a01890.html#6d52cf1d4dc205bdc260f15187ea43c0">vtkWorldPointPicker</a>.</p>
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<a class="anchor" name="60de8395e65dd69930da6a14a6d1bb39"></a><!-- doxytag: member="vtkAbstractPicker::GetRenderer" ref="60de8395e65dd69930da6a14a6d1bb39" args="()" -->
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<td class="memname">virtual <a class="el" href="a01480.html">vtkRenderer</a>* vtkAbstractPicker::GetRenderer </td>
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<td><code> [virtual]</code></td>
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Get the renderer in which pick event occurred.
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<a class="anchor" name="5582e96205b5c38244be7d22c2edac36"></a><!-- doxytag: member="vtkAbstractPicker::GetSelectionPoint" ref="5582e96205b5c38244be7d22c2edac36" args="()" -->
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<td class="memname">virtual double* vtkAbstractPicker::GetSelectionPoint </td>
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Get the selection point in screen (pixel) coordinates. The third value is related to z-buffer depth. (Normally should be =0.)
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<a class="anchor" name="6b492f0b7a4da345b0661320545d8340"></a><!-- doxytag: member="vtkAbstractPicker::GetSelectionPoint" ref="6b492f0b7a4da345b0661320545d8340" args="(double data[3])" -->
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<td class="memname">virtual void vtkAbstractPicker::GetSelectionPoint </td>
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<td class="paramtype">double </td>
<td class="paramname"> <em>data</em>[3] </td>
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Get the selection point in screen (pixel) coordinates. The third value is related to z-buffer depth. (Normally should be =0.)
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<a class="anchor" name="4eee282567ef4c95eb8e7a57a45cfccc"></a><!-- doxytag: member="vtkAbstractPicker::GetPickPosition" ref="4eee282567ef4c95eb8e7a57a45cfccc" args="()" -->
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<td class="memname">virtual double* vtkAbstractPicker::GetPickPosition </td>
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Return position in global coordinates of pick point.
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<a class="anchor" name="cfb108eb053147dd25ed3b951489949b"></a><!-- doxytag: member="vtkAbstractPicker::GetPickPosition" ref="cfb108eb053147dd25ed3b951489949b" args="(double data[3])" -->
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<td class="memname">virtual void vtkAbstractPicker::GetPickPosition </td>
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<td class="paramtype">double </td>
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Return position in global coordinates of pick point.
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<a class="anchor" name="2a0b3479c5e079d2a22fa59e7af828e7"></a><!-- doxytag: member="vtkAbstractPicker::Pick" ref="2a0b3479c5e079d2a22fa59e7af828e7" args="(double selectionX, double selectionY, double selectionZ, vtkRenderer *renderer)=0" -->
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<td class="memname">virtual int vtkAbstractPicker::Pick </td>
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<td class="paramtype">double </td>
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Perform pick operation with selection point provided. Normally the first two values for the selection point are x-y pixel coordinate, and the third value is =0. Return non-zero if something was successfully picked.
<p>Implemented in <a class="el" href="a01212.html#c477fe0437c00cf4a8ab869f55e35864">vtkPicker</a>, <a class="el" href="a01324.html#122fc3089b999710b9ecacc42dfd9f70">vtkPropPicker</a>, and <a class="el" href="a01890.html#ac50d228b5a2075992b36decf7bba117">vtkWorldPointPicker</a>.</p>
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<a class="anchor" name="d63fe85335f93d041358eec7538c940c"></a><!-- doxytag: member="vtkAbstractPicker::Pick" ref="d63fe85335f93d041358eec7538c940c" args="(double selectionPt[3], vtkRenderer *ren)" -->
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<td class="memname">int vtkAbstractPicker::Pick </td>
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<td class="paramtype">double </td>
<td class="paramname"> <em>selectionPt</em>[3], </td>
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provided. Normally the first two values for the selection point are x-y pixel coordinate, and the third value is =0. Return non-zero if something was successfully picked.
<p>Reimplemented in <a class="el" href="a01212.html#2c37e44d7f79f61e9b8e0ad898f56773">vtkPicker</a>, <a class="el" href="a01324.html#d2558868a066ef34e150ddcf449f0e19">vtkPropPicker</a>, and <a class="el" href="a01890.html#30f76bdc6ecda2e2d94bdf76ddc43bd3">vtkWorldPointPicker</a>.</p>
<p>Definition at line <a class="el" href="a05149.html#l00101">101</a> of file <a class="el" href="a05149.html">vtkAbstractPicker.h</a>.</p>
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<a class="anchor" name="9632664952293feb07a881554e2c8d99"></a><!-- doxytag: member="vtkAbstractPicker::SetPickFromList" ref="9632664952293feb07a881554e2c8d99" args="(int)" -->
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<td class="memname">virtual void vtkAbstractPicker::SetPickFromList </td>
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Use these methods to control whether to limit the picking to this list (rather than renderer's actors). Make sure that the pick list contains actors that referred to by the picker's renderer.
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<a class="anchor" name="6bffee19add92c9a9c2ade53a1e0a36a"></a><!-- doxytag: member="vtkAbstractPicker::GetPickFromList" ref="6bffee19add92c9a9c2ade53a1e0a36a" args="()" -->
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<td class="memname">virtual int vtkAbstractPicker::GetPickFromList </td>
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<td><code> [virtual]</code></td>
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Use these methods to control whether to limit the picking to this list (rather than renderer's actors). Make sure that the pick list contains actors that referred to by the picker's renderer.
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<a class="anchor" name="2987fe011070b71a3439a168727cb40a"></a><!-- doxytag: member="vtkAbstractPicker::PickFromListOn" ref="2987fe011070b71a3439a168727cb40a" args="()" -->
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<td class="memname">virtual void vtkAbstractPicker::PickFromListOn </td>
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<td><code> [virtual]</code></td>
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Use these methods to control whether to limit the picking to this list (rather than renderer's actors). Make sure that the pick list contains actors that referred to by the picker's renderer.
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<a class="anchor" name="534dd05dd55374822b8340ba8b70fa7c"></a><!-- doxytag: member="vtkAbstractPicker::PickFromListOff" ref="534dd05dd55374822b8340ba8b70fa7c" args="()" -->
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<td class="memname">virtual void vtkAbstractPicker::PickFromListOff </td>
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<td><code> [virtual]</code></td>
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Use these methods to control whether to limit the picking to this list (rather than renderer's actors). Make sure that the pick list contains actors that referred to by the picker's renderer.
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<a class="anchor" name="b4ba05892738b22fe14fa05f344b5dc1"></a><!-- doxytag: member="vtkAbstractPicker::InitializePickList" ref="b4ba05892738b22fe14fa05f344b5dc1" args="()" -->
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<td class="memname">void vtkAbstractPicker::InitializePickList </td>
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Initialize list of actors in pick list.
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<a class="anchor" name="b10d0147b3cfb89edbb5e47ceed75ada"></a><!-- doxytag: member="vtkAbstractPicker::AddPickList" ref="b10d0147b3cfb89edbb5e47ceed75ada" args="(vtkProp *)" -->
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<td class="memname">void vtkAbstractPicker::AddPickList </td>
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<td class="paramname"> </td>
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Add an actor to the pick list.
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<a class="anchor" name="8118c0b642a4061424dca368f8b182e5"></a><!-- doxytag: member="vtkAbstractPicker::DeletePickList" ref="8118c0b642a4061424dca368f8b182e5" args="(vtkProp *)" -->
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<td class="memname">void vtkAbstractPicker::DeletePickList </td>
<td>(</td>
<td class="paramtype"><a class="el" href="a01317.html">vtkProp</a> * </td>
<td class="paramname"> </td>
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Delete an actor from the pick list.
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<a class="anchor" name="ca44b4895bdbdd6834789febdeeadbfd"></a><!-- doxytag: member="vtkAbstractPicker::GetPickList" ref="ca44b4895bdbdd6834789febdeeadbfd" args="()" -->
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<td class="memname"><a class="el" href="a01321.html">vtkPropCollection</a>* vtkAbstractPicker::GetPickList </td>
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<td><code> [inline]</code></td>
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Return the list of actors in the PickList.
<p>Definition at line <a class="el" href="a05149.html#l00124">124</a> of file <a class="el" href="a05149.html">vtkAbstractPicker.h</a>.</p>
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<a class="anchor" name="3ec0c3d41a652f30d966efa79a4952fb"></a><!-- doxytag: member="vtkAbstractPicker::Initialize" ref="3ec0c3d41a652f30d966efa79a4952fb" args="()" -->
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<td class="memname">virtual void vtkAbstractPicker::Initialize </td>
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<p>Reimplemented in <a class="el" href="a00088.html#15c0e600ad8c7e53a3246c46a5a82391">vtkAbstractPropPicker</a>, <a class="el" href="a00123.html#c5feb8a919dfc8d08a8a2b64e0bccac1">vtkAreaPicker</a>, <a class="el" href="a00251.html#220ef7eb6c6935ae7be7e3934fbc01dd">vtkCellPicker</a>, <a class="el" href="a01212.html#78257172021be8acfefafc3dd42f4985">vtkPicker</a>, <a class="el" href="a01248.html#30acdce850a43127a62eafb2578789f7">vtkPointPicker</a>, and <a class="el" href="a01324.html#cb62e1e9bd26d9b644693eb7d283f003">vtkPropPicker</a>.</p>
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<hr><h2>Member Data Documentation</h2>
<a class="anchor" name="07263b8d70850eee6a4ef6c9c57286b7"></a><!-- doxytag: member="vtkAbstractPicker::Renderer" ref="07263b8d70850eee6a4ef6c9c57286b7" args="" -->
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<td class="memname"><a class="el" href="a01480.html">vtkRenderer</a>* <a class="el" href="a00086.html#07263b8d70850eee6a4ef6c9c57286b7">vtkAbstractPicker::Renderer</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05149.html#l00132">132</a> of file <a class="el" href="a05149.html">vtkAbstractPicker.h</a>.</p>
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<a class="anchor" name="451dd4decb9d42c4784491eeed58c63e"></a><!-- doxytag: member="vtkAbstractPicker::SelectionPoint" ref="451dd4decb9d42c4784491eeed58c63e" args="[3]" -->
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<td class="memname">double <a class="el" href="a00086.html#451dd4decb9d42c4784491eeed58c63e">vtkAbstractPicker::SelectionPoint</a>[3]<code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05149.html#l00133">133</a> of file <a class="el" href="a05149.html">vtkAbstractPicker.h</a>.</p>
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<a class="anchor" name="b6c64a7b863421550f59e25a30d326fb"></a><!-- doxytag: member="vtkAbstractPicker::PickPosition" ref="b6c64a7b863421550f59e25a30d326fb" args="[3]" -->
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<td class="memname">double <a class="el" href="a00086.html#b6c64a7b863421550f59e25a30d326fb">vtkAbstractPicker::PickPosition</a>[3]<code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05149.html#l00134">134</a> of file <a class="el" href="a05149.html">vtkAbstractPicker.h</a>.</p>
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<a class="anchor" name="06c12e7ccb45024560ba36d6516d090b"></a><!-- doxytag: member="vtkAbstractPicker::PickFromList" ref="06c12e7ccb45024560ba36d6516d090b" args="" -->
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<td class="memname">int <a class="el" href="a00086.html#06c12e7ccb45024560ba36d6516d090b">vtkAbstractPicker::PickFromList</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05149.html#l00137">137</a> of file <a class="el" href="a05149.html">vtkAbstractPicker.h</a>.</p>
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<a class="anchor" name="e264a3f7d8d77f1b507ec003b19020a7"></a><!-- doxytag: member="vtkAbstractPicker::PickList" ref="e264a3f7d8d77f1b507ec003b19020a7" args="" -->
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<td class="memname"><a class="el" href="a01321.html">vtkPropCollection</a>* <a class="el" href="a00086.html#e264a3f7d8d77f1b507ec003b19020a7">vtkAbstractPicker::PickList</a><code> [protected]</code> </td>
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<p>Definition at line <a class="el" href="a05149.html#l00138">138</a> of file <a class="el" href="a05149.html">vtkAbstractPicker.h</a>.</p>
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<hr>The documentation for this class was generated from the following file:<ul>
<li>dox/Rendering/<a class="el" href="a05149.html">vtkAbstractPicker.h</a></ul>
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<hr size="1"><address style="text-align: right;"><small>Generated on Wed Jun 3 18:52:28 2009 for VTK by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.6 </small></address>
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