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<center><h1>The Event Display classes</h1></center>
<p><hr><p>
    Eve is a ROOT module
    based on experiment-independant part of the ALICE event display
    developed in cooperation between ALICE offline project and ROOT
    during the last two years. It has been used in ALICE for more than
    a year to perform high-level event visualization, debugging of
    simulation and reconstruction code as well as for raw-data
    visualization.

    <p>
      Eve is built on top of ROOT's GUI, GL and GED infrastructure and delivers
      the following main features:

    <ul>

      <li> Base-classes for representation of visual objects that can
	be presented in list-tree views, object-editors and rendered
	via OpenGL (<tt>TEveElement</tt> and sub-classes).

      <li> Application manager class <tt>TEveManager</tt> for top-level
	management of elements, GUI components, geometries and events;

      <li> Classes for presentation of full TGeo geometries
	(<tt>TEveGeoNode</tt> and <tt>TEveGeoTopNode</tt>) as well as of
	simplifed geometries via extraction of shape-data
	(<tt>TEveGeoShape</tt>).

	<p><img alt="CMS geometry." src="gif/eve-cmsgeo.png">
	
      <li> Classes for presentation of trajectories or tracks
	(<tt>TEveTrack</tt>, <tt>TEveTrackPropagator</tt>) and hits or
	clusters (<tt>TEvePointSet</tt>, <tt>TEvePointSetArray</tt>).

	<p><img alt="A simulated ALICE pp@14TeV event in 3D." src="gif/eve-alice3d.png">

      <li> Base-classes for presentation of raw-data or digits
	(<tt>TEveDigitSet</tt>, <tt>TEveQuadSet</tt> and
	<tt>TEveBoxSet</tt>). A collection of objects can be assigned
	common signal-to-color mapping (<tt>TEveRGBAPelette</tt>) and
	surrounding frame (<tt>TEveFrameBox</tt>).

	<p><img alt="Hexagonal and rectangular digits." src="gif/eve-quadset.png">

      <li> Base-classes for 2D projections with dynamically controllable
	fish-eye magnification of the vertex region
	(<tt>TEveProjectionManager</tt> and
	<tt>TEveProjection</tt>). Tracks, points and geometries can be
	projected automatically. R-phi and Rho-z projections are
	currently supported.

	<p><img alt="A r-phi projection with fish-eye transformation
	    of a simulated ALICE pp@14TeV event." src="gif/eve-aliceproj.png">

      <li> <tt>TriangleSet</tt> class for presentation of generic
	triangle meshes.

	<p><img alt="3DS shuttle object." src="gif/eve-3ds.png">

    </ul>
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Add a class directory file describing the EVE package
Add a class directory file describing the EVE package


git-svn-id: acec3fd5b7ea1eb9e79d6329d318e8118ee2e14f@21336 27541ba8-7e3a-0410-8455-c3a389f83636
