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Transactions on Information and Communication Technologies

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Submitted By niu9146
Words 891
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Package ‘rgl’
November 12, 2014
Version 0.95.1158 Title 3D visualization device system (OpenGL) Author Daniel Adler , Duncan Murdoch , and others (see README) Maintainer Duncan Murdoch Depends R (>= 2.15.0),stats,grDevices Suggests MASS Description Provides medium to high level functions for 3D interactive graphics, including functions modelled on base graphics (plot3d(), etc.) as well as functions for constructing representations of geometric objects (cube3d(), etc.). Output may be on screen using OpenGL, or to various standard 3D file formats including WebGL, PLY, OBJ, STL as well as 2D image formats, including PNG, Postscript, SVG, PGF. License GPL URL https://r-forge.r-project.org/projects/rgl/ SystemRequirements OpenGL, GLU Library, zlib (optional), libpng (>=1.2.9, optional), FreeType (optional) BugReports https://r-forge.r-project.org/projects/rgl/ Repository CRAN Repository/R-Forge/Project rgl Repository/R-Forge/Revision 1158 Repository/R-Forge/DateTimeStamp 2014-11-11 17:27:21 Date/Publication 2014-11-12 08:33:28 NeedsCompilation yes 1

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R topics documented:

R topics documented: rgl-package . . . . . . .check3d . . . . . . . . abclines3d . . . . . . . addNormals . . . . . . aspect3d . . . . . . . . axes3d . . . . . . . . . bg3d . . . . . . . . . . bgplot3d . . . . . . . . cylinder3d . . . . . . . ellipse3d . . . . . . . . extrude3d . . . . . . . grid3d . . . . . . . . . identify3d . . . . . . . light . . . . . . . . . . matrices . . . . . . . . mesh3d . . . . . . . . mfrow3d . . . . . . . . observer3d . . . . . . . par3d . . . . . . . . . par3dinterp . . . . . . persp3d . . . . . . . . persp3d.function . . . planes3d . . . . . . . . play3d . . . . . . . . . plot3d . . . . . . . . . points3d . . . . . . . . polygon3d . . . . . . . r3d . . . . . . . . . . . readSTL . . . . . . . . rgl.attrib . . . . . . . . rgl.bbox . . . . . . . . rgl.bringtotop . . . . . rgl.material . . . . . . rgl.open . . . . . . . . rgl.pixels . . . . . . . rgl.postscript . . . . . rgl.primitive . . . . . . rgl.select . . . . . . . . rgl.setMouseCallbacks rgl.snapshot . . . . . . rgl.surface . . . . . . . rgl.Sweave . . . . . . . rgl.useNULL . . . . . rgl.user2window . . . scene . . . . . . . . . scene3d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4 4 5 6 7 9 10 12 13 15 16 18 19 20 22 24 26 27 32 33 36 38 40 42 44 45 47 48 50 51 53 54 57 58 59 61 62 63 64 65 67 69 69 71 72

rgl-package select3d . . . selectpoints3d shapelist3d . spheres3d . . spin3d . . . . sprites . . . . subdivision3d subscene3d . subsceneInfo surface3d . . text3d . . . . triangulate . . turn3d . . . . viewpoint . . writeOBJ . . writePLY . . writeWebGL . Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 74 75 77 78 79 80 81 82 85 86 87 90 91 92 94 95 97 99

rgl-package

3D visualization device system

Description 3D real-time rendering system. Details RGL is a 3D real-time rendering system for R. Multiple windows are managed at a time. Windows may be divided into “subscenes”, where one has the current focus that receives instructions from the R command-line. The device design is oriented towards the R device metaphor. If you send scene management instructions, and there’s no device open, it will be opened automatically. Opened devices automatically get the current device focus. The focus may be changed by using rgl.set() or useSubscene3d(). rgl provides medium to high level functions for 3D interactive graphics, including functions modelled on base graphics (plot3d(), etc.) as well as functions for constructing geometric objects (cube3d(), etc.). Output may be on screen using OpenGL, or to various standard 3D file formats including WebGL, PLY, OBJ, STL as well as 2D image formats, including PNG, Postscript, SVG, PGF. The open3d() function attempts to open a new RGL window, using default settings specified by the user. rgl also includes a lower level interface which is described in the rgl.open help topic. We recommend that you avoid mixing rgl.* and *3d calls. See the first example below to display the ChangeLog.

4 See Also

abclines3d

r3d for a description of the *3d interface; par3d for a description of scene properties and the rendering pipeline. Examples file.show(system.file("NEWS", package="rgl")) example(surface3d) example(plot3d)

.check3d

Check for an open rgl window.

Description Mostly for internal use, this function returns the current device number if one exists, or opens a new device and returns that. Usage .check3d() Value The device number of an rgl device. Author(s) Duncan Murdoch See Also open3d

abclines3d

Lines intersecting the bounding box

Description This adds mathematical lines to a scene. Their intersection with the current bounding box will be drawn. Usage rgl.abclines(x, y = NULL, z = NULL, a, b = NULL, c = NULL, ...) abclines3d(x, y = NULL, z = NULL, a, b = NULL, c = NULL, ...)

addNormals Arguments x,y,z a,b,c ... Details Coordinates of points through which each line passes. Coordinates of the direction vectors for the lines. Material properties.

5

These functions draw the segment of a line that intersects the current bounding box of the scene using the parametrization (x, y, z) + (a, b, c) ∗ s where s is a real number. Any reasonable way of defining the coordinates x,y,z and a,b,c is acceptable. See the function xyz.coords for details. Value A shape ID of the object is returned invisibly. See Also planes3d, rgl.planes for mathematical planes. segments3d draws sections of lines that do not adapt to the bounding box. Examples plot3d(rnorm(100), rnorm(100), rnorm(100)) abclines3d(0,0,0, a=diag(3), col="gray")

addNormals

Add normal vectors to objects so they render more smoothly.

Description This generic function adds normals at each of the vertices of a polyhedron by averaging the normals of each incident face. This has the effect of making the surface of the object appear smooth rather than faceted when rendered. Usage addNormals(x, ...) Arguments x ... Details Currently methods are supplied for "mesh3d" and "shapelist3d" classes. An object to which to add normals. Additional parameters which will be passed to the methods. Currently unused.

6 Value A new object of the same class as x, with normals added. Author(s) Duncan Murdoch Examples open3d() y

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