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author | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
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committer | Norbert Preining <norbert@preining.info> | 2019-09-02 13:46:59 +0900 |
commit | e0c6872cf40896c7be36b11dcc744620f10adf1d (patch) | |
tree | 60335e10d2f4354b0674ec22d7b53f0f8abee672 /graphics/epix/samples/README |
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diff --git a/graphics/epix/samples/README b/graphics/epix/samples/README new file mode 100644 index 0000000000..b51bd10d3c --- /dev/null +++ b/graphics/epix/samples/README @@ -0,0 +1,258 @@ +ePiX -- samples/README + +Last Change: September 22, 2007 + +This directory contains sample files. Files with extension ".flx" may +be compiled like xp files with epix or elaps, or converted to gif or +mng animations with flix. + + +artifacts.xp + Interaction between coarse and fine meshes in shade surface plotting. + +binom.cc: + Generates pseudo-random data for histogram.xp + +bowl.xp: + Quasi-realistic colored surface shading. + +butterfly.xp: + A Thom catastrophe graph. + +calculus.xp: + Plotting derivatives and definite integrals. + +clipping.xp: + Clipping, shaded surfaces, and fake transparency. + +color_sep.xp: + Color separation. + +conic.xp: + Envelopes and tangent lines; projective equivalence of a parabola + with a circle. + +contour.xp: + Building a path from sub-paths. + +coord_tricks.xp: + Using page layout to achieve broken axes. + +cropplot.xp + Graphing functions with singularities. + +cube.flx: + Stereoscopic (3-D glasses) movie of a rotating cube. + +dataplot.xp: + Scatter plots, histograms, and page layout. + +decorate.xp: + Decorated shaded surface (see file for compiling). + +demoivre.xp: + Loops; a geometric proof of deMoivre's formula. + +densityplot.xp: + A gray-shaded interference pattern. + +dipole.xp: + Plotting flow lines and isobars. + +denom.xp: + Loops and gcd; Thomae's function with discontinuity set Q. + +extract.xp: + A magnified inset using screen::extract; an unexpected tangent line. + +geomsum.xp: + Loops and color filling. + +golden_rect.xp: + Simple use of variables; constructing a golden rectangle. + +helicoid.flx: + Isometric deformation of a catenoid to a helicoid. + +hello.xp: + My First Figure, from the manual. + +histogram.xp: + Histograms of simulated coin tosses (data from binom.cc). + +house.flx: + Color semantics; sun setting on a simple house. + +hyperboloid.xp: + Clipping, shaded surfaces; two families of rulings on a hyperboloid. + +inverse.xp: + Screen affine operations; inverse functions. + +koch.xp: + The von Koch snowflake fractal. + +label_debug.xp: + Format debugging tests for labels, draws 32 attribute combinations. + +layout2.xp: + Page layout; flow lines of a planar vector field. + +layout.xp: + Page layout; six views of the square root Riemann surface. + +legend.xp: + Axes and legends; Taylor polynomials of sin x. + +levelset.xp: + Clipping and plotting; manual level curves on a saddle. + +levelset2.xp: + "Advanced" clipping; level bands on a monkey saddle. + +levelset3.xp: + Clipping and legends; flat-shaded level bands wth matching legend. + +lissajous.xp: + A Lissajous figure with arrows. + +lighting.h: Classes for lighting effects and color-shaded surfaces. + (lighting.flx illustrates use.) + +line_debug.xp: + Format debugging tests for paths, draws 32 attribute combinations. + +log.xp: + Object hiding with paths and surfaces; the Riemann surface of log. + +lorenz.xp: + Page layout, ode_plot; the Lorenz attractor and its 3-D vector field. + +medians.xp: + Euclidean geometry; medians and altitudes of a triangle. + +minkowski.xp: + A longitudinal slice of Minkowski space R^{2,1}. + +mirrorball.flx: + The circle class and intersections; 3-D stereographic movie. + +newton.xp: + Loops; root location by Newton's method. + +objects.xp: + Simple geometric objects; 2-D landscape. + +oscillator.xp: + Graphing, user-defined elements, and page layout. + +parabola.xp: + A basic plot. + +pascal.xp: + Intersection operators; Pascal's theorem in projective geometry. + +pendulum.flx: + Phase diagram of an undamped pendulum. + +planes.xp: + Manipulating objects, clipping; a stack of plane sections of a cube. + +plotting2.xp: + Surface plotting in PSTricks; from the manual. + +plotting3.xp: + Loops and color control; from the manual. + +plotting.xp: + A basic plot; from the manual. + +polar.xp: + Polar plotting. + +pole.xp: + Clipping a plot; the real part of a first-order pole. + +polyhedra.xp: + Spherical regular polyhedra. Compilation controlled with + pre-processor flags, e.g., "epix -DCOLOR -DDODECA polyhedra.xp". + +R_demo.xp: + Gaussians from the R demo. + +riemann.flx: + Rotating the Riemann surface of sqrt(z) in R^4. + +S2_harmonics.xp: + Domain-dependent surface shading (color function depends on two + variables), page layout; the spherical harmonic Y_3^0. (Compile with + "epix -DY20 S2_harmonics.xp" for Y_2^0.) + +saddle.xp: + A quadratic saddle using "surface" capabilities. + +semicirc.xp: + A simple figure using variables and a function for organization. + +shadeplot.xp: + Shading regions enclosed by graphs; the fundamental theorem of calculus. + +slopefield.xp: + A slope field and flow lines. + +sphere.xp: + Plotting curves and latitudes/longitudes; loxodromes. + +spherical.xp: + Scenery (multiple shaded surfaces); spherical coordinates. + +sqrt.xp: + Domains and selective plotting; the Riemann surface of sqrt(z). + +sqrt2.xp: + Domains, selective plotting, and change of style in a single plot. + +std_F.cc, std_F.h: + Extensively-commented library code for depicting 2-D affine maps. + +std_F.xp: + Sample file illustrating the use of external libraries. Contains + instructions on building a library from std_F.cc. + +steiner.flx: + Steiner's Roman surface, rotating. + +steiner2.flx: + Steiner's Roman surface sliced, with slice direction rotating. + +surface_shade.xp: + Position-dependent surface shading. (Color function depends on three + variables.) + +symmetries.xp: + Affine maps and layout; the symmetry group S_3 acting on a regular + hexagon. + +tori.xp: + Clipping and cropping, page layout. + +torus.xp: + Domains and selective plotting. + +trig.flx: + Trigonometric functions. + +twisted_cubic.xp: + Page layout; a crossed-eyes stereogram of the twisted cubic. + +uppersum.xp: + Riemann sums. + +vfield.xp: + 3-D vector field plotting. + +weierstrass.xp: + Loops; a Weierstrass nowhere-differentiable function. + +wheel.xp: + Page layout; a cycloid at successive times. |