asxp

What asxp does

It runs under Linux (Ubuntu 16.04 LTS on my machine) and generates perspective views of algebraic surfaces via raycasting:

You define a certain polynomial f(x, y, z, a, b) in the variables x, y, z and parameters a and b in the configuration file of asxp.

Then you can go into a visualizing window for the surface, where the position of the mouse determines the parameters a and b as a0 and b0 and the surface plotted is the (two dimensional projection of the) zero-set

f(x, y, z, a0, b0) = 0

in 3d-space with coordinates x, y, z.

In total it does

create living views of an algebraic surface under parameter change,
produce Floyd-Steinberg dithered grayscale images of surfaces,
create images which are cross hatched along the principal directions of curvature,
display silhouette images,
triangularize surfaces, smoothen and reduce the triangularization,
produce STL models ready for 3D printing (with the help of an auxiliary program, renderstl).

Look at the video

The current version runs with CUDA support and uses the parallel processing power of the graphic card:

A drawing

This drawing is done with principal curvature crossfield hatch:

Building asxp

Introduction

At the moment I give only a sketchy explanation for experts who know how to extract the necessary dependency informations from the makefiles and can change the makefiles accordingly. If you need more detailed information how to build asxp please write me an e-mail.

Prerequisites

Generally asxp depends on Qt, boost, CGAL, GNU GTS, CUDA.

Look at libs.txt for a way to find the necessary dependencies of asxp on an Ubuntu system with apt-file.

Steps

Suppose you want to build asxp in your directory software anywhere in your filesystem.

cd software
git clone https://www.github.com/juergenboehm/asxp_npr2.git
cd asxp_npr2

Modify paths and variable values in asxp.pro and in cuda/Makefile if necessary.

./qmakeit
cd cuda
make
cd ..
make

At the moment, the cuda library cuda/lib/libasxp.a must always be built separately.

Author

Jürgen Böhm - see www.aviduratas.de

Name		Name	Last commit message	Last commit date
Latest commit History 18 Commits
.settings		.settings
cuda		cuda
images		images
.cproject		.cproject
.project		.project
Makefile		Makefile
Makefile.good		Makefile.good
README.md		README.md
Regular_grid_xp_2.h		Regular_grid_xp_2.h
addington-quartic.txt		addington-quartic.txt
asxp-antares.conf		asxp-antares.conf
asxp.conf		asxp.conf
asxp.cpp		asxp.cpp
asxp.h		asxp.h
asxp.pro		asxp.pro
asxp_arrays.h		asxp_arrays.h
attic.txt		attic.txt
clipper.cpp		clipper.cpp
clipper.hpp		clipper.hpp
configfile.cpp		configfile.cpp
configfile.h		configfile.h
eigen.cpp		eigen.cpp
eigen.h		eigen.h
expr.cpp		expr.cpp
expr.h		expr.h
global_headers.h		global_headers.h
glwidget.cpp		glwidget.cpp
glwidget.h		glwidget.h
gtssurface.cpp		gtssurface.cpp
gtssurface.h		gtssurface.h
libnames.txt		libnames.txt
libnames1.txt		libnames1.txt
libs.txt		libs.txt
main.cpp		main.cpp
mainwindow.cpp		mainwindow.cpp
mainwindow.h		mainwindow.h
openscad.cpp		openscad.cpp
openscad.h		openscad.h
parser.cpp		parser.cpp
parser.h		parser.h
parserex.cpp		parserex.cpp
parserex.h		parserex.h
pimage.h		pimage.h
pointlist.cpp		pointlist.cpp
pointlist.h		pointlist.h
pointraster.cpp		pointraster.cpp
pointraster.h		pointraster.h
poly.cpp		poly.cpp
poly.h		poly.h
procpoly.cpp		procpoly.cpp
procpoly.h		procpoly.h
qmakeit		qmakeit
roots.cpp		roots.cpp
roots.h		roots.h
screenwidget.cpp		screenwidget.cpp
screenwidget.h		screenwidget.h
setlib		setlib
sliders.cpp		sliders.cpp
sliders.h		sliders.h
streamline.cpp		streamline.cpp
streamline.h		streamline.h
streamplot.cpp		streamplot.cpp
streamplot.h		streamplot.h
test.data		test.data
tests.cpp		tests.cpp
tests.h		tests.h
timing.cpp		timing.cpp
timing.h		timing.h
triangularize.cpp		triangularize.cpp
triangularize.h		triangularize.h

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