Commit Graph

58 Commits (42a46e83faa08bc117a206e83319b6b2e0051c57)

Author SHA1 Message Date
Daniel Richard G 93145387f4 Fixed uninitialized-memory errors detected by Valgrind 2013-09-16 16:22:14 -04:00
Daniel Richard G a72575d04e Use casts to bridge mismatches in integer-type sizes and signedness
The compiler gets nervous when we (for example) pass in a size_t as an int
parameter, or assign an int to a char, or assign -1 to an unsigned type. By
adding appropriate casts, we inform the compiler that, yes, we know what
we're doing.

This change also upgrades a va_arg() type from char to int, as char is
always promoted to int when passed through '...'.
2013-08-26 16:19:23 -04:00
Daniel Richard G 02776ea535 Added const qualifiers
String literals in C++ are implicitly typed as 'const char *', and with
this change, their const-ness is maintained when assigning them to
variables or passing them as arguments. This significantly cuts down the
number of warnings generated by the compiler.
2013-08-26 14:58:35 -04:00
Jonathan Westhues 0ee8ba1457 Changes in preparation for the release of SolveSpace under the GPL,
to add that license, and change all copyright notices to me, not
Useful Subset, LLC.

[git-p4: depot-paths = "//depot/solvespace/": change = 2211]
2013-07-28 14:08:34 -08:00
Jonathan Westhues b974a4adeb A big nasty change, originally just to add paste transformed. So it
does that, and adds a scale factor to that transformation (instead
of just mirroring, as before), but also:

    * Replace the "import mirrored" mechanism with a scale factor,
      which if negative corresponds to a reflection as well.

    * Fix self-intersection checker to report a meaningful point
      when edges are collinear.

    * Don't blow an assertion on some types of invalid file;
      instead provide a nice error message to the user.

    * Clear the naked edges before each regen.

    * Don't create zero-length line segments by snapping a line
      segment's end to its beginning.

[git-p4: depot-paths = "//depot/solvespace/": change = 2086]
2009-12-15 04:26:22 -08:00
Jonathan Westhues 8e484beec1 Add a warning when zero-length edges appear in the sketch, since
those screw a lot of things up. And add data structure for
clipboard entities, though no code yet.

[git-p4: depot-paths = "//depot/solvespace/": change = 2082]
2009-12-03 11:14:34 -08:00
Jonathan Westhues 3515748334 Make the EPS, PDF, and SVG targets output filled contours. This
also means that closed contours will get output as a single path
now, vs. one open path per Bezier segment before.

I've simplified the 2d/3d wireframe export targets somewhat; they
now support only Beziers, without an additional special case for
line segments. The performance penalty for that should not be worth
caring about, since that's infrequent.

And fix a memory leak in FindOuterFacesFrom(), fix ugly output of
filled triangles in PDF (because the line join style did bad things
on long skinny triangles), fix non-zero Z coordinates for exported
views or sections in DXF or STEP.

[git-p4: depot-paths = "//depot/solvespace/": change = 2061]
2009-10-30 02:38:34 -08:00
Jonathan Westhues 2f115ec950 A monster change to add support for filled paths. This requires us
to assemble Beziers into outer and inner loops, and find those
loops made up of entities with filled styles. The open paths are
maintained in a separate list, and we assemble as many closed paths
as possible even when open paths exist.

This changes many things. The coplanar check is now performed on
the Beziers, not the resulting polygon. The way that the polygon is
used to determine loop directions is also modified.

Also fix the mouse behavior when dragging a point: drop it when the
mouse is released, even if it is released outside the window, but
don't drop it if the pointer is dragged out of and then back into
our window.

Also special-case SSurface::ClosestPointTo() for planes, for speed.

[git-p4: depot-paths = "//depot/solvespace/": change = 2058]
2009-10-28 23:16:28 -08:00
Jonathan Westhues c153e23f49 Add option to mirror imported geometry, including the shell, mesh,
and parametric entities. Also consolidate the text screen functions
to change group options into a single function for everything.

[git-p4: depot-paths = "//depot/solvespace/": change = 2051]
2009-10-09 04:57:10 -08:00
Jonathan Westhues ce37b1cf72 A better fix to the display mesh issue; instead of drawing the
previous group, copy the previous group's mesh into ours, and draw
ours. This makes other stuff that uses that mesh (like the export
and analysis code) work properly.

[git-p4: depot-paths = "//depot/solvespace/": change = 2050]
2009-10-07 23:55:09 -08:00
Jonathan Westhues 3da0f6e135 Oops, couldn't select the faces in groups that didn't contribute
thisShell or thisMesh; forgot about that when I did the change to
not re-triangulate shells (or re-edge-find meshes) unnecessarily.

[git-p4: depot-paths = "//depot/solvespace/": change = 2049]
2009-10-07 22:48:49 -08:00
Jonathan Westhues 33dfff2a78 Add option to disable the "not closed contour" warnings and such,
instead of tying that to whether the shaded model is shown. And
rewrite all URLs to solvespace.com, not www.solvespace.com, and get
rid of the nag screen that I just added because opening the website
with ShellExecute seems to freeze a bit on startup.

[git-p4: depot-paths = "//depot/solvespace/": change = 2044]
2009-10-01 02:35:11 -08:00
Jonathan Westhues 4634961054 Add ability to assign styles to cosmetic text (in the form of
Constraint::COMMENTs), including line width and color, and text
height and origin location.

[git-p4: depot-paths = "//depot/solvespace/": change = 2033]
2009-09-24 07:52:48 -08:00
Jonathan Westhues ce99217bbb Move colors and line widths for almost everything to the styles
mechanism. This gets filled in from some defaults, and stored in
the registry. The default styles do not get saved in the file, but
user-created styles (which aren't supported yet) do.

[git-p4: depot-paths = "//depot/solvespace/": change = 2028]
2009-09-16 23:32:36 -08:00
Jonathan Westhues 92da6c665b Change how step and repeat works: now I build the union of all the
steps in thisShell or thisMesh, and then let the Boolean proceed as
usual. If everything works, then this is equivalent. And it's less
code, and it makes stuff like stepping the step and repeat work.

Also begin to work on line/entity/constraint styles, but no real
work yet.

[git-p4: depot-paths = "//depot/solvespace/": change = 2018]
2009-07-19 17:47:59 -08:00
Jonathan Westhues 8b7f45e72e That optimization where I display the previous group's mesh or
shell when the current group has thisMesh and thisShell empty was
broken, since rotate or step and repeat groups don't use those.

So force something (doesn't matter what) into thisMesh or thisShell
in a step and repeat group, to make sure it always gets
recalculated and displayed. Ugly fix though.

[git-p4: depot-paths = "//depot/solvespace/": change = 2017]
2009-07-19 13:30:09 -08:00
Jonathan Westhues 66c93aab73 Add a mechanism to record the lines drawn when we display a
constraint, so that we can export that too. This includes the lines
for the vector font.

A little ugly; it needs some kind of line style (color or width) to
distinguish those lines from the real geometry in the exported
file.

[git-p4: depot-paths = "//depot/solvespace/": change = 2007]
2009-07-03 12:55:57 -08:00
Jonathan Westhues 3f5c439873 A very important optimisation; if we know that our mesh/shell is
identical to the previous group's (because our thisShell and
thisMesh are empty), then display the previous group's instead.
This saves us re-triangulating the shell (or recalculating the
edges of a triangle mesh) every time our group gets regenerated,
which was horribly slow.

[git-p4: depot-paths = "//depot/solvespace/": change = 2004]
2009-06-29 23:24:36 -08:00
Jonathan Westhues 7eefb79127 Show a progress message when regenerating is slow. And update the
version number to 1.4, don't include force-hidden entities when
building the loops, and don't show force-hidden entities when that
entity gets copied.

[git-p4: depot-paths = "//depot/solvespace/": change = 1983]
2009-06-13 20:36:38 -08:00
Jonathan Westhues 213c21db87 Oops, was looking for edges on the display mesh that I generated
from the NURBS surface! That got very slow very fast.

[git-p4: depot-paths = "//depot/solvespace/": change = 1970]
2009-06-06 01:19:25 -08:00
Jonathan Westhues 2f7a6bb61d Don't merge coincident surfaces when combining two shells as
"assemble". And don't show "naked" (not occuring in anti-parallel
pairs) edges when just testing for interference.

[git-p4: depot-paths = "//depot/solvespace/": change = 1967]
2009-06-06 00:21:03 -08:00
Jonathan Westhues 2d653eada8 Add code to identify planes and cylindrical surfaces from a solid
of revolution, and put them in the same form as if they had been
draw by an extrusion (so that we can use all the same special case
intersection curves).

And add code to merge coincident faces into one. That turns out to
be more than a cosmetic/efficiency thing, since edge splitting
fails at the join between two coincident faces.

[git-p4: depot-paths = "//depot/solvespace/": change = 1965]
2009-06-04 21:38:41 -08:00
Jonathan Westhues 438d517c5a If a Boolean fails, then make a note of it in the group's text
window screen, and remind the user that they could 'fix' the
problem by working with meshes instead.

[git-p4: depot-paths = "//depot/solvespace/": change = 1962]
2009-05-30 00:49:09 -08:00
Jonathan Westhues 842645d61f Put back code to generate emphasized edges from a mesh; so now we
can show edges for both meshes and shells, and export them and
hidden line remove and all the usual stuff.

And fix the zoom to fit on startup, so that it considers hidden
entities too. That avoids the problem where things get generated at
stupid chord tolerance because no entities were visible and the
mesh of course did not yet exist.

[git-p4: depot-paths = "//depot/solvespace/": change = 1961]
2009-05-28 21:40:17 -08:00
Jonathan Westhues 7536ccb054 Put back the "snap to vertex" stuff to remove tee intersections
that the BSP-based Booleans create.

[git-p4: depot-paths = "//depot/solvespace/": change = 1960]
2009-05-27 23:07:54 -08:00
Jonathan Westhues ddbd0ff77b Add ability to represent our surfaces as either a shell or a mesh,
according to the user's preference. I templated the housekeeping
stuff for Boolean operations and step and repeat, so it's
relatively clean.

Still need to add the stuff to make a mesh vertex-to-vertex, and to
export sections of a mesh.

[git-p4: depot-paths = "//depot/solvespace/": change = 1959]
2009-05-24 03:37:07 -08:00
Jonathan Westhues 03ecbad981 Add beginnings of stuff to represent surfaces as either meshes or
exact surface shells. And add interference checking; I'll be lazy
and just do that on the meshes, by modifying the self-intersection
tester to ignore coplanar triangles (since that can happen in an
assembly).

[git-p4: depot-paths = "//depot/solvespace/": change = 1958]
2009-05-22 02:02:02 -08:00
Jonathan Westhues ddf9364257 Add a separate display mesh and edge list; so if we're working with
a mesh than that's a copy, and if we're working with a shell then
it's the shell's triangulation.

[git-p4: depot-paths = "//depot/solvespace/": change = 1957]
2009-05-21 01:06:26 -08:00
Jonathan Westhues b4dfb1aded Add code to assemble two shells into one, without checking for any
intersections or otherwise trying to make the result not
self-intersecting.

[git-p4: depot-paths = "//depot/solvespace/": change = 1955]
2009-05-19 19:04:36 -08:00
Jonathan Westhues bc6bdfade8 Save the exact surfaces in the exported file, and import and
transform them for assembly.

[git-p4: depot-paths = "//depot/solvespace/": change = 1954]
2009-05-18 23:26:38 -08:00
Jonathan Westhues 3581d9b9ec Construct surfaces of revolution from lathe groups, although we're
not triangulating them correctly yet.

[git-p4: depot-paths = "//depot/solvespace/": change = 1950]
2009-04-28 18:42:44 -08:00
Jonathan Westhues a4dc518a89 A monster change; move the parameter, entity, group, and constraint
tables from SolveSpace to their own class. This is intended to
simplify use of the constraint solver in a library.

[git-p4: depot-paths = "//depot/solvespace/": change = 1942]
2009-04-18 21:53:16 -08:00
Jonathan Westhues 71adc0bf54 Split ratpoly.cpp; now that contains only the mathematical stuff,
and curve.cpp and surface.cpp contain the rest.

Also get rid of the meshError stuff; will just use the nakedEdges
mechanism for that. And I won't run the interference test
continuously, have added a menu item for that.

[git-p4: depot-paths = "//depot/solvespace/": change = 1934]
2009-03-28 22:05:28 -08:00
Jonathan Westhues d4b842a242 Generate additional edges wherever a front- and back-facing
triangle join. And add controls to show and hide the solid model
edges (independently of the shaded mesh), and to suppress the
shaded triangles from SVG/EPS output.

[git-p4: depot-paths = "//depot/solvespace/": change = 1932]
2009-03-17 20:26:04 -08:00
Jonathan Westhues ed9f448398 Oops, need to remap plane face entities when stepping and repeating
shells.

[git-p4: depot-paths = "//depot/solvespace/": change = 1930]
2009-03-15 21:11:06 -08:00
Jonathan Westhues acadc0a918 Many changes:
* Rewrite surface handles in curves, so that Booleans beyond
      the first don't screw up.

    * If an intersection curve is identical to an existing curve
      (as happens when faces are coincident), take the piecewise
      linearization of the existing curve; this stops us from
      screwing up when different shells are pwl'd at different
      chord tols.

    * Hook up the plane faces again.

    * Remove coincident (parallel or anti-parallel) edges from the
      coincident-face edge lists when doing Booleans; those may
      happen if two faces are coincident with ours.

    * Miscellaneous bugfixes.

It doesn't seem to screw up very much now, although tangent edges
(and insufficient pwl resolution) may still cause problems.

[git-p4: depot-paths = "//depot/solvespace/": change = 1929]
2009-03-15 15:04:45 -08:00
Jonathan Westhues 07ddd62a3a Preparatory work for Boolean. Make the u and v coordinates of the
trim curves for all surfaces lie between 0 and 1. And add routines
to merge the curves and surfaces from two shells into one, and to
split the trim curves into their piecewise linear segments and then
reassemble them into trim curves.

[git-p4: depot-paths = "//depot/solvespace/": change = 1905]
2009-01-25 03:52:29 -08:00
Jonathan Westhues 2e4ec6dd04 Add sin and cos to the expression entry (for dimensions etc.), with
the same precedence as sqrt. Add the code to find naked edges, and
draw them highlighted on the model. And make the direction of trim
curves consistent, always ccw with normal toward viewer; so there's
no need to fix the directions before triangulating.

[git-p4: depot-paths = "//depot/solvespace/": change = 1903]
2009-01-25 01:19:59 -08:00
Jonathan Westhues bb4b767e99 Tear everything apart, moving away from meshes and toward shells.
Add stubs for functions to perform Booleans, and get rid of mesh
stuff, including the kd tree accelerated snap to vertex (which
should not be required if the shell triangulation performs as it
should).

Also check that a sketch is not self-intersecting before extruding
it or whatever. This is dead slow, needs n*log(n) implementation.

[git-p4: depot-paths = "//depot/solvespace/": change = 1902]
2009-01-22 19:30:30 -08:00
Jonathan Westhues ebca6130ec Early attempts at rational polynomial surfaces. I can create one
from an extrusion, with piecewise linear trim curves for everything
(that are shared, so that they appear only once for the two
surfaces that each trims). No Boolean operations on them, and the
triangulation is bad, because gl seems to merge collinear edges.

So before going further, I seem to need my own triangulation code.
I have not had great luck in the past, but I can't live without it
now.

[git-p4: depot-paths = "//depot/solvespace/": change = 1899]
2009-01-19 02:37:10 -08:00
Jonathan Westhues 25ed4e1ef1 SPolyCurve (i.e., polynomial curve) vs. SPolygon got too confusing;
let's call those Beziers instead.

[git-p4: depot-paths = "//depot/solvespace/": change = 1898]
2009-01-18 19:51:00 -08:00
Jonathan Westhues 0e623c90c0 Generate the group's polygon from the exact curves, not from edges;
so now we've got the exact curve loops, with their direction
standardized so that we can tell which direction is out. We still
need the polygon in any case, since that's a convenient way to find
each curve's winding number.

And remove some more leftover code from mesh sweeps.

[git-p4: depot-paths = "//depot/solvespace/": change = 1897]
2009-01-18 19:33:15 -08:00
Jonathan Westhues 7a874c20c0 Remove old sweep/helical sweep code for meshes, and add some
untested stuff to start making exact surface shells.

[git-p4: depot-paths = "//depot/solvespace/": change = 1896]
2009-01-16 21:28:49 -08:00
Jonathan Westhues bd0e97bad0 Now I can suppress an imported part; so the entities still show up,
but the mesh doesn't get combined. That effectively hides it, good
for looking inside and such.

[git-p4: depot-paths = "//depot/solvespace/": change = 1860]
2008-02-15 03:35:15 -08:00
Jonathan Westhues 1c66dca5ba Assemble polygons from imported groups too; so that lets you draw a
section, import it, and extrude it.

[git-p4: depot-paths = "//depot/solvespace/": change = 1859]
2008-02-13 08:15:33 -08:00
Jonathan Westhues 22b78e4427 Assemble the group polygon ourselves when exporting a DXF; that
lets us export open curves, if the user drew them that way.

Also increase the limits on how many pwls we will generate for a
single curve.

[git-p4: depot-paths = "//depot/solvespace/": change = 1854]
2008-02-10 04:43:48 -08:00
Jonathan Westhues 7b7d2f92e9 Add code to evaluate the volume of a mesh, thanks to the divergence
theorem; it's evaluated as a surface integral over each triangle.

And don't regenerate the emphasized edges unless we have to;
specifically, don't do it when the only dirty group is the
drawing group.

[git-p4: depot-paths = "//depot/solvespace/": change = 1849]
2008-02-07 01:53:52 -08:00
Jonathan Westhues 36870360cb Little stuff: show polygon assembly errors only for draw-in-plane
groups, rename "drawing" groups to "sketch" groups, and keep
assembling even after finding an open curve.

[git-p4: depot-paths = "//depot/solvespace/": change = 1835]
2008-07-13 01:57:46 -08:00
Jonathan Westhues b2f2f90a27 Add DXF export. The complexity comes from all the different ways to
specify the plane from which we want to grab the triangles. Shared
edges are then removed with the same code used to check for
watertight meshes, and the remaining edges are assembled into
polygons.

[git-p4: depot-paths = "//depot/solvespace/": change = 1823]
2008-07-07 22:30:13 -08:00
Jonathan Westhues cad77c9c47 Add routines to remove T intersections from the mesh, which are
introduced by the bsp routines. It's usually, though not always,
possible to generate a watertight mesh. The occasions where it's
not look ugly, floating point issues, no quick fix.

And use those to generate a list of edges where two different faces
meet, which I can emphasize for cosmetic reasons (and some UI to
specify whether to do that, and with what color).

And make the right mouse button rotate the model, since that was
previously doing nothing.

[git-p4: depot-paths = "//depot/solvespace/": change = 1821]
2008-07-05 23:56:24 -08:00