perspective and parallel projections. Add a snap grid, for points
and for text comments. Draw text comments in the plane of their
workplane if they have one, otherwise always facing forward.
And fix a few nasty bugs: the possibility of an extremely long
animation onto a workplane, accidental use of the wrong style line
width for constraints, misplaced text box in style screen for
default styles, other little stuff.
[git-p4: depot-paths = "//depot/solvespace/": change = 2037]
formats, with the proper color and width. This may need a bit of
cleanup for stuff like the hidden line removal, which currently
loses the style.
Also fix a bug in the test for arcs of a circle. A second-order
Bezier with collinear control points really is an arc, but it's an
arc with infinite radius so stuff tends to blow up. So return false
for that one.
[git-p4: depot-paths = "//depot/solvespace/": change = 2030]
line width units, on-screen and export visibility. So now we can
use that to modify the default styles, or to create custom styles.
Also add code to draw fat lines, with round endcaps, since gl
doesn't do that.
Next we need some user interface to assign styles to entities, and
to make all the export file formats support the style attributes.
[git-p4: depot-paths = "//depot/solvespace/": change = 2029]
check, hide the coordinate axes at the origin when normals are
hidden (but still show the coordinate axes at the bottom left of
the screen), and report point-line distance when a point and a line
are selected.
[git-p4: depot-paths = "//depot/solvespace/": change = 1973]
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]
tricky; can't just use the dot product, since that blows up when
you cross pi radians. A gear shift approach, use either sin or cos,
same kind of thing as the 3d-parallel constraint.
And report a NaN constraint as unconverged, of course.
[git-p4: depot-paths = "//depot/solvespace/": change = 1890]
some magic numbers. This would be trivial to break, but still more
difficult than patching the binary to skip the check...
[git-p4: depot-paths = "//depot/solvespace/": change = 1853]
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]
And fix a bug; wasn't asking the user whether to save before
abandoning file when a new file was opened recent.
[git-p4: depot-paths = "//depot/solvespace/": change = 1830]
version of the code from SketchFlat, with all arbitrary limits
removed.
The TTF text is its own entity, and that entity includes the
font file basename and the text. That's an extra 128 bytes in the
entity, which is around a 50% increase, kind of a shame. It was
simple, though.
[git-p4: depot-paths = "//depot/solvespace/": change = 1814]
liked, but my more parametric attempts were very difficult to use.
The pitch (both axial and radial) gets specified by typing a
distance in a textbox.
[git-p4: depot-paths = "//depot/solvespace/": change = 1804]
separate groups. The section is swept normal to the trajectory,
producing a mesh. I'm doing the triangles only now, not copying
over any entities.
Also fix a bug in the PNG export; rows are 4-aligned, so that was
breaking when the width of the image wasn't divisible by four. Also
fix a bug in lathes, where it generated overlapping triangles for
one segment.
And change the groups to record both "this mesh", the contribution
due to the extrude/lathe/whatever, and the "running mesh", that we
get after applying the requested Boolean op between "this mesh" and
the previous group's "running mesh". I'll use that to make step and
repeats step the mesh too.
[git-p4: depot-paths = "//depot/solvespace/": change = 1801]
that perspective in the gl matrices, and also everywhere that I
check mouse pointer positions against the model, and for the zoom
to fit.
[git-p4: depot-paths = "//depot/solvespace/": change = 1796]
an Expr *, since that complicates multiple units and also memory
management. Now it's just a double.
[git-p4: depot-paths = "//depot/solvespace/": change = 1791]
So fix that, and now I can simplify what's exported for an entity.
And add an extra measurement (face-face distance/angle), and some
other little stuff.
[git-p4: depot-paths = "//depot/solvespace/": change = 1789]
and rotates, auto-constrain translates in active workplane, speed
up remap list search with a hash table, other stuff.
[git-p4: depot-paths = "//depot/solvespace/": change = 1786]
just the mesh, no derived entities (but I suppose that I could turn
all points into circles).
And fix some bugs where equations didn't get unique IDs, and make
it possible to lock on to the group's workplane automatically, if
you press W while free in 3d with no workplane selected.
[git-p4: depot-paths = "//depot/solvespace/": change = 1780]
and requests to a separate list. It's messy, because I have to make
a deep copy (e.g. of the remap list for the groups, or Expr *
stuff) of some things. Others (e.g. the polygon or mesh) will be
regenerated, so they should be discarded, but they must not get
double-freed.
In any case, works superficially. And fix a few memory leaks
unrelated to this, and remove some dead code.
[git-p4: depot-paths = "//depot/solvespace/": change = 1775]
BSP stuff works. The failures are reported with red stripes and no
depth buffering, and in a message in the text window.
Also improve convergence of point-on-line constraints, and don't
write triangles to export files with limited precision, because
that was making the coplanar tests fail.
[git-p4: depot-paths = "//depot/solvespace/": change = 1774]
using the initial numerical guess of whichever vector is already
known to choose our projection planes.
And add a mechanism to defer showing the text window or
regenerating, in order to simplify dependencies on valid actives.
Also yes/no/cancel when about to abandon an unsaved file, and a
bugfix when rotating a rot/trans point.
[git-p4: depot-paths = "//depot/solvespace/": change = 1772]
becomes dirty when the user makes a change, and only the dirty
groups get solved. That's a huge effective speedup.
Also add delete function for groups. That has an interesting issue;
it actually ends up recursing on GenerateAll(), since GenerateAll()
calls ClearSuper(), ClearSuper() might need to recreate a group (if
all the groups were deleted), and that would activate the group,
which calls GenerateAll. The right solution is probably a deferred
execution mechanism, where you can schedule something to happen
before we go idle, but not do it right now.
[git-p4: depot-paths = "//depot/solvespace/": change = 1771]
in one place. And remove the ability to disable the solver, since
that's unlikely to be anything but confusing (and in any case, was
badly implemented). This is in preparation for selective solving,
of only the dirty groups.
[git-p4: depot-paths = "//depot/solvespace/": change = 1769]
solid red or yellow. And add user interface to `hide' the faces
(i.e., to make them unselectable), defaulting to hidden in
everything except extrudes or imports.
[git-p4: depot-paths = "//depot/solvespace/": change = 1768]
create a `new' stack-allocated instance of an object; just From,
possibly different versions with different arg types.
[git-p4: depot-paths = "//depot/solvespace/": change = 1763]
more starting work on the selectable faces, and fiddling in an
attempt to remove dependencies when stuff gets deleted.
[git-p4: depot-paths = "//depot/solvespace/": change = 1760]
case where you bolt a triangle onto a convex poly, and both
remaining edges of the tri are coincident with the neighbours from
the poly. That was a big source of zero-area triangles.
And tweak some colors a bit.
[git-p4: depot-paths = "//depot/solvespace/": change = 1758]
csg ops; so the union of a red part and a blue part has both red
and blue faces. And some user interface to pick the color in the
text window.
The metadata also include a face, which will be an entity; I can
use that to constrain against. But none of that is yet implemented.
[git-p4: depot-paths = "//depot/solvespace/": change = 1757]
part, including all of its entities and the triangle mesh. These
are transformed by a rotation and translation, and appear in the
sketch; the transformation may be set with constraints.
[git-p4: depot-paths = "//depot/solvespace/": change = 1756]
nicely. And to do that, I've added the user interface to show an
edit control in the text window.
[git-p4: depot-paths = "//depot/solvespace/": change = 1749]
so e.g. a new extrude starts in free space, which is likely what
you want. And default to an in-workplane group, and tweak the
display of workplanes.
[git-p4: depot-paths = "//depot/solvespace/": change = 1748]
and in the case of a singular Jacobian, report which constraints
can be removed to fix it. Also a mechanism to hover and select
entities and constraints from the text window.
[git-p4: depot-paths = "//depot/solvespace/": change = 1746]
implement that. Also make solver work only between the first and
last visible group; earlier can just work from previous solve
result, and later don't matter.
There's some issues with the csg code; it will eventually produce
an open mesh, which is very bad. Not sure whether that's a logic
bug, or a numerical issue; still generating absurd triangles pretty
routinely.
[git-p4: depot-paths = "//depot/solvespace/": change = 1741]
that's in a group that solves after the current group. This means
that the constraint/request gets deleted instantly, and stuff like
auto-constraints on the just-created entities blow up. I now check
that the active workplane comes from the active group or one solved
before it.
[git-p4: depot-paths = "//depot/solvespace/": change = 1729]
Jonathan Westhues