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]
as a constraint on the direction cosine, rather than driving the
dot product against a rotated vector to zero. The drawing is the
ugly part; to do that for skew lines, I gave up.
Also add a function to clear non-existent items on the selection
after solving, since that could have caused an oops().
[git-p4: depot-paths = "//depot/solvespace/": change = 1727]
the coordinate system (x, y, z normal vectors) in the bottom left
corner of the screen at all times, and hide group-created
workplanes except when that group is active, and activate that
workplane when the group is activated.
[git-p4: depot-paths = "//depot/solvespace/": change = 1726]
sketch (e.g., a line whose length is constrained gets deleted, but
the constraint is left behind; or the point that's the origin for a
drawing group in plane gets deleted), then deleted the dependencies
too.
[git-p4: depot-paths = "//depot/solvespace/": change = 1725]
vectors", represented by unit quaternions. This permits me to add
circles, where the normal defines the plane of the circle.
Still many things painful. The interface for editing normals is not
so intuitive, and it's not yet clear how I would e.g. export a
circle entity and recreate it properly, since that entity has a
param not associated with a normal or point.
And the transformed points/normals do not yet support rotations.
That will be necessary soon.
[git-p4: depot-paths = "//depot/solvespace/": change = 1705]
faces of the polyhedron. And shade the faces when I draw them, and
fix up our projection matrix so that the depth testing works
properly.
[git-p4: depot-paths = "//depot/solvespace/": change = 1703]
not have much motivation behind them, but they seem to work. And
make sure that we don't solve multiple times without repainting in
between, and tweak the text window a bit more.
[git-p4: depot-paths = "//depot/solvespace/": change = 1696]
foreground and background colours are now specified separately, and
it's possible to insert half-line spaces. So now I have a window
that lets me show/hide groups, and select the active one.
[git-p4: depot-paths = "//depot/solvespace/": change = 1695]
other entities. This requires a new point type, for a point that's
defined as a transformation of some other point. All works nicely,
I think. There's ugliness because entities are no longer guaranteed
to have a parent request.
Also speed up display of the text window, by caching brushes
instead of recreating for each character (!), and add a bit more
user interface in the text window.
[git-p4: depot-paths = "//depot/solvespace/": change = 1692]
locked on to the XY plane. And simplify the handling of colors in
the text window: identify them by a character, not an integer ID,
since the character is easier to remember.
[git-p4: depot-paths = "//depot/solvespace/": change = 1687]
stuff, though no file load stuff, and perhaps this can all be made
to work from a table somehow. Move the quaternion stuff into its
own class, and add a fancy animated view when you orient onto a
csys.
[git-p4: depot-paths = "//depot/solvespace/": change = 1672]
expressions that we wish to keep around. And make the 2d coordinate
system (that causes points to generate 2 unknowns, not 3) an
attribute of the request, not the group, and add user interface to
change that.
[git-p4: depot-paths = "//depot/solvespace/": change = 1670]
syntax tree. That's what I'll used for entered dimensions, and
algebraic constraints and such. Needs to be extended to handle
stuff like points and entities, but I think that it can be.
[git-p4: depot-paths = "//depot/solvespace/": change = 1669]
the plane basis vectors) work, easy. Tweak the text window a bit,
for cosmetics, and start to add the symbolic expression code.
[git-p4: depot-paths = "//depot/solvespace/": change = 1667]
Jonathan Westhues