generation - functions to generate mesh surfaces from lines or meshes¶
based on extrusion/transformation of a Web¶
- extrans(section, transformations, links) madcad.mesh.Mesh ¶
create a surface by extruding and transforming the given outline.
iterable of mat4, one each section
iterable of tuples (a,b,t) with:
(a,b)the sections to link (indices of values returned by
tthe group number of that link, to combine with the section groups
- extrusion(trans, line, alignment=0)¶
create a surface by extruding the given outline by a transformation
:param : line: a line (Web or Wire) or a surface (Mesh) to extrude :param : trans: any transformation object accepted by
mathutils.transform:param : alignment: when > 0 the line is extruded both sides (the transformation is linearly interpoled)
- revolution(angle, axis, profile, resolution=None)¶
create a revolution surface by extruding the given outline
stepsis the number of steps between the start and the end of the extrusion
- saddle(web1, web2)¶
create a surface by extruding outine1 translating each instance to the next point of outline2
- tube(outline, path, end=True, section=True)¶
create a tube surface by extrusing the outline along the path if section is True, there is a correction of the segments to keep the section undeformed by the curve
generation of common meshes¶
- square(axis, width: float) madcad.mesh.Mesh ¶
return a simple square with the given normal axis and square width. Useful to quickly create a cutplane
- brick(*args, **kwargs) madcad.mesh.Mesh ¶
a simple brick with rectangular sides
- icosahedron(center, radius) madcad.mesh.Mesh ¶
a simple icosahedron (see https://en.wikipedia.org/wiki/Icosahedron)
- icosphere(center, radius, resolution=None) madcad.mesh.Mesh ¶
a simple icosphere with an arbitrary resolution (see https://en.wikipedia.org/wiki/Geodesic_polyhedron).
Points are obtained from a subdivided icosahedron and reprojected on the desired radius.
- uvsphere(center, radius, alignment=dvec3(0, 0, 1), resolution=None) madcad.mesh.Mesh ¶
a simple uvsphere (simple sphere obtained with a revolution of an arc)
- inflateoffsets(surf, distance, method='face') [vec3] ¶
displacements vectors for points of a surface we want to inflate.
determines if the distance is from the old to the new faces, edges or points possible values:
'face', 'edge', 'point'
- inflate(surf, distance, method='face') madcad.mesh.Mesh ¶
move all points of the surface to make a new one at a certain distance of the last one
determines if the distance is from the old to the new faces, edges or points
- thicken(surf, thickness, alignment=0, method='face') madcad.mesh.Mesh ¶
thicken a surface by extruding it, points displacements are made along normal.
determines the distance between the two surfaces (can be negative to go the opposite direction to the normal).
specifies which side is the given surface: 0 is for the first, 1 for the second side, 0.5 thicken all apart the given surface.
determines if the thickness is from the old to the new faces, edges or points
- flatsurface(outline, normal=None) madcad.mesh.Mesh ¶
generates a surface for a flat outline using the prefered triangulation method .
normalis specified, it must be the normal vector to the plane, and will be used to orient the face.
- icosurface(pts, ptangents, resolution=None) madcad.mesh.Mesh ¶
generate a surface ICO (a subdivided triangle) with its points interpolated using interpol2tri.
If normals are given instead of point tangents (for ptangents), the surface will fit a sphere.
Else ptangents must be a list of couples (2 edge tangents each point).
- repeat(pattern, n, trans)¶
create a mesh duplicating n times the given pattern, each time applying the given transform.
can either be a
Wirethe return type will depend on the input type
the number of repetitions
is the transformation between each duplicate