ROSE Math Library

Changes in release 18.0 (2018-08-01)

• Version 18 release.

• Pass through original value on unit conversion if either the starting or ending unit is declared as roseunit_as_is. Previously, we only checked ending unit.

• Added functions to project a point to a plane.
  • rose_pt_nearest_on_plane()
  • rose_pt_nearest_on_plane_uv()

Changes in release 17.1 (2017-12-29)

• Added RoseDelaunay2D::getPointCount() method.

• Updated RoseMeshFacetSet::getTriangleNormal to return a zero vector on degenerate triangles and tweaked tolerance for degenerate values.

• Speed improvement to vector normalize.

Changes in release 17.0 (2017-04-07)

• Update for major revision.

• Updated RoseMeshTopology to allow partial shells to be processed. (Useful for finding the boundaries of a set of facets.)

• Added RoseMeshXMLOpts to the XML writer API.

• Added bulletproofing against NULL values to topology handling code.

Changes in release 16.11 (2016-11-02)

• Updated topology validation to fail fast.

• Added getPoint method to RoseDelaunay code.

Changes in release 16.10 (2016-07-25)

• Release for NCPack 16.21

Changes in release 16.9 (2016-06-30)

• Added RoseMeshFacetSet::appendNullFacet, clearFacetsOnly.

• Added rose_mesh_set_color (for a mesh face).

Changes in release 16.8 (2016-06-01)

• Released as ST-Developer v16 SP4

• Updated mesh topology validation code to check for anti-parallel facets that share a single vertex

• Added overloads with RoseDirection and RosePoint to the put_x/y/zdir functions and rose_xform_put_origin.

• Added some constant arrays for ordinal directions to accompany the existing rose_vec_zero const array.
  • rose_vec_100
  • rose_vec_010
  • rose_vec_001

Changes in release 16.7 (2015-12-31)

• Added function to write mesh data in JSON format.

Changes in release 16.6 (2015-11-21)

• Version bump for ncpack 16.16

Changes in release 16.5 (2015-09-21)

• Updated RoseMeshTopologyVertexCursor to insure that the edges and vertices returned by getNext are return in counter-clockwise order.

• Added void MeshMeshTopologyVertexCursor::facetEdgeVertex.

• Update for ST-Developer v16 SP3

Changes in release 16.4 (2015-08-25)

Changes in release 16.3 (2015-08-19)

• Version bump for latest ncpack.

Changes in release 16.2 (2015-08-18)

• Updated delaunay functionality to specify two types of edges: border and internal. This is needed when refaceting triangles.

• Updated delaunay code to be more more robust numerically when computing the intersection of two small line segments by scaling the direction vector rather than using the existing values

• Update RoseMeshFacet::getFacetNormal to not crash when the facet index is ROSE_MESH_NULL_IDX

• Fixed bugs in rose_mesh_topology: grow vertex list when calling setFirstVertexFacet. Update growFacetList to take a size parameter, rather than the max facet to take (== sz+1).

• Updated RoseDelaunay2D::insertPoint to return ROSE_NOTFOUND when any of the points in the list could not be inserted.

Changes in release 16.1 (2015-07-24)

• Added topology query methods to RoseDelaunay2D: getEdgeCount(), getEdgeVertex(), getEdgeTriangle(), getTriangleEdge(), getTriangleVertex()

• Facet, Face, Face properties and FacetSet basics.

• Added RoseReal2DArray and RoseReal3DArray to handle lists of points and directions.

• Added cartesian transformation operator initialization logic and non-uniform scaling operations.

• Bounding box classes for 3D and 2D regions. Added bounds computation for lists of points, facets and entire meshes.

• Added rose_pt_midpoint(), centerpt() for the bounding boxes, and meshing XML output.

• Added 2D Delaunay triangularization helper class.

Changes in release 16.0 (2015-06-02)

• Matrix math, cross/dot products, etc for points, directions, and coordinate system transforms.

• Unit enums and value conversion.

• Initial version, collecting math code scattered across stix, stixmesh, stixsim, and ifc libraries. Bringing everything into one place, documenting, and making sure everything is properly tested.