star-cad

commit 1e871accee115e344204bd5da66dfcc8e2ab5114
parent b3e3af653cdbdcd3b2c0cb44ec11d1bb5c951c3c
Author: Christophe Coustet <christophe.coustet@meso-star.com>
Date:   Thu, 12 Dec 2024 09:57:42 +0100

Add an API call to clear the mesh for some geometries

Diffstat:
M
src/scad.h
 | 
8
++++++++
M
src/scad_geometry.c
 | 
33
+++++++++++++++++++++++++++++++++

2 files changed, 41 insertions(+), 0 deletions(-)
diff --git a/src/scad.h b/src/scad.h
@@ -548,6 +548,14 @@ SCAD_API res_T
 scad_scene_mesh
   (void);
 
+/* Clear the mesh of the geometries in `geometries'.
+ * Note that the mesh of a geometry can only be cleared if it is not on the
+ * boundary of another geometry with a non-empty mesh. */
+SCAD_API res_T
+scad_geometries_clear_mesh
+  (struct scad_geometry** geometries,
+   const size_t geometries_count);
+
 /* Get the normal of the geometry `geom' at position `p'.
  * The normal is set in `N' and the underlying 2D entity to which `p' belongs is
  * returned as a new geometry in `out_geometry'. */
diff --git a/src/scad_geometry.c b/src/scad_geometry.c
@@ -522,6 +522,39 @@ error:
 }
 
 res_T
+scad_geometries_clear_mesh
+  (struct scad_geometry** geometries,
+   const size_t geometries_count)
+{
+  res_T res = RES_OK;
+  int ierr;
+  size_t sz;
+  int* data = NULL;
+  struct scad_device* dev = get_device();
+  struct mem_allocator* allocator = NULL;
+
+  if(!geometries) {
+    res = RES_BAD_ARG;
+    goto error;
+  }
+
+  ERR(check_device(FUNC_NAME));
+
+  allocator = dev->allocator;
+  ERR(gather_tags(geometries, geometries_count, &data, &sz));
+  gmshModelMeshClear(data, sz, &ierr);
+  ERR(gmsh_err_to_res_T(ierr));
+
+  dev->need_synchro = 1;
+
+exit:
+  if(allocator) MEM_RM(allocator, data);
+  return res;
+error:
+  goto exit;
+}
+
+res_T
 scad_geometry_get_name
   (const struct scad_geometry* geom,
    const char** name)