def test_write_mesh(self, geo_model):
mesh_header_size = 128
file_header_size = 86
ver, tri = geo_model.solutions.vertices[0], geo_model.solutions.edges[0]
ver_ravel, tri_ravel, n_vtx_coord, n_triangles = gtr.mesh_preprocess(ver, tri)
data_block_size_no_header = (n_vtx_coord + n_triangles) * 4 + mesh_header_size
# Write header
header_bytes = gtr.write_header_block(n_data_blocks=1,
size_data_blocks=data_block_size_no_header+gtr.rexDataBlockHeaderSize,
start_data=file_header_size)
# Write data block
data_bytes = gtr.write_data_block_header(size_data=data_block_size_no_header,
data_id=1, data_type=3, version_data=1)
# Write mesh block
mesh_header_bytes = gtr.write_mesh_header(n_vtx_coord/3, n_triangles/3,
start_vtx_coord=gtr.mesh_header_size,
start_nor_coord=gtr.mesh_header_size + n_vtx_coord*4,
start_tex_coord=gtr.mesh_header_size + n_vtx_coord*4,
start_vtx_colors=gtr.mesh_header_size + n_vtx_coord*4,
start_triangles=gtr.mesh_header_size + n_vtx_coord*4,
name='test_a')
mesh_block_bytes = gtr.write_mesh_coordinates(ver_ravel, tri_ravel)
all_bytes = header_bytes + data_bytes + mesh_header_bytes + mesh_block_bytes
if False:
gtr.write_file(all_bytes, './rexfiles/one_mesh_test')
def test_write_header(self):
header_bytes = gtr.write_header_block(3, 1)
if False:
gtr.write_file(header_bytes, './rexfiles/header_test')