def main(argv):
"""
Try to be as similar to the original C source code as possible. There's a
lot of python sugar and python magic that isn't being invoked here.
"""
# TODO: support native python lists
p1 = (ctypes.c_double * 3)()
p2 = (ctypes.c_double * 3)()
rgb = (ctypes.c_double * 3)()
# TODO: wdb_fopen wasn't in wdb.h
db_fp = wdb.wdb_fopen(argv[1])
# create the database header record
wdb.mk_id(db_fp, "My Database")
# All units in the database file are stored in millimeters. This constrains
# the arguments to the mk_* routines to also be in millimeters.
# make a sphere centered at 1.0, 2.0, 3.0 with radius 0.75
p1[:] = [1.0, 2.0, 3.0]
wdb.mk_sph(db_fp, "ball.s", p1, 0.75)
# Make an rpp under the sphere (partly overlapping). NOte that this realy
# makes an arb8, but gives us a shortcut for specifying the parameters.
p1[:] = [0, 0, 0]
p2[:] = [2, 4, 2.5]
wdb.mk_rpp(db_fp, "box.s", p1, p2)
# Make a region that is the union of these two objectsion. To accomplish
# this, we need to create a linked list of the items that make up the
# combination. The wm_hd structure serves as the head of the list of items.
wm_hd = wdb.wmember()
somelistp = wdb.bu_list_new()
wdb.mk_pipe_init(somelistp) # calls BU_LIST_INIT(headp)
somelistp.contents.magic = 0x01016580 # BU_LIST_HEAD_MAGIC
# Create a wmember structure for each of the items that we want in the
# combination. The return from mk_addmember is a pointer to the wmember
# structure.
some_wmember = wdb._libs['/usr/brlcad/lib/libwdb.so'].mk_addmember("box.s", somelistp, wdb.NULL, ord("u"))
# Add the second member to the database.
#
# Note that there is nothing which checks to make sure that "ball.s" exists
# in the database when you create the wmember structure OR when you create
# the combination. So mis-typing the name of a sub-element for a
# region/combination can be a problem.
another_wmember = wdb._libs['/usr/brlcad/lib/libwdb.so'].mk_addmember("ball.s", somelistp, wdb.NULL, ord("u"))
# Create the combination
#
# In this case we are going to make it a region (hence the is_region flag
# is set), and we provide shader parameter information.
#
# When making a combination that is NOT a region, the region flag argument
# is 0, and the strings for optical shader, and shader parameters should
# (in general) be null pointers.
is_region = 1
rgb[:] = [64, 180, 96] # a nice green
wdb.mk_comb(
db_fp,
"box_n_ball.r", # name of the db element created
somelistp, # list of elements and boolean operations
is_region, # flag: this is a region
"plastic", # optical shader
"di=.8 sp=.2", # shader parameters
rgb, # item color
0, 0, 0,
0, 0, 0,
0)
wdb.make_hole(db_fp, p1, p2, 0.75, 0, 0)
# TDOO: fix this one, wdb_close wasn't in wdb.h
wdb._libs["/usr/brlcad/lib/libwdb.so"].wdb_close(db_fp)
def main(argv):
"""
Try to be as similar to the original C source code as possible. There's a
lot of python sugar and python magic that isn't being invoked here.
"""
# TODO: support native python lists
p1 = (ctypes.c_double * 3)()
p2 = (ctypes.c_double * 3)()
rgb = (ctypes.c_double * 3)()
# TODO: wdb_fopen wasn't in wdb.h
db_fp = wdb._libs[wdb._libs.keys()[0]].wdb_fopen(argv[1])
#db_fp = wdb.wdb_fopen(argv[1])
# create the database header record
wdb.mk_id(db_fp, "My Database")
# All units in the database file are stored in millimeters. This constrains
# the arguments to the mk_* routines to also be in millimeters.
# make a sphere centered at 1.0, 2.0, 3.0 with radius 0.75
p1[:] = [1.0, 2.0, 3.0]
wdb.mk_sph(db_fp, "ball.s", p1, 0.75)
# Make an rpp under the sphere (partly overlapping). NOte that this realy
# makes an arb8, but gives us a shortcut for specifying the parameters.
p1[:] = [0, 0, 0]
p2[:] = [2, 4, 2.5]
wdb.mk_rpp(db_fp, "box.s", p1, p2)
# Make a region that is the union of these two objectsion. To accomplish
# this, we need to create a linked list of the items that make up the
# combination. The wm_hd structure serves as the head of the list of items.
wm_hd = wdb.wmember()
somelistp = wdb.bu_list_new()
wdb.mk_pipe_init(somelistp) # calls BU_LIST_INIT(headp)
somelistp.contents.magic = 0x01016580 # BU_LIST_HEAD_MAGIC
# Create a wmember structure for each of the items that we want in the
# combination. The return from mk_addmember is a pointer to the wmember
# structure.
some_wmember = wdb._libs['/usr/brlcad/lib/libwdb.so'].mk_addmember("box.s", somelistp, wdb.NULL, ord("u"))
# Add the second member to the database.
#
# Note that there is nothing which checks to make sure that "ball.s" exists
# in the database when you create the wmember structure OR when you create
# the combination. So mis-typing the name of a sub-element for a
# region/combination can be a problem.
another_wmember = wdb._libs['/usr/brlcad/lib/libwdb.so'].mk_addmember("ball.s", somelistp, wdb.NULL, ord("u"))
# Create the combination
#
# In this case we are going to make it a region (hence the is_region flag
# is set), and we provide shader parameter information.
#
# When making a combination that is NOT a region, the region flag argument
# is 0, and the strings for optical shader, and shader parameters should
# (in general) be null pointers.
is_region = 1
rgb[:] = [64, 180, 96] # a nice green
wdb.mk_comb(
db_fp,
"box_n_ball.r", # name of the db element created
somelistp, # list of elements and boolean operations
is_region, # flag: this is a region
"plastic", # optical shader
"di=.8 sp=.2", # shader parameters
rgb, # item color
0, 0, 0,
0, 0, 0,
0)
wdb.make_hole(db_fp, p1, p2, 0.75, 0, 0)
# TODO fix this one, wdb_close wasn't in wdb.h
wdb._libs[wdb._libs.keys()[0]].wdb_close(db_fp)
def main(argv):
p1 = (ctypes.c_double * 3)()
rgb = (ctypes.c_double * 3)()
initialSize = 900.0
finalSize = 1000.0
stepSize = 10.0
currentSize = 0.0
counter = 0
name = ""
solidName = ""
prevSolid = ""
shaderparams = ""
wm_hd = wdb.wmember() # These are probably not necessary.
bigList = wdb.wmember()
db_fp = wdb.wdb_fopen(argv[1])
wdb.mk_id(db_fp, "Globe Database") # Create the database header record
# Make a region that is the union of these two objectsion. To accomplish
# this, we need to create a linked list of the items that make up the
# combination. The wm_hd structure serves as the head of the list of items.
somelistp = wdb.bu_list_new()
biglistp = wdb.bu_list_new()
# make the CORE of the globe with a given color
p1[:] = [0, 0, 0]
rgb[:] = [130, 253, 194] # some green
is_region = 1
# make a sphere centered at 1.0, 2.0, 3.0 with radius .75
wdb.mk_sph(db_fp, "land.s", p1, initialSize)
wdb._libs.values()[0].mk_addmember("land.s", somelistp, wdb.NULL, ord("u"))
wdb.mk_comb(db_fp,
"land.c",
somelistp,
is_region,
"",
"",
rgb,
0, 0, 0,
0, 0, 0,
0)
wdb._libs.values()[0].mk_addmember("land.s", somelistp, wdb.NULL, ord("u"))
wdb.mk_comb(db_fp,
"land.r",
somelistp,
is_region,
"plastic",
"di=.8 sp=.2",
rgb,
0, 0, 0,
0, 0, 0,
0)
# make the AIR of the globe with a given color
rgb[:] = [130, 194, 253] # a light blue
prevSolid = "land.s"
counter = 0
currentSize = initialSize + stepSize
while currentSize < finalSize:
somelistp = wdb.bu_list_new()
solidName = "air.%d.s" % counter
wdb.mk_sph(db_fp, solidName, p1, currentSize)
wdb.mk_addmember(solidName, somelistp, wdb.NULL, ord("u"))
wdb.mk_addmember(prevSolid, somelistp, wdb.NULL, ord("-"))
# make the spatial combination
name = "air.%d.c" % counter
wdb.mk_comb(db_fp,
name,
somelistp,
0,
wdb.NULL,
wdb.NULL,
wdb.NULL,
0, 0, 0,
0, 0, 0,
0)
wdb.mk_addmember(name, somelistp, wdb.NULL, ord("u"))
# make the spatial region
name = "air.%d.r" % counter
shaderparams = "{tr %f}" % float(currentSize/finalSize)
wdb.mk_comb(db_fp,
name,
somelistp,
is_region,
"plastic",
shaderparams,
rgb,
0, 0, 0,
0, 0, 0,
0)
# add the region to a master region list
wdb.mk_addmember(name, biglistp, wdb.NULL, ord("u"))
# keep track of the last combination we made for the next iteration
prevSolid = solidName
counter += 1
currentSize += stepSize
# make one final air region that comprises all the air regions
wdb.mk_comb(db_fp,
"air.c",
biglistp,
0,
wdb.NULL,
wdb.NULL,
wdb.NULL,
0, 0, 0,
0, 0, 0,
0)
# Create the master globe region
#
# In this case we are going to make it a region (hence the
# is_region flag is set, and we provide shader parameter information.
#
# When making a combination that is NOT a region, the region flag
# argument is 0, and the strings for optical shader, and shader
# parameters should (in general) be null pointers.
#
# add the land to the main globe object that gets created at the end
somelistp = wdb.bu_list_new()
wdb.mk_addmember("land.r", somelistp, wdb.NULL, ord("u"))
wdb.mk_addmember("air.c", somelistp, wdb.NULL, ord("u"))
wdb.mk_comb(db_fp,
"globe.r",
somelistp,
is_region,
wdb.NULL,
wdb.NULL,
wdb.NULL,
0, 0, 0,
0, 0, 0,
0)
wdb._libs.values()[0].wdb_close(db_fp)
return 0
def main(argv):
p1 = (ctypes.c_double * 3)()
rgb = (ctypes.c_double * 3)()
initialSize = 900.0
finalSize = 1000.0
stepSize = 10.0
currentSize = 0.0
counter = 0
name = ""
solidName = ""
prevSolid = ""
shaderparams = ""
wm_hd = wdb.wmember() # These are probably not necessary.
bigList = wdb.wmember()
db_fp = wdb.wdb_fopen(argv[1])
wdb.mk_id(db_fp, "Globe Database") # Create the database header record
# Make a region that is the union of these two objectsion. To accomplish
# this, we need to create a linked list of the items that make up the
# combination. The wm_hd structure serves as the head of the list of items.
somelistp = wdb.bu_list_new()
biglistp = wdb.bu_list_new()
# make the CORE of the globe with a given color
p1[:] = [0, 0, 0]
rgb[:] = [130, 253, 194] # some green
is_region = 1
# make a sphere centered at 1.0, 2.0, 3.0 with radius .75
wdb.mk_sph(db_fp, "land.s", p1, initialSize)
wdb._libs.values()[0].mk_addmember("land.s", somelistp, wdb.NULL, ord("u"))
wdb.mk_comb(db_fp, "land.c", somelistp, is_region, "", "", rgb, 0, 0, 0, 0,
0, 0, 0)
wdb._libs.values()[0].mk_addmember("land.s", somelistp, wdb.NULL, ord("u"))
wdb.mk_comb(db_fp, "land.r", somelistp, is_region, "plastic",
"di=.8 sp=.2", rgb, 0, 0, 0, 0, 0, 0, 0)
# make the AIR of the globe with a given color
rgb[:] = [130, 194, 253] # a light blue
prevSolid = "land.s"
counter = 0
currentSize = initialSize + stepSize
while currentSize < finalSize:
somelistp = wdb.bu_list_new()
solidName = "air.%d.s" % counter
wdb.mk_sph(db_fp, solidName, p1, currentSize)
wdb.mk_addmember(solidName, somelistp, wdb.NULL, ord("u"))
wdb.mk_addmember(prevSolid, somelistp, wdb.NULL, ord("-"))
# make the spatial combination
name = "air.%d.c" % counter
wdb.mk_comb(db_fp, name, somelistp, 0, wdb.NULL, wdb.NULL, wdb.NULL, 0,
0, 0, 0, 0, 0, 0)
wdb.mk_addmember(name, somelistp, wdb.NULL, ord("u"))
# make the spatial region
name = "air.%d.r" % counter
shaderparams = "{tr %f}" % float(currentSize / finalSize)
wdb.mk_comb(db_fp, name, somelistp, is_region, "plastic", shaderparams,
rgb, 0, 0, 0, 0, 0, 0, 0)
# add the region to a master region list
wdb.mk_addmember(name, biglistp, wdb.NULL, ord("u"))
# keep track of the last combination we made for the next iteration
prevSolid = solidName
counter += 1
currentSize += stepSize
# make one final air region that comprises all the air regions
wdb.mk_comb(db_fp, "air.c", biglistp, 0, wdb.NULL, wdb.NULL, wdb.NULL, 0,
0, 0, 0, 0, 0, 0)
# Create the master globe region
#
# In this case we are going to make it a region (hence the
# is_region flag is set, and we provide shader parameter information.
#
# When making a combination that is NOT a region, the region flag
# argument is 0, and the strings for optical shader, and shader
# parameters should (in general) be null pointers.
#
# add the land to the main globe object that gets created at the end
somelistp = wdb.bu_list_new()
wdb.mk_addmember("land.r", somelistp, wdb.NULL, ord("u"))
wdb.mk_addmember("air.c", somelistp, wdb.NULL, ord("u"))
wdb.mk_comb(db_fp, "globe.r", somelistp, is_region, wdb.NULL, wdb.NULL,
wdb.NULL, 0, 0, 0, 0, 0, 0, 0)
wdb._libs.values()[0].wdb_close(db_fp)
return 0
