def __map_Topography(self, planet, model, pts=[]):
height_map = PNMImage()
height_map_path = "{}/maps/{}".format(planet.path, planet.height_map)
height_map.read(Filename(height_map_path))
_hu_size = height_map.getXSize() - 1
_hv_size = height_map.getYSize() - 1
radius = planet.radius
bottom = radius + planet.height_min
elev_range = planet.height_max - planet.height_min
_has_sea = "sea_level" in planet.__dict__
if _has_sea:
sea_level = planet.sea_level + planet.radius
if not pts: pts = model.read("vertex")
for pt in pts:
u, v = self.__get_Pt_Uv(pt, _hu_size, _hv_size)
height_val = height_map.getGray(
u, v) ## watch when extending w colours.
height = bottom + elev_range * height_val
ratio = height / radius
pt *= ratio
# If planet has sea then raise vert to sea level.
if _has_sea:
len_pt = pt.length()
if len_pt <= sea_level:
ratio = sea_level / len_pt
pt *= ratio
model.modify("vertex", pts)
def __map_Topography(self, planet, model, pts=[]):
height_map = PNMImage()
height_map_path = "{}/maps/{}".format(planet.path, planet.height_map)
height_map.read(Filename(height_map_path))
_hu_size = height_map.getXSize()-1
_hv_size = height_map.getYSize()-1
radius = planet.radius
bottom = radius + planet.height_min
elev_range = planet.height_max - planet.height_min
_has_sea = "sea_level" in planet.__dict__
if _has_sea:
sea_level = planet.sea_level + planet.radius
if not pts: pts = model.read("vertex")
for pt in pts:
u, v = self.__get_Pt_Uv(pt, _hu_size, _hv_size)
height_val = height_map.getGray(u, v) ## watch when extending w colours.
height = bottom + elev_range*height_val
ratio = height / radius
pt *= ratio
# If planet has sea then raise vert to sea level.
if _has_sea:
len_pt = pt.length()
if len_pt <= sea_level:
ratio = sea_level/len_pt
pt *= ratio
model.modify("vertex", pts)
def load_terrain_map(self):
image = PNMImage()
if image.read(self.get_terrain_file_name()):
for y in range(self.patch.r_height):
for x in range(self.patch.r_width):
self.patch.set_height(x, y, image.getGray(x, y))
return True
else:
return False
