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metrics

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add metrics functions in butils
This commit is contained in:
themancalledjakob 2024-08-07 11:54:38 +02:00
parent 1bcce247e0
commit b0dc8c8e71
1 changed files with 250 additions and 0 deletions
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250
butils.py
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@ -3,6 +3,7 @@ import mathutils
import queue
import importlib
import os
import re
# import time # for debugging performance
# then import dependencies for our addon
@ -559,6 +560,7 @@ def set_text_on_curve(text_properties):
if advance == next_line_advance:
# self.report({'INFO'}, f"would like to add new line for {text_properties.text} please")
print(f"would like to add new line for {text_properties.text} please")
# TODO: add a new line
advance = next_line_advance
continue
is_command = False
@ -643,3 +645,251 @@ def set_text_on_curve(text_properties):
# elapsedtime = endtime - starttime
return True
# blender bound_box vertices
#
# 3------7.
# |`. | `. +y
# | `2------6 -z |
# | | | | `. |
# 0---|--4. | `+--- +x
# `. | `.|
# `1------5
def add_metrics_obj_from_bound_box(glyph, bound_box=None):
mesh = bpy.data.meshes.new(f"{glyph.name}_metrics") # add the new mesh
obj = bpy.data.objects.new(mesh.name, mesh)
col = glyph.users_collection[0]
col.objects.link(obj)
# bpy.context.view_layer.objects.active = obj
obj.parent = glyph
if type(bound_box) == type(None):
bound_box = glyph.bound_box
verts = [bound_box[0],
bound_box[1],
bound_box[2],
bound_box[3],
bound_box[4],
bound_box[5],
bound_box[6],
bound_box[7],
]
edges = [[0,1],[1,2],[2,3],[3,0],
[0,4],[1,5],[2,6],[3,7],
[4,5],[5,6],[6,7],[7,4],
]
faces = []
mesh.from_pydata(verts, edges, faces)
def is_mesh(o):
return type(o.data) == bpy.types.Mesh
def is_metrics_object(o):
return (re.match("[\w]*_metrics$", o.name) != None or re.match("[\w]*_metrics.[\d]{3}$", o.name) != None) and is_mesh(o)
def is_glyph(o):
try:
return type(o.parent) is not type(None) \
and "glyphs" in o.parent.name \
and is_mesh(o) \
and not is_metrics_object(o)
except ReferenceError as e:
return False
# duplicate
# def remove_metrics_from_selection():
# for o in bpy.context.selected_objects:
# is_possibly_glyph = is_mesh(o)
# if is_possibly_glyph:
# metrics = []
# for c in o.children:
# if is_metrics_object(c):
# metrics.append(c)
# completely_delete_objs(metrics)
def get_max_bound_box(bb_1, bb_2 = None):
if type(bb_2) == type(None):
bb_2 = bb_1
x_max = max(bb_1[4][0], bb_2[4][0])
x_min = min(bb_1[0][0], bb_2[0][0])
y_max = max(bb_1[3][1], bb_2[3][1])
y_min = min(bb_1[0][1], bb_2[0][1])
z_max = max(bb_1[1][2], bb_2[1][2])
z_min = min(bb_1[0][2], bb_2[0][2])
return [
mathutils.Vector((x_min, y_min, z_min)),
mathutils.Vector((x_min, y_min, z_max)),
mathutils.Vector((x_min, y_max, z_max)),
mathutils.Vector((x_min, y_max, z_min)),
mathutils.Vector((x_max, y_min, z_min)),
mathutils.Vector((x_max, y_min, z_max)),
mathutils.Vector((x_max, y_max, z_max)),
mathutils.Vector((x_max, y_max, z_min)),
]
# blender bound_box vertices
#
# 3------7.
# |`. | `. +y
# | `2------6 |
# | | | | |
# 0---|--4. | +--- +x
# `. | `.| `.
# `1------5 `+z
# why not [ [0] * 3 ] * 8
# https://stackoverflow.com/questions/2397141/how-to-initialize-a-two-dimensional-array-list-of-lists-if-not-using-numpy-in
def bound_box_as_array(bound_box):
array = [ [0] * 3 for i in range(8) ]
for i in range(0, len(bound_box)):
for j in range(0, len(bound_box[i])):
array[i][j] = bound_box[i][j]
return array
##
# @brief get_metrics_bound_box
# generates a metrics bounding box
# where x-width comes from bb
# and y-height + z-depth from bb_uebermetrics
#
# @param bb
# @param bb_uebermetrics
#
# @return metrics
def get_metrics_bound_box(bb, bb_uebermetrics):
metrics = [[0] * 3] * 8
# hurrays
if type(bb_uebermetrics) == bpy.types.bpy_prop_array:
metrics = bound_box_as_array(bb_uebermetrics)
else:
metrics = bb_uebermetrics.copy()
metrics[0][0] = bb[0][0]
metrics[1][0] = bb[1][0]
metrics[2][0] = bb[2][0]
metrics[3][0] = bb[3][0]
metrics[4][0] = bb[4][0]
metrics[5][0] = bb[5][0]
metrics[6][0] = bb[6][0]
metrics[7][0] = bb[7][0]
return metrics
def add_default_metrics_to_objects(objects=None, overwrite_existing=False):
if type(objects) == type(None):
objects=bpy.context.selected_objects
targets = []
reference_bound_box = None
for o in objects:
is_possibly_glyph = is_glyph(o)
if is_possibly_glyph:
metrics = []
for c in o.children:
if is_metrics_object(c):
metrics.append(c)
if len(metrics) == 0:
targets.append(o)
reference_bound_box = get_max_bound_box(o.bound_box, reference_bound_box)
elif len(metrics) >= 0 and overwrite_existing:
completely_delete_objs(metrics)
targets.append(o)
reference_bound_box = get_max_bound_box(o.bound_box, reference_bound_box)
else:
for m in metrics:
reference_bound_box = get_max_bound_box(m.bound_box, reference_bound_box)
for t in targets:
bound_box = get_metrics_bound_box(t.bound_box, reference_bound_box)
add_metrics_obj_from_bound_box(t, bound_box)
def remove_metrics_from_objects(objects=None):
if type(objects) == type(None):
objects=bpy.context.selected_objects
metrics = []
for o in objects:
for c in o.children:
if is_metrics_object(c):
metrics.append(c)
completely_delete_objs(metrics)
def align_metrics_of_objects_to_active_object(objects=None):
if type(objects) == type(None):
objects=bpy.context.selected_objects
if len(objects) == 0:
return "no objects selected"
# define the reference_bound_box
reference_bound_box = None
if type(bpy.context.active_object) == type(None):
return "no active_object, but align_to_active_object is True"
for c in bpy.context.active_object.children:
if is_metrics_object(c):
reference_bound_box = bound_box_as_array(c.bound_box)
break
if type(reference_bound_box) == type(None):
if not is_mesh(bpy.context.active_object):
return "active_object is not a mesh and does not have a metrics child"
reference_bound_box = bound_box_as_array(bpy.context.active_object.bound_box)
# do it
for o in objects:
is_possibly_glyph = is_glyph(o)
if is_possibly_glyph:
metrics = []
for c in o.children:
if is_metrics_object(c):
metrics.append(c)
bb = None
if len(metrics) == 0:
bb = get_metrics_bound_box(o.bound_box,
reference_bound_box)
else:
bb = get_metrics_bound_box(metrics[0].bound_box,
reference_bound_box)
if len(metrics) > 0:
completely_delete_objs(metrics)
add_metrics_obj_from_bound_box(o, bb)
return ""
def align_metrics_of_objects(objects=None):
if type(objects) == type(None):
objects=bpy.context.selected_objects
if len(objects) == 0:
return "no objects selected"
targets = []
reference_bound_box = None
for o in objects:
is_possibly_glyph = is_glyph(o)
if is_possibly_glyph:
metrics = []
for c in o.children:
if is_metrics_object(c):
metrics.append(c)
if len(metrics) == 0:
reference_bound_box = get_max_bound_box(o.bound_box,
reference_bound_box)
elif len(metrics) > 0:
reference_bound_box = get_max_bound_box(metrics[0].bound_box,
reference_bound_box)
targets.append(o)
for t in targets:
metrics = []
for c in t.children:
if is_metrics_object(c):
metrics.append(c)
bound_box = None
if len(metrics) == 0:
bound_box = get_metrics_bound_box(t.bound_box,
reference_bound_box)
else:
bound_box = get_metrics_bound_box(metrics[0].bound_box,
reference_bound_box)
completely_delete_objs(metrics)
add_metrics_obj_from_bound_box(t, bound_box)
return ""