[Bf-extensions-cvs] [0f23407] master: mesh_snap_utilities_line: Moved from addons-contrib repository
Germano Cavalcante
noreply at git.blender.org
Sat Apr 8 15:47:18 CEST 2017
Commit: 0f23407c39ee670d24729f5f3ccc527881be548c
Author: Germano Cavalcante
Date: Sat Apr 8 10:46:54 2017 -0300
Branches: master
https://developer.blender.org/rBA0f23407c39ee670d24729f5f3ccc527881be548c
mesh_snap_utilities_line: Moved from addons-contrib repository
===================================================================
A mesh_snap_utilities_line.py
===================================================================
diff --git a/mesh_snap_utilities_line.py b/mesh_snap_utilities_line.py
new file mode 100644
index 0000000..2e07fa8
--- /dev/null
+++ b/mesh_snap_utilities_line.py
@@ -0,0 +1,1031 @@
+### BEGIN GPL LICENSE BLOCK #####
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 3
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# ##### END GPL LICENSE BLOCK #####
+
+# Contact for more information about the Addon:
+# Email: germano.costa at ig.com.br
+# Twitter: wii_mano @mano_wii
+
+bl_info = {
+ "name": "Snap_Utilities_Line",
+ "author": "Germano Cavalcante",
+ "version": (5, 7, 1),
+ "blender": (2, 75, 0),
+ "location": "View3D > TOOLS > Snap Utilities > snap utilities",
+ "description": "Extends Blender Snap controls",
+ "wiki_url" : "http://blenderartists.org/forum/showthread.php?363859-Addon-CAD-Snap-Utilities",
+ "tracker_url": "https://developer.blender.org/maniphest/task/edit/form/2/",
+ "category": "Mesh"}
+
+import bpy, bgl, bmesh
+from mathutils import Vector
+from mathutils.geometry import (
+ intersect_point_line,
+ intersect_line_line,
+ intersect_line_plane,
+ intersect_ray_tri)
+
+def get_units_info(scale, unit_system, separate_units):
+ if unit_system == 'METRIC':
+ scale_steps = ((1000, 'km'), (1, 'm'), (1 / 100, 'cm'),
+ (1 / 1000, 'mm'), (1 / 1000000, '\u00b5m'))
+ elif unit_system == 'IMPERIAL':
+ scale_steps = ((5280, 'mi'), (1, '\''),
+ (1 / 12, '"'), (1 / 12000, 'thou'))
+ scale /= 0.3048 # BU to feet
+ else:
+ scale_steps = ((1, ' BU'),)
+ separate_units = False
+
+ return (scale, scale_steps, separate_units)
+
+def convert_distance(val, units_info, precision = 5):
+ scale, scale_steps, separate_units = units_info
+ sval = val * scale
+ idx = 0
+ while idx < len(scale_steps) - 1:
+ if sval >= scale_steps[idx][0]:
+ break
+ idx += 1
+ factor, suffix = scale_steps[idx]
+ sval /= factor
+ if not separate_units or idx == len(scale_steps) - 1:
+ dval = str(round(sval, precision)) + suffix
+ else:
+ ival = int(sval)
+ dval = str(round(ival, precision)) + suffix
+ fval = sval - ival
+ idx += 1
+ while idx < len(scale_steps):
+ fval *= scale_steps[idx - 1][0] / scale_steps[idx][0]
+ if fval >= 1:
+ dval += ' ' \
+ + ("%.1f" % fval) \
+ + scale_steps[idx][1]
+ break
+ idx += 1
+ return dval
+
+def location_3d_to_region_2d(region, rv3d, coord):
+ prj = rv3d.perspective_matrix * Vector((coord[0], coord[1], coord[2], 1.0))
+ width_half = region.width / 2.0
+ height_half = region.height / 2.0
+ return Vector((width_half + width_half * (prj.x / prj.w),
+ height_half + height_half * (prj.y / prj.w),
+ prj.z / prj.w
+ ))
+
+def fac_nearest_to_segment_2d(co2v, v2d0, v2d1):
+ u = v2d1.xy - v2d0.xy
+ h = co2v.xy - v2d0.xy
+ return u.dot(h) / u.length_squared
+
+def region_2d_to_orig_and_view_vector(region, rv3d, coord, clamp=None):
+ viewinv = rv3d.view_matrix.inverted()
+ persinv = rv3d.perspective_matrix.inverted()
+
+ dx = (2.0 * coord[0] / region.width) - 1.0
+ dy = (2.0 * coord[1] / region.height) - 1.0
+
+ if rv3d.is_perspective:
+ origin_start = viewinv.translation.copy()
+
+ out = Vector((dx, dy, -0.5))
+
+ w = out.dot(persinv[3].xyz) + persinv[3][3]
+
+ view_vector = ((persinv * out) / w) - origin_start
+ else:
+ view_vector = -viewinv.col[2].xyz
+
+ origin_start = ((persinv.col[0].xyz * dx) +
+ (persinv.col[1].xyz * dy) +
+ viewinv.translation)
+
+ if clamp != 0.0:
+ if rv3d.view_perspective != 'CAMERA':
+ # this value is scaled to the far clip already
+ origin_offset = persinv.col[2].xyz
+ if clamp is not None:
+ if clamp < 0.0:
+ origin_offset.negate()
+ clamp = -clamp
+ if origin_offset.length > clamp:
+ origin_offset.length = clamp
+
+ origin_start -= origin_offset
+
+ view_vector.normalize()
+ return origin_start, view_vector
+
+def out_Location(rv3d, region, orig, vector):
+ view_matrix = rv3d.view_matrix
+ v1 = Vector((int(view_matrix[0][0]*1.5),int(view_matrix[0][1]*1.5),int(view_matrix[0][2]*1.5)))
+ v2 = Vector((int(view_matrix[1][0]*1.5),int(view_matrix[1][1]*1.5),int(view_matrix[1][2]*1.5)))
+
+ hit = intersect_ray_tri(Vector((1,0,0)), Vector((0,1,0)), Vector(), (vector), (orig), False)
+ if hit == None:
+ hit = intersect_ray_tri(v1, v2, Vector(), (vector), (orig), False)
+ if hit == None:
+ hit = intersect_ray_tri(v1, v2, Vector(), (-vector), (orig), False)
+ if hit == None:
+ hit = Vector()
+ return hit
+
+class SnapCache():
+ bvert = None
+ vco = None
+
+ bedge = None
+ v0 = None
+ v1 = None
+ vmid = None
+ vperp = None
+ v2d0 = None
+ v2d1 = None
+ v2dmid = None
+ v2dperp = None
+
+ bface = None
+ fmid = None
+ fnor = None
+
+ out_obj = None
+ out_obmat = None
+ out_obimat = None
+
+
+def snap_utilities(
+ cache, context, obj_matrix_world,
+ bm, mcursor,
+ outer_verts = False,
+ constrain = None,
+ previous_vert = None,
+ ignore_obj = None,
+ increment = 0.0):
+
+ rv3d = context.region_data
+ region = context.region
+ scene = context.scene
+ is_increment = False
+ r_loc = None
+ r_type = None
+ r_len = 0.0
+ bm_geom = None
+
+ if bm.select_history:
+ bm.select_history[0].select = False
+ bm.select_history.clear()
+
+ bpy.ops.view3d.select(location = (int(mcursor.x), int(mcursor.y)))
+
+ if bm.select_history:
+ bm_geom = bm.select_history[0]
+
+ if isinstance(bm_geom, bmesh.types.BMVert):
+ r_type = 'VERT'
+
+ if cache.bvert != bm_geom:
+ cache.bvert = bm_geom
+ cache.vco = obj_matrix_world * cache.bvert.co
+ #cache.v2d = location_3d_to_region_2d(region, rv3d, cache.vco)
+
+ if constrain:
+ location = intersect_point_line(cache.vco, constrain[0], constrain[1])
+ #factor = location[1]
+ r_loc = location[0]
+ else:
+ r_loc = cache.vco
+
+ elif isinstance(bm_geom, bmesh.types.BMEdge):
+ if cache.bedge != bm_geom:
+ cache.bedge = bm_geom
+ cache.v0 = obj_matrix_world * bm_geom.verts[0].co
+ cache.v1 = obj_matrix_world * bm_geom.verts[1].co
+ cache.vmid = 0.5 * (cache.v0 + cache.v1)
+ cache.v2d0 = location_3d_to_region_2d(region, rv3d, cache.v0)
+ cache.v2d1 = location_3d_to_region_2d(region, rv3d, cache.v1)
+ cache.v2dmid = location_3d_to_region_2d(region, rv3d, cache.vmid)
+
+ if previous_vert and previous_vert not in bm_geom.verts:
+ pvert_co = obj_matrix_world * previous_vert.co
+ perp_point = intersect_point_line(pvert_co, cache.v0, cache.v1)
+ cache.vperp = perp_point[0]
+ #factor = point_perpendicular[1]
+ cache.v2dperp = location_3d_to_region_2d(region, rv3d, perp_point[0])
+
+ #else: cache.v2dperp = None
+
+ if constrain:
+ location = intersect_line_line(constrain[0], constrain[1], cache.v0, cache.v1)
+ if location == None:
+ is_increment = True
+ orig, view_vector = region_2d_to_orig_and_view_vector(region, rv3d, mcursor)
+ end = orig + view_vector
+ location = intersect_line_line(constrain[0], constrain[1], orig, end)
+ r_loc = location[0]
+
+ elif cache.v2dperp and\
+ abs(cache.v2dperp[0] - mcursor[0]) < 10 and abs(cache.v2dperp[1] - mcursor[1]) < 10:
+ r_type = 'PERPENDICULAR'
+ r_loc = cache.vperp
+
+ elif abs(cache.v2dmid[0] - mcursor[0]) < 10 and abs(cache.v2dmid[1] - mcursor[1]) < 10:
+ r_type = 'CENTER'
+ r_loc = cache.vmid
+
+ else:
+ if increment and previous_vert in cache.bedge.verts:
+ is_increment = True
+
+ r_type = 'EDGE'
+ fac = fac_nearest_to_segment_2d(mcursor, cache.v2d0, cache.v2d1)
+ fac *= cache.v2d0.z / cache.v2d1.z #convert to fac3d
+ r_loc = cache.v0 + fac * (cache.v1 - cache.v0)
+
+ elif isinstance(bm_geom, bmesh.types.BMFace):
+ is_increment = True
+ r_type = 'FACE'
+
+ if cache.bface != bm_geom:
+ cache.bface = bm_geom
+ cache.fmid = obj_matrix_world*bm_geom.calc_center_median()
+ cache.fnor = bm_geom.normal*obj_matrix_world.inverted()
+
+ orig, view_vector = region_2d_to_orig_and_view_vector(region, rv3d, mcursor)
+ end = orig + view_vector
+ r_loc = intersect_line_plane(orig, end, cache.fmid, cache.fnor, False)
+
+ if constrain:
+ is_increment = False
+ r_loc = intersect_point_line(r_loc, constrain[0], constrain[1])[0]
+
+ else: #OUT
+ is_increment = True
+ r_type = 'OUT'
+
+ orig, view_vector
@@ Diff output truncated at 10240 characters. @@
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