# ##### 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 2 # 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, write to the Free Software Foundation, # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. # # ##### END GPL LICENSE BLOCK ##### bl_addon_info = { "name": "Torus Knots", "author": "testscreenings", "version": (0,1), "blender": (2, 5, 3), "api": 31667, "location": "View3D > Add > Curve", "description": "Adds many types of knots", "warning": "", "wiki_url": "http://wiki.blender.org/index.php/Extensions:2.5/Py/"\ "Scripts/Curve/Torus_Knot", "tracker_url": "https://projects.blender.org/tracker/index.php?"\ "func=detail&aid=22403&group_id=153&atid=469", "category": "Add Curve"} ##------------------------------------------------------------ #### import modules import bpy from bpy.props import * from mathutils import * from math import * ##------------------------------------------------------------ # calculates the matrix for the new object # depending on user pref def align_matrix(context): loc = Matrix.Translation(context.scene.cursor_location) obj_align = context.user_preferences.edit.object_align if (context.space_data.type == 'VIEW_3D' and obj_align == 'VIEW'): rot = context.space_data.region_3d.view_matrix.rotation_part().invert().resize4x4() else: rot = Matrix() align_matrix = loc * rot return align_matrix ##------------------------------------------------------------ #### Curve creation functions # get array of vertcoordinates acording to splinetype def vertsToPoints(Verts): vertArray = [] for v in Verts: vertArray += v vertArray.append(1) #for nurbs w=1 return vertArray # create new CurveObject from vertarray and splineType def createCurve(vertArray, props, align_matrix): # options to vars splineType = 'NURBS' name = 'Torus_Knot' # create curve scene = bpy.context.scene newCurve = bpy.data.curves.new(name, type = 'CURVE') # curvedatablock newSpline = newCurve.splines.new(type = splineType) # spline # create spline from vertarray newSpline.points.add(int(len(vertArray)*0.25 - 1)) newSpline.points.foreach_set('co', vertArray) newSpline.use_endpoint_u = True # Curve settings newCurve.dimensions = '3D' newSpline.use_cyclic_u = True newSpline.use_endpoint_u = True newSpline.order_u = 4 if props.geo_surf: newCurve.bevel_depth = props.geo_bDepth newCurve.bevel_resolution = props.geo_bRes newCurve.use_fill_front = False newCurve.use_fill_back = False newCurve.extrude = props.geo_extrude newCurve.offset = props.geo_width newCurve.resolution_u = props.geo_res # create object with newCurve new_obj = bpy.data.objects.new(name, newCurve) # object scene.objects.link(new_obj) # place in active scene new_obj.select = True # set as selected scene.objects.active = new_obj # set as active new_obj.matrix_world = align_matrix # apply matrix return ######################################################################## ####################### Knot Definitions ############################### ######################################################################## #### TORUS KNOT def Torus_Knot_Curve(p=2, q=3, w=1, res=24, formula=0, h=1, u=1 ,v=1, rounds=2): newPoints = [] angle = 2*rounds step = angle/(res-1) scale = h height = w for i in range(res-1): t = ( i*step*pi) x = (2 * scale + cos((q*t)/p*v)) * cos(t * u) y = (2 * scale + cos((q*t)/p*v)) * sin(t * u) z = sin(q*t/p) * height newPoints.append([x,y,z]) return newPoints ##------------------------------------------------------------ # Main Function def main(context, props, align_matrix): # deselect all objects bpy.ops.object.select_all(action='DESELECT') # options splineType = 'NURBS' # get verts verts = Torus_Knot_Curve(props.torus_p, props.torus_q, props.torus_w, props.torus_res, props.torus_formula, props.torus_h, props.torus_u, props.torus_v, props.torus_rounds) # turn verts into array vertArray = vertsToPoints(verts) # create object createCurve(vertArray, props, align_matrix) return class torus_knot_plus(bpy.types.Operator): '''''' bl_idname = "torus_knot_plus" bl_label = "Torus Knot +" bl_options = {'REGISTER', 'UNDO'} bl_description = "adds many types of knots" # align_matrix for the invoke align_matrix = Matrix() #### general options options_plus = BoolProperty(name="plus options", default=False, description="Show more options (the plus part).") #### GEO Options geo_surf = BoolProperty(name="Surface", default=True) geo_bDepth = FloatProperty(name="bevel", default=0.08, min=0, soft_min=0) geo_bRes = IntProperty(name="bevel res", default=2, min=0, soft_min=0, max=4, soft_max=4) geo_extrude = FloatProperty(name="extrude", default=0.0, min=0, soft_min=0) geo_width = FloatProperty(name="width", default=1.0, min=0, soft_min=0) geo_res = IntProperty(name="resolution", default=12, min=1, soft_min=1) #### Parameters torus_res = IntProperty(name="Resoulution", default=200, min=3, soft_min=3, description='Resolution, Number of controlverticies.') torus_p = IntProperty(name="p", default=2, min=1, soft_min=1, #max=1, soft_max=1, description="p") torus_q = IntProperty(name="q", default=3, min=1, soft_min=1, #max=1, soft_max=1, description="q") torus_w = FloatProperty(name="Height", default=1, #min=0, soft_min=0, #max=1, soft_max=1, description="Height in Z") torus_h = FloatProperty(name="Scale", default=1, #min=0, soft_min=0, #max=1, soft_max=1, description="Scale, in XY") torus_u = IntProperty(name="u", default=1, min=1, soft_min=1, #max=1, soft_max=1, description="u") torus_v = IntProperty(name="v", default=1, min=1, soft_min=1, #max=1, soft_max=1, description="v") torus_formula = IntProperty(name="Variation", default=0, min=0, soft_min=0, max=10, soft_max=10) torus_rounds = IntProperty(name="Rounds", default=2, min=1, soft_min=1, #max=1, soft_max=1, description="Rounds") ##### DRAW ##### def draw(self, context): props = self.properties layout = self.layout # general options col = layout.column() #col.prop(props, 'KnotType') waits for more knottypes col.label(text="Torus Knot Parameters") # Parameters box = layout.box() box.prop(props, 'torus_res') box.prop(props, 'torus_w') box.prop(props, 'torus_h') box.prop(props, 'torus_p') box.prop(props, 'torus_q') box.prop(props, 'options_plus') if props.options_plus: box.prop(props, 'torus_u') box.prop(props, 'torus_v') box.prop(props, 'torus_rounds') # surface Options col = layout.column() col.label(text="Geometry Options") box = layout.box() box.prop(props, 'geo_surf') if props.geo_surf: box.prop(props, 'geo_bDepth') box.prop(props, 'geo_bRes') box.prop(props, 'geo_extrude') #box.prop(props, 'geo_width') # not really good box.prop(props, 'geo_res') ##### POLL ##### @classmethod def poll(cls, context): return context.scene != None ##### EXECUTE ##### def execute(self, context): # turn off undo undo = bpy.context.user_preferences.edit.use_global_undo bpy.context.user_preferences.edit.use_global_undo = False props = self.properties if not props.options_plus: props.torus_rounds = props.torus_p # main function main(context, props, self.align_matrix) # restore pre operator undo state bpy.context.user_preferences.edit.use_global_undo = undo return {'FINISHED'} ##### INVOKE ##### def invoke(self, context, event): # store creation_matrix self.align_matrix = align_matrix(context) self.execute(context) return {'FINISHED'} ################################################################################ ##### REGISTER ##### def torus_knot_plus_button(self, context): self.layout.operator(torus_knot_plus.bl_idname, text="Torus Knot +", icon="PLUGIN") def register(): bpy.types.INFO_MT_curve_add.append(torus_knot_plus_button) def unregister(): bpy.types.INFO_MT_curve_add.remove(torus_knot_plus_button) if __name__ == "__main__": register()