import math import wx from copy import deepcopy from BaseInteractor import _BaseInteractor from sans.guicomm.events import NewPlotEvent, StatusEvent,SlicerParameterEvent,EVT_SLICER_PARS class RadiusInteractor(_BaseInteractor): """ Select an annulus through a 2D plot """ def __init__(self,base,axes,color='black', zorder=5, arc1=None,arc2=None, theta=math.pi/8): _BaseInteractor.__init__(self, base, axes, color=color) self.markers = [] self.axes = axes self.r1 = arc1.get_radius() self.r2 = arc2.get_radius() #print "radius init", self.r1, self.r2 self.theta=theta self.save_theta= theta #self.scale = 10.0 self.move_stop=False self.theta_left=None self.theta_right=None self.arc1= arc1 self.arc2=arc2 #raise "Version error", message x1= self.r1*math.cos(self.theta) y1= self.r1*math.sin(self.theta) x2= self.r2*math.cos(self.theta) y2= self.r2*math.sin(self.theta) self.line = self.axes.plot([x1,x2],[y1,y2], linestyle='-', marker='', color=self.color, visible=True)[0] self.phi= theta self.npts = 20 self.has_move= False self.connect_markers([self.line]) self.update() def set_layer(self, n): """ """ self.layernum = n self.update() def clear(self): """ """ self.clear_markers() try: self.line.remove() except: # Old version of matplotlib for item in range(len(self.axes.lines)): del self.axes.lines[0] def get_angle(self): """ """ return self.theta def update(self,r1=None, r2=None, theta=None): """ Draw the new roughness on the graph. """ if r1 != None: self.r1 = r1 if r2 != None: self.r2 = r2 if theta !=None: self.theta= theta #print "in the edge r1, r2",self.r1,self.r2,math.degrees(self.theta) x1= self.r1*math.cos(self.theta) y1= self.r1*math.sin(self.theta) x2= self.r2*math.cos(self.theta) y2= self.r2*math.sin(self.theta) self.line.set(xdata=[x1,x2], ydata=[y1,y2]) def save(self, ev): """ Remember the roughness for this layer and the next so that we can restore on Esc. """ self.save_theta= math.atan2(ev.y,ev.x) #self.save_theta= self.theta self.base.freeze_axes() def moveend(self, ev): """ """ self.has_move= False self.base.moveend(ev) def restore(self): """ Restore the roughness for this layer. """ self.theta = self.save_theta def move(self, x, y, ev): """ Process move to a new position, making sure that the move is allowed. """ self.theta= math.atan2(y,x) self.has_move= True self.base.base.update() def set_cursor(self,r_min, r_max, theta): """ """ self.theta= theta self.r1= r_min self.r2=r_max self.update() def get_params(self): """ """ params = {} params["radius1"] = self.r1 params["radius2"] = self.r2 params["theta"] = self.theta return params def set_params(self, params): """ """ #print "when here set curcor arc" x1 = params["radius1"] x2 = params["radius2"] theta= params["theta"] self.set_cursor(x1, x2, theta)