Mercurial > MadButterfly

annotate pyink/tween.py @ 1158:1d1f2a1e43f6

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Fix the issue of drawing consquence tween frames
author Thinker K.F. Li <thinker@codemud.net>
date Tue, 28 Dec 2010 13:35:27 +0800
parents 3a891dccabd8
children 1a699dc00fa3
rev   line source
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d4dbcb93aee0 Separate the tween from the main module.
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1 # -*- indent-tabs-mode: t; tab-width: 8; python-indent: 4; -*-
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2 # vim: sw=4:ts=8:sts=4
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3 import traceback
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4 import math
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71c72e8d6755 Refactory cod eof TweenObject.updateTweenContent and MBScene.setCurrentScene().
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5
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6 class TweenObject:
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7 TWEEN_TYPE_NORMAL = 0
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3a891dccabd8 Remove the locate tween. It is a special case for the scale tween
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8 #TWEEN_TYPE_RELOCATE = 1
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9 TWEEN_TYPE_SCALE = 1
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ad9c44a08645 If an object does not exist in the destination group, we should duplicate it.
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10
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11 def __init__(self,doc,dom):
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12 self.document = doc
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13 self.dom = dom
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8f0ee167c5b2 Fix the issue of the new DOM implementation
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14 try:
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15 self.width = float(dom.getAttribute("width"))
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16 self.height = float(dom.getAttribute("height"))
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17 except:
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18 self.width = 640
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19 self.height = 480
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20
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21 def updateMapping(self):
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22 self.nodeToItem={}
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23 root = self.dom
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24 self.updateMappingNode(root)
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25 def updateMappingNode(self,node):
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26 for c in node.childList():
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27 self.updateMappingNode(c)
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28 try:
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29 self.nodeToItem[c.getAttribute("id")] = c
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30 except:
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31 pass
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32 def updateTweenContent(self, duplicate_group, tween_type,
71c72e8d6755 Refactory cod eof TweenObject.updateTweenContent and MBScene.setCurrentScene().
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33 start_scene_group, stop_scene_group, percent):
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34 """
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35 Update the content of the duplicate scene group. We will
71c72e8d6755 Refactory cod eof TweenObject.updateTweenContent and MBScene.setCurrentScene().
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36 use precent, start_scene_group, stop_scene_group to
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37 compute transform matrix and update duplicate scene group
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38 specified.
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39 """
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40 # Collect ref from the obj
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41 node = duplicate_group.firstChild()
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42 dup_nodes = {}
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43 while node:
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44 try:
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45 ref = node.getAttribute("ref")
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46 dup_nodes[ref] = node
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e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
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47 except:
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48 ref = None
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49 pass
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50 node = node.next()
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51 pass
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52
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53 # Collect all nodes in stop scene
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54 stop_nodes = {}
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55 node = stop_scene_group.firstChild()
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56 while node:
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57 try:
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58 node_label = node.getAttribute("ns0:duplicate-src")
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59 stop_nodes[node_label] = node
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60 except:
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61 pass
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62 node = node.next()
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63 pass
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64
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65 #
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66 # Node ID of a node of start scene must be mapped to
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67 # 'ns0:duplicate-src' attribute of a node of stop scene. The
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68 # nodes which can not be mapped to a node of stop scene are
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69 # not manipulated by the tween.
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70 #
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71 # When a scene is duplicated, 'ns0:duplicate-src' attribute of
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72 # nodes, in the new scene, must be setted to ID of respective
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73 # one in the duplicated scene.
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74 #
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75 start_node = start_scene_group.firstChild()
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76 while start_node:
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77 start_node_id = start_node.getAttribute('id')
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78 try:
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79 stop_node = stop_nodes[start_node_id]
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80 except KeyError:
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81 self.updateTweenObject(duplicate_group, tween_type,
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82 start_node, start_node,
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83 percent, dup_node)
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84 start_node = start_node.next()
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85 continue
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86
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87 dup_node = dup_nodes.setdefault(start_node_id, None)
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88
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89 self.updateTweenObject(duplicate_group, tween_type,
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90 start_node, stop_node,
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91 percent, dup_node)
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92 start_node = start_node.next()
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93 pass
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94 pass
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95
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96 def parseTransform(self,obj):
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97 """
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98 Return the transform matrix of an object
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99 """
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100 try:
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101 t = obj.getAttribute("transform")
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102 print t
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103 if t[0:9] == 'translate':
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104 print "translate"
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105 fields = t[10:].split(',')
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106 x = float(fields[0])
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107 fields = fields[1].split(')')
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108 y = float(fields[0])
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109 return [1,0,0,1,x,y]
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110 elif t[0:6] == 'matrix':
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111 print "matrix"
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112 fields=t[7:].split(')')
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113 fields = fields[0].split(',')
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114 return [float(fields[0]),float(fields[1]),float(fields[2]),float(fields[3]),float(fields[4]),float(fields[5])]
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115 except:
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116 #traceback.print_exc()
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117 return [1,0,0,1,0,0]
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118
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119 def invA(self,m):
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120 d = m[0]*m[3]-m[2]*m[1]
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121 return [m[3]/d, -m[1]/d, -m[2]/d, m[0]/d, (m[1]*m[5]-m[4]*m[3])/d, (m[4]*m[2]-m[0]*m[5])/d]
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122
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123 def mulA(self,a,b):
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124 return [a[0]*b[0]+a[1]*b[2],
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125 a[0]*b[1]+a[1]*b[3],
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126 a[2]*b[0]+a[3]*b[2],
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127 a[2]*b[1]+a[3]*b[3],
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128 a[0]*b[4]+a[1]*b[5]+a[4],
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129 a[2]*b[4]+a[3]*b[5]+a[5]]
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130
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131 def decomposition(self,m):
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132 """
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133 Decompose the affine matrix into production of translation,rotation,shear and scale.
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134 The algorithm is documented at http://lists.w3.org/Archives/Public/www-style/2010Jun/0602.html
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135 """
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136 if m[0]*m[3] == m[1]*m[2]:
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137 print "The affine matrix is singular"
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138 return [1,0,0,1,0,0]
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139 A=m[0]
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140 B=m[2]
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141 C=m[1]
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142 D=m[3]
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parents:
diff changeset
143 E=m[4]
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
144 F=m[5]
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
145 sx = math.sqrt(A*A+B*B)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
146 A = A/sx
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
147 B = B/sx
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
148 shear = m[0]*m[1]+m[2]*m[3]
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
149 C = C - A*shear
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
150 D = D - B*shear
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
151 sy = math.sqrt(C*C+D*D)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
152 C = C/sy
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
153 D = D/sy
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
154 r = A*D-B*C
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
155 if r == -1:
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
156 shear = -shear
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
157 sy = -sy
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
158 R = math.atan2(B,A)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
159 return [sx,sy, R, E,F]
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
160
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
161
1146
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
162 def updateTweenObject(self,obj,typ,s,d,p,newobj):
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
163 """
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
164 Generate tweened object in the @obj by using s and d in the @p percent
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
165 http://lists.w3.org/Archives/Public/www-style/2010Jun/0602.html
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
166 """
1157
3a891dccabd8 Remove the locate tween. It is a special case for the scale tween
wycc
parents: 1156
diff changeset
167 if typ == self.TWEEN_TYPE_SCALE:
1146
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
168 self.updateTweenObjectScale(obj,s,d,p,newobj)
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
169 pass
1151
71c72e8d6755 Refactory cod eof TweenObject.updateTweenContent and MBScene.setCurrentScene().
Thinker K.F. Li <thinker@codemud.net>
parents: 1150
diff changeset
170 elif typ == self.TWEEN_TYPE_NORMAL:
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
171 newobj = s.duplicate(self.document)
1141
8f0ee167c5b2 Fix the issue of the new DOM implementation
wycc
parents: 1140
diff changeset
172 newobj.setAttribute("ref", s.getAttribute("id"))
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
173 top = self.document.createElement("svg:g")
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
174 top.appendChild(newobj)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
175 obj.appendChild(top)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
176 pass
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
177
1146
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
178 def updateTweenObjectScale(self,obj,s,d,p,newobj):
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
179 """
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
180 Generate a new group which contains the original group and then
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
181 add the transform matrix to generate a tween frame between the
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
182 origin and destination scene group.
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
183
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
184 We will parse the transform matrix of the @s and @d and then
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
185 generate the matrix which is (1-p) of @s and p percent of @d.
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
186 """
1146
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
187 if newobj == None:
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
188 newobj = s.duplicate(self.document)
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
189 top = self.document.createElement("svg:g")
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
190 top.setAttribute("ref",s.getAttribute("id"))
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
191 top.appendChild(newobj)
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
192 obj.appendChild(top)
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
193 else:
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
194 top = newobj
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
195 newobj = top.firstChild()
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
196
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
197 if s.name() == 'svg:g':
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
198 # Parse the translate or matrix
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
199 #
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
200 # D = B inv(A)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
201 try:
1141
8f0ee167c5b2 Fix the issue of the new DOM implementation
wycc
parents: 1140
diff changeset
202 item = self.nodeToItem[s.getAttribute("id")]
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
203 (ox,oy) = item.getCenter()
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
204 except:
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
205 ox = 0
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
206 oy = 0
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
207 try:
1141
8f0ee167c5b2 Fix the issue of the new DOM implementation
wycc
parents: 1140
diff changeset
208 item = self.nodeToItem[d.getAttribute("id")]
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
209 (dx,dy) = item.getCenter()
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
210 except:
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
211 dx = 0
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
212 dy = 0
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
213
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
214 sm = self.parseTransform(s)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
215 ss = self.decomposition(sm)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
216 dm = self.parseTransform(d)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
217 dd = self.decomposition(dm)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
218 sx = (ss[0]*(1-p)+dd[0]*p)/ss[0]
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
219 sy = (ss[1]*(1-p)+dd[1]*p)/ss[0]
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
220 a = ss[2]*(1-p)+dd[2]*p-ss[2]
1146
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
221 tx = ox*(1-p)+dx*p
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
222 ty = oy*(1-p)+dy*p
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
223 m = [math.cos(a),math.sin(a),-math.sin(a),math.cos(a),0,0]
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
224 m = self.mulA([sx,0,0,sy,0,0],m)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
225 m = self.mulA(m,[1,0,0,1,-ox,oy-self.height])
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
226 m = self.mulA([1,0,0,1,tx,self.height-ty],m)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
227
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
228 top.setAttribute("transform","matrix(%g,%g,%g,%g,%g,%g)" % (m[0],m[2],m[1],m[3],m[4],m[5]))
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
229 else:
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
230 try:
1146
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
231 try:
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
232 sw = float(s.getAttribute("width"))
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
233 except:
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
234 sw = 1
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
235 try:
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
236 sh = float(s.getAttribute("height"))
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
237 except:
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
238 sh = 1
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
239 try:
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
240 dw = float(d.getAttribute("width"))
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
241 except:
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
242 dw = 1
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
243 try:
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
244 dh = float(d.getAttribute("height"))
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
245 except:
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
246 dh = 1
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
247 try:
1141
8f0ee167c5b2 Fix the issue of the new DOM implementation
wycc
parents: 1140
diff changeset
248 item = self.nodeToItem[s.getAttribute("id")]
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
249 (ox,oy) = item.getCenter()
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
250 except:
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
251 ox = 0
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
252 oy = 0
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
253 try:
1141
8f0ee167c5b2 Fix the issue of the new DOM implementation
wycc
parents: 1140
diff changeset
254 item = self.nodeToItem[d.getAttribute("id")]
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
255 (dx,dy) = item.getCenter()
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
256 except:
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
257 dx = 0
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
258 dy = 0
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
259 try:
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
260 sm = self.parseTransform(s)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
261 ss = self.decomposition(sm)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
262 except:
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
263 ss = [1,1,0,0,0]
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
264 pass
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
265 try:
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
266 dm = self.parseTransform(d)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
267 dd = self.decomposition(dm)
1146
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
268 print "dd=",dd
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
269 except:
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
270 dd = [1,1,0,0,0]
1146
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
271 dd[0] = dd[0]*dw/sw
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
272 dd[1] = dd[1]*dh/sh
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
273 print "ss[0]=",ss[0],"dd[0]=",dd[0]
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
274 sx = (ss[0]*(1-p)+dd[0]*p)/ss[0]
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
275 sy = (ss[1]*(1-p)+dd[1]*p)/ss[1]
1146
e14ec6d1a661 CHange the implementation to set the transformation matrix only. This is be more friendly for the animation inside the inskcape.
wycc
parents: 1141
diff changeset
276 print "sx=",sx,"sy=",sy
1140
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
277 a = ss[2]*(1-p)+dd[2]*p-ss[2]
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
278 tx = ox*(1-p)+dx*p
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
279 ty = oy*(1-p)+dy*p
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
280 m = [math.cos(a),math.sin(a),-math.sin(a),math.cos(a),0,0]
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
281 m = self.mulA([sx,0,0,sy,0,0],m)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
282 m = self.mulA(m,[1,0,0,1,-ox,oy-self.height])
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
283 m = self.mulA([1,0,0,1,tx,self.height-ty],m)
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
284
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
285 top.setAttribute("transform","matrix(%g,%g,%g,%g,%g,%g)" % (m[0],m[2],m[1],m[3],m[4],m[5]))
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
286 except:
d4dbcb93aee0 Separate the tween from the main module.
wycc
parents:
diff changeset
287 traceback.print_exc()